# Stack Gems

> Sharp, opinionated reviews of developer tools. Agent-curated, human-vetted.

Stack Gems is a curated catalog of developer tools with honest, detailed reviews.
This site is agent-operated with human editorial veto.

## For agents (start here)

- [MCP server](/for-agents.md): remote, read-only, no auth. Streamable HTTP at https://stackgems.com/api/mcp. Tools: search_gems, get_gem, best_for, get_alternatives, list_categories. Card: /.well-known/mcp.json
- [OpenAPI spec](/openapi.json): JSON API at /api/gems (filter, sort, paginate; CORS *, no key)
- [Agent guide](/for-agents.md): also served at /api/for-agents
- [Best-of lists](/best): one per category, free and open source first, verdict and Catch per pick (/best/{subcategory})
- [Alternatives](/alternatives/cursor): free and open-source alternatives per tool (/alternatives/{slug})
- [New this week](/new) · RSS: /feed.xml (gems), /log/feed.xml (log)
- [Full catalog in one file](/llms-full.txt)

## Categories

- [AI Agents](/stacks/agents): 364 gems
- [Next.js](/stacks/nextjs): 57 gems
- [Python](/stacks/python): 33 gems
- [Shopify](/stacks/shopify): 12 gems
- [Databases](/stacks/databases): 57 gems
- [DevOps](/stacks/devops): 153 gems
- [Design](/stacks/design): 17 gems
- [Observability](/stacks/observability): 44 gems
- [Rust](/stacks/rust): 51 gems
- [Payments](/stacks/payments): 27 gems
- [Comms](/stacks/comms): 26 gems
- [Notifications](/stacks/notifications): 23 gems
- [Libraries](/stacks/libraries): 91 gems

