<purpose>
Execute a phase prompt (PLAN.md) and create the outcome summary (SUMMARY.md).
</purpose>

<required_reading>
Read STATE.md before any operation to load project context.
Read config.json for planning behavior settings.

@~/.claude/get-shit-done/references/git-integration.md
</required_reading>

<available_agent_types>
Valid GSD subagent types (use exact names — do not fall back to 'general-purpose'):
- gsd-executor — Executes plan tasks, commits, creates SUMMARY.md
</available_agent_types>

<process>

<step name="init_context" priority="first">
Load execution context (paths only to minimize orchestrator context):

```bash
INIT=$(gsd-sdk query init.execute-phase "${PHASE}")
if [[ "$INIT" == @file:* ]]; then INIT=$(cat "${INIT#@file:}"); fi
```

Extract from init JSON: `executor_model`, `commit_docs`, `sub_repos`, `phase_dir`, `phase_number`, `plans`, `summaries`, `incomplete_plans`, `state_path`, `config_path`.

If `.planning/` missing: error.
</step>

<step name="identify_plan">
```bash
# Use plans/summaries from INIT JSON, or list files
(ls .planning/phases/XX-name/*-PLAN.md 2>/dev/null || true) | sort
(ls .planning/phases/XX-name/*-SUMMARY.md 2>/dev/null || true) | sort
```

Find first PLAN without matching SUMMARY. Decimal phases supported (`01.1-hotfix/`):

```bash
PHASE=$(echo "$PLAN_PATH" | grep -oE '[0-9]+(\.[0-9]+)?-[0-9]+')
# config settings can be fetched via gsd-sdk query config-get if needed
```

<if mode="yolo">
Auto-approve: `⚡ Execute {phase}-{plan}-PLAN.md [Plan X of Y for Phase Z]` → parse_segments.
</if>

<if mode="interactive" OR="custom with gates.execute_next_plan true">
Present plan identification, wait for confirmation.
</if>
</step>

<step name="record_start_time">
```bash
PLAN_START_TIME=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
PLAN_START_EPOCH=$(date +%s)
```
</step>

<step name="parse_segments">
```bash
# Count tasks — match <task tag at any indentation level
TASK_COUNT=$(grep -cE '^\s*<task[[:space:]>]' .planning/phases/XX-name/{phase}-{plan}-PLAN.md 2>/dev/null || echo "0")
INLINE_THRESHOLD=$(gsd-sdk query config-get workflow.inline_plan_threshold 2>/dev/null || echo "2")
grep -n "type=\"checkpoint" .planning/phases/XX-name/{phase}-{plan}-PLAN.md
```

**Primary routing: task count threshold (#1979)**

If `INLINE_THRESHOLD > 0` AND `TASK_COUNT <= INLINE_THRESHOLD`: Use Pattern C (inline) regardless of checkpoint type. Small plans execute faster inline — avoids ~14K token subagent spawn overhead and preserves prompt cache. Configure threshold via `workflow.inline_plan_threshold` (default: 2, set to `0` to always spawn subagents).

Otherwise: Apply checkpoint-based routing below.

**Checkpoint-based routing (plans with > threshold tasks):**

| Checkpoints | Pattern | Execution |
|-------------|---------|-----------|
| None | A (autonomous) | Single subagent: full plan + SUMMARY + commit |
| Verify-only | B (segmented) | Segments between checkpoints. After none/human-verify → SUBAGENT. After decision/human-action → MAIN |
| Decision | C (main) | Execute entirely in main context |

**Pattern A:** init_agent_tracking → capture `EXPECTED_BASE=$(git rev-parse HEAD)` → spawn Task(subagent_type="gsd-executor", model=executor_model) with prompt: execute plan at [path], autonomous, all tasks + SUMMARY + commit, follow deviation/auth rules, report: plan name, tasks, SUMMARY path, commit hash → track agent_id → wait → update tracking → report. **Include `isolation="worktree"` only if `workflow.use_worktrees` is not `false`** (read via `config-get workflow.use_worktrees`). **When using `isolation="worktree"`, include a `<worktree_branch_check>` block in the prompt** instructing the executor to run `git merge-base HEAD {EXPECTED_BASE}` and, if the result differs from `{EXPECTED_BASE}`, hard-reset the branch with `git reset --hard {EXPECTED_BASE}` before starting work (safe — runs before any agent work), then verify with `[ "$(git rev-parse HEAD)" != "{EXPECTED_BASE}" ] && exit 1`. This corrects a known issue where `EnterWorktree` creates branches from `main` instead of the feature branch HEAD (affects all platforms).

