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feat(cli): parallel backlog scheduler for the shared Buzz agent channel

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Evolve `amy buzz agent serve` from a sequential responder into a scheduler that
manages a shared feature-request backlog by itself — the model where a whole team
drives an AI in one channel, not a 1:1 chat.

- Parallel execution with isolation: `--parallel N` runs up to N jobs at once,
  each in its own `git worktree` + branch (`--worktree REPODIR`, off `--base-ref`,
  named `<branch-prefix><jobid>`) so concurrent autonomous runs never clobber one
  working tree. `--parallel > 1` requires `--worktree`; worktree add/remove is
  mutex-serialized while the agent work runs concurrently. Branch/worktree/base-ref
  are exported to `--exec` (BUZZ_BRANCH/WORKTREE/BASE_REF) so it commits, pushes the
  branch, and opens the PR. Merge stays on GitHub — never here.
- Group-driven priority: BuzzJobAggregator now folds kind-7 upvotes (distinct
  reactors, dislikes excluded) into JobView.upvotes, and `byPriority` orders the
  backlog most-upvoted-first, oldest-first tiebreak. The stack reprioritizes itself
  as the channel reacts. `buzz job list/show` surface upvotes.
- Channel-as-allowlist: `--accept-from-channel` obeys any member of the channel's
  kind-39002 roster ("anyone in the channel can drive"), union with explicit
  `--accept-from` npubs.
- Harness cli/tests/buzz/job-loop.sh gains a parallel case (3 jobs, --parallel 3,
  one branch/worktree each, cleaned up); aggregator gains upvote + priority tests.
  11/11 harness checks + all unit tests green.

Fits entirely inside amy: amy is the scheduler, the coding agent is whatever
`--exec` points at, GitHub owns merge. Plan doc updated with the model + the
"can this live in Amy" architecture note.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011mApqAbr8vkLC7gUDjavu6
This commit is contained in:
Claude
2026-07-25 18:19:40 +00:00
parent 635e785753
commit e0d6febd5b
9 changed files with 460 additions and 114 deletions
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cli/tests/buzz/job-loop.sh
+14
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@@ -96,6 +96,20 @@ check "requester" _ "$(echo "$SHOW" | jkey requester)" "$ALICE"
check "agent" _ "$(echo "$SHOW" | jkey agent)" "$BOT"
contains "result carries exec stdout with piped stdin" "$(echo "$SHOW" | jkey result)" "PR opened for: hello from alice"
echo "> 5. parallel scheduler: 3 jobs, --parallel 3, one worktree+branch each" >&2
REPO="$STATE_DIR/repo"; mkdir -p "$REPO"
git -C "$REPO" -c init.defaultBranch=main init -q
git -C "$REPO" -c user.email=a@b.c -c user.name=t commit -q --allow-empty -m init
for n in one two three; do run_req buzz job request "$RELAY" "parallel $n" --agent "$BOT" >/dev/null; done
PAR=$(run_agent buzz agent serve "$RELAY" \
--exec 'printf "on %s: " "$BUZZ_BRANCH"; cat' \
--accept-from "$ALICE" --parallel 3 --worktree "$REPO" --base-ref main --once)
check "parallel scheduler handled 3" _ "$(echo "$PAR" | jkey handled)" "3"
BRANCHES=$(git -C "$REPO" branch --list 'claude/job-*' | wc -l | tr -d ' ')
check "created one branch per job" _ "$BRANCHES" "3"
LEFTOVER=$(git -C "$REPO" worktree list | sed 1d | wc -l | tr -d ' ')
check "worktrees cleaned up after runs" _ "$LEFTOVER" "0"
echo "" >&2
echo "> RESULTS: $PASS passed, $FAIL failed" >&2
[[ $FAIL -eq 0 ]] && exit 0 || exit 1