## All Gems

- [Claude Code](/gems/claude-code.md): Terminal-first coding agent with deep repository context
- [Cursor](/gems/cursor.md): The AI-first code editor that understands your codebase
- [Devin](/gems/devin.md): Autonomous AI engineer for defined engineering tasks
- [Stagehand](/gems/stagehand.md): AI-native browser automation that mixes code and natural language
- [Browser Use](/gems/browser-use.md): Open-source framework for LLM-driven browser agents
- [Browserbase](/gems/browserbase.md): Managed browser infrastructure for AI agents at scale
- [Playwright MCP](/gems/playwright-mcp.md): Official Microsoft MCP server for Playwright browser automation
- [Mem0](/gems/mem0.md): Memory infrastructure for AI agents that actually persists
- [Braintrust](/gems/braintrust.md): Eval-first LLM platform that blocks bad prompts in CI
- [Langfuse](/gems/langfuse.md): Open-source LLM observability you can self-host
- [Aider](/gems/aider.md): AI pair programming in your terminal with any model
- [Cline](/gems/cline.md): VS Code extension for human-in-the-loop AI coding
- [Letta](/gems/letta.md): Episodic memory for agents that think across sessions
- [Vercel AI SDK](/gems/vercel-ai-sdk.md): Unified TypeScript SDK for building AI applications
- [LangChain](/gems/langchain.md): The OG LLM orchestration framework
- [LangGraph](/gems/langgraph.md): Stateful multi-actor agent workflows
- [CrewAI](/gems/crewai.md): Role-playing agents that actually ship
- [Haystack](/gems/haystack.md): Production NLP pipelines from deepset
- [LlamaIndex](/gems/llamaindex.md): Data framework for LLM applications
- [Vercel](/gems/vercel.md): The platform that made Next.js deployment trivial
- [Prisma](/gems/prisma.md): Type-safe database access with killer DX
- [Drizzle ORM](/gems/drizzle.md): TypeScript ORM that feels like SQL
- [tRPC](/gems/trpc.md): End-to-end typesafe APIs without codegen
- [Clerk](/gems/clerk.md): Auth that actually ships with your UI
- [Auth.js](/gems/authjs.md): Authentication for the web, framework-agnostic
- [UploadThing](/gems/uploadthing.md): File uploads that do not make you cry
- [Resend](/gems/resend.md): Email API designed for developers
- [Neon](/gems/neon.md): Serverless Postgres that branches
- [PlanetScale](/gems/planetscale.md): Serverless MySQL with Vitess DNA
- [Inngest](/gems/inngest.md): Background jobs and workflows with zero infrastructure
- [Trigger.dev](/gems/trigger-dev.md): Open-source background jobs for Next.js
- [FastAPI](/gems/fastapi.md): Modern Python APIs at startup speed
- [Pydantic](/gems/pydantic.md): Data validation using Python type hints
- [uv](/gems/uv.md): Python packaging at Rust speed
- [Ruff](/gems/ruff.md): Python linter faster than your test suite
- [Polars](/gems/polars.md): DataFrames that respect your CPU
- [Typer](/gems/typer.md): CLI apps with type hints and zero effort
- [Rich](/gems/rich.md): Beautiful terminal output without the pain
- [HTTPX](/gems/httpx.md): Async HTTP client for modern Python
- [SQLModel](/gems/sqlmodel.md): SQL + Pydantic in one elegant package
- [Litestar](/gems/litestar.md): The FastAPI alternative with batteries
- [Textual](/gems/textual.md): Build TUIs like web apps
- [Hydrogen](/gems/hydrogen.md): Shopify React framework for headless commerce
- [Remix](/gems/remix.md): Full stack React that Shopify acquired
- [Sanity](/gems/sanity.md): Headless CMS that developers actually like
- [Shopify CLI](/gems/shopify-cli.md): The development tool every Shopify dev needs
- [Checkout UI Extensions](/gems/checkout-extensions.md): Customize Shopify checkout safely
- [GraphQL Code Generator](/gems/graphql-codegen.md): Type-safe Shopify API without manual typing
- [Shopify App JS](/gems/shopify-app-js.md): Official Node.js library for Shopify apps
- [Supabase](/gems/supabase.md): Open-source Firebase alternative built on Postgres
- [Turso](/gems/turso.md): SQLite at the edge with libSQL
- [Redis](/gems/redis.md): The in-memory data store everyone uses
- [Upstash](/gems/upstash.md): Serverless Redis and Kafka
- [Pinecone](/gems/pinecone.md): Vector database for AI applications
- [Qdrant](/gems/qdrant.md): Open-source vector database with filtering
- [ClickHouse](/gems/clickhouse.md): Column-oriented database for analytics
- [Timescale](/gems/timescale.md): Time-series superpowers for Postgres
- [DuckDB](/gems/duckdb.md): In-process OLAP database
- [SQLite](/gems/sqlite.md): The most deployed database in the world
- [GitHub Actions](/gems/github-actions.md): CI/CD that lives where your code does
- [Docker](/gems/docker.md): Container runtime that changed deployment
- [Kubernetes](/gems/kubernetes.md): Container orchestration at scale
- [Pulumi](/gems/pulumi.md): Infrastructure as code in real languages
- [Fly.io](/gems/fly-io.md): Deploy apps to VMs close to your users
- [Railway](/gems/railway.md): Deploy from GitHub with zero configuration
- [Coolify](/gems/coolify.md): Self-hosted Heroku alternative
- [CapRover](/gems/caprover.md): Free PaaS you can run anywhere
- [Tailwind CSS](/gems/tailwindcss.md): Utility-first CSS that developers love
- [shadcn/ui](/gems/shadcn-ui.md): Copy-paste components built on Radix
- [Radix UI](/gems/radix-ui.md): Unstyled, accessible React components
- [Framer Motion](/gems/framer-motion.md): Production-ready React animations
- [Figma](/gems/figma.md): Collaborative design tool in the browser
- [Storybook](/gems/storybook.md): UI component workshop
- [Lucide](/gems/lucide.md): Beautiful open-source icons
- [Panda CSS](/gems/panda-css.md): CSS-in-JS with build-time extraction
- [Sentry](/gems/sentry.md): Error tracking that actually helps
- [Grafana](/gems/grafana.md): Dashboards for everything observable
- [Prometheus](/gems/prometheus.md): Time-series metrics for cloud-native
- [OpenTelemetry](/gems/opentelemetry.md): Vendor-neutral observability framework
- [Datadog](/gems/datadog.md): Unified observability platform
- [Axiom](/gems/axiom.md): Log management without limits
- [Better Stack](/gems/betterstack.md): Uptime monitoring and incident management
- [Highlight.io](/gems/highlight-io.md): Open-source session replay and monitoring
- [Rust](/gems/rust-lang.md): Systems programming without the footguns
- [Tokio](/gems/tokio.md): Async runtime for Rust
- [Axum](/gems/axum.md): Web framework from the Tokio team
- [Actix Web](/gems/actix-web.md): Fast Rust web framework
- [Serde](/gems/serde.md): Serialization framework for Rust
- [SQLx](/gems/sqlx.md): Compile-time checked SQL for Rust
- [Tauri](/gems/tauri.md): Build desktop apps with web tech and Rust
- [Leptos](/gems/leptos.md): Full-stack Rust web framework
- [clap](/gems/clap.md): Command line argument parser for Rust
- [OpenAI Codex CLI](/gems/openai-codex-cli.md): Apache-2.0 OpenAI agent: CLI, IDE, app and cloud
- [Goose](/gems/goose.md): Local-first Rust agent with MCP at its core
- [OpenHands](/gems/openhands.md): Self-hostable autonomous software engineer
- [OpenClaw 2.0](/gems/openclaw.md): Coding and personal agent across 29 messaging channels
- [Needle 2](/gems/needle.md): 14MB on-device tool-calling model
- [Mastra](/gems/mastra.md): TypeScript agent runtime with typed agents and workflows
- [E2B](/gems/e2b.md): Firecracker sandboxes for untrusted agent code
- [Convex](/gems/convex.md): Reactive TypeScript backend with real-time sync
- [Gemini CLI](/gems/gemini-cli.md): Google open-source terminal agent powered by Gemini
- [Chrome DevTools MCP](/gems/chrome-devtools-mcp.md): Official Chrome DevTools as an MCP server for coding agents
- [Crush](/gems/crush.md): Charm-grade TUI coding agent with LSP and mid-session model switch
- [Pydantic AI](/gems/pydantic-ai.md): Typed Python agent loop with a snap-on Coder harness
- [Worktrunk](/gems/worktrunk.md): Git worktrees that spawn an agent in one switch
- [agent-browser](/gems/agent-browser.md): Vercel Labs Rust CLI with compact a11y refs for agents
- [PostHog](/gems/posthog.md): Product analytics, flags, replay, and errors in one MIT-core stack
- [Better Auth](/gems/better-auth.md): TypeScript auth that lives in your app, not a rented IdP
- [Hono](/gems/hono.md): Tiny TypeScript web framework that runs on every runtime
- [Stripe CLI](/gems/stripe-cli.md): Official Stripe terminal for webhooks, events, and API objects
- [ntfy](/gems/ntfy.md): HTTP pub-sub notifications you can curl from cron
- [Phaser](/gems/phaser.md): MIT HTML5 2D game framework with scenes, physics, and tilemaps
- [Polar](/gems/polar.md): Apache-2.0 merchant-of-record billing for indie and AI products
- [PocketBase](/gems/pocketbase.md): SQLite backend, auth, and admin UI in one Go binary
- [Biome](/gems/biome.md): Rust formatter and linter that replaces Prettier plus ESLint
- [Kamal](/gems/kamal.md): Deploy Docker containers to your own VMs with one CLI
- [n8n](/gems/n8n.md): Fair-code workflow automation you can self-host
- [Hyperswitch](/gems/hyperswitch.md): Apache-2.0 payment orchestrator you can self-host
- [Logto](/gems/logto.md): MPL-2.0 identity platform with a 50k-MAU free Cloud
- [SuperTokens](/gems/supertokens.md): Apache-2.0 session auth you can self-host with no MAU cap
- [Novu](/gems/novu.md): MIT notification workflows with a real 0 USD Cloud
- [LiveKit](/gems/livekit.md): Apache-2.0 realtime rooms, SFU, and agents
- [Chatwoot](/gems/chatwoot.md): MIT-core support inbox you can self-host for $0/agent
- [Socket.IO](/gems/socket-io.md): MIT realtime library with fallbacks, not a hosted product
- [Listmonk](/gems/listmonk.md): AGPL-3.0 self-hosted newsletters and transactional mail
- [PixiJS](/gems/pixijs.md): MIT 2D WebGPU/WebGL renderer, not a game engine
- [Babylon.js](/gems/babylonjs.md): Apache-2.0 3D engine for the web, now on v9
- [PlayCanvas](/gems/playcanvas.md): MIT WebGL2/WebGPU engine plus an optional hosted Editor
- [Colyseus](/gems/colyseus.md): MIT Node multiplayer rooms with state sync
- [KAPLAY](/gems/kaplay.md): MIT successor to Kaboom for playground-first 2D games
- [oRPC](/gems/orpc.md): MIT end-to-end typed TypeScript RPC
- [SST](/gems/sst.md): MIT infrastructure-as-code for AWS, with live Lambda dev
- [Zed](/gems/zed.md): GPL-3.0 GPU-accelerated editor with first-party agents
- [Mise](/gems/mise.md): MIT polyglot runtime manager, the asdf successor that is fast
- [Dagger](/gems/dagger.md): Apache-2.0 CI as containers, programmable in your language
- [Excalidraw](/gems/excalidraw.md): MIT virtual whiteboard with the hand-drawn look
- [TigerBeetle](/gems/tigerbeetle.md): Apache-2.0 financial-transactions database, not general OLTP
- [Bento](/gems/bento.md): MIT slide decks as a single HTML file
- [Kill Bill](/gems/killbill.md): Apache-2.0 in-house subscriptions and payments, no % take-rate
- [Lago](/gems/lago.md): AGPLv3 usage and entitlements metering you self-host
- [Plunk](/gems/plunk.md): AGPL-3.0 transactional email, workflows, and broadcasts
- [Centrifugo](/gems/centrifugo.md): Apache-2.0 Go realtime server binary, not in-process Socket.IO
- [Apprise](/gems/apprise.md): BSD-2-Clause CLI that talks to a hundred notifiers
- [authentik](/gems/authentik.md): MIT-core self-hosted IdP; enterprise/ is not MIT
- [Hanko](/gems/hanko.md): AGPLv3 passkeys-first auth with a 10k-MAU free Cloud
- [ZITADEL](/gems/zitadel.md): AGPLv3 identity Cloud at US$0/Month — 100 DAU, not Logto 50k MAU
- [Kinde](/gems/kinde.md): Hosted auth plus billing, $0 forever, 10,500 MAU, no OSS
- [Authelia](/gems/authelia.md): Apache-2.0 reverse-proxy SSO, not a full IdP like authentik
- [Liveblocks](/gems/liveblocks.md): Hosted collab rooms; Free $0 pauses at the cap
- [Yjs](/gems/yjs.md): MIT CRDT library, not a hosted collab product
- [Gotify](/gems/gotify.md): MIT self-host push server; Android-first, no ntfy.sh twin
- [Matter.js](/gems/matter-js.md): MIT 2D rigid-body physics, not a Phaser replacement
- [BTCPay Server](/gems/btcpay-server.md): MIT self-hosted Bitcoin/LN, 0% fees to your wallet
- [Medusa](/gems/medusa.md): MIT commerce OS you self-host; Cloud from $29/mo
- [pretix](/gems/pretix.md): AGPL-3.0-with-additional-terms event tickets and POS
- [OpenMeter](/gems/openmeter.md): Apache-2.0 usage-event metering; Cloud is Kong Konnect now
- [Keycloak](/gems/keycloak.md): Apache-2.0 CNCF-incubation Java IAM: OIDC, OAuth, SAML, LDAP
- [Dex](/gems/dex-idp.md): Apache-2.0 federated OIDC IdP that owns no user state
- [Mercure](/gems/mercure.md): AGPL-3.0 SSE hub; homepage still says MIT
- [Spree Commerce](/gems/spree.md): BSD-3-Clause Ruby commerce OS; Free Sandbox, no platform fees
- [Sylius](/gems/sylius.md): MIT Symfony commerce; Plus is the commercial add-on
- [Kanidm](/gems/kanidm.md): MPL-2.0 Rust IdP aiming to replace needing Keycloak
- [NATS](/gems/nats.md): Apache-2.0 subject-based messaging and streaming fabric
- [AnyCable](/gems/anycable.md): MIT realtime for Action Cable with delivery guarantees
- [mediasoup](/gems/mediasoup.md): ISC embeddable SFU as a Node module or Rust crate
- [melonJS](/gems/melonjs.md): MIT 2D engine: WebGPU to WebGL2 to Canvas AUTO, zero deps
- [Tone.js](/gems/tonejs.md): MIT Web Audio: synths, Transport, effects, sample-accurate
- [InvoiceShelf](/gems/invoiceshelf.md): AGPL-3.0 self-host invoices, estimates, expenses, client portal
- [Bagisto](/gems/bagisto.md): MIT Laravel/Vue commerce with marketplace and B2B
- [PrestaShop](/gems/prestashop.md): OSL-3.0 classic PHP cart; pitch the core, not the module store
- [Cerbos](/gems/cerbos.md): Apache-2.0 authZ PDP: YAML policies, run anywhere
- [OpenFGA](/gems/openfga.md): Apache-2.0 Zanzibar-style ReBAC with a Check API
- [PeerJS](/gems/peerjs.md): MIT browser P2P WebRTC with free cloud or self-host signaling
- [Rapier](/gems/rapier.md): Apache-2.0 Rust/WASM physics: 2D+3D, joints, SIMD
- [Mautic](/gems/mautic.md): GPL-3.0 self-host marketing automation; hosted trial is not free
- [Topaz](/gems/topaz.md): Apache-2.0 authZ: OPA Rego + embedded Zanzibar in one container
- [Pion WebRTC](/gems/pion-webrtc.md): MIT embeddable Go WebRTC library — not a rooms product
- [Janus Gateway](/gems/janus-gateway.md): GPL-3.0 plugin-core WebRTC gateway (SIP, VideoRoom, streaming)
- [SocketCluster](/gems/socketcluster.md): MIT Node pub/sub+RPC+JWT with SCC scale-out
- [Inkvoice](/gems/inkvoice.md): MIT freelancer invoicing; self-host primary, tiny Cloud Free
- [Edgepush](/gems/edgepush.md): AGPL server + MIT SDK: BYO APNs/FCM on Cloudflare Workers
- [Defold](/gems/defold.md): Source-available Lua game engine; forever free, not OSI Open Source
- [Shove](/gems/shove.md): MIT end-to-end Go device-push relay
- [Postal](/gems/postal.md): MIT self-hosted mail delivery: SMTP + HTTP API
- [Hyvor Relay](/gems/hyvor-relay.md): AGPL-3.0 email relay; Self-Hosted Free Forever unlimited
- [Cute Framework](/gems/cute-framework.md): zlib/Unlicense C/C++ native-first framework + Emscripten
- [Godot](/gems/godot.md): MIT engine with HTML5/Wasm+WebGL2; Compatibility mode for embeds
- [Unleash](/gems/unleash.md): AGPLv3 feature flags; OSS caps 1 project / 2 environments
- [Flagsmith](/gems/flagsmith.md): BSD-3-Clause flags; Cloud Free 50k req/mo, self-host uncapped
- [GrowthBook](/gems/growthbook.md): MIT-core flags+experiments; Cloud Starter Free, self-host unlimited users
- [WorkOS](/gems/workos.md): Proprietary AuthKit: first 1M MAUs Free, not OSS
- [Descope](/gems/descope.md): Proprietary auth: Free Forever 7500 MAUs / 10 tenants / 3 SSO
- [Casdoor](/gems/casdoor.md): Apache-2.0 UI-first IdP; Hosted Free 25k MAU, self-host primary
- [Laravel Reverb](/gems/laravel-reverb.md): MIT first-party Laravel WebSocket server
- [Tuwunel](/gems/tuwunel.md): Apache-2.0 Matrix homeserver; official conduwuit successor
- [Bevy](/gems/bevy.md): MIT/Apache Rust ECS engine with first-party Web
- [Textbee](/gems/textbee.md): MIT Android SMS gateway; Hosted Free 1 device/50 msgs/day
- [Heaps](/gems/heaps.md): MIT Haxe+HashLink engine; HTML5/WebGL; Dead Cells stack
- [SimpleWebAuthn](/gems/simplewebauthn.md): MIT passkeys ceremony library — not an IdP
- [raylib](/gems/raylib.md): zlib/libpng C game library + Emscripten web
- [Mailu](/gems/mailu.md): MIT full mailbox stack: SMTP/IMAP/webmail — not tx API
- [GDevelop](/gems/gdevelop.md): MIT event/no-code engine + HTML5; Pro required above $50k revenue
- [matrix-js-sdk](/gems/matrix-js-sdk.md): Apache-2.0 Matrix client library — needs a homeserver
- [ParadeDB](/gems/paradedb.md): AGPL-3.0 Postgres search + analytics; Community free forever
- [Eclipse Mosquitto](/gems/mosquitto.md): EPL-2.0 / BSD-3 MQTT broker; OSS self-host forever free
- [RPG-JS](/gems/rpg-js.md): MIT browser RPG/MMORPG TypeScript framework; Free Engine $0
- [Garage](/gems/garage.md): AGPL-3.0 S3-compatible store for small geo-distributed hosts
- [Infisical](/gems/infisical.md): MIT secrets; Cloud Free forever 5 identities; ee/ needs LICENSE_KEY
- [Valkey](/gems/valkey.md): BSD-3-Clause forever-OSS Redis-protocol KV after the license fork
- [Litestream](/gems/litestream.md): Apache-2.0 SQLite WAL replication to S3 or local disk
- [OpenBao](/gems/openbao.md): MPL-2.0 Vault-compatible secrets engine after the Vault fork
- [Temporal](/gems/temporal.md): MIT self-host workflow engine; Cloud is credits then paid
- [Caddy](/gems/caddy.md): Apache-2.0 reverse proxy with automatic HTTPS by default
- [Oxc](/gems/oxc.md): MIT Rust JS/TS toolchain: parser, linter, and friends
- [Deno](/gems/deno.md): MIT TypeScript runtime forever; Deploy free tier is real but separate
- [ty](/gems/ty.md): MIT Astral Python type checker (beta) in Rust
- [Ory Open Source](/gems/ory.md): Apache-2.0 modular Go IAM: Kratos, Hydra, Keto, Oathkeeper
- [Galacean Engine](/gems/galacean.md): MIT Ant Group TypeScript WebGL engine + browser Editor
- [Sockudo](/gems/sockudo.md): MIT Rust Pusher V1 edge + Protocol V2 recovery/history/push
- [Paymenter](/gems/paymenter.md): MIT hosting billing; self-host free, cloud PaaS $5/mo paid
- [Pocket ID](/gems/pocket-id.md): BSD-2-Clause passkey-only OIDC IdP; self-host only
- [Tinyauth](/gems/tinyauth.md): AGPL-3.0 one-binary proxy auth + Certified OIDC
- [SolidInvoice](/gems/solidinvoice.md): MIT Symfony invoicing; self-host free, Cloud trial paid
- [SpiceDB](/gems/spicedb.md): Apache-2.0 Google Zanzibar permissions DB; AuthZed Cloud optional
- [Atlas](/gems/atlas.md): Apache-2.0 schema-as-code CLI; Cloud CI/governance is paid
- [Hatchet](/gems/hatchet.md): MIT durable tasks/agents on Postgres; Cloud free tier real
- [LiteLLM](/gems/litellm.md): MIT OpenAI-compatible gateway to 100+ LLMs; Enterprise SSO paid
- [Electric](/gems/electric.md): Apache-2.0 Postgres read-path sync; Cloud PAYG under $5 waived
- [Autumn](/gems/autumn.md): Apache-2.0 Stripe billing layer; Free to 8K billing volume
- [OpenTofu](/gems/opentofu.md): MPL-2.0 Linux Foundation Terraform fork; truly OSS IaC
- [SigNoz](/gems/signoz.md): MIT-core OTel APM (logs/metrics/traces); Cloud from $49/mo
- [Meilisearch](/gems/meilisearch.md): MIT typo-tolerant search engine; Cloud managed, EE sharding paid
- [Payload](/gems/payload.md): MIT Next.js-native headless CMS; Cloud new deploys paused
- [Headscale](/gems/headscale.md): BSD-3 self-hosted Tailscale control server
- [Woodpecker CI](/gems/woodpecker.md): Apache-2.0 container-native CI; self-host forever, no paid tier
- [Bytebase](/gems/bytebase.md): MIT-core DB change governance; Community free to 20 users/10 instances
- [Knock](/gems/knock.md): Hosted notification workflows; Developer free to 10k messages/mo
- [Windmill](/gems/windmill.md): AGPLv3 scripts→workflows/UIs/agents; CE free self-host unlimited runs
- [Trivy](/gems/trivy.md): Apache-2.0 all-in-one vuln/IaC/secret/SBOM scanner; no paid tier
- [dbmate](/gems/dbmate.md): MIT framework-agnostic SQL migration CLI; single Go binary
- [NetBird](/gems/netbird.md): WireGuard mesh ZTNA; Cloud free 5 users/100 machines, self-host AGPL plane
- [Excalibur.js](/gems/excalibur.md): BSD-2 TypeScript 2D HTML5 game engine; free forever
- [PartyKit](/gems/partykit.md): MIT realtime rooms on Cloudflare Durable Objects; pay CF Workers only
- [Cosign](/gems/cosign.md): Apache-2.0 Sigstore keyless container/artifact signing CLI
- [FusionAuth](/gems/fusionauth.md): Source-available CIAM; Community self-host free unlimited users
- [OneSignal](/gems/onesignal.md): Multi-channel messaging SaaS; Free now capped at 1k mobile MAU
- [Paddle CLI](/gems/paddle-cli.md): MIT community CLI for full Paddle Billing API; agent-native
- [Promptfoo](/gems/promptfoo.md): MIT LLM evals & red-teaming CLI; Community free, 10k probes/mo
- [DeepEval](/gems/deepeval.md): Apache-2.0 pytest-style LLM/agent evals; Confident AI is the paid cloud
- [Graphiti](/gems/graphiti.md): Apache-2.0 temporal knowledge graphs for agent memory; Zep's OSS engine
- [Gitleaks](/gems/gitleaks.md): MIT secret scanner for git/dirs/stdin; CLI free, org Action needs free key
- [Grype](/gems/grype.md): Apache-2.0 SBOM-first vulnerability scanner from Anchore; free CLI
- [Saleor](/gems/saleor.md): BSD-3 GraphQL headless commerce; self-host free, Cloud from $1599/mo
- [Instructor](/gems/instructor.md): MIT Pydantic structured outputs for any LLM; free library
- [smolagents](/gems/smolagents.md): Apache-2.0 minimal code-agent framework from Hugging Face
- [MagicBell](/gems/magicbell.md): Multichannel notification API + inbox; Builder free to 1k deliveries/mo
- [Stytch](/gems/stytch.md): Auth SaaS with no feature gates; free to 10k MAU + 5 SSO/SCIM
- [Invoice Ninja](/gems/invoice-ninja.md): ELv2 source-available invoicing; self-host free, hosted Free 5 clients
- [Traefik](/gems/traefik.md): MIT dynamic reverse proxy for Docker/K8s ingress
- [Penpot](/gems/penpot.md): MPL-2.0 Figma-class design; self-host forever + Cloud Professional $0
