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Cowork Legal Plugin

Connector Documents & Content Usable

In-house legal assistant with 5 commands: /review-contract, /triage-nda, /vendor-check, /brief, /respond. Reviews contracts against your company playbook, flags deviations with traffic-light ratings.

10,917 starsApache-2.0 (commercial OK)FreeNo code needed
Built and maintained by Anthropic, the makers of Claude.
Reviewed 2026/04 ·
Fair rating — This tool is functional but has notable gaps. Review the evaluation notes below before deploying.
Why it matters

Rated top-tier by Gradually.ai. Reed Smith LLP noted value in trademark practice for flagging playbook deviations and harmonizing cross-jurisdiction language. Real value is in quality of analysis, not just speed.

Best for

In-house legal teams, contract managers, compliance officers. Works with uploaded contract PDFs and Word docs. NOT a substitute for qualified legal counsel.

Works in
Claude Code Claude Cowork Claude Chat
Source

https://github.com/anthropics/knowledge-work-plugins

By Anthropic

How to Get It

Option 1: Claude Desktop AppOpen the Customize panel in the sidebar → browse connectors → search and add. Works in Claude Code, Claude Cowork, and Claude Chat.
Option 2: Paste into Claude CodeCopy the command below and paste it into a Claude Code conversation. Claude will run it for you.
Command
claude plugin install legal@knowledge-work-plugins

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

PrerequisitesClaude Cowork (Pro/Max/Team/Enterprise). NOT a substitute for qualified legal counsel.Time to functional~10 minCostFree — Requires Claude Pro ($20/mo) or higher

Trust Signals Source Reviewed

Stars10,917Contributors16Last updated2026-04-04LicenseApache-2.0 (OK for commercial use)Known CVEsNone found

Data & Access

Data processingProcessed by Anthropic (the makers of Claude)

Reviewer notes

Source Reviewed review. These are observations, not a security certification.

Anthropic-official. 6 skills. Needs data-handling review before recommending with sensitive contracts.

Anthropic-official knowledge-work-plugins repo. 10.8K stars. Connectors are account-scoped, not workspace-scoped (JJ Englert finding).

2026-04-02: REAL DATA: 5 commands (/review-contract, /triage-nda, /vendor-check, /brief, /respond), 6 skills. Connectors: Slack, Box, Egnyte, Microsoft 365, Atlassian. Reed Smith LLP reviewed it and found real value in flagging playbook deviations and cross-jurisdiction harmonization. Gradually.ai rated A-tier. The plugin is essentially high-quality system prompts and workflow maps — the value is in structured analysis, not magic.

2026-03-29: Connectors: Slack, Box, Egnyte, Jira, Microsoft 365. IMPORTANT: Not a substitute for qualified legal counsel. Official repo: https://github.com/anthropics/knowledge-work-plugins/tree/main/legal

2026-03-29: SECURITY FINDING (JJ Englert, Mar 2026): Cowork connectors are scoped at the Anthropic account level, NOT the workspace level. A connector added in one Cowork workspace is accessible in ALL workspaces under the same Anthropic account. This means: (1) connectors with sensitive access (email, calendar, CRM) bleed across all projects/workspaces; (2) multi-tenant setups sharing an Anthropic account are NOT isolated at the connector level; (3) evaluate connector blast radius across the full account, not just the workspace being configured. Source: https://github.com/JJenglert1/getting-started-with-claude-cowork

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation Scores

Evaluation

Ease of Use
3/5
Versatility
3/5
Reliability
4/5
Security
3/5
Overall score3.25 / 5.00 UsableEvaluatedApr 2026
Anthropic-official. 6 skills. Needs data-handling review before recommending with sensitive contracts.

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