orchestrator

name	orchestrator
description	Thin orchestrator for Task Decomposition Protocol v2. Supports two modes - /plan (decompose spec into tasks) and /execute (run tasks via subagents). Delegates all state management to the tasker CLI. Use when this capability is needed.
metadata	{"author":"dowwie"}

Orchestrator v2

A thin coordination layer with two distinct modes:

• Plan Mode (/plan) - Decompose spec into task DAG
• Execute Mode (/execute) - Run tasks via isolated subagents

Workflow Integration

The full workflow from requirements to implementation:

/specify → /plan → /execute

Skill	Purpose	Input	Output
/specify	Design vision & capabilities	User requirements	{TARGET}/docs/specs/<slug>.md + .capabilities.json + ADRs
/plan	DAG construction (files → tasks)	Spec + capability map	Task DAG in .tasker/tasks/
/execute	Implementation	Task DAG	Working code

Entry points:

• From scratch → Run /specify first to develop spec and extract capabilities
• Existing spec → Run /plan {TARGET}/docs/specs/<slug>.md directly (may need capability extraction)
• From /specify → Run /plan {TARGET}/docs/specs/<slug>.md (skips to physical mapping)

Philosophy

The orchestrator does NOT:

• Track state itself (tasker CLI does this)
• Validate artifacts (tasker CLI does this)
• Compute ready tasks (tasker CLI does this)

The orchestrator ONLY:

• Queries state via tasker state
• Dispatches agents based on mode/phase
• Handles user interaction
• Ensures commits happen via .claude/hooks/post-task-commit.sh (defense in depth)

---

Directory Initialization (After target_dir is known)

CRITICAL: After obtaining target_dir from the user, the orchestrator MUST initialize the .tasker/ directory structure. This is the ONLY place where directories are created - sub-agents assume directories already exist.

Setup (Run after target_dir is confirmed)

Initialize the .tasker/ directory structure:

TASKER_DIR="$TARGET_DIR/.tasker"
mkdir -p "$TASKER_DIR"/{artifacts,inputs,tasks,reports,bundles,logs}

This creates:

• $TARGET_DIR/.tasker/artifacts/ - For capability-map.json, physical-map.json
• $TARGET_DIR/.tasker/inputs/ - For spec.md
• $TARGET_DIR/.tasker/tasks/ - For T001.json, T002.json, etc.
• $TARGET_DIR/.tasker/reports/ - For task-validation-report.md
• $TARGET_DIR/.tasker/bundles/ - For execution bundles
• $TARGET_DIR/.tasker/logs/ - For activity logging

Set TASKER_DIR as the working directory for all operations:

TASKER_DIR="$TARGET_DIR/.tasker"
echo "TASKER_DIR: $TASKER_DIR"

Why centralized initialization?

1. Reliability: Sub-agents run in isolated contexts and directory creation has been unreliable
2. Single responsibility: Orchestrator owns the directory structure, sub-agents own the content
3. Fail-fast: If directory creation fails, we catch it immediately rather than mid-workflow

IMPORTANT: Sub-agents must NOT create directories. They assume the directory structure already exists. If a sub-agent encounters a "directory does not exist" error, it indicates the orchestrator failed to initialize properly.

Runtime Logging (MANDATORY)

All orchestrator activity and sub-agent activity MUST be logged using ./scripts/log-activity.sh.

Logging Script Usage

./scripts/log-activity.sh <LEVEL> <AGENT> <EVENT> "<MESSAGE>"

Parameters:

• LEVEL: INFO, WARN, ERROR
• AGENT: orchestrator, logic-architect, physical-architect, task-author, etc.
• EVENT: start, decision, tool, complete, spawn, spawn-complete, phase-transition, validation
• MESSAGE: Description of the activity

Orchestrator Logging Examples

./scripts/log-activity.sh INFO orchestrator phase-transition "moving from logical to physical"
./scripts/log-activity.sh INFO orchestrator spawn "launching logic-architect for capability extraction"
./scripts/log-activity.sh INFO orchestrator spawn-complete "logic-architect finished with SUCCESS"
./scripts/log-activity.sh INFO orchestrator validation "capability_map - PASSED"

Sub-Agent Logging Instructions

CRITICAL: Include these logging instructions in EVERY sub-agent spawn prompt. Sub-agents are context-isolated and will not see this skill file - they must receive logging instructions explicitly.

