Tasks gain kind='main'|'side' (NULL=main). A side thread hangs under a
parent task, defaults to the local executor, never builds a worktree,
branch or container unless explicitly asked, and writes its conclusion
back to the parent via task_followups on terminal transition.
- server: kind validation + side-thread gates (parent required, no
coordinator_parts/upload_id/environment_id, parent must not be a
coordinator), local executor default, GET /tasks kind filter,
/worktree 404 and /fork /merge /pr 409 for side threads.
- worker: side-default shunt in _run_attempt (no-worktree scratch cwd,
in-memory plan=1 when a repo is present, seed/checkpoint skipped),
_writeback_side_thread, marker task-create kind field + inheritance,
side threads excluded from marker spawn counts.
- host/sandbox: --no-worktree plumbing for dispatch/goal/popen
(Local + Docker), scratch cwd work/side-threads/<task-id>.
- console (classic only): kind filter + [旁聊] rows + '开旁聊' entry,
side-thread dispatch mode, side-thread list in detail, merge/PR/fork
hidden for side threads; build exit 0, console.html sha df39db5a.
- tests: new test_sidethread.py (29 tests) + kind backfill tests in
test_p2_migrations.py; full cloud suite 3900 tests OK (skipped=13).
Design: verification/codex-muse-role-alignment-design-20261108.md
Summary: verification/codex-muse-role-align-p1p2-20261108.md
Local only: not pushed, not merged, not deployed.
Server writes goal + monotonic goal_version + task_goal_history in one
transaction (CAS on version, approve_merge only, new-semantic goal tasks
only, terminal/merged 409, same-goal noop). Worker mirror thread (30s)
and breakpoint-resume claim hook write the update as a signal file next
to host-state.json; host run_goal_loop applies it at round boundaries
(top of round and before the declaration check, so a declaration made
for the old goal in a turn during which the goal changed is voided),
with an explicit old->new notice, same thread/worktree, rounds/usage/
budget/failed counters untouched. handler method accounting is a
contract update: 239 total / 223 mixins / 16 in server.py.
(cherry picked from commit 6841f287219d2b36cfbb8803642344b84dae4377)
Reconcile-port: handler_lifecycle.py contents redirected — _update_goal_task method + _goal_update_reject/_goal_signal_status pure functions + goal_live_update import into cloud/server.py (target keeps 6-mixin split); _task_to_dict goal fields into cloud/handler_support.py; migrate columns into cloud/server.py migrate_tasks_table; test patch target handler_lifecycle→server; test_handler_split_conformance.py kept at target version, to be re-pinned for the unified line in a final commit.
host