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Add `semble_rs serve`, a stdio MCP (Model Context Protocol) server that exposes search, tree, deps, impact, find_pattern, find_related, and plan as self-describing tools for coding agents. Stateless like the CLI: every tool call re-indexes the target path fresh. - src/mcp.rs: JSON-RPC 2.0 protocol layer with version negotiation, background model warm-up, per-call panic isolation, typed argument validation, and protocol-level tests - src/render.rs: extract shared string renderers from main.rs so the CLI and MCP server reuse the same output formats (stdout is reserved for protocol messages in stdio transport) - src/plan.rs: add format_plan returning a String - README: document MCP setup for Claude Code and JSON-config hosts - .gitignore: add .idea/ and .DS_Store Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Add an MCP server mode ($name($ $$)" through a shell. MCP makes the tools appear in the agent's tool list with typed JSON schemas and lets hosts
semble_rs serve) so coding agents discover and call semble as native, self-describing tools instead of relying on prompt nudging and shell invocations. This removes the two friction points that hold back adoptiontoday: models hesitate to invoke unfamiliar CLI binaries, and bash tool calls require quoting patterns like "fn
auto-approve read-only calls.
The server runs over stdio JSON-RPC 2.0 with zero new dependencies, exposing
search,tree,deps,impact,find_pattern,find_related, andplan— the full read-only query surface.digestandsavingsstay CLI-only (digest is a pipe; the log would already be in context before an MCP tool could compress it). Statelessness is preserved: every call reindexes the target path, just like the CLI. The embedding model warms up at startup in a background thread, so the first tool call doesn't hit a host timeout.CLI usage is unchanged — the printers were extracted into shared render functions that are reused by both front-ends.