| FMRS | 69 / 100 · C | 80 / 100 · B | 79 / 100 · B |
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| Reliability | 10 / 20 | 14 / 20 | 12 / 20 |
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| Security and permissions | 13 / 20 | 16 / 20 | 16 / 20 |
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| Maintenance | 16 / 20 | 17 / 20 | 18 / 20 |
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| Documentation | 17 / 20 | 15 / 20 | 18 / 20 |
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| Setup experience | 13 / 20 | 18 / 20 | 15 / 20 |
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| Best for | - Large local repositories used with AI coding agents.
- Development teams that need change-impact analysis and safer refactoring.
- Projects requiring architecture governance, code health metrics, and audit evidence.
- Users who want local code analysis without API keys.
| - Developers using fast-moving frameworks/libraries worried about the AI suggesting stale code
- Scenarios wanting zero-config documentation lookup
| - Developers auditing NPM dependencies within AI workflows
- Teams performing supply chain security assessments
- Users of Claude Desktop, Cursor, or VS Code
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| Not for | - Real-time type checking; the source recommends an LSP for that purpose.
- Small scripts with fewer than about 10 files.
- Simple tasks requiring only raw text search.
- Treating taint or long-tail detector results as complete security coverage.
| - Looking up internal/private codebase documentation (Context7 targets publicly published open-source libraries)
- Cases needing very high coverage of obscure, niche libraries (coverage depends on what Context7's platform has indexed)
| - Projects outside the NPM ecosystem (e.g., pure Python/Go)
- Environments without network access to deps.dev, OSV.dev, and the npm registry
- Scenarios requiring maintenance by an official upstream vendor
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| Required permissions | - Access to the local repository is needed to discover, parse, and analyze source files.
- The server creates the local .roam/index.db and related analysis state.
- Write, persistence, or change-related tools may update .roam control files, run records, or evidence files.
- API keys and cloud login are not required by default.
| - Usable without an API key (subject to a free-tier rate limit); CONTEXT7_API_KEY is an optional credential for higher quota
- Read-only documentation lookup — no code execution or local filesystem access involved
| - Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
- Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
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| Risks and side effects | - Missing, stale, or interrupted indexes can produce incomplete analysis; inspect returned status and error signals.
- Static analysis and framework-idiom detection are not substitutes for real-time type checking or deep SAST; some findings are advisory.
- The full preset exposes 244 tools and may enlarge an agent's prompt surface.
- The first tree-sitter-language-pack use may download a checksum-verified platform grammar bundle; other network-capable commands and flags are opt-in.
- Write operations or autonomous-agent modes may create real repository files and run-record changes.
| - The free tier has limited quota — high-frequency use may hit rate limits
- Documentation content comes from Context7's platform index, so its accuracy and freshness depend on that platform's crawl cadence
| - Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
- Depends on availability and accuracy of external services
- Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
- Third-party open source project, not officially maintained by NPM or Anthropic
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| Supported clients | Claude Code, Claude Desktop, Cursor, VS Code with Copilot | Claude Code, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor |
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| Tools | 17 | 2 | 19 |
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