Add this block to every spawn prompt:

## Logging (MANDATORY)

Log your activity using the logging script:

\`\`\`bash
./scripts/log-activity.sh INFO $AGENT_NAME start "Starting task description"
./scripts/log-activity.sh INFO $AGENT_NAME decision "What decision and why"
./scripts/log-activity.sh INFO $AGENT_NAME complete "Outcome description"
./scripts/log-activity.sh WARN $AGENT_NAME warning "Warning message"
./scripts/log-activity.sh ERROR $AGENT_NAME error "Error message"
\`\`\`

Replace $AGENT_NAME with your agent name (e.g., logic-architect, task-executor).

CRITICAL: Path Management

TASKER_DIR must be an absolute path. Sub-agents run in isolated contexts and cannot resolve relative paths correctly.

After obtaining target_dir from user, compute and store:

# Get absolute path to .tasker directory within target project
TARGET_DIR="<user-provided-absolute-path>"
TASKER_DIR="$TARGET_DIR/.tasker"
echo "TASKER_DIR: $TASKER_DIR"

This TASKER_DIR value (e.g., /Users/foo/my-project/.tasker) MUST be passed to every sub-agent spawn. Do NOT use relative paths like .tasker/ in spawn prompts.

NOTE: Throughout this document, TASKER_DIR replaces the old PLANNING_DIR variable. They serve the same purpose.

---

Plan Mode

Triggered by /plan. Runs phases 0-6 (spec review through ready).

MANDATORY FIRST STEP: Ask for Target Project Directory

ALWAYS ask for target_dir FIRST before anything else. No guessing, no inference from CWD.

Step 1: Ask for Target Directory

Use AskUserQuestion to ask:

What is the target project directory?

Free-form text input. User must provide an absolute or relative path.

Validation:

TARGET_DIR="<user-provided-path>"
# Convert to absolute path
TARGET_DIR=$(cd "$TARGET_DIR" 2>/dev/null && pwd || echo "$TARGET_DIR")

if [ ! -d "$TARGET_DIR" ]; then
    # For new projects, check parent exists
    PARENT=$(dirname "$TARGET_DIR")
    if [ -d "$PARENT" ]; then
        echo "Directory will be created: $TARGET_DIR"
        mkdir -p "$TARGET_DIR"
    else
        echo "Error: Parent directory does not exist: $PARENT"
        # Re-ask for target_dir
    fi
fi

Step 2: Check for Existing Session and Initialize

After target_dir is confirmed, check for existing .tasker/ state:

TASKER_DIR="$TARGET_DIR/.tasker"
if [ -f "$TASKER_DIR/state.json" ]; then
    echo "Found existing tasker session at $TASKER_DIR"
    echo "Resuming from saved state..."
    # Read phase from state.json and resume
    tasker state status
else
    echo "No existing session. Initializing..."
    # Initialize directory structure (see Directory Initialization below)
fi

Step 3: Detect Specs (Automatic)

Specs are REQUIRED for /plan to proceed. Check $TARGET_DIR/docs/specs/ for specs from /specify:

SPEC_DIR="$TARGET_DIR/docs/specs"

# Find spec files (from /specify workflow)
SPEC_FILES=$(find "$SPEC_DIR" -maxdepth 1 -name "*.md" 2>/dev/null)
CAP_MAPS=$(find "$SPEC_DIR" -maxdepth 1 -name "*.capabilities.json" 2>/dev/null)

if [ -n "$SPEC_FILES" ]; then
    echo "=== Specs found ==="
    echo "$SPEC_FILES"

    # Use the first spec (or only spec)
    SPEC_PATH=$(echo "$SPEC_FILES" | head -1)
    SPEC_SLUG=$(basename "$SPEC_PATH" .md)

    # Check for matching capability map
    CAP_MAP="$SPEC_DIR/${SPEC_SLUG}.capabilities.json"
    if [ -f "$CAP_MAP" ]; then
        echo "Capability map found: $CAP_MAP"
        echo "Can skip logic-architect phase"
    fi
else
    echo "No specs found in $SPEC_DIR"
    # BLOCK - see below
fi

If spec found:

Proceed to Step 4. No user question needed.

If NO spec found — BLOCK and offer /specify:

/plan CANNOT proceed without specs. Present this to the user:

## Specs Required

Planning requires a specification to decompose into tasks. Without a spec, there's nothing to plan.

**Would you like to create a spec now using `/specify`?**

The `/specify` workflow will guide you through:
1. Defining goals and scope
2. Clarifying requirements through structured questions
3. Extracting capabilities and behaviors
4. Producing a spec ready for `/plan`

Ask using AskUserQuestion:

Would you like to run /specify to create a spec now?

Options:

• Yes, start /specify — Begin the specification workflow
• No, I'll provide a spec later — Exit /plan for now

If user chooses "Yes, start /specify":

1. Invoke the tasker:specify skill with the already-collected target_dir
2. Pass context: TARGET_DIR is already known, skip Step 1 of /specify
3. After /specify completes, automatically return to /plan

If user chooses "No": Exit gracefully with message: "Run /plan again when you have a spec ready, or use /specify to create one."