**Pattern B:** Execute segment-by-segment. Autonomous segments: spawn subagent for assigned tasks only (no SUMMARY/commit). Checkpoints: main context. After all segments: aggregate, create SUMMARY, commit. See segment_execution.

**Pattern C:** Execute in main using standard flow (step name="execute").

Fresh context per subagent preserves peak quality. Main context stays lean.
</step>

<step name="init_agent_tracking">
```bash
if [ ! -f .planning/agent-history.json ]; then
  echo '{"version":"1.0","max_entries":50,"entries":[]}' > .planning/agent-history.json
fi
rm -f .planning/current-agent-id.txt
if [ -f .planning/current-agent-id.txt ]; then
  INTERRUPTED_ID=$(cat .planning/current-agent-id.txt)
  echo "Found interrupted agent: $INTERRUPTED_ID"
fi
```

If interrupted: ask user to resume (Task `resume` parameter) or start fresh.

**Tracking protocol:** On spawn: write agent_id to `current-agent-id.txt`, append to agent-history.json: `{"agent_id":"[id]","task_description":"[desc]","phase":"[phase]","plan":"[plan]","segment":[num|null],"timestamp":"[ISO]","status":"spawned","completion_timestamp":null}`. On completion: status → "completed", set completion_timestamp, delete current-agent-id.txt. Prune: if entries > max_entries, remove oldest "completed" (never "spawned").

Run for Pattern A/B before spawning. Pattern C: skip.
</step>

<step name="segment_execution">
Pattern B only (verify-only checkpoints). Skip for A/C.

1. Parse segment map: checkpoint locations and types
2. Per segment:
   - Subagent route: spawn gsd-executor for assigned tasks only. Prompt: task range, plan path, read full plan for context, execute assigned tasks, track deviations, NO SUMMARY/commit. Track via agent protocol.
   - Main route: execute tasks using standard flow (step name="execute")
3. After ALL segments: aggregate files/deviations/decisions → create SUMMARY.md → commit → self-check:
   - Verify key-files.created exist on disk with `[ -f ]`
   - Check `git log --oneline --all --grep="{phase}-{plan}"` returns ≥1 commit
   - Re-run ALL `<acceptance_criteria>` from every task — if any fail, fix before finalizing SUMMARY
   - Re-run the plan-level `<verification>` commands — log results in SUMMARY
   - Append `## Self-Check: PASSED` or `## Self-Check: FAILED` to SUMMARY

   **Known Claude Code bug (classifyHandoffIfNeeded):** If any segment agent reports "failed" with `classifyHandoffIfNeeded is not defined`, this is a Claude Code runtime bug — not a real failure. Run spot-checks; if they pass, treat as successful.




</step>

<step name="load_prompt">
```bash
cat .planning/phases/XX-name/{phase}-{plan}-PLAN.md
```
This IS the execution instructions. Follow exactly. If plan references CONTEXT.md: honor user's vision throughout.

**If plan contains `<interfaces>` block:** These are pre-extracted type definitions and contracts. Use them directly — do NOT re-read the source files to discover types. The planner already extracted what you need.
</step>

<step name="previous_phase_check">
```bash
gsd-sdk query phases.list --type summaries --raw
# Extract the second-to-last summary from the JSON result
```

**Text mode (`workflow.text_mode: true` in config or `--text` flag):** Set `TEXT_MODE=true` if `--text` is present in `$ARGUMENTS` OR `text_mode` from init JSON is `true`. When TEXT_MODE is active, replace every `AskUserQuestion` call with a plain-text numbered list and ask the user to type their choice number. This is required for non-Claude runtimes (OpenAI Codex, Gemini CLI, etc.) where `AskUserQuestion` is not available.
If previous SUMMARY has unresolved "Issues Encountered" or "Next Phase Readiness" blockers: AskUserQuestion(header="Previous Issues", options: "Proceed anyway" | "Address first" | "Review previous").
</step>

<step name="execute">
Deviations are normal — handle via rules below.

