Scope & mission

nene-mcp is a standalone Composer MCP bridge for the NeNe ecosystem and generic HTTP apps.

Mission

Integrators add composer require hideyukimori/nene-mcp, configure MCP, and trust read/write HTTP proxy behavior without reading source.

In scope

stdio JSON-RPC MCP server (initialize, tools/list, tools/call)
NENE2-compatible committed tools.json catalogs
HTTP proxy to configured base URL + catalog paths
Built-in nene_mcp_about metadata tool
Fail-closed write tools, redirect SSRF mitigation, catalog validation

Out of scope

NeNe framework core changes (file Issues in NeNe repo)
Automatic OpenAPI → tools.json codegen (host responsibility)
Non-stdio MCP transports (HTTP/SSE server mode)
End-user UI or localization of MCP error strings

Philosophy

Inherited from NeNe:

Small, explicit, reviewable
OpenAPI / catalog as contract
Issue-driven changes, narrow PRs
MCP as plugin-style Composer package — not framework core