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SKILL verified MIT Self-run

Mcp Graveyard

skill-sfrangulov-skill-graveyard-mcp-graveyard · by sfrangulov

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 net…

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Install

$ agentstack add skill-sfrangulov-skill-graveyard-mcp-graveyard

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

✓ Security review passed
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● 2mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
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About

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 [flags] — no install needed.

Subcommands

  • audit (default) — classify every server. Flags: --days N, --only , --tools (drill-in), --json, --claude-dir .
  • 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.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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