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Wires the CodeGraph MCP server into Pi via its mcp.json: - global: <agent-dir>/mcp.json + <agent-dir>/AGENTS.md - local: <cwd>/.pi/mcp.json + <cwd>/AGENTS.md <agent-dir> defaults to ~/.pi/agent and is overridable via PI_CODING_AGENT_DIR, mirroring how Pi itself resolves it. Sets exposure: "direct" on the MCP entry so codegraph_explore is declared as a native tool instead of being hidden behind Pi's default codemode exposure.
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Adds Pi (
@earendil-works/pi-coding-agent) as an installer target, socodegraph install --target=piwires the CodeGraph MCP server into Pi the same way the existing targets do.~/.pi/agent/mcp.json<cwd>/.pi/mcp.json~/.pi/agent/AGENTS.md<cwd>/AGENTS.mdThe agent directory is resolved the way Pi resolves it —
PI_CODING_AGENT_DIRwhen set, otherwise~/.pi/agent— so the install can't silently write to a directory Pi never reads.Why
exposure: "direct"Pi defaults every MCP server to
codemode, where the server's tools are callable from codemode scripts but are not declared to the model. The CodeGraph guidance tells the agent to callcodegraph_exploreby name, so the entry sets"exposure": "direct"to put it on the native tool list. CodeGraph exposes a single tool by default, so there's no tool-list bloat to trade off (codemode stays available as a fallback).Changes
src/installer/targets/pi.ts— the new targetsrc/installer/targets/registry.ts,src/installer/targets/types.ts— registerpisrc/bin/codegraph.ts,src/installer/index.ts— help/header text__tests__/installer-targets.test.ts— 6 Pi tests (global/local install, idempotent re-run, sibling-server preservation, uninstall round-trip,PI_CODING_AGENT_DIRoverride); the parameterized contract suite covers Pi automatically once it's inALL_TARGETSREADME.md,CHANGELOG.mdTesting
npx tsc— cleannpx vitest run __tests__/installer-targets.test.ts— 265 passed, 10 skippedcodegraph install --target=pi --location=global --yespreserved the three pre-existing servers in~/.pi/agent/mcp.json, wrote theAGENTS.mdblock, and a re-run reportedUnchanged;codegraph uninstall --target=pi --keep-clireversed it cleanly.pi mcp list→codegraph: connected, 1 tool (direct, global)→codegraph_explore.initialize+tools/listagainstcodegraph serve --mcp) returnsserverInfo codegraph 1.6.1andtools: ["codegraph_explore"].Happy to adjust the naming, the file layout, or the
exposurechoice.