| name | work |
| description | Execute Elixir/Phoenix plan tasks with progress tracking. Use after /phx:plan to implement features with mix compile and mix test verification after each step, or --continue to resume interrupted work. |
| effort | high |
| argument-hint | <path to plan file> |
Work
Execute tasks from a plan file with checkpoint tracking and verification.
Usage
/phx:work .claude/plans/user-auth/plan.md
/phx:work .claude/plans/user-auth/plan.md --from P2-T3
/phx:work --skip-blockers
/phx:work # Resumes most recent plan
Arguments
<plan-file> -- Path to plan file (optional, auto-detects recent)--from <task-id> -- Resume from specific task (e.g., P2-T3)--skip-blockers -- Continue past blocked tasks--continue -- Resume IN_PROGRESS plan from checkboxes
Iron Laws (NON-NEGOTIABLE)
- NEVER auto-proceed to /phx:review or any next workflow
phase -- always ask the user what to do next
- AUTO-CONTINUE between plan phases -- when Phase N completes,
immediately start Phase N+1. Do NOT stop or ask for permission
between phases. Only stop at BLOCKERS or when ALL phases are done.
- Plan checkboxes ARE the state --
[x] = done, [ ] = pending.
No separate JSON state files. Resume by reading the plan.
- Verify after EVERY task -- never skip verification
- Max 3 retries then BLOCKER -- don't keep retrying forever
- Stage specific files -- never use
git add -A or git add .
- Read scratchpad BEFORE implementing -- scratchpad has dead-ends
and decisions that prevent rework. Step 2 is not optional.
- Clarify ambiguous tasks -- ask the user rather than guessing
when a plan task's intent is unclear
Step 1: Research Decision
Ask the user for plans with >3 tasks:
This plan has {count} remaining tasks across {count} phases.
- Start working -- Begin immediately (familiar patterns)
- Quick research -- Read source files first (~10 min)
- Extensive research -- Web search + docs (~30 min)
Skip for plans with 3 or fewer simple tasks -- just start.
Split warning: Plans with >10 tasks risk 2-3 context
compactions. Suggest splitting via /phx:plan if not already.
Step 2: Check Context (MANDATORY)
Read scratchpad and compound docs before writing any code — skipping
this causes rework. Read .claude/plans/{slug}/scratchpad.md (short,
critical context) for dead-ends and decisions, then Grep .claude/solutions/
for solved patterns. Apply findings: skip dead-ends, follow decisions,
reuse patterns. Ask the user when a task's intent is ambiguous — never
guess, corrections are expensive.
Step 3: Load, Create Task List, and Resume
Read plan file, count [x] (completed) vs [ ] (remaining).
Find first unchecked task by [Pn-Tm] ID.
Create Claude Code tasks from ALL unchecked plan items using
TaskCreate. This gives real-time progress visibility in the UI:
For each unchecked `- [ ] [Pn-Tm] Description`:
TaskCreate({
subject: "[Pn-Tm] Description",
description: "Full task details from plan",
activeForm: "Implementing: Description"
})
Skip already-checked items ([x]) — don't create tasks for them.
Set up blockedBy dependencies between phases (Phase 2 tasks
blocked by Phase 1 tasks).
With --from P2-T3: Skip to that specific task.
Stale-plan check: if the plan predates this session (file mtime), spot-check
2-3 files it references before executing — assumptions may have drifted.
See ${CLAUDE_SKILL_DIR}/references/resume-strategies.md for all resume modes.
Step 4: Execute Tasks
Execute each unchecked task (- [ ] [Pn-Tm][agent] Description):
- Start task:
TaskUpdate({taskId, status: "in_progress"})
- Route by
[agent] annotation (see ${CLAUDE_SKILL_DIR}/references/execution-guide.md)
- Implement the task
- Verify:
mix format + mix compile --warnings-as-errors
(at phase end, also run mix test <affected> — see tiers below)
- Complete task: Mark checkbox
[x] on pass, append
implementation note inline, AND
TaskUpdate({taskId, status: "completed"}). Example:
- [x] [P1-T3] Add user schema — citext for email, composite index on [user_id, status]
This survives context compaction; the plan is re-read on resume.
- On failure: retry up to 3 times, then create BLOCKER
and write DEAD-END to scratchpad (see error-recovery.md)
Parallel groups: Tasks under ### Parallel: header spawn
as background subagents. See ${CLAUDE_SKILL_DIR}/references/execution-guide.md
for spawning pattern, prompt template, and checkpoint flow.
Verification tiers (scoped to minimize redundant runs):
- Per-task:
mix compile --warnings-as-errors only
(format is checked by PostToolUse hook automatically)
- Per-phase:
mix compile --warnings-as-errors + mix test <affected_files> + mix credo --strict
(scope tests: mix test test/path/to_affected_test.exs — NOT full suite)
- Per-feature (Tidewave): behavioral smoke test via
project_eval
(create record, fetch, verify -- see execution-guide.md)
- Final gate:
mix test (full suite — run ONCE at the end, not per-phase)
Token efficiency: Do NOT narrate each verification step. Execute
tool calls directly without "Let me now run..." preamble. Only narrate
when explaining a non-obvious decision or reporting a failure. When
several checkboxes complete together (parallel groups, resume catch-up),
batch them into ONE edit pass — never one Edit call per checkbox.
The PostToolUse hook checks formatting but does NOT modify files —
run mix format explicitly during verification or before committing.
Step 5: Completion
Summarize results with AskUserQuestion:
Implementation complete! {done}/{total} tasks finished.
{count} files modified across {count} phases.
Options: 1. Run review (/phx:review) (Recommended),
2. Get a briefing (/phx:brief — understand what was built),
3. Commit changes (/commit), 4. Continue manually.
If any task fixed a non-obvious bug, also mention /phx:compound
to capture the solution.
With blockers: list them, offer Replan (/phx:plan),
Review first (/phx:review), or Handle myself.
If blockers remain, auto-write HANDOFF to scratchpad:
### [HH:MM] HANDOFF: {plan name}
Status: {done}/{total} tasks. Blockers: {list}.
Next: {first unchecked task ID and description}.
Key decisions: {brief list from this session}.
Include context beyond checkboxes for fresh session resume.
NEVER auto-start /phx:review or any other phase.
Step 6: Check for Additional Plans
After completion, use Glob to find other plan files matching
.claude/plans/*/plan.md. If pending plans exist, inform the
user. Do NOT auto-start.
Integration
/phx:plan → /phx:work (YOU ARE HERE) → /phx:review → /phx:compound
↑ ASK USER before each transition
References
${CLAUDE_SKILL_DIR}/references/execution-guide.md -- Task routing, parallel execution, verification${CLAUDE_SKILL_DIR}/references/resume-strategies.md -- Resume modes and state persistence${CLAUDE_SKILL_DIR}/references/file-formats.md -- Plan and progress file formats${CLAUDE_SKILL_DIR}/references/error-recovery.md -- Error handling and blockers${CLAUDE_SKILL_DIR}/references/harness-patterns.md -- Critic-refiner pattern for debugging loops
