Sigistry Plugin & Skill Catalog
mcp remote · streamable-http · v1.5.0 · source: crawl
https://sigistry.com/mcp
Search verified Claude Code plugins and skills; fetch portable SKILL.md sources. Read-only.
Works
100
Verified Oct 31, 2026 · p50 594 ms · p95 647 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'sigistry' |
| tools_listed | 15 | pass | 9 tools |
| schema_complete | 15 | pass | 9 of 9 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 594 ms |
| latency_p95 | 5 | pass | p95 647 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (9)
| Name | Description | Schema |
|---|---|---|
search_plugins | Search the Sigistry marketplace of Claude Code plugins by keyword and/or category. Returns matches with their install command and verification status (the registry runs an eight-check security audit; | typed |
get_plugin | Get the full details of a single Sigistry plugin by its id, including install commands, component counts, and its security-audit result (per-check pass/fail from the Verified by Sigistry methodology). | typed |
list_categories | List the distinct plugin categories in the Sigistry marketplace with a count of plugins in each, plus the total plugin count. | typed |
search_skills | Search the Sigistry catalog of verified skills (SKILL.md instruction sets for AI agents) by keyword, optionally filtered to one parent plugin. Every skill passed the skill-safety check: no command sha | typed |
get_skill | Get one Sigistry skill by name, including the full raw SKILL.md source. The source is portable: it can be applied directly in any SKILL.md-aware agent (Claude Code, Claude Desktop, and others) without | typed |
list_scorecards | List the public MCP servers Sigistry has independently graded against its scorecard rubric (transport, stateless core, lifecycle, authorization, tool design, security hygiene), each with an overall gr | typed |
get_scorecard | Get the full scorecard for one graded MCP server by its id: the overall grade, per-axis pass/partial/fail with cited evidence, hardening notes, the rubric version, and the exact commit graded. Grades | typed |
verify_plugin | Get the recipe to run the Sigistry verification methodology (the eight static checks that gate the Verified badge: manifest integrity, hook safety, agent tool scopes, command hygiene, skill structure, | typed |
check_mcp_app | Get the Sigistry MCP App safety criteria to audit an MCP App (MCP Apps / SEP-1865: a tool that returns an interactive ui:// HTML resource the host renders in a sandboxed iframe) BEFORE shipping it. Re | typed |
Badge
Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/com-sigistry-plugin-catalog)
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