Claude Engineering Coach

A native Claude Code plugin that coaches you on your AI-assisted coding — without leaving the Claude Code terminal. Get usage summaries, anti-pattern coaching, tool comparisons, and flow analysis via MCP tools and /coach:* slash commands. (It can still read Codex / OpenCode / Copilot sessions too, but it runs inside Claude Code.)

Local-only · read-only · zero telemetry.

Reuses the analytics core of Microsoft's AI Engineering Coach — but that is a VS Code / GitHub Copilot extension. This one is built for Claude Code: it ships as a Claude Code plugin, so the coaching lives where you already work. MIT-licensed. Not affiliated with, sponsored by, or endorsed by Microsoft. See NOTICE.

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What it does

It reads your on-disk AI session logs (e.g. ~/.claude/projects/**/*.jsonl) and turns them into actionable coaching:

• /coach:summary — sessions, output, and your top anti-patterns
• /coach:improve — prioritized, evidence-backed recommendations
• /coach:compare — your AI tools side-by-side (sessions, LOC, models, cancel rates)
• /coach:flow — deep-work scores, best hours, session continuity

Claude can also call the underlying tools on its own — just ask "how was my coding this week, and what should I improve?"

Nothing leaves your machine: the server parses your logs in-process, redacts secrets before any output reaches the model, and never writes to your session files.

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Install

Requires Node ≥ 18 (the bundled MCP server runs with node). No npm install needed — the server bundle and rule assets are committed.

Easiest — install straight from GitHub (no local path)

In an interactive Claude Code session:

/plugin marketplace add nnhhoang/claude-engineering-coach
/plugin install coach@devempower-coach
/reload-plugins

Here marketplace add points at the GitHub repo (owner/repo), so there is no folder path to fill in. The marketplace name devempower-coach is read from .claude-plugin/marketplace.json; you use it in the install coach@devempower-coach step. Choose a scope when prompted (Local is fine for yourself).

Local dev — clone and load directly

git clone https://github.com/nnhhoang/claude-engineering-coach.git
cd claude-engineering-coach
claude --plugin-dir .

The . means "this folder" — nothing to fill in. Loads the plugin (commands + MCP server) for that session only.

Note: an earlier draft showed /plugin marketplace add /path/to/claude-engineering-coach. That /path/to/... was just a placeholder for "wherever you cloned it" — the two methods above avoid it entirely (one uses owner/repo, the other uses .).

Verify

/mcp

You should see the coach server connected with 13 tools. Then run:

/coach:summary

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MCP tools (13)

coach_summary, coach_activity, coach_credits, coach_codeProduction, coach_flow, coach_patterns, coach_insights, coach_wellbeing, coach_workflows, coach_harnessComparison, coach_sessions, coach_contextHealth, and coach_reload (re-read logs after new sessions).

When no date range is given, tools default to the last 90 days. Pass fromDate / toDate (ISO YYYY-MM-DD) to widen or narrow.

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How it works

core/                vendored analytics (parsers, analyzers, 45 rule + 10 metric .md)
  └─ formatters.ts   pure formatter functions
mcp/
  ├─ tool-defs.ts    12 tools (+ 90-day default + secret redaction)
  ├─ analyzer-cache.ts  lazy, cached Analyzer over parseAllLogs(findLogsDirs())
  ├─ server.ts       MCP stdio server (list / call / reload)
  └─ dist/server.mjs committed esbuild bundle (+ rules/ + metrics/ assets)
commands/            /coach:summary · improve · compare · flow
.claude-plugin/      plugin.json + marketplace.json
.mcp.json            registers the bundled "coach" server

The analytics engine is reused verbatim from upstream (it was already VS Code-free). Only the integration layer (mcp/) and packaging are new.

Rebuild after changing mcp/** or re-vendoring core/

npm install   # first time only
npm run build # → mcp/dist/server.mjs (+ copies rule/metric assets)
npm test      # core-smoke, tool-defs, analyzer-cache, server.e2e

The build commits its output (mcp/dist/) so the plugin runs on a fresh clone with only node.

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Attribution & license

This project vendors the analytics core of microsoft/ai-engineering-coach (MIT). Vendored files under core/ keep their original Microsoft copyright headers; see NOTICE and VENDOR.md for the exact upstream commit.

Licensed under the MIT License. Not affiliated with Microsoft.