engaku 1.1.0

AI persistent memory layer for VS Code Copilot

engaku

AI persistent memory layer for VS Code Copilot — keeps project context, rules, and active tasks in front of the agent at every turn through VS Code Agent Hooks.

What it does

engaku gives VS Code Copilot durable project memory stored in .ai/ Markdown files. Agent Hooks automatically inject current context into every conversation, surface active-task steps on each prompt, and remind the agent when a task plan is complete and ready for review.

Installation

pip install engaku

Or install directly from source:

pip install git+https://github.com/JorgenLiu/engaku.git

Quick Start

# Bootstrap .ai/ and .github/ structure in your repo
engaku init

After running init, VS Code Agent Hooks are active. The @coder, @planner, @reviewer, and @scanner agents are available via .github/agents/. No further manual steps are needed — hooks fire automatically on SessionStart, UserPromptSubmit, Stop, and PreCompact.

What engaku init creates

.ai/
  overview.md       — project description, constraints, tech stack
  tasks/            — planner-managed task plans
  decisions/        — architecture decision records
.github/
  copilot-instructions.md   — global agent rules
  agents/           — coder, planner, reviewer, scanner agent definitions
  instructions/     — .instructions.md stubs for hooks, templates, tests
  skills/           — bundled skills (systematic-debugging, verification-before-completion, etc.)
.vscode/
  mcp.json          — MCP server configuration (chrome-devtools, context7, dbhub)

Subcommands

Command	Purpose
init	Bootstrap .ai/, .github/ structure and install VS Code Agent Hooks
inject	Inject .ai/overview.md + active-task context (SessionStart / PreCompact hook)
prompt-check	Detect rule/constraint in user prompt and inject active-task steps (UserPromptSubmit hook)
task-review	Detect completed task plans and emit handoff reminder (Stop hook)
apply	Apply .ai/engaku.json model config to .github/agents/ frontmatter

How it works

After engaku init, four Agent Hooks fire automatically:

• SessionStart → engaku inject: injects overview.md and the active-task's remaining unchecked steps at the start of every session.
• PreCompact → engaku inject: injects the full task body (Background, Design, File Map, and all checkbox lines) before conversation compaction so the compact model retains full task context.
• UserPromptSubmit → engaku prompt-check: scans each user prompt for new rules or constraints and injects all remaining unchecked task steps as a system message so the agent always knows what to do next.
• Stop → engaku task-review: after each agent turn, checks whether all steps in an in-progress task plan are ticked and emits a handoff reminder if so.

Requirements

• Python ≥ 3.8 (stdlib only, no third-party dependencies)
• VS Code with GitHub Copilot

Python 3.8 baseline: v1.0.x is the final release supporting Python 3.8. Users on constrained environments can pin with pip install "engaku<1.1". Later releases require Python 3.11+.

MCP Servers

engaku init creates .vscode/mcp.json with three preconfigured MCP servers that give VS Code Copilot structured tool access to browser automation, live library documentation, and databases. Use engaku init --no-mcp to skip this entirely.

engaku update adds any missing server entries to an existing .vscode/mcp.json without overwriting your customizations.

chrome-devtools-mcp

github.com/ChromeDevTools/chrome-devtools-mcp — Browser automation and DevTools via Puppeteer. Provides screenshot capture, page navigation, element interaction, JavaScript evaluation, Lighthouse performance audits, and network request inspection.

Prerequisites: Node.js + Chrome

{
  "chrome-devtools": {
    "command": "npx",
    "args": ["-y", "chrome-devtools-mcp@latest", "--headless"]
  }
}

context7

github.com/upstash/context7 — Live, version-specific library documentation. Two tools: resolve-library-id (search by name) and query-docs (fetch current docs). HTTP remote mode — no local process needed.

Prerequisites: None (network access only). Set CONTEXT7_API_KEY env var for higher rate limits.

{
  "context7": {
    "type": "http",
    "url": "https://mcp.context7.com/mcp"
  }
}

dbhub

github.com/bytebase/dbhub — Multi-database access supporting PostgreSQL, MySQL, MariaDB, SQL Server, and SQLite. Two tools: search_objects (schema exploration) and execute_sql (query execution).

Prerequisites: Node.js. Requires a DSN connection string (VS Code prompts on first use).

{
  "dbhub": {
    "command": "npx",
    "args": ["@bytebase/dbhub@latest", "--dsn", "${input:dbDsn}"]
  }
}

DSN formats:

Database	Format
PostgreSQL	postgres://user:pass@host:5432/db?sslmode=disable
MySQL	mysql://user:pass@host:3306/db
MariaDB	mariadb://user:pass@host:3306/db
SQL Server	sqlserver://user:pass@host:1433/db
SQLite	sqlite:///absolute/path/to/file.db

For passwords with special characters (:, @, #), use environment variables (DB_TYPE, DB_HOST, DB_PORT, DB_USER, DB_PASSWORD, DB_NAME) in the server's env block instead of encoding them in the DSN.