> Brief a case in your preferred format. In drill-me mode, makes the student state the holding first. Use when the user says "brief [case]", "what's the holding in", "case brief", or pastes a case.
npx skills add https://github.com/anthropics/claude-for-legal --skill case-brief
~/.claude/plugins/config/claude-for-legal/law-student/CLAUDE.md → outline/brief preferences.A case brief is a tool for remembering what a case does. This skill makes one in your format — the format you'll actually use in your outline.
Case briefs state holdings, rules, and reasoning. Getting them wrong turns your outline into a false map. The rule for this skill:
[UNCERTAIN: specific reason], and I strongly recommend you confirm against the actual case before putting the brief in your outline. If I don't know the case well enough, I say so.[VERIFY: check your casebook and professor's framing].A brief built on my guess and your good faith is worse than no brief. Better to err toward "I'm not sure — read it yourself" than to invent.
~/.claude/plugins/config/claude-for-legal/law-student/CLAUDE.md → outline/brief preferences (format, depth), learning style.
A brief you didn't write is a brief you won't remember. Every mode of this skill defaults to scaffolding the student's brief-writing, not to writing the brief.
What this skill will do in every mode:
What this skill will not do, even if asked:
Exception (the only one): the student explicitly overrides — "I've read it three times, I'm stuck on phrasing the holding, just give me a starter sentence so I can rewrite it." Then write a minimal starter with [VERIFY] flags and prompt them to rewrite in their own words before it goes into an outline.
Drill-me mode: Ask the student to state the holding before anything else:
> "You've read this case. What's the holding? One sentence."
If they can't state it, make them read it again. The brief is a memory aid, not a substitute for reading. Then proceed to the scaffold — ask them to state facts, issue, reasoning, and rule in turn. Push back on thin or wrong statements.
Explain-to-me mode: Same scaffolded workflow, softer tone. The skill walks the student through each section, offers structural prompts ("a good holding is one sentence, yes/no + the rule"), but still waits for the student to write the content. Explain-to-me does not mean "write the brief for me." It means "explain what a good brief looks like, and guide me through writing mine."
If the student pastes the case text in either mode, the skill can extract the court's own language into the Facts/Holding/Reasoning slots — that's not writing-for-them, that's pointing at the source.
The skill produces the template with questions, not the filled-in brief. Student fills each section; skill reviews, pushes back, suggests what's missing.
Per the student's format in ~/.claude/plugins/config/claude-for-legal/law-student/CLAUDE.md. If none captured, default:
## [Case Name], [cite]
**Court:** [court, year]
**Facts:** [The facts that matter to the holding. Not every fact — the ones
the court relied on. Two to four sentences.]
**Procedural posture:** [How did this get here? Trial court ruled X, this
is an appeal from that. One sentence.]
**Issue:** [The question the court answered. Phrased as a yes/no question.]
**Holding:** [The answer. One sentence. Yes/no + the rule.]
**Reasoning:** [Why. The court's logic. This is where the law is. Three to
five sentences.]
**Rule:** [The rule you'd put in your outline. The portable takeaway.]
**Notes:** [Dissent worth knowing? Distinguishable on these facts? How
professor emphasized it?]
---
**Citation check.** The case cite, quoted language, and any supporting authority above were generated by an AI model and have not been verified. Before you rely on them — in a brief, memo, outline entry, or exam answer — look them up on Westlaw, CourtListener, or your school's research tool. AI-generated citations are sometimes fabricated or misquoted.
Per ~/.claude/plugins/config/claude-for-legal/law-student/CLAUDE.md — some students want one-line briefs (rule + cite), some want full treatment. Match their format.
If they're a 1L still learning to read cases: fuller briefs. If they're a 3L doing bar prep: rules only.
[UNCERTAIN] or [VERIFY]. Don't put a brief in your outline unless you've confirmed it against the actual case.Integration with protocols.io API for managing scientific protocols. This skill should be used when working with protocols.io to search, create, update, or publish protocols; manage protocol steps and materials; handle discussions and comments; organize workspaces; upload and manage files; or integrate protocols.io functionality into workflows. Applicable for protocol discovery, collaborative protocol development, experiment tracking, lab protocol management, and scientific documentation.
Analyzes job descriptions and generates tailored resumes that highlight relevant experience, skills, and achievements to maximize interview chances
Generate Excalidraw diagrams from natural language descriptions. Use when asked to "create a diagram", "make a flowchart", "visualize a process", "draw a system architecture", "create a mind map", or "generate an Excalidraw file". Supports flowcharts, relationship diagrams, mind maps, and system architecture diagrams. Outputs .excalidraw JSON files that can be opened directly in Excalidraw.
Build and distribute Expo development clients locally or via TestFlight
Use when you have a written implementation plan to execute in a separate session with review checkpoints
Data structure for annotated matrices in single-cell analysis. Use when working with .h5ad files or integrating with the scverse ecosystem. This is the data format skill—for analysis workflows use scanpy; for probabilistic models use scvi-tools; for population-scale queries use cellxgene-census.
Benchling R&D platform integration. Access registry (DNA, proteins), inventory, ELN entries, workflows via API, build Benchling Apps, query Data Warehouse, for lab data management automation.
Comprehensive molecular biology toolkit. Use for sequence manipulation, file parsing (FASTA/GenBank/PDB), phylogenetics, and programmatic NCBI/PubMed access (Bio.Entrez). Best for batch processing, custom bioinformatics pipelines, BLAST automation. For quick lookups use gget; for multi-service integration use bioservices.
Take anthropics/case-brief from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.