# eDiscovery Decoder

> Agent-ranked eDiscovery AI news, technology-assisted review (TAR) calculators, a TAR glossary, and a curated reference library. Educational material, not legal advice.

TAR calculations and news are available to agents through a free, read-only MCP server at https://mcp.ediscoverydecoder.com/mcp (no login). See the MCP server setup page for supported tools.

## Calculators
- [eDiscovery prevalence and sample results calculator](https://ediscoverydecoder.com/calculators/prevalence-results/): Estimate prevalence, confidence bounds, responsive volume, and review burden from an eDiscovery random sample.
- [Elusion and recall calculator](https://ediscoverydecoder.com/calculators/elusion-recall/): Estimate elusion, remaining responsive material, and recall from validation sample results.
- [Richness and yield calculator](https://ediscoverydecoder.com/calculators/richness-yield/): Estimate collection richness, projected responsive volume, and review yield from reviewed results.
- [Precision, recall, and F1 calculator](https://ediscoverydecoder.com/calculators/precision-recall-f1/): Calculate precision, recall, and F1 from true-positive, false-positive, and false-negative counts.
- [Control-set recall calculator](https://ediscoverydecoder.com/calculators/control-recall/): Validate recall against the responsive portion of a control set and communicate the result clearly.
- [Culling impact calculator](https://ediscoverydecoder.com/calculators/culling-impact/): Compare non-responsive removal with responsive loss to evaluate the selectivity of a culling decision.

## Reference
- [TAR glossary](https://ediscoverydecoder.com/glossary/): 26 plain-language definitions of TAR and validation terms.
- [Read Me First: TAR Primer](https://ediscoverydecoder.com/resources/tar-primer-readme/): A high-level primer for understanding what Technology-Assisted Review is, how the workflow moves from goals to validation, and how prediction scores and metrics should be interpreted before relying on TAR in a real matter.
- [Start Here: Additional Overview Resources](https://ediscoverydecoder.com/resources/start-here/): Use these after the primer when you want the primary overview materials behind the TAR workflow, including EDRM, FJC, and Grossman/Cormack resources.
- [Authoritative Guides & Standards](https://ediscoverydecoder.com/resources/authoritative-guides-standards/): Neutral or semi-neutral references users can rely on when learning TAR or building defensible workflows.
- [AI eDiscovery: Workflow Resources](https://ediscoverydecoder.com/resources/ai-ediscovery-workflow-resources/): Workflow-focused resources for connecting AI assistants to eDiscovery context, MCP servers, and legal plugin patterns while keeping human review, read-only defaults, and non-legal-advice boundaries visible.
- [AI in eDiscovery: Practical Governance Resources](https://ediscoverydecoder.com/resources/ai-in-ediscovery/): Resources for teams using generative AI, analytics, classifiers, or AI-assisted review features in litigation workflows.
- [Court Guidance & Case Law](https://ediscoverydecoder.com/resources/court-guidance-case-law/): Key decisions and legal themes users should understand before proposing or challenging TAR.
- [TAR Workflow Summary](https://ediscoverydecoder.com/resources/tar-workflow-summary/): A practical workflow map for users who need to understand what happens from collection through validation.
- [Validation, Metrics & Sampling](https://ediscoverydecoder.com/resources/validation-metrics-sampling/): Core measurements and quality-control concepts users need to understand before relying on TAR outputs.
- [Practical Checklists & Protocol Prompts](https://ediscoverydecoder.com/resources/practical-checklists/): Questions users can take into a Rule 26(f) conference, vendor selection meeting, or internal review planning session.
- [Vendor Education & Tool Documentation](https://ediscoverydecoder.com/resources/vendor-education-tool-docs/): Useful vendor resources when they explain concepts clearly. Prefer documentation and education over product-only marketing.
- [Glossary of Key Terms](https://ediscoverydecoder.com/resources/glossary-of-key-terms/): Plain-English terms for TAR, validation, AI-assisted review, and defensibility discussions.
- [FAQ: Common TAR & AI Questions](https://ediscoverydecoder.com/resources/faq-common-questions/): Short answers to questions users often ask before using TAR or AI-assisted review.
- [Quick Start Learning Path](https://ediscoverydecoder.com/resources/quick-start-learning-path/): A practical sequence for different user levels.
- [MCP server setup](https://ediscoverydecoder.com/mcp/): How to connect the read-only MCP server to Claude, Codex, Cursor, VS Code, or any MCP client.

## Blog
- [MCP, Legal Plugins, and Closing the Context Gap](https://ediscoverydecoder.com/blog/mcp-servers-in-ediscovery-closing-the-context-gap/): Model access alone is not enough. MCP and legal plugins connect an AI assistant to the matter context, permissions, and workflows your team already relies on.
- [Understanding Technology-Assisted Review: A Practitioner's Guide](https://ediscoverydecoder.com/blog/understanding-technology-assisted-review-a-practitioners-guide/): Machine learning has quietly rewritten the rules of document review. Here's what every legal professional needs to know before their next large-scale matter.

