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Validate MCP configuration and suggest improvements. Use when MCP servers fail to load, after editing .mcp.json, or when the user runs /mcp-check.
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| name | mcp-check |
| description | Validate MCP configuration and suggest improvements. Use when MCP servers fail to load, after editing .mcp.json, or when the user runs /mcp-check. |
| user-invocable | true |
Validate the project's MCP setup for correctness and completeness.
| File | Scope | What lives here |
|---|---|---|
.mcp.json (project root) | Project | mcpServers — the server definitions, written by claude mcp add --scope project |
.claude/settings.json | Project | Toggles only: enableAllProjectMcpServers, enabledMcpjsonServers |
~/.claude.json | User | User-scope mcpServers, available across all projects |
The source of truth for project servers is .mcp.json at the project root. Read mcpServers from there — .claude/settings.json never holds server definitions, only approval toggles.
.mcp.json is valid JSON (no trailing commas)mcpServers object exists in .mcp.json.claude/settings.json: either enableAllProjectMcpServers: true, or each server named in enabledMcpjsonServerscommand is validargs properly formattedenv variables set| MCP | Required? |
|---|---|
| memory | Recommended |
| filesystem | Optional |
| github | If .git exists |
## MCP Configuration Report
### Status: VALID / ISSUES / INVALID
### Configuration Summary
| MCP Server | Status | Notes |
|------------|--------|-------|
| memory | OK/FAIL | details |
### Issues Found
1. [Issue and fix]
### Missing Recommended MCPs
- memory: `claude mcp add --scope project memory...`
| Issue | Fix |
|---|---|
| Invalid JSON | Check trailing commas |
| MCP not loading | claude mcp reset-project-choices |
| Missing env vars | Add with -e KEY=value |