Development

See AGENTS.md at the monorepo root for fork-specific guidelines (changes.md contract, extension-first philosophy, tab indent / 120 width, etc.).

Setup

git clone https://github.com/code-yeongyu/senpi
cd senpi
npm install
npm run build

Run from source:

/path/to/senpi/pi-test.sh

The script can be run from any directory. Senpi keeps the caller's current working directory.

Forking / Rebranding

This repo is itself a rebrand of upstream pi-mono to senpi. The runtime identity (CLI name, config dir, env var prefix) is configured via package.json:

{
  "piConfig": {
    "name": "senpi",
    "configDir": ".senpi"
  }
}

Change name, configDir, and bin field for your fork. Affects CLI banner, config paths, and environment variable names.

Path Resolution

Three execution modes: npm install, standalone binary (bun build --compile), tsx from source.

Always use src/config.ts for package assets:

import { getPackageDir, getThemesDir } from "./config.js";

Never use __dirname directly for package assets.

Debug Command

/debug (hidden) writes to ~/.senpi/agent/senpi-debug.log:

• Rendered TUI lines with ANSI codes
• Last messages sent to the LLM

Testing

npm test            # Vitest across workspaces (skips live-API; default test runner)
./pi-test.sh        # Launch the CLI from source via tsx for manual testing (--no-env unsets API keys)
npm run check       # Biome + tsgo + browser-smoke + web-ui check (pre-commit equivalent)

Live-API tests are env-gated vitest tests. Set PI_ENABLE_LIVE_API_TESTS=1 (or a per-provider flag from packages/ai/test/live-api-gates.ts) plus the provider API keys, then run npm test.

Run a specific test:

npm test --workspace @code-yeongyu/senpi -- test/specific.test.ts

Project Structure

packages/
  ai/           # @earendil-works/pi-ai — LLM provider abstraction
  agent/        # @earendil-works/pi-agent-core — Agent loop and message types
  tui/          # @earendil-works/pi-tui — Terminal UI components
  coding-agent/ # @code-yeongyu/senpi — CLI and interactive mode (this package)
  web-ui/       # @earendil-works/pi-web-ui — Lit chat components

See the monorepo root AGENTS.md for the full task → location map.