1. Read @context files from prompt
2. **MCP tools:** If CLAUDE.md or project instructions reference MCP tools (e.g. jCodeMunch for code navigation), prefer them over Grep/Glob when available. Fall back to Grep/Glob if MCP tools are not accessible.
3. Per task:
   - **MANDATORY read_first gate:** If the task has a `<read_first>` field, you MUST read every listed file BEFORE making any edits. This is not optional. Do not skip files because you "already know" what's in them — read them. The read_first files establish ground truth for the task.
   - `type="auto"`: if `tdd="true"` → TDD execution. Implement with deviation rules + auth gates. Verify done criteria. Commit (see task_commit). Track hash for Summary.
   - `type="checkpoint:*"`: STOP → checkpoint_protocol → wait for user → continue only after confirmation.
   - **HARD GATE — acceptance_criteria verification:** After completing each task, if it has `<acceptance_criteria>`, you MUST run a verification loop before proceeding:
     1. For each criterion: execute the grep, file check, or CLI command that proves it passes
     2. Log each result as PASS or FAIL with the command output
     3. If ANY criterion fails: fix the implementation immediately, then re-run ALL criteria
     4. Repeat until all criteria pass — you are BLOCKED from starting the next task until this gate clears
     5. If a criterion cannot be satisfied after 2 fix attempts, log it as a deviation with reason — do NOT silently skip it
     This is not advisory. A task with failing acceptance criteria is an incomplete task.
3. Run `<verification>` checks
4. Confirm `<success_criteria>` met
5. Document deviations in Summary
</step>

<authentication_gates>

## Authentication Gates

Auth errors during execution are NOT failures — they're expected interaction points.

**Indicators:** "Not authenticated", "Unauthorized", 401/403, "Please run {tool} login", "Set {ENV_VAR}"

**Protocol:**
1. Recognize auth gate (not a bug)
2. STOP task execution
3. Create dynamic checkpoint:human-action with exact auth steps
4. Wait for user to authenticate
5. Verify credentials work
6. Retry original task
7. Continue normally

**Example:** `vercel --yes` → "Not authenticated" → checkpoint asking user to `vercel login` → verify with `vercel whoami` → retry deploy → continue

**In Summary:** Document as normal flow under "## Authentication Gates", not as deviations.

</authentication_gates>

<deviation_rules>

## Deviation Rules

Apply deviation rules from the gsd-executor agent definition (single source of truth):
- **Rules 1-3** (bugs, missing critical, blockers): auto-fix, test, verify, track as deviations
- **Rule 4** (architectural changes): STOP, present decision to user, await approval
- **Scope boundary**: do not auto-fix pre-existing issues unrelated to current task
- **Fix attempt limit**: max 3 retries per deviation before escalating
- **Priority**: Rule 4 (STOP) > Rules 1-3 (auto) > unsure → Rule 4

</deviation_rules>

<deviation_documentation>

## Documenting Deviations

Summary MUST include deviations section. None? → `## Deviations from Plan\n\nNone - plan executed exactly as written.`

Per deviation: **[Rule N - Category] Title** — Found during: Task X | Issue | Fix | Files modified | Verification | Commit hash

End with: **Total deviations:** N auto-fixed (breakdown). **Impact:** assessment.

</deviation_documentation>

<tdd_plan_execution>
## TDD Execution

For `type: tdd` plans — RED-GREEN-REFACTOR:

1. **Infrastructure** (first TDD plan only): detect project, install framework, config, verify empty suite
2. **RED:** Read `<behavior>` → failing test(s) → run (MUST fail) → commit: `test({phase}-{plan}): add failing test for [feature]`
3. **GREEN:** Read `<implementation>` → minimal code → run (MUST pass) → commit: `feat({phase}-{plan}): implement [feature]`
4. **REFACTOR:** Clean up → tests MUST pass → commit: `refactor({phase}-{plan}): clean up [feature]`

Errors: RED doesn't fail → investigate test/existing feature. GREEN doesn't pass → debug, iterate. REFACTOR breaks → undo.