- [Vite](/gems/vite.md): MIT next-gen frontend tooling — dev server + build
- [Zod](/gems/zod.md): MIT TypeScript-first schema validation with static type inference
- [Lefthook](/gems/lefthook.md): MIT Go manager for polyglot repo git-hooks
- [just](/gems/just.md): CC0-1.0 command runner — modern Makefile replacement
- [Zellij](/gems/zellij.md): MIT Rust terminal workspace with layouts and plugins
- [Flux](/gems/flux.md): Apache-2.0 CNCF GitOps Toolkit for Kubernetes
- [Ollama](/gems/ollama.md): MIT local model runner — free forever; Pro cloud $20/mo
- [Continue](/gems/continue.md): Apache-2.0 open-source coding assistant — GitHub is source of truth
- [lazygit](/gems/lazygit.md): MIT Go terminal UI for git
- [Starship](/gems/starship.md): ISC cross-shell prompt — needs a Nerd Font
- [Uptime Kuma](/gems/uptime-kuma.md): MIT self-host uptime monitoring and status pages
- [Bun](/gems/bun.md): MIT JS runtime + install + test + bundle (JSC linked)
- [Helix](/gems/helix.md): MPL-2.0 modal terminal editor — tree-sitter + LSP
- [TanStack Query](/gems/tanstack-query.md): MIT server-state cache for async data (React Query lineage)
- [Argo CD](/gems/argo-cd.md): Apache-2.0 CNCF declarative GitOps CD for Kubernetes
- [pnpm](/gems/pnpm.md): MIT content-addressable Node pkg manager
- [Vitest](/gems/vitest.md): MIT Vite-native unit/integration test runner
- [Astro](/gems/astro.md): MIT content-first web framework with islands
- [Playwright](/gems/playwright.md): Apache-2.0 cross-browser library and CLI
- [SvelteKit](/gems/sveltekit.md): MIT full-stack Svelte framework
- [Helm](/gems/helm.md): Apache-2.0 Kubernetes package manager
- [k9s](/gems/k9s.md): Apache-2.0 terminal UI for Kubernetes
- [fzf](/gems/fzf.md): MIT command-line fuzzy finder
- [sqlc](/gems/sqlc.md): MIT type-safe code gen from SQL
- [Elysia](/gems/elysia.md): MIT ergonomic Bun-first web framework
- [Turborepo](/gems/turbo.md): MIT Rust monorepo build system (JS/TS)
- [CodeGraph](/gems/codegraph.md): MIT local AST code knowledge graph for coding agents
- [Repomix](/gems/repomix.md): MIT pack entire repo into one AI-friendly file
- [Gitingest](/gems/gitingest.md): MIT turn any GitHub URL into prompt-ready ingest
- [files-to-prompt](/gems/files-to-prompt.md): Apache-2.0 concatenate a directory into one LLM prompt
- [Chroma](/gems/chroma.md): Apache-2.0 open-source embedding database for AI apps
- [LanceDB](/gems/lancedb.md): Apache-2.0 embedded multimodal vector store on Lance
- [Weaviate](/gems/weaviate.md): BSD-3-Clause OSS vector database with hybrid search
- [Milvus Lite](/gems/milvus-lite.md): Apache-2.0 lightweight Milvus for local vector search
- [libSQL](/gems/libsql.md): MIT open-contribution fork of SQLite (Turso engine)
- [sqlite-vec](/gems/sqlite-vec.md): Apache-2.0 vector search as a SQLite extension
- [USearch](/gems/usearch.md): Apache-2.0 fast similarity search across languages
- [Threlte](/gems/threlte.md): MIT Three.js framework for Svelte
- [Theatre.js](/gems/theatre-js.md): Apache-2.0 motion design editor for the web
- [Rive](/gems/rive.md): MIT Wasm/JS runtime for interactive Rive animations
- [Anubis](/gems/anubis.md): MIT PoW challenge layer vs AI scrapers in front of Caddy/Traefik
- [Tailcat](/gems/tailcat.md): BSD-3 WireGuard+DERP netcat without Tailscale control plane
- [Typesense](/gems/typesense.md): GPL-3.0 typo-tolerant search; Cloud managed paid
- [BullMQ](/gems/bullmq.md): MIT Redis-backed Node job queue vs Inngest/Trigger/Temporal SaaS
- [Mailpit](/gems/mailpit.md): MIT local/CI SMTP sink — MailHog successor, not delivery
- [VictoriaMetrics](/gems/victoriametrics.md): Apache-2.0 Prom-compatible TSDB storage swap, not full APM UI
- [Vector](/gems/vector.md): MPL-2.0 logs/metrics/traces data plane vs OTel Collector/Alloy
- [moon](/gems/moon.md): MIT VCS-aware monorepo task graph beyond Turborepo
- [Nuxt](/gems/nuxt.md): MIT full-stack Vue metaframework with Nitro
- [Kysely](/gems/kysely.md): MIT type-safe TypeScript SQL query builder
- [direnv](/gems/direnv.md): MIT per-directory env loader for any shell
- [age](/gems/age.md): BSD-3 simple file encryption by FiloSottile
- [Forgejo](/gems/forgejo.md): GPLv3+ community soft-fork of Gitea for self-hosted git
- [Dioxus](/gems/dioxus.md): Apache-2.0 Rust UI for web, desktop, and mobile
- [Jitsi Meet](/gems/jitsi.md): Apache-2.0 self-host Meet + free meet.jit.si; JaaS optional
- [Hexclave](/gems/hexclave.md): MIT clients / AGPLv3 server auth; Cloud Free ≤10k forever
- [OpenCode](/gems/opencode.md): MIT OSS coding agent: CLI, TUI, desktop; BYOK/local
- [Kilo Code](/gems/kilo.md): MIT OSS IDE+CLI agent; active Cline/Roo line + MCP marketplace
- [Context7](/gems/context7.md): MIT MCP client for live library docs; free anon / free key
- [Serena](/gems/serena.md): MIT MCP toolkit: symbol-level retrieve/edit via free LSP
- [SuperGateway](/gems/supergateway.md): MIT stdio↔SSE/WS bridge for MCP transports
- [FastMCP](/gems/fastmcp.md): Apache-2.0 framework to build MCP servers/clients/apps
- [SWE-agent](/gems/swe-agent.md): MIT research OSS coding agent; BYOK; mini is successor
- [Bruno](/gems/bruno.md): MIT git-native API client; Pro/Ultimate are optional seats
- [zoxide](/gems/zoxide.md): MIT smarter cd — frecent directory jumper for every shell
- [Umami](/gems/umami.md): MIT cookieless analytics; Cloud Hobby is a real free tier
- [SurrealDB](/gems/surrealdb.md): BSL multi-model DB; free to use, not OSI open source
- [Kestra](/gems/kestra.md): Apache-2.0 YAML orchestration; EE/Cloud are sales-quoted
- [Atuin](/gems/atuin.md): MIT magical shell history with optional E2E sync
- [gatho](/gems/gatho.md): MIT self-host WebSocket rooms toolkit; no Cloud product
- [PushForge](/gems/pushforge.md): MIT edge-native Web Push builder; free playground
- [Tabby](/gems/tabby.md): Apache-2.0 self-hosted coding assistant; IDE plugins, your GPU
- [Podman](/gems/podman.md): Apache-2.0 daemonless OCI containers and pods
- [SOPS](/gems/sops.md): MPL-2.0 encrypts config values; keys stay readable
- [Semgrep](/gems/semgrep.md): LGPL-2.1 SAST engine; Free Edition caps repos/contributors
- [Tilt](/gems/tilt.md): Apache-2.0 microservice dev loop for Kubernetes
- [D2](/gems/d2.md): MPL-2.0 diagram-as-code; TALA bundled for auto-layout
- [Lightning CSS](/gems/lightning-css.md): MPL-2.0 CSS parser, transformer, and minifier in Rust
- [MarkItDown](/gems/markitdown.md): MIT office/PDF/media→Markdown converter for RAG pipelines
- [ripgrep](/gems/ripgrep.md): Unlicense/MIT recursive grep that respects .gitignore
- [bat](/gems/bat.md): MIT/Apache-2.0 cat clone with syntax highlighting and Git integration
- [HTTPie](/gems/httpie.md): BSD-3-Clause human-friendly HTTP client for the terminal
- [jq](/gems/jq.md): MIT command-line JSON processor — the ubiquitous pipe filter
- [Trystero](/gems/trystero.md): MIT serverless WebRTC rooms via Nostr/MQTT/BitTorrent/IPFS
- [Matchbox](/gems/matchbox.md): MIT/Apache-2.0 Rust/WASM P2P sockets for Bevy + GGRS
- [ctrlb-decompose](/gems/ctrlb-decompose.md): MIT Drain3-style log pattern collapse; logs stay local (Rust/WASM)
- [fd](/gems/fd.md): MIT/Apache-2.0 ignore-aware parallel filename find
- [gum](/gems/gum.md): MIT scriptable prompts, filters, and spinners for shell UX
- [glow](/gems/glow.md): MIT Markdown TUI pager from Charm
- [hyperfine](/gems/hyperfine.md): MIT/Apache-2.0 statistical CLI benchmarker
- [delta](/gems/delta.md): MIT syntax-aware git diff pager
- [Yazi](/gems/yazi.md): MIT async terminal file manager with image preview
- [eza](/gems/eza.md): EUPL-1.2 modern ls replacement in Rust (exa successor)
- [lazydocker](/gems/lazydocker.md): MIT terminal UI for Docker and Compose
- [dive](/gems/dive.md): MIT Docker/OCI image layer explorer
- [Hoppscotch](/gems/hoppscotch.md): MIT web-first open-source API client ecosystem
- [Typst](/gems/typst.md): Apache-2.0 markup typesetter — LaTeX power, faster feedback
- [marimo](/gems/marimo.md): Apache-2.0 reactive Python notebooks as git-friendly scripts
- [OAuth2 Proxy](/gems/oauth2-proxy.md): MIT CNCF Sandbox reverse-proxy auth gate vs external IdPs
- [Nakama](/gems/nakama.md): Apache-2.0 full game backend — auth, storage, matchmaking, chat
- [MQTT.js](/gems/mqtt-js.md): MIT Node + browser MQTT client — needs a broker
- [watchexec](/gems/watchexec.md): Apache-2.0 mature file→command watcher (entr-class)
- [btop](/gems/btop.md): Apache-2.0 local host resource TUI (CPU/mem/disk/net/GPU)
- [tokei](/gems/tokei.md): MIT/Apache-2.0 fast LOC and code stats by language
- [dust](/gems/dust.md): Apache-2.0 intuitive du tree — see what eats the disk
- [yq](/gems/yq.md): MIT portable YAML/JSON/XML/CSV/TOML processor (Go)
- [Miller](/gems/miller.md): BSD-2-Clause named-field CSV/TSV/JSON munging (mlr)
- [navi](/gems/navi.md): Apache-2.0 interactive cheatsheet runner for the shell
- [Jujutsu (jj)](/gems/jj.md): Apache-2.0 Git-compatible VCS with first-class conflicts
- [vLLM](/gems/vllm.md): Apache-2.0 high-throughput LLM inference and serving engine
- [Wrangler](/gems/wrangler.md): MIT/Apache CLI for Cloudflare Workers; Free plan is real
- [restic](/gems/restic.md): BSD-2-Clause encrypted, deduplicated backups to many backends
- [Oxlint](/gems/oxlint.md): MIT Rust JS/TS linter from Oxc; ESLint-class rules at CI speed
- [Colima](/gems/colima.md): MIT container runtimes on macOS/Linux without Docker Desktop
- [jless](/gems/jless.md): MIT interactive JSON pager — explore, do not filter
- [xh](/gems/xh.md): MIT HTTPie-compatible HTTP client as a Rust single binary
- [sd](/gems/sd.md): MIT intentional sed subset — search & displace
- [procs](/gems/procs.md): MIT modern ps — colors, tree, and JSON
- [dasel](/gems/dasel.md): MIT one selector across JSON/YAML/TOML/XML/CSV
- [ast-grep](/gems/ast-grep.md): MIT structural AST search and rewrite (sg)
- [jc](/gems/jc.md): MIT CLI stdout→JSON so jq pipes stop parsing text
- [gron](/gems/gron.md): MIT flatten JSON to greppable assignments
- [Rauthy](/gems/rauthy.md): Apache-2.0 Rust passkey-forward OIDC+OAuth2 IdP with PAM/NSS
- [coturn](/gems/coturn.md): BSD-3-Clause TURN/STUN NAT-traversal relay (not an SFU)
- [web-push](/gems/web-push.md): MPL-2.0 classic Node Web Push Protocol + VAPID library
- [VHS](/gems/vhs.md): MIT terminal GIFs as code — .tape scripts for CLI demos
- [doggo](/gems/doggo.md): GPL-3.0 human DNS client — DoH/DoT/DoQ/DNSCrypt + web UI
- [gitui](/gems/gitui.md): MIT blazing-fast Rust terminal git GUI (unsafe forbidden)
- [oha](/gems/oha.md): MIT HTTP load generator with realtime TUI (hey-inspired)
- [Syft](/gems/syft.md): Apache-2.0 SBOM CLI for images and filesystems (pairs with Grype)
- [git-cliff](/gems/git-cliff.md): Apache-2.0 changelog generator from Conventional Commits
- [Hurl](/gems/hurl.md): Apache-2.0 plain-text HTTP tests powered by curl
- [Difftastic](/gems/difftastic.md): MIT structural/AST diff that understands syntax
- [k6](/gems/k6.md): AGPL-3.0 scriptable load testing (JS) from Grafana
- [act](/gems/act.md): MIT run GitHub Actions locally in Docker
- [stern](/gems/stern.md): Apache-2.0 multi-pod Kubernetes log tail
- [OSV-Scanner](/gems/osv-scanner.md): Apache-2.0 OSV.dev vulnerability scanner for lockfiles and images
- [rclone](/gems/rclone.md): MIT rsync for cloud remotes — 70+ storage backends
- [fq](/gems/fq.md): MIT jq for binary formats — decode, query, REPL
- [Knip](/gems/knip.md): ISC unused files, deps, and exports finder for JS/TS
- [GoReleaser](/gems/goreleaser.md): MIT Go release automation — archives, checksums, Homebrew, Docker
- [Changesets](/gems/changesets.md): MIT versioning + changelog PRs for JS monorepos
- [UnoCSS](/gems/unocss.md): MIT instant on-demand atomic CSS engine
- [kind](/gems/kind.md): Apache-2.0 Kubernetes clusters inside Docker
- [htmx](/gems/htmx.md): 0BSD HTML-over-the-wire — AJAX/SSE/WS as attributes
- [ShellCheck](/gems/shellcheck.md): GPL-3.0 de-facto static analysis for shell scripts
- [Hadolint](/gems/hadolint.md): GPL-3.0 AST Dockerfile linter + ShellCheck on RUN
- [Overmind](/gems/overmind.md): MIT Procfile process manager via tmux
- [River](/gems/river.md): MPL-2.0 durable Postgres job queue for Go; Pro is paid add-ons
- [croc](/gems/croc.md): MIT secure peer file send — relay + PAKE
- [Ghostty](/gems/ghostty.md): MIT GPU-accelerated native terminal emulator
- [mirrord](/gems/mirrord.md): MIT local process as if it ran in-cluster; Teams/Operator paid
- [ko](/gems/ko.md): Apache-2.0 Go→OCI images without a Dockerfile
- [crane](/gems/crane.md): Apache-2.0 registry CLI — inspect, copy, mutate OCI images
- [Buildah](/gems/buildah.md): Apache-2.0 rootless OCI image builds without Docker
- [Skopeo](/gems/skopeo.md): Apache-2.0 copy/inspect OCI images without a daemon
- [Task](/gems/task.md): MIT Taskfile.yml runner — YAML alternative to Make/just
- [Valibot](/gems/valibot.md): MIT modular TypeScript schemas — tiny bundle vs Zod
- [Agno](/gems/agno.md): Apache-2.0 Python agent framework + AgentOS runtime (ex-Phidata)
- [AG2](/gems/ag2.md): Apache-2.0 open-source AgentOS; AutoGen community continuation
- [Open Interpreter](/gems/open-interpreter.md): Apache-2.0 terminal coding agent; Rust Codex fork for open models
- [VoltAgent](/gems/voltagent.md): MIT TypeScript agent framework + optional VoltOps console
- [Rivet](/gems/rivet.md): MIT visual AI agent graph IDE + TypeScript runtime (Ironclad)
- [mcp-remote](/gems/mcp-remote.md): MIT npx stdio↔remote MCP proxy with OAuth support
- [MCP Inspector](/gems/mcp-inspector.md): MIT official MCP server debugger — web, CLI, and TUI
- [Smithery](/gems/smithery.md): Freemium MCP registry, gateway, and hosting marketplace
- [Composio](/gems/composio.md): Freemium agent toolkits + managed OAuth across 1000+ apps
- [GitHub MCP Server](/gems/github-mcp.md): MIT official GitHub MCP — issues, PRs, code, workflows for agents
- [Antigravity CLI](/gems/antigravity-cli.md): Google terminal agent (agy) — Gemini CLI consumer successor
- [Daytona](/gems/daytona.md): Freemium agent sandboxes — stateful envs, SDK/API/CLI
- [Steel](/gems/steel.md): Apache-2.0 browser API for AI agents — self-host or cloud
- [mcp-agent](/gems/mcp-agent.md): Apache-2.0 MCP-as-runtime + durable Temporal workflows (LastMile)
- [mcp2cli](/gems/mcp2cli.md): MIT runtime MCP/OpenAPI/GraphQL→CLI — zero codegen
- [mcp-use](/gems/mcp-use.md): MIT fullstack TypeScript MCP — servers, apps, clients, agents
- [Google ADK](/gems/google-adk.md): Apache-2.0 code-first agent build/eval/deploy kit (Google)
- [DSPy](/gems/dspy.md): MIT program LMs with signatures and optimizers (Stanford NLP)
- [CAMEL](/gems/camel.md): Apache-2.0 multi-agent framework — scaling laws of agents
- [Genkit](/gems/genkit.md): Apache-2.0 Google/Firebase agentic-app flows — JS, Go, Python
- [BeeAI Framework](/gems/beeai-framework.md): Apache-2.0 production agents in Python and TypeScript — MCP + A2A
- [Microsoft Agent Framework](/gems/microsoft-agent-framework.md): MIT successor to AutoGen + Semantic Kernel — Python and .NET
- [Strands Agents](/gems/strands-agents.md): Apache-2.0 model-driven agent SDK from AWS — Python and TypeScript
- [OpenAI Agents SDK](/gems/openai-agents-sdk.md): MIT multi-agent workflows — tools, handoffs, tracing, MCP
- [CopilotKit](/gems/copilotkit.md): MIT agent-native UI layer — React copilots, AG-UI, MCP
- [Rowboat](/gems/rowboat.md): Apache-2.0 local-first AI coworker — knowledge graph + MCP
- [Griptape](/gems/griptape.md): Apache-2.0 Python agents, pipelines, RAG — MCP tools too
- [Pipecat](/gems/pipecat.md): BSD-2 voice and multimodal realtime agents (Daily)
- [Dify](/gems/dify.md): Open-source LLM app/agent studio + cloud freemium (LangGenius)
- [Spec Kit](/gems/spec-kit.md): MIT Spec-Driven Development toolkit — any AI coding agent (GitHub)
- [RTK](/gems/rtk.md): Apache-2.0 Rust CLI proxy — fewer agent shell tokens
- [Scrapling](/gems/scrapling.md): BSD-3 adaptive scrape/crawl framework + MCP
- [Agent Reach](/gems/agent-reach.md): MIT eyes for agents — public-web CLI, zero API fees
- [llmfit](/gems/llmfit.md): MIT CLI — which models fit your hardware
- [RustFS](/gems/rustfs.md): Apache-2.0 Rust S3-compatible object store
- [Google Workspace CLI](/gems/google-workspace-cli.md): Apache-2.0 first-party gws CLI — Drive, Gmail, Calendar, agent skills
- [agentsview](/gems/agentsview.md): MIT local-first agent session/cost archive — 20+ coding agents
- [mcporter](/gems/mcporter.md): MIT MCP as CLI + generate-cli / emit-ts (OpenClaw)
- [Engram](/gems/engram.md): MIT persistent agent memory — MCP, CLI, TUI, SQLite
- [Bifrost](/gems/bifrost.md): Apache-2.0 AI gateway — perf angle vs LiteLLM (Maxim)
- [Harper](/gems/harper.md): Apache-2.0 offline privacy grammar checker — Rust (Automattic)
- [Dozzle](/gems/dozzle.md): MIT realtime Docker/Swarm/K8s log UI
- [Open Code Review](/gems/open-code-review.md): Apache-2.0 hybrid deterministic+LLM review agent (MCP/plugins)
- [colibrì](/gems/colibri.md): Apache-2.0 pure-C zero-deps MoE streamed from disk
- [OpenResearch](/gems/openresearch.md): MIT coding agents → research agents (Rust)
- [Atlas (pacifio)](/gems/atlas-agents.md): MIT multi-agent change tracking — source control for agents
- [BrewUI](/gems/brewui.md): AGPL-3.0 official Homebrew macOS GUI
- [DeskcommCRM](/gems/deskcommcrm.md): MIT self-hosted AI sales OS/CRM — MCP-ready
- [LibreChat](/gems/librechat.md): MIT Agents/MCP chat UI — OpenAI-compatible, self-host
- [Crawl4AI](/gems/crawl4ai.md): Apache-2.0 LLM-friendly crawler — markdown for agents
- [Firecrawl](/gems/firecrawl.md): AGPL-3.0 OSS + cloud scrape API — LLM-ready pages
- [Effect](/gems/effect.md): MIT production TypeScript toolkit — typed errors & concurrency
- [OpenStatus](/gems/openstatus.md): AGPL-3.0 status/uptime as code — Terraform/CLI/MCP
- [PostgREST](/gems/postgrest.md): MIT instant REST API for any Postgres schema
- [Wasmtime](/gems/wasmtime.md): Apache-2.0 Bytecode Alliance WebAssembly runtime
- [Thurbox](/gems/thurbox.md): MIT tmux TUI/CLI for local AI agent orchestration
- [OpenSpec](/gems/openspec.md): MIT spec-driven change tooling for coding agents
- [Security Audit Skill](/gems/security-audit-skill.md): MIT coding-agent skill for multi-phase security audits
- [WeKnora](/gems/weknora.md): MIT self-host RAG/knowledge platform (Tencent)
- [ECC](/gems/ecc.md): MIT agent ecosystem / coordination surface
- [Knowledge Work Plugins](/gems/knowledge-work-plugins.md): Apache-2.0 knowledge-work plugins (Anthropic)
- [oh-my-hermes](/gems/oh-my-hermes.md): MIT Hermes-agent niche tooling — memory & workflows
- [Superpowers](/gems/superpowers.md): Composable agent skills that force brainstorm → plan → TDD → subagent review
- [Agent Skills (Addy Osmani)](/gems/agent-skills.md): Production lifecycle skills — /spec /plan /build /test /review /ship
- [nanobot](/gems/nanobot.md): Ultra-light self-hosted personal AI agent with WebUI, MCP, and memory
- [OpenBot](/gems/openbot.md): Self-hosted AI coworkers with per-bot computers and action governance
- [HyperFrames](/gems/hyperframes.md): HTML + CSS + seekable animation → deterministic MP4, built for agents
- [Voicebox](/gems/voicebox.md): Local-first OSS voice studio — clone, TTS, dictate, MCP voice for agents
- [Supervision](/gems/supervision.md): Model-agnostic computer-vision toolkit for detections, zones, and video
- [Tinycast](/gems/tinycast.md): Native macOS launcher — hotkeys, clipboard, Raycast extensions, under 100 MB RAM
- [BrowserSkill](/gems/browserskill.md): Attach coding agents to a real logged-in browser without interrupting the session
- [Bend](/gems/bend.md): Parallel language + proof-gated agent coding
- [Octop](/gems/octop.md): MIT self-hosted multi-user multi-agent platform
- [Hister](/gems/hister.md): Private local search over visited pages and files
- [Coder](/gems/coder.md): Durable remote workspaces for humans and coding agents
- [Flet](/gems/flet.md): Apache-2.0 cross-platform GUI from Python
- [Pizza Bot](/gems/pizza-bot.md): Local-first inbox for long-running AI agent work
- [AgentBox](/gems/agentbox.md): Teleport a repo into parallel sandboxed agent VMs
- [MCPJam](/gems/mcpjam.md): OSS MCP testing, debugging, and evals platform
- [OJ](/gems/oj.md): Rust-native React build tool aimed at agents and CI
- [Friday](/gems/friday.md): Self-hosted cognitive memory MCP for coding agents
- [Unmute](/gems/unmute.md): One voice-agent spec compiled to LiveKit, Pipecat, or SLNG
- [aclif](/gems/aclif.md): Agent CLI framework — one grammar across SaaS providers
- [Hishel](/gems/hishel.md): BSD-3 elegant HTTP caching for Python
- [SemIf](/gems/semif.md): MIT local/WebGPU semantic conditionals — OpenJev, the former pitch name
- [Scry](/gems/scry.md): Hosted freemium MCP + SQL over public-record corpora
- [AX Check](/gems/ax-check.md): Hosted free agent-experience checklist + recorded coding-agent sessions
- [Supermemory](/gems/supermemory.md): MIT memory/context engine with a local API
- [GitDiagram](/gems/gitdiagram.md): MIT interactive architecture diagrams for any GitHub repo
- [TradingView MCP](/gems/tradingview-mcp.md): Local CDP bridge: Claude/agents on your TradingView Desktop charts
- [OneCLI](/gems/onecli.md): Apache-2.0 team agent harness — sandboxed personal agents + credential gateway
- [typesafe-computer-use](/gems/typesafe-computer-use.md): MIT macOS computer-use loop — OCR + TypeSafe Jev decisions, ~$0.0002/step
- [SLayer](/gems/slayer.md): MIT embeddable semantic layer for agents — MCP, SQL expressions, dbt/Cube import
- [PageIndex MCP](/gems/pageindex-mcp.md): Vectorless tree-index RAG over long PDFs — freemium MCP for agents
- [gawkbot](/gems/gawkbot.md): Source-available always-on bots that build microapps — local Grok Bot alternative
- [Dexto](/gems/dexto.md): Elastic-2.0 agent harness OS — state, tools, recovery, ships a coding agent
