MCP Hook Conformance
Audits MCP servers for Claude Code mcp_tool hook readiness: idempotency, latency, side-effects.
Install
npmstdio
npx -y mcp-hook-conformance Client config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"io-studiomeyer-hook-conformance": {
"command": "npx",
"args": [
"-y",
"mcp-hook-conformance"
]
}
}
} Source: official MCP Registry record · registry name io.studiomeyer/hook-conformance · published 2026-08-19 · updated 2026-08-19. Not an endorsement; review the code before connecting it to anything sensitive.