claude-for-legal: Instructions file for Claude Code

CLAUDE.md

claude-for-legal CLAUDE.md is an instructions file for Claude Code from anthropics/claude-for-legal. It costs 1,479 tokens per session, scanned A, original, Apache-2.0.

A set of instructions for maintaining a Claude Code legal-plugin marketplace, including its files, plugin descriptions, and validation checks.

In plain words
What is it for?
Use it when editing legal-plugin skills, agents, hooks, metadata, marketplace files, or configuration in that repository.
Why use it?
It explains where marketplace and plugin content belongs and helps prevent invalid configuration or inconsistent entries.

Instructions file for Claude Code ✓ vendor

Written for Claude Code: Claude Code plugin machinery. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is anthropics/claude-for-legal's own configuration. It tells Claude Code how to work on claude-for-legal itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-for-legal configures →

About the project

Claude for Legal is a collection of AI agents, skills, and data connectors for legal work such as commercial, privacy, employment, litigation, regulatory, and intellectual-property matters. Lawyers and legal teams use it through Claude Cowork, Claude Code, or the Claude Managed Agents API, with attorney review required for every output. The catalogue entries are its workflow plugins, skills, agents, and connectors.

anthropics/claude-for-legal · 9,415 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to anthropics/claude-for-legal. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/anthropics/claude-for-legal/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/anthropics/claude-for-legal

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 1,479 This file is loaded in full into every session.
When invoked 1,479 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.01479 $0.01479
Opus 5 $0.00740 $0.00740
Sonnet 5 $0.00296 $0.00296
Haiku 4.5 $0.00148 $0.00148

Measured 12d ago against content hash b0251f3b2744, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

claude-for-legal CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for working on this repo. claude-for-legal is a Claude Code plugin marketplace — twelve first-party legal plugins, one vendor plugin, and five managed-agent cookbooks. Most work here is editing prompt content (skills, agents, hooks), plugin metadata, or cookbook config — not application code.

Layout

.claude-plugin/marketplace.json   # the marketplace manifest — one entry per plugin
<plugin>/                         # 12 first-party plugins (commercial-legal, privacy-legal, ...)
  .claude-plugin/plugin.json      # plugin manifest (name, version, description, author)
  .mcp.json                       # MCP servers the plugin connects to
  CLAUDE.md                       # practice-profile TEMPLATE (see "Plugin CLAUDE.md" below)
  README.md                       # per-plugin docs
  skills/<name>/SKILL.md          # one skill per directory
  agents/<name>.md                # subagent definitions
  hooks/hooks.json                # hook config (most plugins ship an empty stub)
  .gitignore
external_plugins/<vendor>/        # vendor-maintained plugins (CoCounsel)
managed-agent-cookbooks/<name>/   # CMA agent.yaml + subagents/ + steering-examples.json
scripts/                          # validate.py, lint-tool-scope.py, orchestrate.py,
                                  # deploy-managed-agent.sh, test-cookbooks.sh
references/                       # shared templates (company-profile, dashboard)

Validation — run before opening a PR

This repo follows the same conventions anthropics/claude-plugins-official enforces in CI. Run the equivalent checks locally:

# 1. Marketplace + per-plugin schema validation (source of truth)
claude plugin validate .claude-plugin/marketplace.json
for d in */; do [ -f "$d/.claude-plugin/plugin.json" ] && claude plugin validate "$d"; done
claude plugin validate external_plugins/cocounsel-legal

# 2. Cookbook tool-scope lint (orchestrators must not over-grant tools)
python3 scripts/lint-tool-scope.py

# 3. JSON/YAML sanity
python3 -c "import json,glob; [json.load(open(f)) for f in glob.glob('**/*.json', recursive=True)]"

Read the full file on GitHub · 131 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 131 lines · 1,479 tokens per session scan A b0251f3b2744

Subscribe to this mod's changes

claude-for-legal CLAUDE.md is an instructions file published in the GitHub repository anthropics/claude-for-legal (9,415 stars, last pushed 20d ago), licensed Apache-2.0. It adds 1,479 tokens to every session, about $0.0074 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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