tintinweb/pi-subagents

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# @tintinweb/pi-subagents

A [pi](https://pi.dev) extension that brings **Claude Code-style autonomous sub-agents** to pi. Spawn specialized agents that run in isolated sessions — each with its own tools, system prompt, model, and thinking level. Run them in foreground or background, steer them mid-run, resume completed sessions, and define your own custom agent types.

<img width="600" alt="pi-subagents screenshot" src="https://github.com/tintinweb/pi-subagents/raw/master/media/screenshot.png" />


https://github.com/user-attachments/assets/8685261b-9338-4fea-8dfe-1c590d5df543


## Features

- **Claude Code look & feel** — same tool names, calling conventions, and UI patterns (`Agent`, `get_subagent_result`, `steer_subagent`) — feels native
- **Parallel background agents** — spawn multiple agents that run concurrently with automatic queuing (configurable concurrency limit, default 4) and smart group join (consolidated notifications)
- **Live widget UI** — persistent above-editor widget with animated spinners, live tool activity, token counts, and colored status icons. Configurable via `/agents → Settings → Widget`: `all` (every agent), `background` (default — hides foreground runs, which already render inline as the `Agent` tool result), or `off`
- **FleetView** — Claude Code-style navigable list of `main` + every running subagent rendered below the editor (earliest-launched first). Press `↓` (or `←`) at an empty prompt to jump in, `↑`/`↓` to move the selection, `Enter` to open the selected agent's live, auto-updating conversation, `Esc` to return. Finished agents linger briefly before dropping out, and a viewer stays open through completion so you can read the final output. Toggle via `/agents → Settings → Fleet view`
- **Conversation viewer** — select any agent in `/agents` to open a live-scrolling overlay of its full conversation (auto-follows new content, scroll up to pause). Steer a running agent inline by pressing `Enter` to open a composer, typing, then `Enter` to send (`Esc` or an empty submit returns) — the message appears as a user message and redirects the agent after its current tool. Stop a still-running agent by pressing `x` (then `x` again to confirm) — both work for background agents too
- **Custom agent types** — define agents in `.pi/agents/<name>.md` or `.agents/agents/<name>.md` (project) or globally, with YAML frontmatter: custom system prompts, model selection, thinking levels, tool restrictions
- **Mid-run steering** — inject messages into running agents to redirect their work without restarting
- **Session resume** — pick up where an agent left off, preserving full conversation context

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