Mcp graveyard

Skill sfrangulov/skill-graveyard/skills/mcp-graveyard

Audit which Claude Code skills you actually use — surface dead installs and hallucinated invocations from your session logs.

Install

npx -y skills add sfrangulov/skill-graveyard --skill mcp-graveyard

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One thing to look at

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What its author says it does

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Audit which MCP server tools your Claude Code sessions actually invoke. Use when the user wants to find dead MCP servers (configured but never called), hallucinated MCP tool calls, or per-project MCP usage. Triggers on "which MCP servers don't I use?", "clean up MCP config", "remove unused MCP servers", "audit MCP tools". Runs locally; reads ~/.claude session JSONL logs and ~/.claude.json. No network calls.

The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

1.4 KB, as published. Nobody here has run it

mcp-graveyard

CLI that audits MCP server tool usage. Server-first table grouped into ACTIVE / DEAD / HALLUCINATED / MISSING buckets.

How to invoke

Run via npx mcp-graveyard@latest <subcommand> [flags] — no install needed.

Subcommands

audit (default) — classify every server. Flags: --days N, --only <bucket>, --tools <server> (drill-in), --json, --claude-dir <path>.
prune — print removal plan. --apply to execute (with auto-backup of removed config to a timestamped file).
suggest — actionable triage for unused/hallucinated.
projects — per-project breakdown.

Decision flow

"which MCP servers do I not use?" → npx mcp-graveyard@latest
"clean up MCP config" → prune, then --apply
"MCP tool didn't work" → suggest
per-project breakdown → projects

After running, print output verbatim. Do not summarize unless the user asks.