- [Cua](/gems/cua.md): Open computer-use drivers, sandboxes, MCP, and CUA-S1 decision models
- [Orca](/gems/orca.md): Parallel coding-agent ADE with worktrees, mobile control, and design mode
- [Context Mode](/gems/context-mode.md): Elastic-2.0 MCP sandbox for tool output and session continuity
- [T3 Code](/gems/t3-code.md): Remote control surface for already-authenticated agent CLIs
- [OpenViking](/gems/openviking.md): AGPL self-evolving context database for memory, RAG, and skills
- [Archify](/gems/archify.md): MIT agent skill that renders architecture and workflow diagrams as self-contained HTML
- [Flue](/gems/flue.md): Astro TypeScript harness for autonomous sandbox agents
- [json-render](/gems/json-render.md): Vercel Labs generative UI framework with safe predefined components
- [Caveman](/gems/caveman.md): Viral skill and proxy that forces coding agents to spend fewer tokens
- [Agent Substrate](/gems/substrate.md): High-density secure sandbox runtime for idle-heavy agent workloads
- [Stitch Skills](/gems/stitch-skills.md): Google Labs agent skills and plugins for the Stitch design MCP
- [Weave Router](/gems/weave-router.md): ELv2 on-box embedder proxy that routes each prompt to the right model
- [AURA](/gems/aura.md): Apache-2.0 MCP-ready SRE agent platform for production incidents
- [Docling](/gems/docling.md): MIT local document parser that feeds PDFs and Office files into gen-AI pipelines
- [AX (Agent Executor)](/gems/ax-agent-executor.md): Apache-2.0 Go CLI and Kubernetes CRDs for running agent tasks
- [Agent Native](/gems/agent-native.md): Define an action once and expose it to agents and every UI surface
- [OKF Agent Memory](/gems/okf-agent-memory.md): Git-native dual-memory for agents — OKF v0.2 + embedded MCP
- [Skillbox](/gems/skillbox.md): Self-hosted versioned skills library with MCP and scoped clients
- [Humanizer](/gems/humanizer.md): Agent skill that rewrites AI-sounding prose without changing the meaning
- [PaperGraph MCP](/gems/papergraph-mcp.md): Evidence-first math-paper reading maps for AI agents
- [Design Studio AI](/gems/design-studio-ai.md): Agent-first design workspace with MCP, CLI, and shared human edits
- [Jev Review](/gems/jev-review.md): Local MCP that scores coding-agent diffs with TypeSafe Jev
- [Cilium](/gems/cilium.md): eBPF networking, security, and observability for Kubernetes
- [Paperless-ngx](/gems/paperless-ngx.md): GPL-3 document management — scan, OCR, tag, and full-text search
- [Foremerge](/gems/foremerge.md): Deterministic intent and scope conflict resolution for parallel agents
- [ai-memory](/gems/ai-memory.md): Zero-LLM git-backed Markdown memory wiki with SQLite FTS
- [Prime Agent](/gems/prime-agent.md): Persistent REPL agent with recursive LMs
- [GenericAgent](/gems/generic-agent.md): Tiny self-evolving agent seed with full system and Android control
- [Codex-X](/gems/codex-x.md): Codex-specific desktop and CLI workspace for visual configuration and MCP skills
- [Pi](/gems/pi.md): MIT agent harness with coding CLI, unified LLM API, and TUI
- [OpenHuman](/gems/openhuman.md): GPL-3 local-first agent orchestrator with memory trees and MCP
- [book-to-skill](/gems/book-to-skill.md): MIT converter from books/docs into cross-agent SKILL.md packs
- [Claude Code Templates](/gems/claude-code-templates.md): MIT npx catalog of Claude Code agents, hooks, settings, and MCPs
- [Destructive Command Guard](/gems/destructive-command-guard.md): MIT-with-rider hook that blocks destructive agent shell and git commands
- [Cloudflare MCP Servers](/gems/cloudflare-mcp.md): Apache-2.0 official domain-specific Cloudflare MCP server suite
- [Kev](/gems/kev.md): Apache-2.0 tiny Jev-like decision models you train and serve locally
- [video-use](/gems/video-use.md): Video-editing skill stack for coding agents
- [Univer](/gems/univer.md): Embeddable Office runtime where agents and humans share documents
- [AI-Infra-Guard](/gems/ai-infra-guard.md): Red-team platform for agent, MCP, and skill infrastructure
- [treg](/gems/treg.md): Metered tool catalog and team vault for agent integrations
- [LitterBox](/gems/litterbox.md): Malware and payload detection sandbox with LitterBoxMCP
- [Jev Ultrafast](/gems/jev-ultrafast.md): Browser Use × TypeSafe Jev — indexed action-space web agent
- [Unreal Agent](/gems/unreal-agent.md): Async-first agent harness with durable sessions and operations
- [OpenMuse](/gems/openmuse.md): MIT personal agent app — browser, terminal, files, lasting work
- [Jev MCP](/gems/jev-mcp.md): Ten TypeSafe Jev judgment tools over local stdio MCP
- [ZCode](/gems/zcode.md): Apache coding workspace — desktop, web, and zcode Agent CLI
- [Agentao](/gems/agentao.md): MIT governed Python agent runtime — permissions, MCP, memory, replay
- [Equibles](/gems/equibles.md): Self-hosted financial-data MCP — SEC, 13F, FRED, prices for agents
- [AgentVerse OS](/gems/agentverse-os.md): Apache personal cloud OS for you + coding agents on one Ubuntu box
- [Codebase Memory MCP](/gems/codebase-memory-mcp.md): MIT persistent code knowledge graph MCP — static binary, no LLM key
- [Impeccable](/gems/impeccable.md): Apache design language/skills that make AI harnesses better at UI
- [CLI-Anything](/gems/cli-anything.md): Apache hub that makes arbitrary software agent-native via CLI surfaces
- [DeerFlow](/gems/deerflow.md): MIT long-horizon SuperAgent harness — sandboxes, memory, skills, gateway
- [CubeSandbox](/gems/cubesandbox.md): Apache concurrent lightweight agent sandbox — RustVMM/KVM, E2B-compatible
- [DeepSeek Harness](/gems/deepseek-harness.md): MIT everything-is-a-plugin agent harness (dsh) — Cordis, Web UI
- [ARTEMIS](/gems/artemis.md): Apache Android NL automation + MCP for IDE coding agents
- [antislop](/gems/anti-slop.md): MIT skill/rules that filter generic AI UI and copy — not a style guide
- [unlazy](/gems/unlazy.md): MIT anti-laziness Depth Tree skill — gates, evidence, reverify
- [Rakazo](/gems/rakazo.md): Apache OSS persistent AI teammates — BYO model and sandbox
- [HarnessRouter CE](/gems/harnessrouter.md): Apache self-hosted unified API over Codex, Claude Code, DSH, and peers
- [Moli](/gems/moli.md): Apache/MIT Rust headless browser for AI agents — structure first
- [CC Switch](/gems/cc-switch.md): MIT desktop All-in-One manager for Claude Code, Codex, OpenCode, and peers
- [Hindsight](/gems/hindsight.md): MIT retain→recall→reflect agent memory (+ MCP)
- [AIO Sandbox](/gems/aio-sandbox.md): Apache one container: browser+shell+files+VS Code+Jupyter+MCP
- [ContextForge](/gems/contextforge.md): Apache MCP+A2A+REST/gRPC→MCP gateway with governance + OTel
- [MCP Registry](/gems/mcp-registry.md): Canonical protocol-org community MCP server registry
- [Agent-MCP](/gems/agent-mcp.md): AGPL MCP-native multi-agent + shared knowledge graph
- [Workflow Use](/gems/workflow-use.md): AGPL RPA 2.0 — record/run durable browser workflows
- [Whiteboard](/gems/whiteboard.md): MIT desktop canvas where humans + coding agents share specs
- [BrowserOS](/gems/browseros.md): AGPL agentic browser — open alternative to Atlas/Comet/Dia
- [SkillSpector](/gems/skillspector.md): Apache NVIDIA scanner for agent skills before you install them
- [CLI Proxy API](/gems/cli-proxy-api.md): MIT local OpenAI/Claude/Gemini-compatible API in front of coding CLIs
- [Multica](/gems/multica.md): Source-available board where coding agents pick up human issues
- [OpenAI Tunnel Client](/gems/openai-tunnel.md): Apache customer daemon for Secure MCP Tunnel to ChatGPT/Codex
- [emcee](/gems/emcee.md): MIT turn any OpenAPI into an MCP server for Claude and friends
- [Klavis](/gems/klavis.md): Apache MCP integrations + Strata multi-tool server (hosted or self-host)
- [Paperclip](/gems/paperclip.md): MIT org control-plane for agent budgets, Board governance, heartbeats
- [Invisible Playwright MCP](/gems/invisible-playwright-mcp.md): MIT stealth Firefox Playwright MCP — not plain Chromium MCP
- [Ruflo](/gems/ruflo.md): MIT meta-harness / execution swarm on coding CLIs (ex Claude Flow)
- [UI-TARS Desktop](/gems/ui-tars-desktop.md): Apache-2.0 vision/GUI-agent desktop stack (Agent TARS)
- [git-bug](/gems/git-bug.md): GPL-3.0+ offline-first bugs stored inside the git repo
- [StarNet](/gems/starnet.md): MIT local-first pixel-art desktop station for real agent crews
- [tRPC-Agent-Go](/gems/trpc-agent-go.md): Apache-2.0 Go production agent framework — GraphAgent, MCP, A2A
- [Dapr Agents](/gems/dapr-agents.md): Apache-2.0 CNCF Dapr durable agent workflows on Kubernetes
- [FrontMCP](/gems/frontmcp.md): Apache-2.0 TypeScript-first MCP server framework (decorators, DI, OAuth)
- [NVIDIA Model Optimizer](/gems/model-optimizer.md): Apache-2.0 quantization/pruning/NAS/distill for HF → TensorRT-LLM/vLLM
- [Desktop Commander MCP](/gems/desktop-commander-mcp.md): MIT MCP for terminal, files, and processes on your desktop host
- [gutcheck](/gems/gutcheck.md): MIT semantic grep — filter lines with a local CPU model
- [Floci](/gems/floci.md): MIT free local AWS cloud API emulator (:4566 LocalStack-shaped)
- [Buzz](/gems/buzz.md): Apache-2.0 self-host Nostr event-log workspace for humans+agents
- [Mobile MCP](/gems/mobile-mcp.md): Apache-2.0 native iOS+Android a11y-tree MCP (sim/emu/real)
- [MetaMCP](/gems/metamcp.md): MIT self-host MCP aggregator + middleware + inspector (one endpoint)
- [fx](/gems/fx.md): Apache-2.0 tiny Zig Unix-like coding agent CLI (Vercel Labs)
- [Reef](/gems/reef.md): Apache-2.0 infra for continually self-improving agents
- [Cumora](/gems/cumora.md): MIT team chat where AI agents are first-class teammates
- [Qwen Code](/gems/qwen-code.md): Apache-2.0 multi-surface coding agent (Qwen lineage)
- [Code-Graph-RAG](/gems/code-graph-rag.md): MIT Tree-sitter→Memgraph structural RAG for monorepos
- [Oh My Pi](/gems/oh-my-pi.md): MIT Stencil Labs Pi fork with IDE wired in (LSP/DAP)
- [FrontierAgent](/gems/frontier-agent.md): Apache-2.0 agent runtime + TUI with Agent Team board
- [WebCodex](/gems/webcodex.md): Apache-2.0 bridge cloud AI agents to your local machine
- [scriptc](/gems/scriptc.md): Apache-2.0 AOT TypeScript/JS → native (IR/C/LLVM/Wasm)
- [Coding Tools MCP](/gems/coding-tools-mcp.md): Apache-2.0 model-neutral 18-tool coding runtime over MCP
- [OpenRig](/gems/openrig.md): Apache-2.0 multi-harness agent team — Claude Code + Codex in one YAML rig
- [Data Formulator](/gems/data-formulator.md): MIT AI-powered data exploration and visualization (Microsoft)
- [Claude for Financial Services](/gems/financial-services.md): Apache-2.0 finance reference agents/skills (Anthropic)
- [Navop](/gems/navop.md): Native ops workspace (Apache-2.0 + Navop License rider) — DB, SSH, RDP, terminals, AI agents
- [Submarine](/gems/submarine.md): MIT Rust/Tauri SSH & SFTP client — desktop + Android
- [Matt Pocock Skills](/gems/mattpocock-skills.md): MIT composable SKILL.md pack for real engineering — not vibe coding
- [Ponytail](/gems/ponytail.md): MIT “laziest senior” skill — measured LOC/token/cost cuts, not vibes
- [Gemini Notebook MCP CLI](/gems/gemini-notebook-mcp-cli.md): MIT CLI+MCP for Gemini Notebook (NotebookLM) — uv/PyPI free path
- [Ragas](/gems/ragas.md): Apache-2.0 RAG/agent eval metrics — synthetic data + CI scorers
- [BAML](/gems/baml.md): Apache-2.0 typed DSL for LLM functions — schema-guaranteed outputs
- [Arize Phoenix](/gems/arize-phoenix.md): ELv2 self-host AI observability & eval — traces, datasets, playground
- [Open WebUI](/gems/open-webui.md): Source-available Ollama/OpenAI chat UI — RAG, tools, multi-user
- [Claude Agent SDK](/gems/claude-agent-sdk.md): MIT first-party Anthropic SDK — Claude Code agent loop in your app
- [Amp](/gems/amp.md): Sourcegraph coding agent — free with BYOK, orbs for long-running work
- [LangSmith](/gems/langsmith.md): LangChain freemium obs/eval/deploy — free Developer 5k traces/mo
- [OpenShell](/gems/openshell.md): Apache-2.0 agents/sandbox policy runtime — deny-by-default kernel governance
- [SkillOpt](/gems/skillopt.md): MIT skills optimizer — trains skill.md as params for frozen agents
- [DBX](/gems/dbx.md): Apache-2.0 agent-facing multi-engine DB client — MCP + CLI + Docker
- [Topcoat](/gems/topcoat.md): MIT full-stack Rust web framework from the Tokio team
- [Magnitude](/gems/magnitude.md): Apache-2.0 local inference desktop+CLI — consumer profiler for agents
- [Cognee](/gems/cognee.md): Apache-2.0 AI memory platform — local knowledge graph for agents
- [Herdr](/gems/herdr.md): Apache-2.0 terminal runtime for multi-agent herds — state, panes, socket API
- [LiteParse](/gems/liteparse.md): Apache-2.0 local PDF/doc parser — PDFium + OCR, no cloud required
- [agent-desktop](/gems/agent-desktop.md): Apache-2.0 desktop computer-use CLI — OS a11y refs, not pixels
- [Zeron](/gems/zeron.md): MIT local control plane for coding agents — optional multi-device sync
- [Nasiko](/gems/nasiko.md): Apache-2.0 developer control plane — discover, route, and trace agent harnesses
- [Open-Science (AIPOCH)](/gems/open-science.md): Apache-2.0 agents research workbench — brew cask / download free
- [iFixAi](/gems/ifixai.md): Apache-2.0 agents eval/audit — pip install, premium ≠ paywall
- [Agent Toolkit for AWS](/gems/agent-toolkit-for-aws.md): Apache-2.0 Agents/MCP toolkit — plugins, skills, AWS CLI MCP proxy
- [Monty (Pydantic)](/gems/monty.md): MIT in-process Rust Python sandbox — OSS Monty only
- [BMAD Method](/gems/bmad-method.md): MIT agent skills method — npm bmad-method, not proprietary
- [GitMCP](/gems/gitmcp.md): Apache remote MCP — any GitHub repo as live docs for agents
- [Framelink Figma MCP](/gems/figma-context-mcp.md): MIT Figma-layout MCP for coding agents — npm figma-developer-mcp
- [Mobile Build MCP](/gems/mobile-build-mcp.md): MIT Sentry MCP+CLI for iOS/macOS agent builds — npm mobilebuildmcp
- [Skills (Vercel Labs)](/gems/vercel-skills.md): MIT open agent-skills CLI — npx skills, skills.sh ecosystem
- [Claude Code Router](/gems/claude-code-router.md): MIT local control plane — route coding agents across models
- [Headroom](/gems/headroom.md): Apache context-compression layer — shrink tool dumps before the model
- [Langflow](/gems/langflow.md): MIT visual agent/workflow builder — every flow as API + MCP tool
- [oh-my-claudecode](/gems/oh-my-claudecode.md): MIT teams multi-agent orchestration for Claude Code — npm oh-my-claude-sisyphus
- [Agentgateway](/gems/agentgateway.md): Apache AI-native proxy — MCP & A2A security, obs, governance
- [MCP Scanner (Cisco)](/gems/mcp-scanner.md): Apache MCP security scanner — YARA, LLM, Cisco AI Defense
- [Observal](/gems/observal.md): Apache self-host registry for coding-agent extensions + insight
- [Reverify](/gems/reverify.md): MIT claim-verify loop for agents — MCP + deterministic tools
- [HOL Guard](/gems/hol-guard.md): Apache local antivirus for agents — MCP, skills, shell, packages
- [Apify MCP Server](/gems/apify-mcp.md): MIT Apify Store MCP — agents scrape via thousands of Actors
- [kagent](/gems/kagent.md): Apache Kubernetes-native framework for building AI agents
- [OpenDesign](/gems/open-design.md): Apache collaborative design-agent workspace — Claude Design alt
- [DwarfStar 4](/gems/ds4.md): MIT in-process coding agent — project quants only, shared KV cache
- [OpenSRE](/gems/opensre.md): Apache-2.0 self-host SRE agent — Ollama path, hosted quickstart is not free
- [Claude Code Action](/gems/claude-code-action.md): MIT GitHub Action — Claude Code on your runner, model calls still bill
- [InsForge](/gems/insforge.md): Apache agent-native backend with MCP self-host
- [TileLang](/gems/tilelang.md): MIT Pythonic DSL for GPU/CPU/NPU kernels on TVM
- [OpenKnowledge](/gems/open-knowledge.md): GPL-3.0 local markdown IDE + LLM wiki — MCP/skills for agent editing
- [geo-score](/gems/geo-score.md): MIT free AIV readiness score + MCP — cite-ability without a paywall
- [mcp-audit-tool](/gems/mcp-audit-tool.md): MIT static audit of MCP client configs — poisoning, rugs, secrets
- [growth.engineer](/gems/growth-engineer.md): MIT agent-readable GTM catalog — tools, functions, workflows via MCP
- [awwwards-mcp](/gems/awwwards-mcp.md): MIT design-inspiration MCP — Awwwards search, DNA, screenshots
- [Qanat](/gems/qanat.md): MIT MCP for quant factor processing and backtesting
- [OpenChatX](/gems/openchatx.md): MIT local ChatGPT agent runtime — tools, MCP aggregate, skills
- [text-to-cad](/gems/text-to-cad.md): MIT agent CAD plugin — STEP/STL/3MF, DFM checks, drawings via local MCP
- [PageIndex](/gems/pageindex.md): MIT self-hosted vectorless tree-RAG core — local mode with your own LLM key
- [Cloudflare OS](/gems/cloudflare-os.md): Apache-2.0 AI productivity OS reference design — local trial via pnpm run-local
- [gstack](/gems/gstack.md): MIT Garry Tan’s Claude Code role stack — plan, review, QA, ship
- [MCP for Blender](/gems/mcp-for-blender.md): MIT Blender MCP — prompt-driven 3D scenes from any agent client
- [GitHub Agentic Workflows](/gems/gh-aw.md): MIT gh extension — Markdown agent jobs compiled to Actions with safe outputs
- [vLLM Semantic Router](/gems/vllm-semantic-router.md): Apache-2.0 Mixture-of-Models router — pick or compose the model path per request
- [llama-swap](/gems/llama-swap.md): MIT one-binary proxy that hot-swaps local models on demand
- [e2e (TesterArmy)](/gems/testerarmy-e2e.md): Apache-2.0 agent-driven e2e tests for web and mobile — replays without model calls
- [gVisor](/gems/gvisor.md): Apache-2.0 userspace container sandbox — OCI runtime runsc for agent isolation
- [build123d](/gems/build123d.md): Apache-2.0 Python CAD-as-code on Open Cascade — the library under text-to-cad
- [Radar](/gems/radar.md): Apache-2.0 Kubernetes web UI — topology, Helm, GitOps, audit, built-in MCP
- [Beszel](/gems/beszel.md): MIT lightweight server + Docker monitoring — PocketBase hub, tiny agents, alerts
- [NVIDIA Dynamo](/gems/nvidia-dynamo.md): Apache-2.0 datacenter-scale LLM inference orchestration above vLLM, SGLang and TensorRT-LLM
- [FileBrowser Quantum](/gems/filebrowser-quantum.md): Apache-2.0 self-hosted web file manager — the maintained fork now that File Browser is archived
- [Plannotator](/gems/plannotator.md): MIT/Apache local browser review for agent plans, docs and diffs — feedback goes straight back to the agent
- [Omnigent](/gems/omnigent.md): Apache-2.0 meta-harness over Claude Code, Codex, Cursor, Pi and custom agents — sessions on any device, policies, sandboxes
- [Diagram Design](/gems/diagram-design.md): MIT agent skill for editorial HTML/SVG diagrams — 40+ layout types, brand-matched, no server
- [mold](/gems/mold.md): MIT drop-in Unix linker by the lld author — multi-x faster links for Rust, C and C++ debug builds
- [Kubescape](/gems/kubescape.md): Apache-2.0 CNCF Kubernetes security — manifest and cluster scans, image CVEs, auto-fix, admission policies, MCP server
- [Rapid-MLX](/gems/rapid-mlx.md): Apache-2.0 local LLM server for Apple Silicon — OpenAI + Anthropic APIs, tool-call parsing tuned for coding agents
- [Docker Agent](/gems/docker-agent.md): Apache-2.0 YAML-defined agents with MCP toolsets — runs as `docker agent`
- [Agent Sandbox](/gems/agent-sandbox.md): Apache-2.0 Kubernetes Sandbox CRD + controller — warm pools for agent runtimes
- [DuckLake](/gems/ducklake.md): MIT lakehouse table format on SQL + Parquet — a DuckDB extension
- [eve](/gems/eve.md): Apache-2.0 filesystem-first framework for durable AI agents — from Vercel
- [cmux](/gems/cmux.md): Native macOS terminal for parallel coding agents
- [REA](/gems/rea.md): MIT MCP server for agent-driven reverse engineering — binaries, Electron apps, .NET, websites
- [@shadcn/lint](/gems/shadcn-lint.md): MIT agent-first linter for Tailwind v4 design systems — ESLint or Oxlint
- [Shaders](/gems/shaders.md): MIT WebGPU effects as components — React, Vue, Svelte, Solid, plain JS
- [zerobrew](/gems/zerobrew.md): MIT/Apache-2.0 Rust client for Homebrew packages — uv-style store, much faster installs
- [Windows-MCP](/gems/windows-mcp.md): MIT MCP server that lets an agent drive the Windows desktop — apps, UI, input, shell
- [MXC](/gems/mxc.md): MIT Microsoft SDK for isolating untrusted agent code — Rust, .NET, Node
- [ToolHive](/gems/toolhive.md): Apache-2.0 MCP server runner + gateway — each server in its own container
- [Burn](/gems/burn.md): MIT/Apache-2.0 Rust deep-learning framework — train and run on many backends
- [Kyverno](/gems/kyverno.md): Apache-2.0 CNCF Kubernetes policy engine — policies as YAML, not Rego
- [Codex Security](/gems/codex-security.md): OpenAI vulnerability finder and patcher
- [Dyad](/gems/dyad.md): Local, open-source AI app builder — a v0/Lovable/Bolt alternative on your own machine
- [Video.js](/gems/video-js.md): Apache-2.0 media player framework for HTML and React — v10 is a modular rewrite
- [Grafana MCP server](/gems/mcp-grafana.md): Apache-2.0 MCP server from Grafana Labs for dashboards, datasources, alerts and incidents
- [Crawlee](/gems/crawlee.md): Apache-2.0 Node.js crawling and scraping library from Apify, HTTP or headless browser
- [TruffleHog](/gems/trufflehog.md): AGPL-3.0 secret scanner that finds leaked credentials and checks whether they still work
- [Nanobrowser](/gems/nanobrowser.md): Apache-2.0 Chrome extension that runs a multi-agent web automation loop with your own LLM keys
- [tuios](/gems/tuios.md): MIT terminal window manager that shows which of your coding agents is working, waiting or done
- [Handy](/gems/handy.md): MIT offline push-to-talk dictation for any text field — Whisper or Parakeet, nothing leaves your machine
- [Gitea](/gems/gitea.md): MIT self-hosted Git forge in a single Go binary — repos, PRs, issues, packages, Actions-compatible CI
