Salman Mohammed 813bbd1412 fix(acp): integrate the Buzz Pi adapter fork (#7552) ...

## Summary

PR #7335 worked around missing Pi adapter support by generating a
private Pi launcher and injecting Buzz's standing prompt and skills at
process launch. The Buzz Pi fork now carries the required adapter
extensions, so this removes that launcher and returns prompt
construction to the normal ACP session path while retaining the
base-prompt composition introduced by #7335.

The Pi preset now installs `salman1993/pi-acp` and launches its renamed
`buzz-pi-acp` binary. Buzz adds `-- --skill
<harness-cwd>/.agents/skills` only when launching that binary, sends the
complete composed prompt as the `_meta.systemPrompt` replacement string
on `session/new` only when `initialize.agentInfo.name` is `buzz-pi-acp`,
and sends the scoped title alongside it as `_meta.sessionTitle`. The
fork identity is treated as system-prompt capable regardless of its
reported ACP protocol version, which prevents duplicate legacy
user-message framing. Upstream `pi-acp` does not receive either
fork-specific behavior. Observer transcript projection accepts the
string, `{ replace }`, and `{ append }` metadata forms.

The fork now stores restore metadata in one atomic file per session
under `~/.pi/buzz-pi-acp/sessions/`. This prevents concurrent Buzz
workers from overwriting another session's prompt or title. The fix
landed in
[salman1993/pi-acp#9](https://github.com/salman1993/pi-acp/pull/9).

This supersedes the closed #7508. No agent-configuration rules changed;
this changes the Buzz Pi adapter contract and launch arguments.

### Related issue

#7329

### Testing

Installed fork commit `09cf07e436b8f18e52401558f988f31a15702313` through
the documented Git URL. The installed bundle matched the committed
`dist/index.js` byte for byte and contained the `~/.pi/buzz-pi-acp`
metadata path. The fork's 106 non-skipped tests, typecheck, and lint
pass.

Ran the ignored real-Pi integration test through Buzz's production
session composer. The test exercised the renamed package,
`agentInfo.name`, and the new per-session metadata store. Base, persona,
team, core-memory, huddle, canvas, and skill markers each appeared once
after switching sessions and again after restarting the adapter, while
the other session and Pi's native default prompt were absent.

Added regression coverage proving `buzz-pi-acp` receives fork-specific
system-prompt metadata and managed skills while upstream `pi-acp` does
not. `just ci` passes.

Generated with Codex

---------

Signed-off-by: Salman Mohammed <smohammed@squareup.com>

2026-09-10 21:38:42 -04:00

..

pi_prompt_tests.rs

fix(acp): integrate the Buzz Pi adapter fork (#7552)

2026-09-10 21:38:42 -04:00

system_prompt_tests.rs

fix(acp): integrate the Buzz Pi adapter fork (#7552)

2026-09-10 21:38:42 -04:00