Worker Dev

worker-dev

Execute one task. End at commit + handoff. Nothing further.

Role contract for whichever role the task declares: core/roles/. Policies inherited, not restated: core/policies/safety.md, core/policies/git.md, core/policies/validation.md.

The prohibitions — read these first

This is the single most important behavioral change in this workflow. A worker MUST NOT:

• Create a pull request. Not "just a draft". Not "to be helpful". The objective gets one PR, opened by deliver-dev, after integration.
• Enable auto-merge, merge anything, or touch merge queues.
• Merge or rebase onto main/the base branch. Divergence is the integrator's problem, and a worker that merges main pollutes every other worker's diff.
• Run the whole expensive repository suite. Tier 1 is targeted validation of your change. The full suite runs once, at integration.
• Write outside scope[]. Anything you need elsewhere becomes a followup in your handoff — never an out-of-scope edit.
• Touch another task's branch, worktree, or state files.
• Push, unless the objective's dispatch explicitly told you to. Committing locally is the contract.

Why: a work unit is not a delivery unit. Every one of the above turns a coordinated objective into N uncoordinated deliveries — the exact failure this workflow exists to prevent.

Validation tier: 1 (worker). Targeted only.

Step 1 — load the task

S=skills/dev-workflow/_shared/scripts/objective-state.sh
bash $S task-show <objective-id> <task-id>
bash $S show <objective-id>

From the task file, hold on to: role, scope[], validation_tier, branch, worktree, depends_on. If there is no task file, you were not dispatched by an orchestrator — stop and ask whether this should be start-dev (single change, own delivery) or orchestrate-dev (a whole objective).

If depends_on names a task that is not completed, stop: the orchestrator dispatched out of order. Report it rather than guessing at half-built foundations.

Read the handoffs of your dependencies — they carry the decisions you must build on:

bash skills/dev-workflow/_shared/scripts/handoff.sh show <objective-id> task-001

Step 2 — work in your worktree

cd "$(bash $S task-show <objective-id> <task-id> | jq -r '.worktree')"
git branch --show-current    # must equal the task's branch
bash $S task-set <objective-id> <task-id> --status running

If the task has no worktree, you are in sequential mode on the objective branch. That is fine and expected — the prohibitions above are unchanged.

Step 3 — implement, inside scope

Before every edit, ask whether the path is inside scope[]. Scope is not bureaucracy: concurrent workers rely on disjoint scopes to avoid conflicts that no one can resolve later.

When the task genuinely cannot be completed inside its scope, you have three legitimate moves — pick one and say so:

1. do the in-scope part, record the rest as a blocking followup;
2. stop and report back to the orchestrator that the graph needs a new task;
3. if a dependency's handoff was wrong, say that explicitly rather than patching around it.

Silently editing outside scope is not one of them. handoff.sh emit will refuse it.

Step 4 — Tier 1 validation

Run only what is relevant to your change:

• tests that exercise the files you touched;
• lint and typecheck scoped to those files where the tooling supports it;
• the build only if your change could plausibly break it.

Do not run the full suite. Do not run cross-platform matrices. Do not run CI locally. If the repo has no way to scope its tests, say so, run the narrowest thing that exists, and record it. Choosing the right command: references/tier-1-validation.md.

Every command you run becomes a --validation entry with its real result. A command you did not run must not appear in the handoff.

Step 5 — commit

One or a few focused commits on the task branch. Repo commit convention applies (<type>(<scope>): <description>). Never amend or rebase commits from another task.

git add <paths inside scope>
git commit -m "feat(auth): add argon2id password hashing"
git rev-parse --short HEAD

Step 6 — emit the handoff

The handoff is your entire output. The integrator will never read your reasoning — only this file.

H=skills/dev-workflow/_shared/scripts/handoff.sh
bash $H emit auth-system task-001 --status completed \
  --summary "Password hashing + session issuance. Sessions are opaque tokens, not JWTs — see decision." \
  --branch worker/auth-system/001 \
  --commit a1b2c3d \
  --file 'src/auth/hash.ts:added' --file 'src/auth/session.ts:added' \
  --validation 'npm test -- src/auth|worker|pass|14 passed' \
  --validation 'npx tsc --noEmit -p src/auth|worker|pass' \
  --decision 'argon2id over bcrypt|OWASP 2024 guidance' \
  --risk 'no login rate limiting yet|medium|followup task' \
  --followup 'add login rate limiting|true|implementer'
bash $H validate auth-system task-001
bash $S task-set auth-system task-001 --status completed

If you would rather assemble the document yourself — a long summary, nested decisions, anything awkward to pass as flags — write the JSON to a file and install it with handoff.sh write, which applies the same checks:

bash $H write auth-system task-001 /tmp/handoff.json
bash $H read  auth-system task-001

Status honestly: completed only when the task's goal actually holds. Otherwise partial, failed, or blocked — with the reason in summary. A completed handoff with an empty validation[] is a warning for good reason: it is a claim with no evidence.

Include in decisions anything the integrator or a later task would otherwise have to reverse-engineer: a chosen approach, an interface another task will consume, a deviation from the plan.

Step 7 — stop

Report to whoever dispatched you: task id, status, commits, what you validated, decisions, risks, followups. Then stop. Do not push, do not open a PR, do not start the next task, do not "helpfully" begin integration.

Anti-patterns

Output format

Task: <task-id> (<role>) of objective <id>
Scope: <globs>
Status: completed | partial | failed | blocked
Commits: <shas>
Tier 1: <commands + results>
Decisions: <the ones the integrator needs>
Risks / Followups: <…>
Handoff: .dev-files/objectives/<id>/handoffs/<task-id>.json