success_metric: Epic 7 closes — draft PR opens for code + doc_review→published for docs, operator notes work mid-build, doc-writer examples ship, live E2E checklist is runnable without Cursor
Second-brain v0.1 shipped harness-agnostic, Plans tree, Fleet. Epic 7 remains `in_progress` per `plans/Plan-automation-foundation/Epic-apps-worker-v1/Epic-apps-worker-v1.md:23` — tool loop + checkpoints are done, but **no draft PR** via forge adapter blocks Epic 8 dogfood, and **live E2E**`Task-worker-live-e2e-dogfood.md` needs operator proof. Doc writers were asked to be included — this convoy adds `role-doc-writer` for SOPs/book research pipelines (docs that use `doc_review→published` without worktree).
See `docs/decisions/2026-08-25-second-brain-os-pivot.md`.
## Scope
1.**Draft PR via forge**`Task-worker-draft-pr.md` — push branch if needed, `createPullRequest(draft)` on GitHub/Forgejo from worktree, persist URL to convoy, skip for non-implementer roles, handle both `pr_review` and `doc_review` (doc tasks publish without PR but still log).
2.**Operator notes mid-build**`Task-worker-operator-notes.md` — `convoy_operator_messages` table (workspace-scoped, `queued|direct`), tRPC `postOperatorNote`/`listOperatorNotes`, worker poll between tool rounds, Mission control chat thread for `in_progress` convoys.
3.**Doc-writer examples** — `role-doc-writer` routed via harness (uses `doc-writer` harness `needsWorktree:false`), writes book/course research example under `docs/examples/research-pipeline.md` + `docs/templates/doc-sop.md`, updates `docs/worker.md` with doc harness section.
4.**Live E2E dogfood**`Task-worker-live-e2e-dogfood.md` — operator checklist doc (not code), proves `Go → worker` without Cursor; done only when checklist true on real Redis/Coolify.
- [ ] Brief 4 live E2E verification (ops doc, no code)
## IA
Skipped (`ia` in skip). No new entities beyond `convoy_operator_messages`; `harness_providers` already exists from v0.1.
## UX
Skipped (`ux` in skip). Reuses `Mission control detail panel` thread section + `Gate co-pilot` separation.
## Architecture
- State machine: `doc_review→published` already added `packages/shared/src/convoy-lifecycle/state-machine.ts:9` — reuse.
- Worker: `apps/worker/src/handle-job.ts:40` already optional worktree — add PR call after success before teardown, branch naming `echodo/<convoy>-<brief8>`, marker `echodo-convoy: <uuid>` in body for Epic 8 webhook.
- Operator notes: poll `convoy_operator_messages` where `delivered_at IS NULL` each `checkpointEveryNSteps`; inject `Queued note: ...` into system prompt tail or prepend `Direct message: ...`.