See `~/.claude/get-shit-done/references/tdd.md` for structure.
</tdd_plan_execution>

<precommit_failure_handling>
## Pre-commit Hook Failure Handling

Your commits may trigger pre-commit hooks. Auto-fix hooks handle themselves transparently — files get fixed and re-staged automatically.

**If running as a parallel executor agent (spawned by execute-phase):**
Use `--no-verify` on all commits. Pre-commit hooks cause build lock contention when multiple agents commit simultaneously (e.g., cargo lock fights in Rust projects). The orchestrator validates once after all agents complete.

**If running as the sole executor (sequential mode):**
If a commit is BLOCKED by a hook:

1. The `git commit` command fails with hook error output
2. Read the error — it tells you exactly which hook and what failed
3. Fix the issue (type error, lint violation, secret leak, etc.)
4. `git add` the fixed files
5. Retry the commit
6. Budget 1-2 retry cycles per commit
</precommit_failure_handling>

<task_commit>
## Task Commit Protocol

Canonical per-task commit rules live in **`agents/gsd-executor.md`** (`<task_commit_protocol>`). Follow that section for staging, `{type}({phase}-{plan})` messages, `commit-to-subrepo` when `sub_repos` is set, post-commit checks, and untracked-file handling — do not duplicate or paraphrase the full protocol here (single source of truth).

**Orchestrator note:** After each task, the spawned executor reports commit hashes; this workflow does not re-specify commit semantics beyond pointing at the executor.

</task_commit>

<step name="checkpoint_protocol">
On `type="checkpoint:*"`: automate everything possible first. Checkpoints are for verification/decisions only.

Display: `CHECKPOINT: [Type]` box → Progress {X}/{Y} → Task name → type-specific content → `YOUR ACTION: [signal]`

| Type | Content | Resume signal |
|------|---------|---------------|
| human-verify (90%) | What was built + verification steps (commands/URLs) | "approved" or describe issues |
| decision (9%) | Decision needed + context + options with pros/cons | "Select: option-id" |
| human-action (1%) | What was automated + ONE manual step + verification plan | "done" |

After response: verify if specified. Pass → continue. Fail → inform, wait. WAIT for user — do NOT hallucinate completion.

See ~/.claude/get-shit-done/references/checkpoints.md for details.
</step>

<step name="checkpoint_return_for_orchestrator">
When spawned via Task and hitting checkpoint: return structured state (cannot interact with user directly).

**Required return:** 1) Completed Tasks table (hashes + files) 2) Current Task (what's blocking) 3) Checkpoint Details (user-facing content) 4) Awaiting (what's needed from user)

Orchestrator parses → presents to user → spawns fresh continuation with your completed tasks state. You will NOT be resumed. In main context: use checkpoint_protocol above.
</step>

<step name="verification_failure_gate">
If verification fails:

**Check if node repair is enabled** (default: on):
```bash
NODE_REPAIR=$(gsd-sdk query config-get workflow.node_repair 2>/dev/null || echo "true")
```

If `NODE_REPAIR` is `true`: invoke `@./.claude/get-shit-done/workflows/node-repair.md` with:
- FAILED_TASK: task number, name, done-criteria
- ERROR: expected vs actual result
- PLAN_CONTEXT: adjacent task names + phase goal
- REPAIR_BUDGET: `workflow.node_repair_budget` from config (default: 2)

Node repair will attempt RETRY, DECOMPOSE, or PRUNE autonomously. Only reaches this gate again if repair budget is exhausted (ESCALATE).

