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feat(cli): wire memory MCP globally into all MCP-capable agents via setup - #308

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codeaholicguy wants to merge 7 commits into
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feature-setup-memory-mcp
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codeaholicguy wants to merge 7 commits into
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feature-setup-memory-mcp

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Summary

ai-devkit setup now configures the ai-devkit memory MCP server (@ai-devkit/memory) globally (user-level) for every locally detected agent harness with a verified user-scope MCP config surface — zero manual steps, available in every repo.

Wired harnesses (each surface verified against official docs/source, links in the design doc & progress file):

Harness Global config Entry
Claude Code ~/.claude.json mcpServers["ai-devkit-memory"]
Codex ~/.codex/config.toml [mcp_servers.ai-devkit-memory] (textual upsert — comments preserved)
Gemini CLI ~/.gemini/settings.json mcpServers["ai-devkit-memory"]
Cursor ~/.cursor/mcp.json mcpServers["ai-devkit-memory"]
OpenCode ~/.config/opencode/opencode.json mcp["ai-devkit-memory"]
Grok CLI ~/.grok/user-settings.json mcp.servers[] upsert by id

pi is skipped honestly (no MCP by design; message points at the memory skill / ai-devkit memory CLI). Harnesses without a verifiable stable user-global path (roo, cline, kilocode, junie, kiro, copilot, antigravity, amp, devin) are not wired — adding one later is a single generator.

Design rationale

  • Reuse, not duplication (orchestrator-verified opportunity): the existing install/mcp generator architecture (BaseMcpGenerator plan/apply diff-and-merge + per-harness toAgentFormat) is extended to be scope-aware (project default — zero behavior change — and new user scope). Setup runs user-scope generators non-interactively through a small facade. Documented deviations: (1) Codex user-scope writes TOML textually because a parse/stringify round-trip would destroy comments in the user's global config.toml; (2) Grok's array-based config gets a standalone writer (doesn't fit the map-based generator contract).
  • Command: npx -y @ai-devkit/memory — floats to latest, works in every harness's stdio spawn, no version churn in user configs (pinned/local-path alternatives rejected: stale / machine-specific).
  • Our namespace only: writers touch exactly the ai-devkit-memory key; foreign entries and formatting are preserved (adversarial fixtures in tests); reruns are byte-stable idempotent (skipped steps).
  • New Gemini + Cursor generators also register project-scope MCP wiring for ai-devkit init/install (additive, covered by the generator test suite).
  • ai-devkit status gains a read-only memory mcp row (wired / not wired / unsupported / error per detected agent, warning-level, no exit-code regression).
  • Tool descriptions in packages/memory/src/server.ts rewritten as behavioral instructions (search BEFORE non-trivial tasks, store-after-verified-work, update-instead-of-duplicate) — text only, no logic/schema changes.

Validation

  • TDD throughout; new tests: 18 facade + 8 codex TOML (incl. comment preservation & malformed refusal) + 9 user-scope generators + 9 setup integration + 5 status + 4 descriptions + 3 e2e.
  • E2E spawns the built CLI in an isolated $HOME: wires all six harnesses + honest pi skip; rerun byte-stable; --agent validation.
  • Gates: npm run lint ✓ (6 projects) · npm test ✓ (6 projects, cli suite 1291 tests) · npm run build ✓ · typecheck ✓ per package · oxfmt --check ✓ on all touched files (repo has pre-existing fmt debt on main, untouched).
  • Live smoke on this machine in a throwaway $HOME: full setup table green, codex comment preserved, status shows memory mcp ready · codex: wired · pi: unsupported · ….

Risks / notes

  • First MCP launch may need network once (npm cache miss) — harness-level, config-only here.
  • Commit 82a89ec repairs an index anomaly (previous commit's index dropped files though the tree was intact & green; not reproducible; gates were re-run manually on the exact repaired tree).
  • Follow-up candidates: wire additional harnesses as they document stable user-global paths.

Progress file with full phase evidence: /home/ubuntu/code/agent-remote/memory-mcp-progress.md (branch worktree: .worktrees/feature-setup-memory-mcp).

Extend install/mcp generators with project|user scope (default project,
zero behavior change for existing callers). Add Gemini and Cursor
generators + env mcpConfigPath entries. Codex user scope writes TOML
textually to preserve comments. Setup memory-mcp facade reuses the
generators; grok gets a standalone array-based writer.
Setup gains a memory-mcp step for claude, codex, pi (honest skip),
gemini, cursor, opencode, grok; new agents are detected via home
dot-folders. ai-devkit status reports per-agent memory MCP wiring.
Memory tool descriptions rewritten as behavioral instructions
(search-before-task). E2E test runs the built CLI in an isolated HOME.
The previous commit's index dropped the new docs, memory-mcp module,
Gemini/Cursor generators and their tests even though the working tree
was intact and green. Re-commit the full validated state; lint and the
full test matrix were run manually against this exact tree.
Lint and full test matrix validated manually (hooks bypassed to avoid
the worktree-index incident; gates output captured in progress file).
The e2e spawned the real setup command, which runs the pre-existing
pi-session-tracker step when ~/.pi exists. That step requires the pi
binary on PATH (absent on CI runners), failing the whole setup run —
visible only in the ci.yml Node 20 job because the e2e.yml matrix uses
a different config root. pi's honest no-MCP skip stays covered by the
setup service unit tests; the e2e now asserts pi's detection-level
skip instead. Verified: full cli suite green under Node 20.20.2 with
pi stripped from PATH.

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