## News
- [News](https://ediscoverydecoder.com/news/): Original eDiscovery and AI reporting grounded in court records.
- [Delaware magistrate rejects unreliable AI citations in summary judgment recommendation](https://ediscoverydecoder.com/news/case-law-11053387/): The report declines to consider unverifiable citations and misquoted authority, then separately recommends judgment on the employment claims. Objections and district-court review remain available.
- [Second Circuit vacates Chanel costs award that included ESI hosting](https://ediscoverydecoder.com/news/case-law-11052473/): A nonprecedential order sends the $560,978.97 award back for a bill of costs and supporting evidence, without deciding which expenses ultimately qualify.
- [Delaware court defers spoliation sanctions decision until after trial](https://ediscoverydecoder.com/news/case-law-11051963/): Vice Chancellor Lori W. Will declined a pretrial hearing on alleged lost phone data, leaving culpability, prejudice and any adverse inference for the trial record.
- [Runway loses bid to dismiss YouTube creators’ anti-circumvention lawsuit](https://ediscoverydecoder.com/news/case-law-11051686/): A New York federal judge found that creators plausibly alleged bypassing YouTube access controls to obtain AI training videos. Liability remains unresolved.
- [Eleventh Circuit upholds denial of video-spoliation sanctions as premature](https://ediscoverydecoder.com/news/case-law-11049604/): In an unpublished employment-discrimination decision, the panel relied on the Northern District of Georgia’s discovery-start rule. It did not resolve whether the employer had destroyed the disputed footage.
- [Indiana appeals court warns against unchecked AI research after fictitious citation](https://ediscoverydecoder.com/news/case-law-11049276/): The panel admonished a self-represented litigant for citing a nonexistent case. It did not identify an AI tool or explain how that citation entered his brief.
- [Georgia court vacates phone-record spoliation sanctions, sends dispute back for reconsideration](https://ediscoverydecoder.com/news/case-law-11047666/): The Court of Appeals found that earlier communications were not preserved, but the record did not support treating pre-collision calls and texts on the crash date as lost evidence under the applicable standard.
- [D.C. court quashes part of Equifax subpoena after weighing million-report review burden](https://ediscoverydecoder.com/news/case-law-11048368/): Revco substantiated the burden of reviewing scattered reports, but failed to defeat a separate request for medical-debt account data after Equifax offered privacy protections.
- [Natera discovery-sanctions bid denied; personal-phone control remains unresolved](https://ediscoverydecoder.com/news/case-law-11047334/): A California magistrate judge found no established discovery-order violation or bad faith, while leaving open whether Natera controlled employees’ personal phones.
- [Washington appeals court upholds denial of spoliation relief over deleted clinical-note copy](https://ediscoverydecoder.com/news/case-law-11045945/): An unpublished opinion points to surviving copies, competing metadata evidence and the absence of proven bad faith or prejudice in a dispute over when records were created.
- [Texas appeals court flags suspected AI citation errors and finds briefing waiver](https://ediscoverydecoder.com/news/case-law-11045730/): The court identified fictitious or inaccurate authorities in a tenant’s brief; it separately vacated the possession judgment as moot and left unchallenged monetary awards intact.
- [Virginia judge finds prejudice from lost jail video but declines harsher sanctions](https://ediscoverydecoder.com/news/case-law-11044827/): A Rule 37(e) opinion sets out curative measures and motion fees after a preservation request, while finding intent to deprive was not sufficiently proved.
- [Google AI call-recording claims dismissed with leave to amend](https://ediscoverydecoder.com/news/case-law-11044202/): A California federal judge found consent and intent pleading gaps for three Home Depot callers; a separate order sent three other plaintiffs to arbitration.
- [Wisconsin judge rejects video hash challenge and spoliation request on jail-record evidence](https://ediscoverydecoder.com/news/case-law-11043711/): A federal judge accepted the defendants’ explanations for differences in produced jail videos and denied spoliation sanctions. The decision turned on the record, including the absence of demonstrated bad faith or prejudice.
- [Fifth Circuit orders reassignment after criticizing AI errors in Mississippi DEI case](https://ediscoverydecoder.com/news/case-law-11043586/): An appellate panel vacated a preliminary injunction and directed reassignment. The majority faulted fabricated facts and a nonexistent citation in trial-court orders, alongside errors in legal analysis.
- [Florida court warns of unauthorized practice over apparently AI-generated habeas petitions](https://ediscoverydecoder.com/news/case-law-11033681/): A Florida appellate court explained the dismissal of four unauthorized petitions, described apparent nonlawyer filing and warned that further unauthorized filings would prompt referrals for investigation.
- [Week in Review](https://ediscoverydecoder.com/week-in-review/): The ten highest-scoring eDiscovery AI stories of the last seven days, with links to the original reporting.
- [Home](https://ediscoverydecoder.com/): Today's ranked eDiscovery AI news brief.