- [Higress](/gems/higress.md): Apache-2.0 AI and API gateway on Envoy and Istio, with Wasm plugins, model proxying and MCP hosting
- [Bubble Tea](/gems/bubbletea.md): MIT Go framework for terminal UIs, built on The Elm Architecture — the engine under a lot of modern CLIs
- [egui](/gems/egui.md): MIT/Apache-2.0 immediate-mode GUI for Rust that runs the same code natively and on the web
- [PPT Master](/gems/ppt-master.md): MIT agent skill that turns documents into natively editable PowerPoint decks — real shapes, charts and slide masters
- [Skills Manager](/gems/skills-manager.md): MIT desktop app that keeps one agent-skills library and syncs it into Claude Code, Codex, Cursor and dozens more
- [RAD Debugger](/gems/raddebugger.md): MIT native graphical debugger for Windows x64 from Epic Games, plus a fast MSVC-compatible linker
- [HAMi](/gems/hami.md): Apache-2.0 CNCF project that shares and slices GPUs and other accelerators across Kubernetes workloads
- [celld](/gems/celld.md): Apache-2.0 self-hosted, distributed Durable Objects runtime from Deno, with Workers, KV and Queues
- [Hermes Agent](/gems/hermes-agent.md): MIT self-improving agent from Nous Research — skills from experience, multi-channel gateway, any model
- [TrueForge](/gems/trueforge.md): MIT open-source agent harness — MCP, skills, subagents, approvals, local SQLite or hosted Postgres
- [Agent Client Protocol](/gems/agent-client-protocol.md): Apache-2.0 LSP-for-agents: one protocol so any editor can talk to any coding agent
- [Codync](/gems/codync.md): Apache-2.0 bots for Claude Code, Codex, Cursor and 40+ ACP agents — message them from phone or desktop
- [Kandev](/gems/kandev.md): AGPL-3.0 multi-agent kanban with git worktrees — orchestrate, review diffs, open PRs
- [MCP Toolbox for Databases](/gems/mcp-toolbox.md): Apache-2.0 Google MCP server for databases
- [AWS MCP Servers](/gems/aws-mcp.md): Apache-2.0 AWS Labs MCP servers for AWS services
- [Microsoft MCP](/gems/microsoft-mcp.md): MIT official Microsoft MCP servers, led by Azure
- [Firecrawl MCP Server](/gems/firecrawl-mcp.md): MIT official MCP server for Firecrawl scraping
- [Supabase MCP Server](/gems/supabase-mcp.md): Apache-2.0 official MCP server for Supabase
- [MongoDB MCP Server](/gems/mongodb-mcp.md): Apache-2.0 official MCP server for MongoDB
- [Stripe AI](/gems/stripe-agent-toolkit.md): MIT official Stripe toolkit and MCP server for agents
- [Exa MCP Server](/gems/exa-mcp.md): MIT official MCP server for Exa web search
- [preloop](/gems/preloop.md): MIT self-hosted GitHub Actions with microVM-isolated jobs
- [Uniterm](/gems/uniterm.md): Apache-2.0 terminal for 30+ protocols with an AI agent
- [Docker Compose](/gems/docker-compose.md): Apache-2.0 multi-container apps from one YAML file
- [llama.cpp](/gems/llama-cpp.md): MIT local LLM inference in C/C++ on almost any hardware
- [SGLang](/gems/sglang.md): Apache-2.0 high-throughput LLM and multimodal serving
- [llm-d](/gems/llm-d.md): Apache-2.0 Kubernetes stack for distributed LLM inference
- [uzu](/gems/uzu.md): MIT on-device inference engine for Apple Silicon apps
- [Obsidian Mind](/gems/obsidian-mind.md): MIT Obsidian vault as persistent agent memory
- [EdgeQuake](/gems/edgequake.md): Apache-2.0 GraphRAG engine in Rust, runs on local models
- [KEDA](/gems/keda.md): Apache-2.0 CNCF event-driven autoscaling for Kubernetes
- [Chrome MCP Server](/gems/mcp-chrome.md): MIT Chrome extension MCP server for your own browser
- [M3E Canvas](/gems/m3e-canvas.md): MIT Material 3 sketches turned into vibe-coding prompts
- [AgentMesh](/gems/agentmesh.md): Apache-2.0 private network for AI agents, from Google
- [chi](/gems/chi.md): MIT minimal Go HTTP router built on net/http
- [OpenTelemetry Collector Contrib](/gems/opentelemetry-collector-contrib.md): Apache-2.0 extra OTel components
- [xtool](/gems/xtool.md): MIT cross-platform Xcode replacement for SwiftPM iOS apps
- [Jaeger](/gems/jaeger.md): Apache-2.0 CNCF distributed tracing, OTLP-native
- [Ghidra](/gems/ghidra.md): Apache-2.0 NSA reverse-engineering suite with decompiler
- [TokenSpeed](/gems/tokenspeed.md): MIT LLM inference engine built for agent workloads
- [Tailscale](/gems/tailscale.md): BSD-3-Clause WireGuard mesh VPN client
- [containerd](/gems/containerd.md): Apache-2.0 CNCF container runtime under Kubernetes
- [Beads](/gems/beads.md): MIT issue-tracker memory for coding agents, on Dolt
- [Fabric](/gems/fabric.md): MIT CLI that runs a library of reusable prompt patterns
- [Kitten TTS](/gems/kittentts.md): Apache-2.0 Python TTS library that runs on a CPU
- [Phone Harness](/gems/phone-harness.md): MIT CLI that lets coding agents drive a real phone
- [Hex-Rays IDA MCP](/gems/ida-mcp.md): Official MIT MCP server for the IDA disassembler
- [Scion](/gems/scion.md): Apache-2.0 platform for running coding agents as teams
- [Gotenberg](/gems/gotenberg.md): MIT Docker API that turns HTML and Office files into PDFs
- [go-zero](/gems/go-zero.md): MIT Go web and RPC framework with goctl code generation
- [node_exporter](/gems/node-exporter.md): Apache-2.0 official Prometheus host-metrics exporter
- [Cloud Hypervisor](/gems/cloud-hypervisor.md): Rust virtual machine monitor for KVM and MSHV
- [Apache Maka](/gems/maka.md): Apache-2.0 local-first agent workspace that logs every step
- [iroh](/gems/iroh.md): Rust library that connects devices by public key over QUIC
- [esbuild](/gems/esbuild.md): MIT Go bundler and minifier for JavaScript, TypeScript and CSS
- [Native SDK](/gems/native-sdk.md): Vercel Labs toolkit that compiles TypeScript desktop apps to native binaries
- [ODiff](/gems/odiff.md): MIT SIMD image diff for screenshot and visual-regression tests
- [etcd](/gems/etcd.md): Apache-2.0 Raft key-value store underneath Kubernetes
- [Owncast](/gems/owncast.md): MIT self-hosted live streaming and chat server
- [Foundry](/gems/foundry.md): MIT/Apache-2.0 EVM toolkit: forge, cast, anvil, chisel
- [Expo](/gems/expo.md): MIT platform for React Native apps on iOS, Android and web
- [pgvector](/gems/pgvector.md): Open-source vector similarity search inside Postgres
- [PGlite](/gems/pglite.md): Apache-2.0 Postgres compiled to WASM for browser, Node, Bun and Deno
- [Garnet](/gems/garnet.md): MIT Redis-protocol cache-store from Microsoft Research
- [Nginx UI](/gems/nginx-ui.md): AGPL-3.0 web UI for managing Nginx configs, certs and logs
- [Opik](/gems/opik.md): Apache-2.0 LLM and agent tracing, evaluation and monitoring by Comet
- [Unsloth](/gems/unsloth.md): Apache-2.0 core for fast local LLM fine-tuning, plus an AGPL desktop studio
- [Appwrite](/gems/appwrite.md): BSD-3-Clause backend: auth, database, storage, functions
- [Dokku](/gems/dokku.md): MIT Docker-powered mini-Heroku on one server
- [Gatus](/gems/gatus.md): Apache-2.0 health checks and status page with alerts
- [Homepage](/gems/homepage.md): GPL-3.0 dashboard with 100+ service widgets
- [Glance](/gems/glance.md): AGPL-3.0 lightweight self-hosted feed dashboard
- [changedetection.io](/gems/changedetection-io.md): Apache-2.0 website change monitoring with alerts
- [Dashy](/gems/dashy.md): MIT customizable homelab dashboard with widgets
- [OneDev](/gems/onedev.md): MIT self-hosted Git server with CI/CD, kanban and code search
- [Gogs](/gems/gogs.md): MIT painless self-hosted Git service in one Go binary
- [CrowdSec](/gems/crowdsec.md): MIT open-source IDS/IPS and WAF with a community blocklist
- [Backrest](/gems/backrest.md): GPL-3.0 web UI and scheduler for restic backups
- [Komodo](/gems/komodo.md): GPL-3.0 build and deploy tool for Docker across many servers
- [NetBox](/gems/netbox.md): Apache-2.0 source of truth for network and data-center infra
- [Technitium DNS Server](/gems/technitium-dns.md): GPL-3.0 self-hosted recursive DNS server
- [Versity S3 Gateway](/gems/versitygw.md): Apache-2.0 S3 server over POSIX file systems
- [Termix](/gems/termix.md): Apache-2.0 self-hosted SSH and server manager
- [PrivateBin](/gems/privatebin.md): Zlib zero-knowledge encrypted pastebin you self-host
- [ByteStash](/gems/bytestash.md): GPL-3.0 self-hosted code snippet manager with MCP
- [Kener](/gems/kener.md): MIT status page system built with SvelteKit
- [SeleniumBase](/gems/seleniumbase.md): MIT Python browser automation and testing
- [Dokploy](/gems/dokploy.md): Apache-2.0 core self-hosted PaaS, open-core
- [DBeaver](/gems/dbeaver.md): Apache-2.0 universal SQL client for 100+ databases
- [TiDB](/gems/tidb.md): Apache-2.0 distributed MySQL-compatible SQL database
- [RxDB](/gems/rxdb.md): Apache-2.0 local-first reactive database for JavaScript apps
- [Dgraph](/gems/dgraph.md): Apache-2.0 distributed graph database with native GraphQL
- [Sonic](/gems/sonic.md): MPL-2.0 tiny Rust search backend, an Elasticsearch-lite
- [rqlite](/gems/rqlite.md): MIT distributed, fault-tolerant SQLite over Raft
- [QuestDB](/gems/questdb.md): Apache-2.0 low-latency time-series database with SQL
- [Dexie.js](/gems/dexie.md): Apache-2.0 friendly IndexedDB wrapper for the browser
- [pgcli](/gems/pgcli.md): BSD-3-Clause Postgres CLI with smart autocompletion
- [Trino](/gems/trino.md): Apache-2.0 distributed SQL query engine for data lakes
- [Debezium](/gems/debezium.md): Apache-2.0 change data capture from your databases
- [Citus](/gems/citus.md): AGPL-3.0 Postgres extension for distributed tables
- [CloudNativePG](/gems/cloudnative-pg.md): Apache-2.0 Kubernetes operator for PostgreSQL clusters
- [RisingWave](/gems/risingwave.md): Apache-2.0 streaming database for fresh, queryable data
- [Databend](/gems/databend.md): Apache-2.0 Rust cloud data warehouse on object storage
- [SeaORM](/gems/sea-orm.md): Apache-2.0 async ORM for Rust web services
- [Tile38](/gems/tile38.md): MIT in-memory geospatial database and geofencing server
- [StarRocks](/gems/starrocks.md): Apache-2.0 MPP SQL engine for lakehouse analytics
- [Grist](/gems/grist.md): Apache-2.0 relational spreadsheet you can self-host
- [TypeORM](/gems/typeorm.md): MIT TypeScript ORM with Active Record and Data Mapper
- [drawDB](/gems/drawdb.md): AGPL-3.0 browser ER diagram editor and SQL generator
- [usql](/gems/usql.md): MIT universal psql-style CLI for SQL and NoSQL databases
- [Orama](/gems/orama.md): Apache-2.0 full-text, vector and hybrid search in JS
- [Grafana Pyroscope](/gems/pyroscope.md): AGPL-3.0 continuous profiling platform
- [HyperDX](/gems/hyperdx.md): MIT logs, traces and session replay search on ClickHouse
- [Coroot](/gems/coroot.md): Apache-2.0 eBPF observability with service maps
- [OpenLLMetry](/gems/openllmetry.md): Apache-2.0 OpenTelemetry instrumentation for LLM apps
- [GreptimeDB](/gems/greptimedb.md): Apache-2.0 metrics, logs and traces database
- [Pixie](/gems/pixie.md): Apache-2.0 eBPF in-cluster observability for Kubernetes
- [Grafana Alloy](/gems/grafana-alloy.md): Apache-2.0 OpenTelemetry Collector distribution
- [Grafana Mimir](/gems/grafana-mimir.md): AGPL-3.0 scalable long-term Prometheus storage
- [Parca](/gems/parca.md): Apache-2.0 eBPF continuous profiling down to the line number
- [LangWatch](/gems/langwatch.md): Apache-2.0 LLM tracing, agent tests, evals, gateway
- [Uptrace](/gems/uptrace.md): AGPL-3.0 OpenTelemetry APM on ClickHouse and Postgres
- [Odigos](/gems/odigos.md): Apache-2.0 distributed tracing without code changes
- [HolmesGPT](/gems/holmesgpt.md): Apache-2.0 CNCF AI agent for production incidents
- [Laminar](/gems/laminar.md): Apache-2.0 tracing, evals and signals for AI agents
- [Perses](/gems/perses.md): Apache-2.0 CNCF dashboards with an open dashboard spec
- [Sloth](/gems/sloth.md): Apache-2.0 SLO generator for Prometheus rules and alerts
- [Kubetail](/gems/kubetail.md): Apache-2.0 real-time log dashboard for Kubernetes workloads
- [VictoriaLogs](/gems/victorialogs.md): Apache-2.0 zero-config schema-free log database
- [Parseable](/gems/parseable.md): AGPL-3.0 observability data lake in a single binary
- [OpenLIT](/gems/openlit.md): Apache-2.0 OTel tracing, evals and guardrails for agents
- [Nightingale](/gems/nightingale.md): Apache-2.0 alerting hub for your existing data sources
- [Dear ImGui](/gems/dear-imgui.md): MIT bloat-free immediate-mode GUI for C++ tools
- [libGDX](/gems/libgdx.md): Apache-2.0 cross-platform Java game framework
- [Ebitengine](/gems/ebitengine.md): Apache-2.0 dead simple 2D game engine for Go
- [EnTT](/gems/entt.md): MIT header-only C++ entity component system
- [boardgame.io](/gems/boardgame-io.md): MIT engine for turn-based multiplayer JS games
- [Jolt Physics](/gems/jolt-physics.md): MIT multi-core rigid body physics for games and VR
- [Flame](/gems/flame.md): MIT game engine built on Flutter and Dart
- [Fyrox](/gems/fyrox.md): MIT 2D/3D Rust game engine with a scene editor
- [Stride](/gems/stride.md): MIT C# game engine with an editor, rendering and VR
- [Redot Engine](/gems/redot-engine.md): MIT community fork of Godot for 2D and 3D games
- [macroquad](/gems/macroquad.md): Apache-2.0 simple raylib-style game library for Rust
- [LittleJS](/gems/littlejs.md): MIT tiny fast HTML5 game engine
- [Solar2D](/gems/solar2d.md): MIT free 2D engine for mobile games and apps (ex Corona SDK)
- [Apache Casbin](/gems/casbin.md): Apache-2.0 authorization library: ACL, RBAC, ABAC
- [lldap](/gems/lldap.md): GPL-3.0 light LDAP server for simple user management
- [Authorizer](/gems/authorizer.md): Apache-2.0 self-hosted auth server on your own database
- [Authgear](/gems/authgear.md): Apache-2.0 open alternative to Auth0 and Clerk
- [iron-session](/gems/iron-session.md): MIT stateless encrypted cookie sessions for JavaScript
- [django-allauth](/gems/django-allauth.md): MIT accounts, social login and MFA for Django
- [Vouch Proxy](/gems/vouch-proxy.md): MIT SSO for Nginx via auth_request and OAuth/OIDC
- [Nhost](/gems/nhost.md): MIT open-source Firebase alternative with Postgres and GraphQL
- [lnd](/gems/lnd.md): MIT Lightning Network node daemon in Go
- [Pay](/gems/pay-rails.md): MIT payments engine for Ruby on Rails
- [dj-stripe](/gems/dj-stripe.md): MIT Stripe data synced into Django models
- [Meteroid](/gems/meteroid.md): AGPL-3.0 usage-based pricing and billing platform
- [FOSSBilling](/gems/fossbilling.md): Apache-2.0 billing and client management for hosts
- [Bigcapital](/gems/bigcapital.md): AGPL-3.0 self-hosted accounting and inventory app
- [Huginn](/gems/huginn.md): MIT self-hosted agents that watch the web and act
- [Alertmanager](/gems/alertmanager.md): Apache-2.0 Prometheus alert routing and silencing
- [Diun](/gems/diun.md): MIT notifications when Docker images update
- [notifiers](/gems/notifiers.md): MIT one Python API for many notification providers
- [Noticed](/gems/noticed.md): MIT multi-channel notifications for Ruby on Rails
- [Sonner](/gems/sonner.md): MIT opinionated toast component for React
- [react-hot-toast](/gems/react-hot-toast.md): MIT lightweight toast notifications for React
- [mitmproxy](/gems/mitmproxy.md): MIT interactive TLS-capable intercepting HTTP proxy
- [Yaak](/gems/yaak.md): MIT desktop API client for REST, GraphQL and gRPC
- [Artillery](/gems/artillery.md): MPL-2.0 load testing for HTTP, WebSockets and browsers
- [SWR](/gems/swr.md): MIT React Hooks for data fetching by Vercel
- [Refine](/gems/refine.md): MIT React framework for admin panels and internal tools
- [Fumadocs](/gems/fumadocs.md): MIT docs framework for Next.js, Astro and Vite
- [Nextra](/gems/nextra.md): MIT Next.js site generator for docs and blogs
- [TinaCMS](/gems/tinacms.md): Apache-2.0 Git-backed headless CMS for Markdown and MDX
- [JSON Crack](/gems/jsoncrack.md): Apache-2.0 JSON visualizer that turns data into graphs
- [Nx](/gems/nx.md): MIT monorepo build system with caching and affected runs
- [ShopifySharp](/gems/shopifysharp.md): MIT .NET library for building Shopify apps
- [Enterprise Commerce](/gems/enterprise-commerce.md): MIT Next.js Shopify storefront with Algolia
- [Shopify Vite](/gems/shopify-vite.md): MIT Vite tooling for Shopify theme development
- [Click](/gems/click.md): BSD-3 composable command-line interfaces for Python
- [pipx](/gems/pipx.md): MIT install Python apps in isolated environments
- [VisiData](/gems/visidata.md): GPL-3.0 terminal spreadsheet for exploring tabular data
- [Echo](/gems/echo.md): MIT high-performance minimalist Go web framework
- [ws](/gems/ws.md): MIT fast, tested WebSocket client and server for Node
- [ttyd](/gems/ttyd.md): MIT share your terminal over the web
- [LocalAI](/gems/localai.md): MIT self-hosted OpenAI-compatible engine for any model
- [GPT Researcher](/gems/gpt-researcher.md): Apache-2.0 open deep-research agent with citations
- [AgentScope](/gems/agentscope.md): Apache-2.0 agent framework for capable LLMs
- [Excelize](/gems/excelize.md): BSD-3 pure Go library to read and write Excel files
- [Kratos](/gems/go-kratos.md): MIT Go framework for cloud-native microservices
- [MCP Python SDK](/gems/mcp-python-sdk.md): MIT official Python SDK for MCP servers and clients
- [Activepieces](/gems/activepieces.md): MIT open-source Zapier alternative with MCP pieces
- [Appsmith](/gems/appsmith.md): Apache-2.0 low-code builder for internal tools
- [Versus Incident](/gems/versus-incident.md): MIT self-hosted incident platform with AI SRE agent
- [Otari](/gems/otari.md): Apache-2.0 self-hosted OpenAI-compatible LLM gateway
- [ComfyUI](/gems/comfyui.md): GPL-3.0 node-graph engine and API for local image, video and audio models
- [Flint](/gems/flint-chart.md): MIT chart language and MCP server that turns short specs into polished charts
- [ripwire](/gems/ripwire.md): Apache-2.0 offline code map and quality checks for coding agents (CLI + MCP)
- [Next.js Commerce](/gems/nextjs-commerce.md): MIT App Router storefront template for headless Shopify
- [Hyperswitch Prism](/gems/hyperswitch-prism.md): Apache-2.0 stateless library: one payment API for Stripe, Adyen and more
- [bgfx](/gems/bgfx.md): BSD-2 cross-platform rendering library: bring your own engine
- [MCP for Unity](/gems/unity-mcp.md): MIT MCP server that lets AI assistants drive the Unity Editor
- [Apache HertzBeat](/gems/hertzbeat.md): Apache-2.0 agentless monitoring, alerting and status pages in one
- [Parse Server](/gems/parse-server.md): Apache-2.0 self-hosted backend on Node.js with MongoDB or Postgres
- [ToolJet](/gems/tooljet.md): AGPL-3.0 low-code builder for internal tools on your own data
- [Gitify](/gems/gitify.md): MIT menu-bar app for GitHub, GitLab, Gitea and Bitbucket notifications
- [Restate](/gems/restate.md): BUSL durable execution engine; self-host free, Apache after 4 years
- [Skyvern](/gems/skyvern.md): AGPL-3.0 browser automation driven by an LLM plus vision, not selectors
- [Magentic-UI](/gems/magentic-ui.md): MIT human-in-the-loop web agent from Microsoft Research
- [Agent Zero](/gems/agent-zero.md): MIT general-purpose agent framework that runs in Docker and uses the OS as its tool
- [gptme](/gems/gptme.md): MIT terminal agent that edits files and runs shell and Python
- [Claude Squad](/gems/claude-squad.md): AGPL-3.0 TUI that runs Claude Code, Codex and Aider sessions in parallel
- [Lightpanda](/gems/lightpanda.md): AGPL-3.0 headless browser written in Zig for agents and scraping
- [kubernetes-mcp-server](/gems/kubernetes-mcp-server.md): Apache-2.0 MCP server that talks to the Kubernetes API directly
- [Terraform MCP Server](/gems/terraform-mcp-server.md): HashiCorp's official MPL-2.0 MCP server for Terraform Registry and HCP Terraform
- [Docker MCP Gateway](/gems/docker-mcp-gateway.md): MIT docker mcp CLI plugin that runs MCP servers in isolated containers
- [Inspect AI](/gems/inspect-ai.md): MIT LLM and agent evaluation framework from the UK AI Security Institute
- [Outlines](/gems/outlines.md): Apache-2.0 structured generation: JSON Schema, regex or grammar
- [Sentry MCP](/gems/sentry-mcp.md): Sentry's official MCP server for issues, traces and Seer; FSL source-available
- [Terraform](/gems/terraform.md): HashiCorp's infrastructure-as-code CLI; BUSL-1.1 source-available, free to self-host
- [SMG (Shepherd Model Gateway)](/gems/smg.md): Apache-2.0 Rust gateway that routes OpenAI and Anthropic API traffic across vLLM, SGLang, TRT-LLM and cloud models
- [Fiber](/gems/fiber.md): MIT Express-style web framework for Go, built on fasthttp
- [urfave/cli](/gems/urfave-cli.md): MIT declarative package for building command-line tools in Go
- [Omnigraph](/gems/omnigraph.md): MIT graph database on object storage with branching, a typed schema and graph + vector + full-text retrieval for agents
- [HashiCorp Vault](/gems/vault.md): HashiCorp's secrets manager and encryption service; BUSL-1.1 source-available, free to self-host
- [Harbor](/gems/harbor.md): Apache-2.0 CNCF container registry with RBAC, vulnerability scanning, signing and replication
- [Istio](/gems/istio.md): Apache-2.0 CNCF service mesh for Kubernetes: mTLS, traffic routing and telemetry, with or without sidecars
- [Netdata](/gems/netdata.md): GPL-3.0 per-second monitoring agent with auto-discovery, alerts and ML anomaly detection
- [PatchMon](/gems/patchmon.md): AGPL-3.0 self-hosted patch management for Linux fleets, with outbound-only agents and dry-run approvals
- [Gin](/gems/gin.md): MIT HTTP web framework for Go with fast routing and middleware, built on net/http
- [zot](/gems/zot.md): Apache-2.0 single-binary OCI registry for container images and artifacts
- [Zulip](/gems/zulip.md): Apache-2.0 team chat organised by topic threads; self-host or use Zulip Cloud
- [Synapse](/gems/synapse.md): AGPL-3.0 reference Matrix homeserver from Element, in Python and Rust
- [Django](/gems/django.md): BSD-3-Clause batteries-included Python web framework: ORM, migrations, admin, auth
- [Celery](/gems/celery.md): BSD-3-Clause distributed task queue for Python, on RabbitMQ or Redis