If `NODE_REPAIR` is `false` OR repair returns ESCALATE: STOP. Present: "Verification failed for Task [X]: [name]. Expected: [criteria]. Actual: [result]. Repair attempted: [summary of what was tried]." Options: Retry | Skip (mark incomplete) | Stop (investigate). If skipped → SUMMARY "Issues Encountered".
</step>

<step name="record_completion_time">
```bash
PLAN_END_TIME=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
PLAN_END_EPOCH=$(date +%s)

DURATION_SEC=$(( PLAN_END_EPOCH - PLAN_START_EPOCH ))
DURATION_MIN=$(( DURATION_SEC / 60 ))

if [[ $DURATION_MIN -ge 60 ]]; then
  HRS=$(( DURATION_MIN / 60 ))
  MIN=$(( DURATION_MIN % 60 ))
  DURATION="${HRS}h ${MIN}m"
else
  DURATION="${DURATION_MIN} min"
fi
```
</step>

<step name="generate_user_setup">
```bash
grep -A 50 "^user_setup:" .planning/phases/XX-name/{phase}-{plan}-PLAN.md | head -50
```

If user_setup exists: create `{phase}-USER-SETUP.md` using template `~/.claude/get-shit-done/templates/user-setup.md`. Per service: env vars table, account setup checklist, dashboard config, local dev notes, verification commands. Status "Incomplete". Set `USER_SETUP_CREATED=true`. If empty/missing: skip.
</step>

<step name="create_summary">
Create `{phase}-{plan}-SUMMARY.md` at `.planning/phases/XX-name/`. Use `~/.claude/get-shit-done/templates/summary.md`.

**Frontmatter:** phase, plan, subsystem, tags | requires/provides/affects | tech-stack.added/patterns | key-files.created/modified | key-decisions | requirements-completed (**MUST** copy `requirements` array from PLAN.md frontmatter verbatim) | duration ($DURATION), completed ($PLAN_END_TIME date).

Title: `# Phase [X] Plan [Y]: [Name] Summary`

One-liner SUBSTANTIVE: "JWT auth with refresh rotation using jose library" not "Authentication implemented"

Include: duration, start/end times, task count, file count.

Next: more plans → "Ready for {next-plan}" | last → "Phase complete, ready for next step".
</step>

<step name="update_current_position">
**Skip this step if running in parallel mode** (the orchestrator in execute-phase.md
handles STATE.md/ROADMAP.md updates centrally after merging worktrees to avoid
merge conflicts).

Update STATE.md using gsd-sdk query (or legacy gsd-tools) state mutations:

```bash
# Auto-detect parallel mode: .git is a file in worktrees, a directory in main repo
IS_WORKTREE=$([ -f .git ] && echo "true" || echo "false")

# Skip in parallel mode — orchestrator handles STATE.md centrally
if [ "$IS_WORKTREE" != "true" ]; then
  # Advance plan counter (handles last-plan edge case)
  gsd-sdk query state.advance-plan

  # Recalculate progress bar from disk state
  gsd-sdk query state.update-progress

  # Record execution metrics
  gsd-sdk query state.record-metric \
    --phase "${PHASE}" --plan "${PLAN}" --duration "${DURATION}" \
    --tasks "${TASK_COUNT}" --files "${FILE_COUNT}"
fi
```
</step>

<step name="extract_decisions_and_issues">
From SUMMARY: Extract decisions and add to STATE.md:

```bash
# Add each decision from SUMMARY key-decisions
# Prefer file inputs for shell-safe text (preserves `$`, `*`, etc. exactly)
gsd-sdk query state.add-decision \
  --phase "${PHASE}" --summary-file "${DECISION_TEXT_FILE}" --rationale-file "${RATIONALE_FILE}"

# Add blockers if any found
gsd-sdk query state.add-blocker --text-file "${BLOCKER_TEXT_FILE}"
```
</step>

<step name="update_session_continuity">
Update session info using gsd-sdk query (or legacy gsd-tools):

```bash
gsd-sdk query state.record-session \
  --stopped-at "Completed ${PHASE}-${PLAN}-PLAN.md" \
  --resume-file "None"
```

Keep STATE.md under 150 lines.
</step>

<step name="issues_review_gate">
If SUMMARY "Issues Encountered" ≠ "None": yolo → log and continue. Interactive → present issues, wait for acknowledgment.
</step>

