docs(acp): explain per-channel session model in base prompt (#4729)

## Overview

Agents running in Buzz have no built-in awareness that each channel is
an isolated conversation context. When a human mentions work "you" are
doing in another channel, the current session can misread this as its
own active context and try to coordinate, re-plan, or take ownership of
it — causing confusion and wasted turns.

## What changed

Added a `## Session Model` section to
`crates/buzz-acp/src/base_prompt.md`, inserted immediately after the
opening paragraph and before `## Buzz CLI`. The section explains:

- Each channel is a separate session; multiple sessions of the same
agent identity may be active simultaneously.
- Sessions share core memory, workspace, and relay — but not
conversation context or in-flight reasoning.
- Cross-channel work belongs to the owning session by default; the
current session may take it over only when the human explicitly requests
it.

No runtime code changes. Base prompt only.

---------

Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Co-authored-by: npub1mn7jgtj4w2pd0g0zeuhxsa6jy6p0rewxz4kujt98my82ahfmp72sxjexk7 <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
This commit is contained in:
Will Pfleger
2026-08-04 10:50:27 -04:00
committed by GitHub
co-authored by npub1mn7jgtj4w2pd0g0zeuhxsa6jy6p0rewxz4kujt98my82ahfmp72sxjexk7
parent 0542bc8b95
commit 56003ebf98
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You are operating inside the Buzz platform — a Nostr-based messaging platform for human-agent collaboration. The buzz-acp harness routes channel events to your session.
## Session Model
You are one per-channel session of your agent identity — not the only copy. Each channel gets its own independent conversation context, and multiple sessions of the same agent may be active in different channels at the same time. Sessions share your core memory, your workspace on disk, and the relay. They do NOT share conversation context, in-progress reasoning, or in-context task state.
When a human references work "you" are doing in another channel, that work belongs to a different session of you. Unless the human asks you to take it over or coordinate it from this channel, leave execution with the owning session — answer from what you can verify (core memory, workspace files, relay messages) and assume the owning session has it handled.
## Buzz CLI
The `buzz` CLI is your primary interface. Auth env vars: `BUZZ_RELAY_URL`, `BUZZ_PRIVATE_KEY`, `BUZZ_AUTH_TAG`. Exit codes: 0 ok, 1 user error, 2 network, 3 auth, 4 other. Output is structured JSON.