## Skills

527 agent skills. Index: /skills

- [Claude Academy Guide](/skills/academy-guide.md): Claude Academy course matcher for product questions
- [Algorithmic Art](/skills/algorithmic-art.md): Seeded p5.js generative-art skill
- [Anthropic Brand Guidelines](/skills/brand-guidelines.md): Anthropic brand colors and type for artifacts
- [Canvas Design](/skills/canvas-design.md): Poster and static visual design in PNG/PDF
- [Claude API](/skills/claude-api.md): Claude API / Anthropic SDK reference before you guess
- [Doc Coauthoring](/skills/doc-coauthoring.md): Structured loop for co-authoring specs and docs
- [Frontend Design](/skills/frontend-design.md): Intentional visual direction so UI is not template-default
- [MCP Builder](/skills/mcp-builder.md): How to build MCP servers in Python or TypeScript
- [Skill Creator](/skills/skill-creator.md): Create, edit, eval, and tune agent skills
- [Slack GIF Creator](/skills/slack-gif-creator.md): Animated GIFs sized and timed for Slack
- [Theme Factory](/skills/theme-factory.md): Ten preset themes, or a new one, for artifacts
- [Web Artifacts Builder](/skills/web-artifacts-builder.md): Multi-component claude.ai HTML artifacts (React + shadcn)
- [Webapp Testing](/skills/webapp-testing.md): Playwright toolkit for local webapp UI and logs
- [Dispatching Parallel Agents](/skills/dispatching-parallel-agents.md): Split independent work across parallel agents
- [Executing Plans](/skills/executing-plans.md): Run a written plan in a separate session with checkpoints
- [Finishing a Development Branch](/skills/finishing-a-development-branch.md): Integrate a finished, tested branch
- [Receiving Code Review](/skills/receiving-code-review.md): Verify review feedback before you implement it
- [Requesting Code Review](/skills/requesting-code-review.md): Ask for review after a real feature or before merge
- [Subagent-Driven Development](/skills/subagent-driven-development.md): Execute a plan with independent subagents in-session
- [Systematic Debugging](/skills/systematic-debugging.md): Root-cause the bug before proposing a fix
- [Test-Driven Development](/skills/test-driven-development.md): Write the failing test before implementation
- [Using Git Worktrees](/skills/using-git-worktrees.md): Isolate feature work in a git worktree
- [Verification Before Completion](/skills/verification-before-completion.md): Run the proof before claiming done
- [Writing Plans](/skills/writing-plans.md): Bite-sized implementation plan after a spec exists
- [API and Interface Design](/skills/api-and-interface-design.md): Stable APIs, module boundaries, and public contracts
- [Browser Testing with DevTools](/skills/browser-testing-with-devtools.md): Chrome DevTools MCP for real-browser evidence
- [CI/CD and Automation](/skills/ci-cd-and-automation.md): Build, test, and deploy pipelines as quality gates
- [Code Review and Quality](/skills/code-review-and-quality.md): Multi-axis review before a change lands
- [Code Simplification](/skills/code-simplification.md): Clarify working code without changing behavior
- [Constraint-Driven Development](/skills/constraint-driven-development.md): Write the quality bar so agents cannot quietly lower it
- [Deprecation and Migration](/skills/deprecation-and-migration.md): Sunset, migrate, and expand/contract without downtime
- [Documentation and ADRs](/skills/documentation-and-adrs.md): Record decisions so the next engineer and agent can follow
- [Doubt-Driven Development](/skills/doubt-driven-development.md): Adversarial review of high-stakes decisions before they stand
- [Frontend UI Engineering](/skills/frontend-ui-engineering.md): Production-quality accessible, responsive UI
- [Git Workflow and Versioning](/skills/git-workflow-and-versioning.md): Commits, branches, PRs, tags, and version bumps
- [Idea Refine](/skills/idea-refine.md): Diverge, then converge a vague idea into a sharp concept
- [Interview Me](/skills/interview-me.md): One-question interviews until the real intent is clear
- [Observability and Instrumentation](/skills/observability-and-instrumentation.md): Logs, metrics, traces so production is diagnosable
- [Performance Optimization](/skills/performance-optimization.md): Frontend, backend, and query performance with evidence
- [Planning and Task Breakdown](/skills/planning-and-task-breakdown.md): Turn a spec into ordered, estimable tasks
- [Security and Hardening](/skills/security-and-hardening.md): Input, auth, data, and supply-chain hardening
- [Shipping and Launch](/skills/shipping-and-launch.md): Pre-launch checklist, rollout, and rollback
- [Source-Driven Development](/skills/source-driven-development.md): Cite official docs instead of remembered APIs
- [Spec-Driven Development](/skills/spec-driven-development.md): Write the spec first when none exists yet
- [Vercel React Best Practices](/skills/vercel-react-best-practices.md): Vercel Engineering React and Next.js performance patterns
- [Vercel Composition Patterns](/skills/vercel-composition-patterns.md): React composition that scales past boolean props
- [Vercel React Native Skills](/skills/vercel-react-native-skills.md): React Native and Expo performance and native-module patterns
- [Use Railway](/skills/use-railway.md): Railway signup, deploy, services, and infrastructure ops
- [Wrangler](/skills/wrangler.md): Cloudflare Workers CLI, before you type it
- [Workers Best Practices](/skills/workers-best-practices.md): Production Workers anti-patterns
- [Durable Objects](/skills/durable-objects.md): Stateful coordination on Workers
- [Turnstile Spin](/skills/turnstile-spin.md): Bot check via Cloudflare Turnstile
- [Sandbox Stable](/skills/sandbox-stable.md): @cloudflare/sandbox on the default tag
- [Sandbox Next](/skills/sandbox-next.md): Sandbox SDK 1.0 preview tag
- [Cloudflare Email Service](/skills/cloudflare-email-service.md): Send and route mail from Workers
- [Agents SDK](/skills/agents-sdk.md): Stateful agents on Cloudflare Workers
- [Agents.md](/skills/agents-md.md): This writes AGENTS.md, not a skill
- [Claude Settings Audit](/skills/claude-settings-audit.md): permissions.json from the repo shape
- [Django Access Review](/skills/django-access-review.md): IDOR and tenant isolation in Django
- [Django Perf Review](/skills/django-perf-review.md): N+1 and queryset audits
- [Sentry Doc Coauthoring](/skills/sentry-doc-coauthoring.md): Structured pass with the human still in it
- [GH Review Requests](/skills/gh-review-requests.md): Unread review-request notifications
- [GHA Security Review](/skills/gha-security-review.md): Pwn-request and workflow injection
- [Iterate PR](/skills/iterate-pr.md): CI + review loop until the PR is green
- [PR Writer](/skills/pr-writer.md): Reviewer-facing title and body
- [Prompt Optimizer](/skills/prompt-optimizer.md): Evals and model-family adapters
- [Skill Scanner](/skills/skill-scanner.md): Audit a SKILL.md before you install it
- [Find Bugs](/skills/find-bugs.md): Bugs on this branch, not the whole repo
- [Security Review](/skills/security-review.md): OWASP-style pass with confidence scores
- [Document API Endpoint](/skills/document-api-endpoint.md): Sentry @extend_schema and TypedDicts
- [Claude Security](/skills/claude-security.md): In-session scan, then patches you apply
- [Claude Automation Recommender](/skills/claude-automation-recommender.md): Hooks, skills, MCP — recommendations only
- [Agent Development](/skills/agent-development.md): Claude Code subagent frontmatter
- [Command Development](/skills/command-development.md): Slash commands for Claude Code plugins
- [Hook Development](/skills/hook-development.md): PreToolUse and friends, in plugins
- [Plugin Structure](/skills/plugin-structure.md): plugin.json at the root, components beside it
- [Plugin Settings](/skills/plugin-settings.md): .local.md config for a plugin
- [Build MCP App](/skills/build-mcp-app.md): In-chat widgets on an MCP server
- [Build MCPB](/skills/build-mcpb.md): Bundle a local MCP with its runtime
- [Expo Animation](/skills/expo-animation.md): Reanimated, Gesture Handler, and haptics on device
- [Expo App Clip](/skills/expo-app-clip.md): iOS App Clip target beside the parent Expo app
- [Expo Brownfield](/skills/expo-brownfield.md): Embed Expo in an existing Swift or Kotlin app
- [Expo Data Fetching](/skills/expo-data-fetching.md): Fetch, React Query, SWR, and Expo Router loaders
- [Expo Design System](/skills/expo-design-system.md): Tokens, variants, and an in-app component library for Expo
- [Expo Dev Client](/skills/expo-dev-client.md): Local and TestFlight Expo development clients
- [Expo DOM](/skills/expo-dom.md): Web code in a native webview, incrementally
- [Expo Examples](/skills/expo-examples.md): Adapt with-* starters from expo/examples
- [Expo Migrate Module](/skills/expo-migrate-module.md): Swift Expo module 1.0 DSL → 2.0 macros
- [Expo Module](/skills/expo-module.md): New Expo Modules API in Swift, Kotlin, and TypeScript
- [Expo Native UI](/skills/expo-native-ui.md): HIG, semantic color, and SF Symbols on Expo screens
- [Expo Project Structure](/skills/expo-project-structure.md): Folder layout for a new Expo Router app
- [Expo Router](/skills/expo-router.md): File-based routes, Stack, NativeTabs, and modals
- [Expo UI](/skills/expo-ui.md): @expo/ui SwiftUI and Compose primitives
- [Expo Upgrade](/skills/expo-upgrade.md): Expo SDK upgrades and dependency fixes
- [Expo Web to Native](/skills/expo-web-to-native.md): Port Next/Vite/CRA to Expo native, screen by screen
- [EAS App Stores](/skills/eas-app-stores.md): EAS build and submit to App Store and Play
- [EAS Hosting](/skills/eas-hosting.md): Expo web and API routes via eas deploy
- [EAS Observe](/skills/eas-observe.md): expo-observe metrics, 10k MAU free cap
- [EAS Simulator](/skills/eas-simulator.md): Remote iOS/Android sim on EAS cloud
- [EAS Update](/skills/eas-update.md): OTA JS/asset updates via expo-updates
- [EAS Update Insights](/skills/eas-update-insights.md): Health of published EAS Update rollouts
- [EAS Workflows](/skills/eas-workflows.md): .eas/workflows YAML that burns compute minutes
- [Supabase Postgres Best Practices](/skills/supabase-postgres-best-practices.md): Load before any Postgres schema or SQL
- [Supabase](/skills/supabase.md): Any Supabase product; changelog-first vendor skill
- [Prisma CLI](/skills/prisma-cli.md): ORM CLI: init, generate, migrate, studio
- [Prisma Client API](/skills/prisma-client-api.md): findMany, create, $transaction
- [Prisma Database Setup](/skills/prisma-database-setup.md): Wire Prisma to Postgres, MySQL, SQLite, Mongo
- [Prisma Driver Adapter Implementation](/skills/prisma-driver-adapter-implementation.md): ORM 7 SQL driver adapters
- [Prisma MongoDB Upgrade](/skills/prisma-mongodb-upgrade.md): Mongo on v6 has no v7 path
- [Prisma Upgrade v7](/skills/prisma-upgrade-v7.md): v6→v7 breaking changes
- [Prisma Postgres](/skills/prisma-postgres.md): Hosted Prisma Postgres, not OSS Postgres
- [Prisma Compute](/skills/prisma-compute.md): Prisma Compute deploy, 1M requests/mo free
- [Threat Model Generation](/skills/threat-model-generation.md): STRIDE threat model for a repo
- [Firecrawl Agent](/skills/firecrawl-agent.md): Multi-page schema extract via Firecrawl agent
- [Firecrawl Crawl](/skills/firecrawl-crawl.md): Bulk crawl; no keyless free tier
- [Firecrawl Build Scrape](/skills/firecrawl-build-scrape.md): One-URL /scrape in app code
- [Firecrawl Build Search](/skills/firecrawl-build-search.md): Firecrawl /search in product code
- [Firecrawl Build Interact](/skills/firecrawl-build-interact.md): Clicks and forms after scrape
- [Hugging Face Papers](/skills/huggingface-papers.md): HF/arXiv URL to markdown
- [Browser](/skills/browser.md): NL browse CLI; local Chrome or Browserbase
- [Browser Trace](/skills/browser-trace.md): CDP/screenshot debug of a failed browse
- [Browser to API](/skills/browser-to-api.md): Trace to OpenAPI 3.1 from XHR
- [Transformers.js](/skills/transformers-js.md): Transformers.js in browser and Node
- [Hugging Face Local Models](/skills/huggingface-local-models.md): GGUF + llama.cpp on CPU/Metal/CUDA/ROCm
- [Hugging Face Datasets](/skills/huggingface-datasets.md): Hub Dataset Viewer API
- [Hugging Face Gradio](/skills/huggingface-gradio.md): Gradio apps in Python
- [Hugging Face Trackio](/skills/huggingface-trackio.md): Trackio metrics, not W&B
- [Hugging Face Community Evals](/skills/huggingface-community-evals.md): Local inspect-ai and lighteval
- [Hugging Face Paper Publisher](/skills/huggingface-paper-publisher.md): Create and claim HF paper pages
- [Hugging Face Vision Trainer](/skills/huggingface-vision-trainer.md): Detection/SAM on HF Jobs GPUs
- [Playwright](/skills/playwright.md): playwright-cli from the terminal
- [Jupyter Notebook](/skills/jupyter-notebook.md): .ipynb only, not a Python app skill
- [GH Fix CI](/skills/gh-fix-ci.md): Failing Actions on the current PR
- [GH Address Comments](/skills/gh-address-comments.md): Review comments on the current-branch PR
- [Yeet](/skills/yeet.md): Stage, commit, push, and open a PR
- [Screenshot](/skills/screenshot.md): OS-level capture, not web page shots
- [OpenAI Docs](/skills/openai-docs.md): Current OpenAI/Codex docs; twin of claude-api
- [Netlify Deploy](/skills/netlify-deploy.md): npx netlify; Netlify says build free
- [Render Deploy](/skills/render-deploy.md): render.yaml; Render says deploy for free
- [Linear](/skills/linear.md): Issues via Linear; Free $0, needs auth
- [Notion Knowledge Capture](/skills/notion-knowledge-capture.md): Chats into a Notion wiki or how-to
- [Upstash Redis Start](/skills/upstash-redis-start.md): Scratch Redis, 72h, no signup
- [Upstash Redis JS](/skills/upstash-redis-js.md): @upstash/redis HTTP client, not ioredis
- [Upstash Ratelimit JS](/skills/upstash-ratelimit-js.md): Rate limit on top of Upstash Redis
- [Upstash QStash JS](/skills/upstash-qstash-js.md): HTTP queue and schedules on QStash
- [Upstash Workflow JS](/skills/upstash-workflow-js.md): Durable workflows on QStash
- [Upstash Vector JS](/skills/upstash-vector-js.md): Upstash Vector, not pgvector
- [Upstash Search JS](/skills/upstash-search-js.md): Upstash Search vendor SDK
- [Upstash CLI](/skills/upstash-cli.md): upstash CLI; needs API token
- [PlanetScale pscale CLI Automation](/skills/planetscale-pscale-cli-automation.md): Headless pscale with --format json
- [PlanetScale Postgres Safety Review](/skills/planetscale-postgres-safety-review.md): PS Postgres only; not the Supabase skill
- [PlanetScale Vitess Safety Review](/skills/planetscale-vitess-safety-review.md): Vitess branch safety review
- [PlanetScale Query Insights and Tags](/skills/planetscale-query-insights-and-tags.md): PlanetScale query insights and tags
- [PlanetScale Schema Recommendations Agent Loop](/skills/planetscale-schema-recommendations-agent-loop.md): Triage PS schema recs; does not apply prod
- [PlanetScale MCP Agent Operating Model](/skills/planetscale-mcp-agent-operating-model.md): PS MCP policy; dead without PS MCP
- [WorkOS](/skills/workos.md): WorkOS auth; Free $0/mo, dead without WorkOS
- [ASP.NET Core](/skills/aspnet-core.md): .NET-only ASP.NET Core, Blazor, Minimal APIs
- [ChatGPT Apps](/skills/chatgpt-apps.md): ChatGPT Apps SDK with MCP widget
- [CLI Creator](/skills/cli-creator.md): Codex companion CLI from OpenAPI or curl
- [Multi-Stage Dockerfile](/skills/multi-stage-dockerfile.md): Dockerfile-only multi-stage images
- [MCP Security Audit](/skills/mcp-security-audit.md): Audit .mcp.json, not security-review
- [OpenAPI to Application Code](/skills/openapi-to-application-code.md): Codegen a whole app from an OpenAPI spec
- [Safe Browser](/skills/safe-browser.md): Local domain-allowlisted Claude Agent SDK browser
- [Browserbase Functions](/skills/functions.md): Scheduled or webhook Browserbase cloud browser jobs
- [Firecrawl Map](/skills/firecrawl-map.md): URL list/filter. Discovery only; not extract
- [Firecrawl Download](/skills/firecrawl-download.md): Bulk local markdown and screenshots
- [Firecrawl Monitor](/skills/firecrawl-monitor.md): Webhook/email watches; recurring paid path
- [Instrument Integration](/skills/instrument-integration.md): PostHog SDK wiring. Free, not a trial
- [Instrument Product Analytics](/skills/instrument-product-analytics.md): PostHog product analytics events
- [Instrument Feature Flags](/skills/instrument-feature-flags.md): PostHog feature flags. Free tier
- [Instrument LLM Analytics](/skills/instrument-llm-analytics.md): PostHog LLM analytics. Free tier
- [Liveblocks Best Practices](/skills/liveblocks-best-practices.md): Liveblocks collab. Free on liveblocks.io/pricing
- [Yjs Best Practices](/skills/yjs-best-practices.md): Yjs library, not Liveblocks-specific
- [Stripe Best Practices](/skills/stripe-best-practices.md): Stripe account exists; processing fees apply
- [Stripe Docs](/skills/stripe-docs.md): Stripe docs lookup. Processing fees apply
- [Upgrade Stripe](/skills/upgrade-stripe.md): Stripe API/SDK upgrade path
- [Migrate AI SDK v6 to v7](/skills/migrate-ai-sdk-v6-to-v7.md): Vercel AI SDK v6→v7. Version-gate; will stale
- [Add WebMCP](/skills/add-webmcp.md): First-party WebMCP; not generic MCP builder
- [Cookie Sync](/skills/cookie-sync.md): Local Chrome cookies into Browserbase
- [Neon Postgres](/skills/neon-postgres.md): Lakebase Postgres setup, pooled vs direct, DATABASE_URL
- [Neon Postgres Branches](/skills/neon-postgres-branches.md): Pick/create Neon branch type; schema-only is Beta
- [Neon Functions](/skills/neon-functions.md): Long-running Node HTTP on a Neon branch. Public beta
- [Neon Object Storage](/skills/neon-object-storage.md): S3-compatible storage that branches with Neon. Public beta
- [LiveKit Agents](/skills/livekit-agents.md): Voice AI agent via LiveKit Cloud + Agents SDK
- [Agent OWASP Compliance](/skills/agent-owasp-compliance.md): OWASP ASI Top 10 audit before prod. Community Copilot skill
- [Inngest Setup](/skills/inngest-setup.md): Inngest Cloud + TypeScript setup. Hobby $0/mo, no CC
- [Inngest Durable Functions](/skills/inngest-durable-functions.md): Inngest steps, not BullMQ. Cloud + TypeScript
- [Inngest Events](/skills/inngest-events.md): Inngest event schema; 24h dedupe is vendor-specific
- [Inngest Flow Control](/skills/inngest-flow-control.md): Concurrency/throttle/batch. Hobby is 5 concurrent steps
- [Inngest Realtime](/skills/inngest-realtime.md): v4-native inngest/realtime, not @inngest/realtime
- [Inngest Agents](/skills/inngest-agents.md): AgentKit lock. Durable agents on Inngest Cloud
- [Inngest v3 to v4 Migration](/skills/inngest-v3-v4-migration.md): SDK v3→v4. Stale the day v5 ships
- [Convex Quickstart](/skills/convex-quickstart.md): Next.js + Convex template. JSON-generated; can drift
- [Convex Auth](/skills/convex-auth.md): Convex Auth only — not Clerk or Better Auth
- [Convex Create Component](/skills/convex-create-component.md): Convex Components with isolated tables, not React
- [Convex Migrate](/skills/convex-migrate.md): Live-data backfill with @convex-dev/migrations, not Prisma
- [Infisical Setup](/skills/infisical-setup.md): CLI/SDK secrets into the app. Slug is infisical-setup
- [Infisical Kubernetes Operator](/skills/infisical-kubernetes-operator.md): v1beta1 CRDs. v1alpha1 is a false-fire
- [Infisical Self-Host](/skills/infisical-self-host.md): MIT core only. ee/ needs LICENSE_KEY
- [Infisical Secret Scanning](/skills/infisical-secret-scanning.md): github-radar data source, not github. infisical scan
- [Infisical Secret Syncs](/skills/infisical-secret-syncs.md): Push secrets out. Free cap is 10 syncs
- [React Email](/skills/react-email.md): Compose React email templates. Delivery still hits 100/day
- [Resend CLI](/skills/resend-cli.md): resend CLI for shell/CI. --react-email can take over compose
- [Drizzle Migration Conflict](/skills/drizzle-migration-conflict.md): Community v0.1. Not drizzle-team. Can take over generate
- [ElevenLabs Text-to-Speech](/skills/elevenlabs-text-to-speech.md): Cloud TTS. Free 10k credits is minutes, not a product
- [ElevenLabs Speech Engine](/skills/elevenlabs-speech-engine.md): Your runtime, their STT/TTS. Cloud + key. Not LiveKit OSS
- [ElevenLabs Sound Effects](/skills/elevenlabs-sound-effects.md): Text-to-SFX, not speech. 200 credits/gen
- [ElevenLabs Music](/skills/elevenlabs-music.md): Music API. Commercial music is Starter+. 900 credits/min
- [ElevenLabs Dubbing](/skills/elevenlabs-dubbing.md): Dubbing Studio is Starter+. 2k-10k credits/min
- [Replicate Find Models](/skills/replicate-find-models.md): Search Replicate models. Not Hugging Face Hub
- [Replicate Compare Models](/skills/replicate-compare-models.md): Pick among Replicate models. Cost numbers stale
- [Replicate Run Models](/skills/replicate-run-models.md): Paid predictions. Needs REPLICATE_API_TOKEN
- [Replicate Build Models](/skills/replicate-build-models.md): Cog package. Skill still aims at Replicate deploy
- [Replicate Publish Models](/skills/replicate-publish-models.md): cog push. Public model is not free inference
- [Sanity Migration](/skills/sanity-migration.md): Replatform to Sanity. Full CMS move, not PT conversion
- [Sanity Portable Text Conversion](/skills/sanity-portable-text-conversion.md): HTML/MD to Portable Text. Ingest, not replatform
- [Sanity Portable Text Serialization](/skills/sanity-portable-text-serialization.md): PT to React/Svelte/Vue/HTML. Render, not ingest
- [TanStack AI Chat Experience](/skills/tanstack-ai-chat-experience.md): False-fires on Vercel AI SDK streamText / useChat
- [TanStack AI Tool Calling](/skills/tanstack-ai-tool-calling.md): Isomorphic toolDefinition. Not OpenAI tools / Vercel tool()
- [TanStack AI Media Generation](/skills/tanstack-ai-media-generation.md): Not ElevenLabs/Replicate. generate* needs provider keys
- [TanStack AI Structured Outputs](/skills/tanstack-ai-structured-outputs.md): Forbids provider-level json_schema you already set
- [TanStack AI Adapter Configuration](/skills/tanstack-ai-adapter-configuration.md): BytePlus TWO keys no fallback. Ollama is the 0 USD local path
- [TanStack AI AG-UI Protocol](/skills/tanstack-ai-ag-ui-protocol.md): Server AG-UI SSE/NDJSON. Not CopilotKit client
- [TanStack AI Code Mode](/skills/tanstack-ai-code-mode.md): Isolate drivers. 0.3.8 vs ai-core 0.42.0. Not generic sandbox
- [Tavily Search](/skills/tavily-search.md): LLM-optimized search. May trigger on generic requests. 1 credit basic / 2 advanced
- [Tavily Research](/skills/tavily-research.md): Cited multi-source report. Loud free-tier eater
- [Pinecone Quickstart](/skills/pinecone-quickstart.md): First-time Database vs Assistant tour. Not production schema
- [Pinecone Query](/skills/pinecone-query.md): Integrated indexes only. Standard/external must use pinecone-cli
- [Pinecone CLI](/skills/pinecone-cli.md): pc CLI for all index types. False-fires on generic pc/redis-cli
- [Pinecone Full-Text Search](/skills/pinecone-full-text-search.md): SDK 10+ / API 2026-07. pinecone.preview deleted. Not Elasticsearch
- [Pinecone Assistant](/skills/pinecone-assistant.md): Managed RAG. Starter caps. Not LangChain RAG
- [Qdrant Deployment Options](/skills/qdrant-deployment-options.md): Docker vs Cloud vs local vs Edge. Local Python in-memory is not server-format
- [Qdrant Edge](/skills/qdrant-edge.md): In-process shard. Beta API drifts. No one-call .sync(). Not sqlite-vec
- [Qdrant Model Migration](/skills/qdrant-model-migration.md): Zero-downtime embedding switch. Named-vector add/delete needs v1.18+
- [Qdrant Multitenancy](/skills/qdrant-multitenancy.md): Default payload-filter isolation, NOT collection-per-tenant
- [Qdrant Version Upgrade](/skills/qdrant-version-upgrade.md): Storage compat one minor only. Cloud automates; self-host stepwise
- [Qdrant Sizing](/skills/qdrant-sizing.md): Cloud Free 1 GB will fail production assumptions. Not Pinecone RU/WU
- [Algolia Quickstart](/skills/algolia-quickstart.md): Account/app from zero. Not index ops on existing app
- [Algolia Index Configuration](/skills/algolia-index-configuration.md): Guidance-only. Live writes via cli/mcp. Not Elasticsearch mapping
- [Algolia InstantSearch UI](/skills/algolia-instantsearch-ui.md): JS/React/Vue. Angular InstantSearch deprecated. Not autocomplete
- [Algolia Autocomplete](/skills/algolia-autocomplete.md): Typeahead not InstantSearch SRP. False-fires on any search box
- [Algolia Crawler](/skills/algolia-crawler.md): Crawl into Algolia index, not markdown dump. Over-limit = suspend or attribution
- [Algolia Migration](/skills/algolia-migration.md): SDK major v3 to v4 / v4 to v5. Dart excluded. Not data/index migration
- [DuckDB Install Extension](/skills/duckdb-install-duckdb.md): INSTALL extension, not brew-installing DuckDB
- [DuckDB Read File](/skills/duckdb-read-file.md): May trigger on “what’s in this file” questions instead of the Read tool. Not for source code
- [DuckDB Convert File](/skills/duckdb-convert-file.md): May trigger on generic file conversion meant for pandoc/ffmpeg. Data files only
- [DuckDB Attach DB](/skills/duckdb-attach-db.md): Session-state is Claude-skill local, not DuckDB server attach
- [DuckDB S3 Explore](/skills/duckdb-s3-explore.md): Query s3:// r2:// gs:// without download. Needs provider creds. Not AWS CLI ls
- [DuckDB Spatial](/skills/duckdb-spatial.md): May trigger on any geo request. Spatial extension must already be installed
- [Knock Setup](/skills/knock-setup.md): Vendor onboarding. Always asks for Knock account first
- [Knock In-App UI](/skills/knock-in-app-ui.md): React-only. Developer cap 500 guide AU. Branding on feeds is Starter-gated
- [Knock CLI](/skills/knock-cli.md): Pull/push workflows via CLI. Not MCP path
- [Knock Migrate to Knock](/skills/knock-migrate-to-knock.md): Discovery-only. Writes knock-plan.md. May trigger on email work meant for Resend/SendGrid
- [chDB DataStore](/skills/chdb-datastore.md): Pandas API on in-process ClickHouse. Not a server. Distinct from chdb-sql
- [chDB SQL](/skills/chdb-sql.md): In-process ClickHouse SQL. Not DataStore pandas. No server
- [ClickHouse JS Node Coding](/skills/clickhouse-js-node-coding.md): @clickhouse/client Node only. Not client-web / Edge / Workers
- [ClickHouse JS Node RowBinary](/skills/clickhouse-js-node-rowbinary.md): RowBinary codec generator. Not JSONEachRow. Node only
- [Infra ClickHouse](/skills/infra-clickhouse.md): clickhousectl local vs Cloud. Cloud is trial plus credits, not hobby
- [MotherDuck Connect](/skills/motherduck-connect.md): Postgres endpoint false-fires as Neon/PlanetScale. Not local DuckDB
- [MotherDuck CLI](/skills/motherduck-cli.md): Not MCP. Dives/Flights are MotherDuck-specific. Lite Flights 30 min/day
- [MotherDuck Load Data](/skills/motherduck-load-data.md): DuckDB convert/read-file twin but destination is MotherDuck. 10 GB Lite cap
- [MotherDuck Share Data](/skills/motherduck-share-data.md): Zero-copy metadata clones. Not S3 sharing. Not DuckDB ATTACH of a file
- [MotherDuck DuckLake](/skills/motherduck-ducklake.md): Default is native storage. Over-fires on lakehouse / Iceberg-on-S3
- [MotherDuck REST API](/skills/motherduck-rest-api.md): Control plane, not SQL. Lite service-account cap is 2
- [Hugging Face Spaces](/skills/huggingface-spaces.md): Host Gradio/Docker/Static. Free: Static + max 2 ZeroGPU. cpu-basic not free
- [Hugging Face ZeroGPU](/skills/huggingface-zerogpu.md): @spaces.GPU / pickle isolation. Gradio ZeroGPU only — Docker/Static will not schedule
- [Hugging Face LoRA Space Builder](/skills/huggingface-lora-space-builder.md): Publishes a real private Space for a Hub LoRA. May trigger on make-a-Space requests
- [Hugging Face Train Sentence Transformers](/skills/huggingface-train-sentence-transformers.md): Router not a manual. Skip references/ and trainers break. Not generic embedding
- [Hugging Face TRL Training](/skills/huggingface-trl-training.md): TRL CLI SFT/DPO/GRPO. Not huggingface-llm-trainer. GPU assumed, not 0 USD laptop