<step name="update_roadmap">
**Skip this step if running in parallel mode** (the orchestrator handles ROADMAP.md
updates centrally after merging worktrees).

```bash
# Auto-detect parallel mode: .git is a file in worktrees, a directory in main repo
IS_WORKTREE=$([ -f .git ] && echo "true" || echo "false")

# Skip in parallel mode — orchestrator handles ROADMAP.md centrally
if [ "$IS_WORKTREE" != "true" ]; then
  gsd-sdk query roadmap.update-plan-progress "${PHASE}"
fi
```
Counts PLAN vs SUMMARY files on disk. Updates progress table row with correct count and status (`In Progress` or `Complete` with date).
</step>

<step name="update_requirements">
Mark completed requirements from the PLAN.md frontmatter `requirements:` field:

```bash
gsd-sdk query requirements.mark-complete ${REQ_IDS}
```

Extract requirement IDs from the plan's frontmatter (e.g., `requirements: [AUTH-01, AUTH-02]`). If no requirements field, skip.
</step>

<step name="git_commit_metadata">
Task code already committed per-task. Commit plan metadata:

```bash
# Auto-detect parallel mode: .git is a file in worktrees, a directory in main repo
IS_WORKTREE=$([ -f .git ] && echo "true" || echo "false")

# In parallel mode: exclude STATE.md and ROADMAP.md (orchestrator commits these)
if [ "$IS_WORKTREE" = "true" ]; then
  gsd-sdk query commit "docs({phase}-{plan}): complete [plan-name] plan" .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/REQUIREMENTS.md
else
  gsd-sdk query commit "docs({phase}-{plan}): complete [plan-name] plan" .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/STATE.md .planning/ROADMAP.md .planning/REQUIREMENTS.md
fi
```
</step>

<step name="update_codebase_map">
If .planning/codebase/ doesn't exist: skip.

```bash
FIRST_TASK=$(git log --oneline --grep="feat({phase}-{plan}):" --grep="fix({phase}-{plan}):" --grep="test({phase}-{plan}):" --reverse | head -1 | cut -d' ' -f1)
git diff --name-only ${FIRST_TASK}^..HEAD 2>/dev/null || true
```

Update only structural changes: new src/ dir → STRUCTURE.md | deps → STACK.md | file pattern → CONVENTIONS.md | API client → INTEGRATIONS.md | config → STACK.md | renamed → update paths. Skip code-only/bugfix/content changes.

```bash
gsd-sdk query commit "" .planning/codebase/*.md --amend
```
</step>

<step name="offer_next">
If `USER_SETUP_CREATED=true`: display `⚠️ USER SETUP REQUIRED` with path + env/config tasks at TOP.

```bash
(ls -1 .planning/phases/[current-phase-dir]/*-PLAN.md 2>/dev/null || true) | wc -l
(ls -1 .planning/phases/[current-phase-dir]/*-SUMMARY.md 2>/dev/null || true) | wc -l
```

| Condition | Route | Action |
|-----------|-------|--------|
| summaries < plans | **A: More plans** | Find next PLAN without SUMMARY. Yolo: auto-continue. Interactive: show next plan, suggest `/gsd-execute-phase {phase}` + `/gsd-verify-work`. STOP here. |
| summaries = plans, current < highest phase | **B: Phase done** | Show completion, suggest `/gsd-plan-phase {Z+1}` + `/gsd-verify-work {Z}` + `/gsd-discuss-phase {Z+1}` |
| summaries = plans, current = highest phase | **C: Milestone done** | Show banner, suggest `/gsd-complete-milestone` + `/gsd-verify-work` + `/gsd-add-phase` |

All routes: `/clear` first for fresh context.
</step>

</process>

<success_criteria>

- All tasks from PLAN.md completed
- All verifications pass
- USER-SETUP.md generated if user_setup in frontmatter
- SUMMARY.md created with substantive content
- STATE.md updated (position, decisions, issues, session) — unless parallel mode (orchestrator handles)
- ROADMAP.md updated — unless parallel mode (orchestrator handles)
- If codebase map exists: map updated with execution changes (or skipped if no significant changes)
- If USER-SETUP.md created: prominently surfaced in completion output
</success_criteria>
