docs: add polygraph to community projects (#1421)

Adds polygraph (https://polygraph.so) to the **Other** section of
`docs/community-projects.md`, per the *Adding Your Project* instructions
(one-line entry).

polygraph publishes independent behavioral security grades (A–F) for MCP
servers from an open, reproducible harness
(https://github.com/polygraphso/litmus) — it exercises a server's live
tool surface and grades what it does (tool-output injection, undeclared
egress, sensitive-data handling, adversarial-input robustness), then
publishes the results as an adoption-ranked index with per-server
reports. It reads the official registry to discover and version servers,
and adds the independent ratings layer this project's docs note
downstream aggregators can provide.

One-line entry only; no code or schema changes.
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Rúben Sousa Dinis 2026-07-10 23:55:54 +01:00 • committed by GitHub
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@ -35,6 +35,7 @@ Self-hostable servers that implement the MCP Registry API specification.
- [mcp-insights](https://github.com/joelverhagen/mcp-insights/) - Analytics and insights for the MCP Registry
- [mcp-registry-cli](https://pypi.org/project/mcp-registry-cli/) - CLI tool to navigate the MCP registry servers
- [OtherVibes/mcp-publish-action](https://github.com/OtherVibes/mcp-publish-action) - GitHub Action for publishing MCP servers to the official registry
- [polygraph](https://polygraph.so) - Independent behavioral security grades (A–F) for MCP servers from an open, reproducible harness, published as an adoption-ranked index with per-server reports
## Adding Your Project