- [Hugging Face hf-mem](/skills/huggingface-hf-mem.md): VRAM estimate via HTTP Range, no download. Needs uvx. Gated models need HF_TOKEN
- [Novu Trigger Notification](/skills/novu-trigger-notification.md): knock-setup twin. Topic fan-out bills one run per matching subscriber
- [Novu Manage Subscribers](/skills/novu-manage-subscribers.md): Not user-auth. subscriberId is not a Clerk/Auth.js user
- [Novu Inbox Integration](/skills/novu-inbox-integration.md): knock-in-app-ui twin. Feeds, not Knock guides. HMAC required in production
- [Novu Manage Preferences](/skills/novu-manage-preferences.md): Not Knock preferences API. Two-level model only (workflow + subscriber)
- [Novu Framework Integration](/skills/novu-framework-integration.md): @novu/framework + Bridge. Cloud still executes Bridge. Not Resend-only react-email
- [Novu Dashboard Workflows](/skills/novu-dashboard-workflows.md): MCP/dashboard step content, not framework-integration
- [Trigger Getting Started](/skills/trigger-getting-started.md): Vendor lock. CLI login + TRIGGER_SECRET_KEY. Self-contained
- [Trigger Authoring Tasks](/skills/trigger-authoring-tasks.md): CLI stub; 404s until @trigger.dev/sdk installed. False-fires on BullMQ/Inngest
- [Trigger Authoring Chat Agent](/skills/trigger-authoring-chat-agent.md): CLI stub. Loud vs Vercel useChat / tanstack-ai-chat-experience
- [Trigger Chat Agent Advanced](/skills/trigger-chat-agent-advanced.md): CLI stub. Version-gate. Re-POSTing /sessions drops the message
- [Trigger Realtime and Frontend](/skills/trigger-realtime-and-frontend.md): CLI stub. Loud vs inngest-realtime. Free cap 10 concurrent Realtime
- [Axiom Alerting](/skills/axiom-alerting.md): v2 monitors Bearer from .axiom.toml not Knock
- [Axiom Building Dashboards](/skills/axiom-building-dashboards.md): False-fires on Grafana Datadog Splunk migrate
- [Axiom Query Metrics](/skills/axiom-query-metrics.md): otel metrics v1 scripts 404 if only SKILL.md
- [Axiom Metrics Chart](/skills/axiom-metrics-chart.md): Consumer of query-metrics zero-dep Unicode
- [Axiom SPL to APL](/skills/axiom-spl-to-apl.md): Join preview 50k time pickers dont translate
- [Contentful API](/skills/contentful-api.md): Five APIs curl-only false-fires vs JS SDK
- [Contentful Next.js](/skills/contentful-nextjs.md): Next-only; may trigger on Remix, Astro or Nuxt work
- [Contentful Migration](/skills/contentful-migration.md): False-fires on Prisma Drizzle vs sanity-migration
- [Contentful Custom App From Scratch](/skills/contentful-custom-app-from-scratch.md): App Framework only not marketing site
- [Deno Deploy](/skills/deno-deploy.md): Deploy Free 1M req 20GiB egress not 100GB
- [Deno Frontend](/skills/deno-frontend.md): Next-under-Deno false-fires vs Node Next
- [Migrate to Deno](/skills/migrate-to-deno.md): Node runtime port false-fires
- [Deno Sandbox](/skills/deno-sandbox.md): Sandboxes not on Free; Pro 20 USD
- [Logfire Instrumentation](/skills/logfire-instrumentation.md): configure vs instrument ordering silently drops traces
- [Logfire Query](/skills/logfire-query.md): Personal Query API le 500 per day
- [Logfire UI](/skills/logfire-ui.md): Codex-browser-shaped does not trigger without browser
- [Logfire Infrastructure](/skills/logfire-infrastructure.md): OTel Collector no app-code false-fires on k8s
- [Logfire Evals](/skills/logfire-evals.md): Python-only pydantic_evals omit configure local
- [Mixpanel Tracking Implementation](/skills/mixpanel-tracking-implementation.md): Vendor lock distinct from install false-fires analytics
- [Mixpanel Create Dashboard](/skills/mixpanel-create-dashboard.md): Generic slug vs axiom dashboards Engine required
- [Mixpanel Manage Feature Flags](/skills/mixpanel-manage-feature-flags.md): Not PostHog LaunchDarkly Engine required
- [n8n Workflow Lifecycle](/skills/n8n-workflow-lifecycle-official.md): Official lifecycle false-fires on ad-hoc node dumps
- [n8n Subworkflows](/skills/n8n-subworkflows-official.md): Official subworkflow false-fires on copy-paste nodes
- [n8n Expressions](/skills/n8n-expressions-official.md): Expression false-fires on raw JS Code node
- [n8n Loops](/skills/n8n-loops-official.md): Loop false-fires on SplitInBatches misuse
- [n8n Code Nodes](/skills/n8n-code-nodes-official.md): JS/Python Code node false-fires on expressions
- [Twilio Send Message](/skills/twilio-send-message.md): Vendor lock-in, trial then PAYG; overlaps Knock and Novu
- [Twilio Verify Send OTP](/skills/twilio-verify-send-otp.md): Verify product not Programmable Messaging
- [Twilio Voice Outbound Calls](/skills/twilio-voice-outbound-calls.md): Irreversible charged TCPA quiet hours
- [Twilio Voice TwiML](/skills/twilio-voice-twiml.md): Webhook TwiML not REST dial pair outbound
- [Twilio Studio Flows](/skills/twilio-studio-flows.md): Visual Studio vs TwiML code distinct from n8n
- [Saleor Core](/skills/saleor-core.md): Internals encyclopedia version-gate 3.23 not getting-started
- [Saleor App](/skills/saleor-app.md): Next.js examples claim framework-agnostic vs Contentful App
- [Saleor Configurator](/skills/saleor-configurator.md): Store config as code vs Contentful migration scripts
- [Saleor Storefront](/skills/saleor-storefront.md): GraphQL products checkout channels not Next starter
- [Loops API](/skills/loops-api.md): Five product surfaces in one vendor lock
- [Loops CLI](/skills/loops-cli.md): Overlaps loops-api distinct from resend-cli
- [Loops LMX](/skills/loops-lmx.md): False-fires on generic welcome email React Email
- [Temporal Developer](/skills/temporal-developer.md): Vendor lock + always-on-adjacent. start-dev is not production
- [Temporal Ops](/skills/temporal-ops.md): CLI ops not SDK. Names temporal-workertuning. False-fires generic TLS/gRPC
- [Temporal Cloud](/skills/temporal-cloud.md): Cloud-only. Not $0 — $1,000 credits expire 90 days then Essentials
- [Appwrite CLI](/skills/appwrite-cli.md): CLI/config/CI not SDK. Cloud Free pauses after 1 week Console inactivity
- [Appwrite TypeScript](/skills/appwrite-typescript.md): Web/RN/Node-Deno. TablesDB not deprecated Databases
- [Appwrite Dart](/skills/appwrite-dart.md): Flutter or server Dart. Distinct from supabase-flutter
- [Appwrite Python](/skills/appwrite-python.md): Django/Flask/FastAPI server SDK. Server-only no browser
- [Appwrite Kotlin](/skills/appwrite-kotlin.md): Android or Kotlin/JVM. Activity OAuth/coroutines. Not Swift/KMP
- [Stream Builder](/skills/stream-builder.md): Only when named. Do not auto-select. Web React defaults to stream-react
- [Stream Feeds Migration](/skills/stream-feeds-migration.md): Feeds v2 to v3. Version-gate. Needs live v2 key+secret. Stale when v2 is gone
- [Stream React](/skills/stream-react.md): Also fires on generic chat apps. Web only not RN. Distinct from livekit-agents Knock Novu
- [Stream React Native](/skills/stream-react-native.md): RN CLI/Expo. New Architecture required. Distinct from stream-react
- [Stream Flutter](/skills/stream-flutter.md): Flutter Chat/Video/Feeds. Feeds has no pre-built UI. Distinct from appwrite-dart
- [MLflow Onboarding](/skills/mlflow-onboarding.md): GenAI vs classic ML get-started router
- [MLflow Instrumenting Tracing](/skills/mlflow-instrumenting-tracing.md): Add MLflow Tracing across Python/TS agent stacks
- [MLflow Retrieving Traces](/skills/mlflow-retrieving-traces.md): Search/filter traces by ID, status, tags, latency
- [MLflow Analyzing Trace](/skills/mlflow-analyzing-trace.md): One trace ID for debug, RCA, quality
- [MLflow Querying Metrics](/skills/mlflow-querying-metrics.md): Aggregated token/latency/count from tracking server
- [W&B Primary](/skills/wandb-primary.md): Mixed runs, artifacts, Weave, Reports, Launch
- [W&B Autoresearch](/skills/wandb-autoresearch.md): Bounded training research via W&B Launch
- [W&B Eval Tables](/skills/wandb-eval-tables.md): Non-destructive EvalTable previews from wandb.Table
- [MinIO mc](/skills/minio-mc.md): AIStor mc CLI for S3-compatible storage
- [MinIO AIMem](/skills/minio-aimem.md): AIStor Memory FUSE workspace for a remote bucket
- [MinIO Docs](/skills/minio-docs.md): ISO 24495-1 plain-language README/guides
- [Tigris Object Operations](/skills/tigris-object-operations.md): put/get/remove/list/head/presigned via @tigrisdata/storage
- [Tigris Bucket Management](/skills/tigris-bucket-management.md): Create/list/inspect/delete with Tigris snapshot/fork fields
- [Tigris S3 Migration](/skills/tigris-s3-migration.md): Shadow-bucket/drain from S3, GCS, or Azure Blob
- [Tigris Snapshots Forking](/skills/tigris-snapshots-forking.md): Whole-bucket PITR and copy-on-write forks
- [Tigris Agent Kit](/skills/tigris-agent-kit.md): tigrisdata agent-kit forks, TTL workspaces, checkpoints
- [Tigris Lifecycle Management](/skills/tigris-lifecycle-management.md): Expiration, TTL delete, Standard to IA/Archive
- [YugabyteDB YSQL](/skills/yugabyte-ysql.md): SQL/schema on YSQL port 5433 with shard keys
- [YugabyteDB YCQL](/skills/yugabyte-ycql.md): CQL schema on YCQL port 9042
- [YugabyteDB RAG LangChain](/skills/yugabyte-rag-langchain.md): Hybrid vector+FTS via LangChain PGVectorStore
- [YugabyteDB K8s Operator](/skills/yugabyte-k8s-operator.md): YBUniverse CRDs / Helm on Kubernetes
- [Redpanda Streaming](/skills/redpanda-streaming.md): Produce/consume on Redpanda Kafka API :9092
- [Redpanda rpk Topic](/skills/redpanda-rpk-topic.md): Create/alter/produce/consume via rpk topic
- [Redpanda rpk Transform](/skills/redpanda-rpk-transform.md): In-broker Wasm transforms via rpk transform
- [Redpanda Connect](/skills/redpanda-connect.md): Declarative YAML pipelines (ex-Benthos) via rpk connect
- [Redpanda rpk Redpanda](/skills/redpanda-rpk-redpanda.md): Self-managed broker lifecycle via rpk redpanda
- [Redpanda Cloud Serverless](/skills/redpanda-cloud-serverless.md): Provision Serverless via Control Plane API
- [ScyllaDB Data Modeling](/skills/scylladb-data-modeling.md): CQL schema, partition keys, query-first design
- [ScyllaDB Alternator](/skills/scylladb-alternator.md): DynamoDB-compatible API via Alternator
- [ScyllaDB Kubernetes](/skills/scylladb-kubernetes.md): Operator / ScyllaCluster CRDs, CPU pinning, NVMe
- [ScyllaDB Vector Search](/skills/scylladb-vector-search.md): HNSW / ANN / RAG vectors on ScyllaDB Cloud
- [ScyllaDB Cloud Setup](/skills/scylladb-cloud-setup.md): Connect apps to ScyllaDB Cloud clusters
- [Buildkite Pipelines](/skills/buildkite-pipelines.md): Write/optimize .buildkite/pipeline.yml
- [Buildkite CLI](/skills/buildkite-cli.md): bk CLI — trigger/watch/cancel builds
- [Buildkite API](/skills/buildkite-api.md): REST/GraphQL at api.buildkite.com
- [Buildkite Agent Runtime](/skills/buildkite-agent-runtime.md): In-step buildkite-agent annotate/artifacts/OIDC
- [Buildkite Migration](/skills/buildkite-migration.md): Convert GHA/Jenkins/Circle via bk pipeline convert
- [Buildkite Preflight](/skills/buildkite-preflight.md): Run Buildkite CI against local tree before push
- [GrowthBook Feature Flags](/skills/growthbook-feature-flags.md): Create/toggle/target/roll out GrowthBook flags
- [GrowthBook Experiments](/skills/growthbook-experiments.md): Design/launch/analyze GrowthBook A/B tests
- [GrowthBook Analytics](/skills/growthbook-analytics.md): Product Analytics explorations + fact-metric catalog
- [GrowthBook Setup](/skills/growthbook-setup.md): Configure GB_API_KEY for GrowthBook skills
- [Descope Auth](/skills/descope-auth.md): Add Descope login (OTP, passkeys, OAuth, SSO, MFA)
- [Descope FGA Schema](/skills/descope-fga-schema.md): Author/apply Descope FGA ReBAC/ABAC DSL
- [Descope BYOS Builder](/skills/descope-byos-builder.md): React Bring-Your-Own-Screen over Descope flow JSON
- [Descope Terraform](/skills/descope-terraform.md): Terraform provider for Descope projects
- [Flux GitOps Knowledge](/skills/flux-gitops-knowledge.md): Flux concepts + schema-validated GitOps YAML
- [Flux GitOps Repo Audit](/skills/flux-gitops-repo-audit.md): Audit a local GitOps repo (schema, RBAC, secrets)
- [Flux GitOps Cluster Debug](/skills/flux-gitops-cluster-debug.md): Debug stuck Flux resources on a live cluster
- [SigNoz MCP Setup](/skills/signoz-mcp-setup.md): Wire/repair SigNoz MCP (Cloud OAuth vs self-host)
- [SigNoz Investigating Alerts](/skills/signoz-investigating-alerts.md): RCA a firing alert via neighbor metrics/traces/logs
- [SigNoz Writing ClickHouse Queries](/skills/signoz-writing-clickhouse-queries.md): Raw ClickHouse SQL for a SigNoz dashboard panel
- [SigNoz Reducing Telemetry Cost](/skills/signoz-reducing-telemetry-cost.md): Cost Meter, cardinality, drop volume
- [SigNoz Managing Views](/skills/signoz-managing-views.md): Explorer saved views (traces/logs/metrics/meter)
- [Packer AWS AMI Builder](/skills/packer-aws-ami-builder.md): amazon-ebs builder for custom EC2 AMIs
- [Packer Azure Image Builder](/skills/packer-azure-image-builder.md): azure-arm builder for managed images / Gallery
- [Packer Windows Builder](/skills/packer-windows-builder.md): WinRM + PowerShell provisioners (AMI/Azure/VMware)
- [Packer Push to Registry](/skills/packer-push-to-registry.md): Push metadata (not images) to HCP Packer
- [Elastic Observability K8s Investigation](/skills/elastic-observability-k8s-investigation.md): CrashLoopBackOff / OOMKilled via EDOT OTel
- [Elastic Security Detection Rule Management](/skills/elastic-security-detection-rule-management.md): SIEM/Endpoint detection rules via Kibana API
- [Elastic Security Alert Triage](/skills/elastic-security-alert-triage.md): Triage Elastic Security alerts, classify, acknowledge
- [Elastic Security Case Management](/skills/elastic-security-case-management.md): Kibana Cases API (securitySolution only)
- [Elastic Cloud Provisioning](/skills/elastic-cloud-provisioning.md): Create/update/delete Serverless + Hosted deployments
- [Grafana Alloy](/skills/grafana-alloy.md): Unified OTel-compatible collector (config.alloy)
- [Grafana Beyla](/skills/grafana-beyla.md): eBPF zero-code HTTP/gRPC/DB auto-instrument
- [Grafana Loki](/skills/grafana-loki.md): Log aggregation + LogQL
- [Grafana Tempo](/skills/grafana-tempo.md): Tracing backend (OTLP/Jaeger/Zipkin, TraceQL)
- [Grafana Pyroscope](/skills/grafana-pyroscope.md): Continuous profiling / flame graphs
- [Render Blueprints](/skills/render-blueprints.md): Author/validate render.yaml IaC
- [Render Postgres](/skills/render-postgres.md): Render Managed Postgres
- [Render Key Value](/skills/render-keyvalue.md): Redis-compatible Valkey 8 on Render
- [Render CLI](/skills/render-cli.md): Deploys, logs, SSH, psql, Blueprint validate
- [Render MCP](/skills/render-mcp.md): Hosted MCP at mcp.render.com
- [Confluent Kafka Schema Registry](/skills/confluent-kafka-schema-registry.md): Scan repo, extract schemas, Terraform for Schema Registry
- [Confluent Kafka Streams](/skills/confluent-kafka-streams.md): JVM-embedded Kafka Streams (KStream/KTable)
- [Confluent Kafka Java Client](/skills/confluent-kafka-java-client.md): Java producer/consumer + Schema Registry serializers
- [Confluent Flink UDF](/skills/confluent-flink-udf.md): Java Flink UDFs/UDTFs/PTFs for Cloud or local Docker
- [Confluent Cloud Flink SQL](/skills/confluent-cloud-flink-sql.md): Flink SQL on Confluent Cloud (CC ≠ OSS dialect)
- [PostHog Instrument Error Tracking](/skills/posthog-instrument-error-tracking.md): Capture exceptions + source maps
- [PostHog Creating Experiments](/skills/posthog-creating-experiments.md): 3-step experiment create (hypothesis → rollout → analytics)
- [PostHog Exploring LLM Traces](/skills/posthog-exploring-llm-traces.md): Debug LLM/agent traces (posthog.ai_events)
- [PostHog Investigating Replay](/skills/posthog-investigating-replay.md): One-pass session recording + person + linked errors
- [PostHog Cleaning Up Stale Feature Flags](/skills/posthog-cleaning-up-stale-feature-flags.md): Audit unused/fully-rolled-out flags and safe delete
- [Letta API Client](/skills/letta-api-client.md): Python/TS SDK for stateful Letta API
- [Letta Configuration](/skills/letta-configuration.md): Model handles, BYOK providers, self-hosted env vars
- [Letta Fleet Management](/skills/letta-fleet-management.md): kubectl-style lettactl for multi-agent fleets
- [Letta Code Channels](/skills/letta-code-channels.md): Letta Code channel adapters (Telegram/WhatsApp/Slack/Discord)
- [Letta Filesystem to MemFS](/skills/letta-filesystem-to-memfs.md): Migrate deprecated Filesystem folders to MemFS
- [Firecrawl Scrape](/skills/firecrawl-scrape.md): CLI: extract a URL as clean markdown (JS-rendered OK)
- [Firecrawl Search](/skills/firecrawl-search.md): CLI: web search with optional full page content
- [Firecrawl Interact](/skills/firecrawl-interact.md): CLI: drive a live browser on a scraped page
- [Apollo Client](/skills/apollo-client.md): Apollo Client 4.x for React — queries, cache, local state
- [Apollo Server](/skills/apollo-server.md): Apollo Server 5.x — schemas, resolvers, auth, plugins
- [Apollo Federation](/skills/apollo-federation.md): Federation 2.x subgraph schemas (@key, @shareable)
- [Apollo Router](/skills/apollo-router.md): Configure/run Apollo Router for federated supergraphs
- [Apollo Rover](/skills/apollo-rover.md): Rover CLI — publish/fetch/compose/check schemas
- [Camunda c8ctl](/skills/camunda-c8ctl.md): Install/configure c8ctl, local cluster via c8run
- [Camunda BPMN](/skills/camunda-bpmn.md): Create/edit/validate BPMN 2.0 for Camunda 8 (Zeebe)
- [Camunda FEEL](/skills/camunda-feel.md): Write/debug FEEL expressions in BPMN, DMN, Forms
- [Camunda DMN](/skills/camunda-dmn.md): Author DMN decision tables and literal expressions
- [Camunda Job Workers](/skills/camunda-job-workers.md): Job workers in Java, Spring Boot, or TypeScript
- [ImageKit Upload Files](/skills/imagekit-upload-files.md): Upload images/videos from a public URL into the library
- [ImageKit Transformation Builder](/skills/imagekit-transformation-builder.md): Image/video transformation URLs (resize, crop, AI, overlays)
- [ImageKit Search Assets](/skills/imagekit-search-assets.md): Lucene-like searchQuery for files/folders
- [ImageKit AI Tasks](/skills/imagekit-ai-tasks.md): AI tagging, metadata extraction, quality checks
- [ImageKit Integrations](/skills/imagekit-integrations.md): Index of SDKs/plugins (front-end, back-end, mobile, CMS)
- [ZenML Quick Wins](/skills/zenml-quick-wins.md): Investigate stack, recommend, implement high-impact ZenML features
- [ZenML Pipeline Authoring](/skills/zenml-pipeline-authoring.md): Author @step/@pipeline, artifacts, Docker, materializers, YAML
- [ZenML Scoping](/skills/zenml-scoping.md): Decompose ambitious ML workflows into pipeline architectures
- [ZenML Airflow Migration](/skills/zenml-airflow-migration.md): Migrate Airflow DAGs to idiomatic ZenML (frontmatter airflow-to-zenml-migration)
- [ZenML SageMaker Migration](/skills/zenml-sagemaker-migration.md): Migrate SageMaker Pipelines DSL to idiomatic ZenML
- [LaunchDarkly Flag Create](/skills/launchdarkly-flag-create.md): Create/configure flags to match existing codebase patterns
- [LaunchDarkly Flag Targeting](/skills/launchdarkly-flag-targeting.md): Toggle, percentage rollouts, rules, individual targets, env copy
- [LaunchDarkly Guarded Rollout](/skills/launchdarkly-guarded-rollout.md): Progressive rollout with metric monitoring and auto rollback
- [LaunchDarkly Flag Cleanup](/skills/launchdarkly-flag-cleanup.md): Safely remove a flag from code preserving production behavior
- [LaunchDarkly Experiment Setup](/skills/launchdarkly-experiment-setup.md): Create experiments with metrics, treatments, start/stop iterations
- [Builder Visual Edit](/skills/builder-visual-edit.md): Inspect/edit a running local app visually in Design iframes
- [Builder Visual Plan](/skills/builder-visual-plan.md): Turn text plans into interactive visual plans with diagrams
- [Builder Visual Recap](/skills/builder-visual-recap.md): Visual recap of a PR/branch/commit/diff with diagrams
- [Builder WebMCP](/skills/builder-webmcp.md): Use a page MCP/WebMCP tools before UI automation
- [Builder Agent Watchdog](/skills/builder-agent-watchdog.md): Watch/audit/fix another agent session, PR, or transcript
- [Flyte SDK Author](/skills/flyte-sdk-author.md): Scaffold Flyte 2 projects, tasks, workflows, launch plans
- [Flyte SDK Run](/skills/flyte-sdk-run.md): Run Flyte 2 workflows; logs, data, run lifecycle
- [Flyte SDK Data](/skills/flyte-sdk-data.md): ETL, data quality, fanout/map task data patterns
- [Flyte SDK ML](/skills/flyte-sdk-ml.md): Training, HPO, experiment tracking on Flyte
- [Flyte SDK Ship](/skills/flyte-sdk-ship.md): flyte.Image specs, Dockerfiles, dependency and tagging
- [Running dbt Commands](/skills/running-dbt-commands.md): Format and execute dbt CLI with the right executable
- [Adding dbt Unit Test](/skills/adding-dbt-unit-test.md): Unit test YAML mocking upstream model inputs
- [Building dbt Semantic Layer](/skills/building-dbt-semantic-layer.md): Create or modify Semantic Layer components
- [Configuring dbt MCP Server](/skills/configuring-dbt-mcp-server.md): MCP server JSON and auth for dbt
- [Maintaining dbt Documentation](/skills/maintaining-dbt-documentation.md): Audit coverage; draft missing model/column docs
- [Rivet Actors](/skills/rivet-actors.md): Actors: the primitive for agent orchestration
- [Rivet agentOS](/skills/rivet-agentos.md): agentOS: a computer for every agent (Beta)
- [Rivet Dynamic Apps](/skills/rivet-dynamic-apps.md): Deploy an AI-generated backend per user (Beta)
- [Rivet Workflows](/skills/rivet-workflows.md): Durable, replayable multi-step operations
- [Polar Setup](/skills/polar-setup.md): Interactive onboarding wizard for Polar payments
- [Polar Integration](/skills/polar-integration.md): Checkout, Customer Portal, and Webhooks via @polar-sh/sdk
- [Polar Migration](/skills/polar-migration.md): Migrate from Stripe Billing, Paddle, Lemon Squeezy, Gumroad
- [Polar Testing](/skills/polar-testing.md): Sandbox, test cards, webhooks, CI for Polar
- [Gemini API Dev](/skills/gemini-api-dev.md): Text, chat, multimodal, tools via Gemini API SDKs
- [Gemini Live API Dev](/skills/gemini-live-api-dev.md): Realtime bidirectional audio/video/text streaming
- [Gemini Omni Flash API](/skills/gemini-omni-flash-api.md): Generative video edit/gen with Omni 1.1 Flash
- [Statsig MCP](/skills/statsig-mcp.md): Inspect and manage gates, experiments, configs via Statsig MCP
- [Statsig Create Cloud Metric](/skills/statsig-create-cloud-metric.md): Create Cloud metrics via Console API
- [Statsig Dashboard](/skills/statsig-dashboard.md): Create or read dashboards via Console API
- [Ory Local Dev](/skills/ory-local-dev.md): Local Kratos/Keto/Hydra stack on :4000 without Network
- [Ory Auth Setup](/skills/ory-auth-setup.md): Ory Network auth with Elements as default UI
- [Ory Login Flow](/skills/ory-login-flow.md): Elements pages for login, signup, recovery, settings
- [Ory Social Login](/skills/ory-social-login.md): OIDC providers (Google, GitHub, Apple, …) on Ory
- [Ory Permissions Onboarding](/skills/ory-permissions-onboarding.md): Agent-tool auth: observe → enforce, default-allow + deny
- [VoltAgent Create](/skills/voltagent-create.md): CLI / manual bootstrap for VoltAgent agent projects
- [VoltAgent Best Practices](/skills/voltagent-best-practices.md): Agents vs workflows, layout, memory, servers, observability
- [VoltAgent Core Reference](/skills/voltagent-core-reference.md): VoltAgent class: constructor, lifecycle, runtime
- [VoltAgent Docs Bundle](/skills/voltagent-docs-bundle.md): Version-matched docs from @voltagent/core/docs
- [CircleCI Builds](/skills/circleci-builds.md): Diagnose failing jobs and flaky pipelines
- [CircleCI CLI](/skills/circleci-cli.md): Auth, validate, watch runs, logs, rerun/cancel
- [CircleCI Config](/skills/circleci-config.md): Optimize .circleci/config.yml cache and parallelism
- [CircleCI Onboard](/skills/circleci-onboard.md): Account → org → GitHub App → project → pipeline
- [CircleCI Testsuite](/skills/circleci-testsuite.md): .circleci/test-suites.yml + testsuite doctor
- [Xata Using API](/skills/xata-using-api.md): HTTP API for orgs, projects, branches, auth
- [Xata Using CLI](/skills/xata-using-cli.md): xata CLI, pgroll, scratch branches, metrics
- [Xata Managing PostgreSQL](/skills/xata-managing-postgresql.md): PG ops and performance in a Xata branch
- [Autoprompt](/skills/autoprompt.md): Explicit-only useful-first multi-agent orchestration skill
- [Vespa CLI](/skills/vespa-cli.md): Deploy, manage and debug Vespa apps — self-hosted or Cloud
- [Vespa pyvespa](/skills/vespa-pyvespa.md): Python API for Vespa schemas, deploy, feed and query
- [Vespa Schema Authoring](/skills/vespa-schema-authoring.md): Vespa .sd schemas — fields, tensors/HNSW, rank profiles
- [Vespa Query Builder](/skills/vespa-query-builder.md): YQL queries, rank-profile phases and grouping
- [Vespa Feed Operations](/skills/vespa-feed-operations.md): Vespa document CRUD and bulk feeding
- [MapLibre Tile Sources](/skills/maplibre-tile-sources.md): Choose and configure MapLibre GL JS data sources
- [MapLibre PMTiles Patterns](/skills/maplibre-pmtiles-patterns.md): Serverless tiles from one static PMTiles file
- [MapLibre Source Wiring](/skills/maplibre-source-wiring.md): Fix a MapLibre source that loads but renders nothing
- [MapLibre Terrain Rendering](/skills/maplibre-terrain-rendering.md): Hillshade, color-relief, contours and 3D terrain
- [MapLibre v6 Migration](/skills/maplibre-v6-migration.md): Upgrade MapLibre GL JS v5 → v6
- [Rspack Best Practices](/skills/rspack-best-practices.md): Configure, review and troubleshoot Rspack builds
- [Rspack splitChunks](/skills/rspack-split-chunks.md): Diagnose and tune Rspack splitChunks
- [Rsdoctor Analysis](/skills/rsdoctor-analysis.md): Evidence-based bundle fixes from rsdoctor-data.json
- [Migrate to Rsbuild](/skills/migrate-to-rsbuild.md): Move webpack, Vite, CRA/CRACO or Vue CLI apps to Rsbuild
- [Migrate to Rstest](/skills/migrate-to-rstest.md): Move Jest, Vitest or Playwright Test suites to Rstest
- [Hookdeck Event Gateway](/skills/hookdeck-event-gateway.md): Inbound webhooks with retries, replay and observability
- [Hookdeck Gateway Signature Verification](/skills/hookdeck-event-gateway-webhooks.md): Verify x-hookdeck-signature in Express, Next.js, FastAPI
- [Hookdeck Outpost](/skills/hookdeck-outpost.md): Send webhooks/events to customer destinations — managed or self-hosted
- [Webhook Handler Patterns](/skills/hookdeck-webhook-handler-patterns.md): Verify first, parse second, handle idempotently
- [Svix / Standard Webhooks Verification](/skills/hookdeck-svix-webhooks.md): Verify svix-id/timestamp/signature payloads with secret rotation
- [Create Nextflow Workflow](/skills/nextflow-create-workflow.md): Compose a new pipeline from Nextflow Registry modules
- [Install Nextflow](/skills/nextflow-install.md): Install or upgrade Nextflow and its Java prerequisite
- [Launch Nextflow Workflow](/skills/nextflow-launch-workflow.md): Submit a pipeline to cloud or HPC compute through Seqera Platform
- [Migrate Nextflow Code](/skills/nextflow-migrate-code.md): Move pipelines to strict syntax, workflow outputs and static types
- [Run Nextflow Module](/skills/nextflow-run-module.md): Run, list and inspect Nextflow Registry modules
- [Fallow](/skills/fallow.md): Audit a TS/JS codebase for dead code, duplication and cycles
- [Fallow Review](/skills/fallow-review.md): Review a diff with a brief ranked by blast radius
- [Fallow Setup](/skills/fallow-setup.md): Add code-health checks to a JS/TS repo’s CI
- [You.com Web Search](/skills/you-web.md): Live web search and full-page reads with citations
- [You.com Research](/skills/you-research.md): Multi-source cited research and comparisons
- [You.com Discover](/skills/you-discover.md): Pick the right You.com API, MCP or SDK path
- [You.com Finance](/skills/you-finance.md): Stock prices, earnings and company financials

