Raw shell git is denied to agents (Bash(git:*) base deny), so a developer
whose branch fell behind its base had no gate-level rebase — only the
CEO/PM-only /rebase HTTP route. sync_branch is the dev verb that wraps the
rebase through the gate (traced + evidenced), so the 'everything goes through
the gates' invariant holds.
- lifecycle: IntentSpec sync_branch (dev-only, ownership-gated, composes=(),
git-only — no DB transition); _next_hint_synced helper.
- GitService.sync_task_branch: rebase task.branch_name onto its resolved base
via rebase_onto_base (fetch + rebase + force-with-lease push).
- Choreographer.sync_branch + _sync_branch_preflight_rejection: not_found /
unknown-role / spec-gate / no-branch / protected-base guards, then the git
op; conflicts abort (no force-push) and steer to resolve-by-hand; git failure
steers to i_am_blocked.
- HTTP route /api/v1/flow/developer/sync_branch + SyncBranchRequest schema.
- MCP tool sync_branch(task_id) + _TOOLS registration (manifest auto-propagates
via intents_for_role(Role.DEVELOPER)).
Tests: intent spec (5), choreographer handler (8: happy/conflicts/not_found/
not_authorized/no-branch/protected-base/git-failure/audit), route (1), MCP (1).
ruff + mypy roboco/ tests/ clean; unit suite green (DB-fixture errors env-only).