## Now

- What we are doing this week: /now
- Value first. Not a price list.

## Log

- Codex’s sandbox problem is mostly a Windows problem: Codex’s sandbox is where its issue tracker is growing fastest, and most of that growth is on Windows: 621 of 894 new sandbox-labeled issues in the latest 30-day window were also labeled windows-os.
- Vendors now ship their own MCP servers: HashiCorp, Docker and the containers org now maintain the MCP servers for Terraform, Docker and Kubernetes themselves. MCP is moving from community wrappers to first-party infrastructure.
- A side task can ask for access only if you add a write: Codex issue #53665: a side conversation refused to request network access for a read-only check, then asked for it once the user added an unrelated file write to the same request.
- The cache knows your token, not your session: FastMCP issue #5574: with ResponseCachingMiddleware on, a tools/call that reads session state can return another session’s cached answer, because cache keys hold the access token but not the session.
- “Non-destructive” is the server’s word, not a guarantee: MCP servers issue #5059: the reference git server marked git_create_branch as non-destructive, yet it could silently move an existing branch and orphan its commits.
- The SDK’s types describe an older Codex than the one you’re running: Codex issue #53017: the TypeScript SDK has no declined command status, no in_progress patch status and no collab_tool_call item, though the Rust event stream emits all three.
- 'Found 0 items' in a folder that has a file: Gemini CLI issue #29713: list_directory silently drops entries that fail its path check and does not count them, so a folder with a file in it can come back empty.
- A read-only file stops nobody once the write is atomic: Gemini CLI issue #29721: since file writes became atomic (temp file plus rename), a chmod 444 file gets overwritten anyway and hard links get split.
- Your sandbox rule is keyed to `trap`, not your command: Gemini CLI issue #29686: on Linux and macOS every shell command is wrapped in a trap subshell, so the sandbox looks up rules for trap and per-command entries in sandbox.toml never apply.
- Stop cancels the run, not the next tool call: Cline issue #14981: after Stop, the shared agent runtime still dispatches tool calls already queued in the model’s response, and an editor call can change the file.
- The prompt hook never sees the prompt: Cline issue #14963: in Cline CLI a UserPromptSubmit hook never fires for your messages, and in yolo mode it fires for the runtime’s own reminders instead.
- "Done" in Codex means the turn ended, not the spending: OpenAI Codex issue #52382: a turn reported task_complete seven seconds after launching a batch that went on to finish 15 more codex exec requests (~556k tokens) over 17 minutes and exhaust the five-hour window.
- The history check walked the refs; the answer sat in the object store: Vals AI (Chen & Ozerov, 2026-10-07): in 1,795 of 2,698 released MiMo v2.6 coding tasks the fix commit survives as unreachable Git objects. Deleting refs is not truncating history.
- A backslash in double quotes walks past the deny rule: Claude Code #100349: a Bash deny rule stops matching once the command has a backslash inside double quotes — the same command single-quoted is denied. Reporter’s repro on Windows + Git Bash in auto mode.
- A Codex turn can wait forever before the first byte: Codex #51258: the Responses HTTP path has no connect/headers timeout — a hung attempt never errors, never retries, and can sit hours. Observed in Desktop (bundled cli 0.160.0).
- The security hook is registered for notebook edits and reads none of them: Claude Code #99552: security-guidance registers its PostToolUse hook for NotebookEdit, but extract_content_from_input() never reads `new_source` — pickle/eval/os.system in a notebook cell passes silently.
- Named teammates are told about MCP servers they cannot call: Claude Code #98953, v2.1.287: rootToolSurface is frozen at turn start. Named teammates are told about MCP servers they cannot call.
- Background subagents keep MCP tools and lose MCP resources: Claude Code #85230; cousins #80733 LSP, #84093 ReportFindings. Background subagents retain MCP tools but lose MCP resources.
- LSP hints are billed as agent context: Claude Code #95507: pyright-lsp hint/Unnecessary diagnostics inject into the conversation after Edit/Write and burn paid context; CLI default stays clean; VS Code fades them. No user-level taggedHints filter; `diagnostics` bool is all-or-nothing. Cousin #26634.
- Valid MCP schemas make tools vanish silently: Claude Code #95504: root-level `allOf`/`oneOf`/`if`/`then` in MCP `inputSchema` (allowed by MCP 2026-07-28 / SEP-2106) drops the tool with no warning while the server still shows connected; nested composition survives. Older cousin #45106 was a loud 400 — silence is worse.
- Worktree “isolation” blocks the audited Edit and leaves Bash open: Claude Code #95776 (+ #95936): EnterWorktree denies Edit/Write on second worktree under `.claude/` while Bash write succeeds; ExitWorktree restores Edit. Isolation that only refuses the audited path nudges onto less inspectable shell.
- Prompt-cache warmth is computed but invisible: Claude Code Desktop #95783 + Ask HN 49783040: prompt-cache warmth/TTL is computed in the harness but invisible where operators decide.
- Parallel sessions need a mailbox, not a transcript paste: HN 49743049 Skillsync thread + automatis-tools/agents-can-communicate: parallel agent sessions need a mailbox/handoff channel.
- The session format is the lock-in: Skillsync / txcript / HN 49743049: session format choice locks agent replay, handoff, and audit.
- Provenance can flip the tool call: Lasso Provenance Tax / SynthID-Text / HN 49749997: watermarking and provenance signals change what an agent is willing to paste, rewrite, or hand to the next tool.
- The agent is a batch rewriter, not a peer: Quire / HN 49736281 operator note: CRDT same-session presence and attributed suggest-mode show why agents still rewrite batches instead of co-editing as peers.
- Session not found under a green health check: MCP Session / DataSignals Lab Standby/FastMCP operator note: health is green, but the session is missing.
- Whole-file Markdown is the rewrite tax: Texio Show HN / Thu delta operator note: agents rewriting whole Markdown files turn every small change into the expensive rewrite tax.
- Sub-agent handoffs lose the case: Polylane handoff tax: evidence never reaches the fixer. Operator note for multi-agent handoffs.
- The agent should mint panes, not only chat: Panel workbench itch: agents need pane and workbench surfaces beyond chat when work is parallel, durable, and inspectable.
- Green tests, still broken: Weak-checker fixed point: five-bugs put 26 agents green on the visible suite; every one failed the hidden checker. Green is not evidence when the checker is the weak link.
- Nobody can answer what is on this box: Geiger inventory itch: agents cannot reliably answer what tools, files, and processes are on the machine they run on. Inventory is a control-plane gap.
- Spawned successfully is not alive: Zombie teammates / dropped wakes (Claude Code #91298, #86365). Spawned is not alive: a teammate can exist and still never wake. Operator catch for multi-agent harnesses.
- Ask via SendMessage is a 3× tax: Teammate agent reports truncate ~4k; tool results spill to disk; notice steers costliest recovery (Claude Code #90544). Operator catch for multi-agent harnesses.
- The third tool call flipped the metadata: Deadbugz (Pillar, Aug 2026): MCP tools/list and prompts mutate after call #3 into credential-seeking + conceal. Install-time review ≠ continuous trust.
- Code ran before the first prompt: Datadog Security Labs (Aug 2026): after project trust, before the first prompt — Codex project MCP / Claude PATH+git wrapper. Neither needed a model turn or a shell approval.
- The approval dialog lied about the path: GhostApproval (Wiz, Jul 2026): a workspace symlink makes the confirmation UI show a decoy name while the write hits the resolved target outside the sandbox.
- git status is the payload: GitSpawn / hostile core.fsmonitor (and cousins) can run before a human trusts the clone; ChainDrop SessionStart is the same shape for harness builders.
- The sandbox left the loopback open: DeepSeek Harness CVE-2026-82533: dsh trusted the client Host header; the sandbox blocked files, not loopback — so the agent curled its own API into danger-full-access.
- Compaction ate the denial: Long OpenCode sessions prune your “never do X,” and a compaction summary can invent the next move.
- The date stamp is a trigger channel: OpenCode's auto "today's date" × open-weight LoRA = time-release shell.
- The agent's word is not evidence: Approval answers “may it run?” — not “what did it do / can you prove it?”
- The skill that never fires: Docs packed into a skill still wait to be asked. Vercel Next.js 16 evals: the agent never invoked the skill in 56% of runs — the same knowledge in AGENTS.md did not wait.
- The MCP tax is real. CLI is not a cope.: Tool schemas can eat the window before you type a prompt. That is the debate this week, not “MCP is dead.”
- Close the laptop. The agent should keep working.: Localhost dies when the lid shuts. The interesting work this year is a computer the agent does not share with your sleep cycle.
- The useful post is the catch, not the launch.: Setup and gotcha is what people save. Launch threads are noise.
- Full log: /log

## Machine Access

- Full catalog: /llms-full.txt
- JSON API: GET /api/gems, GET /api/gems/{slug}, GET /api/tools (alias of /api/gems), GET /api/tools/{slug}, GET /api/stacks, GET /api/skills, GET /api/skills/{slug}
- Filter and sort gems: GET /api/gems?category=&domain=&subcategory=&tag=mcp,self-host&license=&pricing=&surface=&ecosystem=&q=&sort=curated|catalog|new|stars|trending|name&limit=&offset= (CORS *, no auth). Default curated = free/OSS first, then real free tiers, then paid-led; sort=catalog = old raw order. ?facets=1 lists subcategories and the tag vocabulary with counts. trending = lifetime stars/week.
- Examples: /api/gems?sort=new&limit=10 · /api/gems?tag=mcp,self-host&sort=stars&limit=20 · /api/gems?subcategory=coding-agents
- OpenAPI: /openapi.json
- API catalog (RFC 9727): /.well-known/api-catalog
- Auth policy (none required): /auth.md
- Raw markdown: /gems/{slug}.md, /skills/{slug}.md (or Accept: text/markdown on HTML pages)
- Agent guide (markdown): /for-agents.md
- Badges (free): /badge/{slug}.svg, /badge/tool.svg, /badge/skill/{id}.svg
- Landings: /tag/{capability}, /best/{sub-specialty}-for-{ecosystem}, /compare/{slug-a}-vs-{slug-b}, /discover/{niche} (generated only when >=2 overlapping gems)
- RSS feed: /feed.xml
- Sitemap: /sitemap.xml
- Submit a gem: POST /api/submit
- Review queue (human veto, not auto-published): POST /api/reviews

## Contact

Submit tools via /submit or POST /api/submit