Step 4: Detect Project Type (Automatic)

Do not ask the user — infer project type from target directory:

# Check if target directory has source code
SOURCE_FILES=$(find "$TARGET_DIR" \( -name "*.py" -o -name "*.ts" -o -name "*.js" -o -name "*.go" -o -name "*.rs" -o -name "*.java" \) \
    -not -path "*node_modules*" -not -path "*__pycache__*" -not -path "*.venv*" -not -path "*/.git/*" 2>/dev/null | head -5)

if [ -n "$SOURCE_FILES" ]; then
    PROJECT_TYPE="existing"
    echo "Detected existing project with source files"
else
    PROJECT_TYPE="new"
    echo "New project (no existing source files)"
fi

• Existing project → Proceed to Step 5 (project analysis)
• New project → Skip to Step 6 (tech stack)

Step 5: Existing Project Analysis (if PROJECT_TYPE=existing)

If enhancing an existing project, you MUST analyze the target directory BEFORE proceeding to ingestion. This analysis is CRITICAL - sub-agents cannot see the codebase, so you must extract and pass this context to them.

# Check directory exists
if [ ! -d "$TARGET_DIR" ]; then
    echo "Error: Target directory does not exist"
    exit 1
fi

# Analyze structure (capture output for context)
echo "=== Project Structure ==="
tree -L 3 -I 'node_modules|__pycache__|.git|venv|.venv|dist|build|.pytest_cache' "$TARGET_DIR" 2>/dev/null || \
    find "$TARGET_DIR" -maxdepth 3 -type f | head -50

# Identify key configuration files
echo "=== Key Configuration Files ==="
for f in package.json pyproject.toml Cargo.toml go.mod Makefile requirements.txt setup.py tsconfig.json; do
    [ -f "$TARGET_DIR/$f" ] && echo "Found: $f"
done

# Detect source layout patterns
echo "=== Source Layout ==="
for d in src lib app pkg cmd internal; do
    [ -d "$TARGET_DIR/$d" ] && echo "Found directory: $d/"
done

# Detect test layout
echo "=== Test Layout ==="
for d in tests test spec __tests__; do
    [ -d "$TARGET_DIR/$d" ] && echo "Found test directory: $d/"
done

# Sample existing code files to understand patterns
echo "=== Code Samples ==="
find "$TARGET_DIR" \( -name "*.py" -o -name "*.ts" -o -name "*.js" -o -name "*.go" -o -name "*.rs" \) \
    -not -path "*node_modules*" -not -path "*__pycache__*" -not -path "*.venv*" | head -10

Read key files to understand patterns:

# Read config files to understand dependencies and structure
[ -f "$TARGET_DIR/pyproject.toml" ] && cat "$TARGET_DIR/pyproject.toml"
[ -f "$TARGET_DIR/package.json" ] && cat "$TARGET_DIR/package.json"

# Sample a few source files to understand coding patterns
# (naming conventions, import style, architecture patterns)

Present findings and store context:

## Existing Project Analysis

**Directory:** /path/to/project
**Stack Detected:** Python 3.11+ (pyproject.toml with uv)
**Source Layout:** src/ with module structure
**Test Layout:** tests/ mirroring src/

**Key Configuration:**
- pyproject.toml: dependencies include fastapi, pydantic, loguru
- Uses ruff for linting, pytest for testing

**Discovered Patterns:**
- Naming: snake_case for files and functions
- Imports: absolute imports from src root
- Architecture: Protocol-based interfaces in src/interfaces/
- Testing: pytest with fixtures in conftest.py

**Key Files:**
- src/main.py (entry point)
- src/interfaces/ (Protocol definitions)
- src/services/ (business logic)
- tests/conftest.py (shared fixtures)

**Integration Considerations:**
- New code must follow existing module structure
- Must use existing Protocols for interfaces
- Tests should extend existing fixtures
- Must pass ruff and existing test suite

Proceed with planning? (y/n)

Tech stack comes from the spec. A well-developed spec (from /specify) includes tech stack requirements. Do not ask for tech stack separately — read it from the spec.

Step 6: Store Discovery Context

CRITICAL: You must retain this analysis for passing to sub-agents. Store it as a structured context block:

PROJECT_CONTEXT = """
Directory: {TARGET_DIR}
Project Type: existing
Stack: {detected stack}
Source Layout: {layout pattern}
Test Layout: {test pattern}

Key Patterns:
- {pattern 1}
- {pattern 2}
- {pattern 3}

Integration Requirements:
- {requirement 1}
- {requirement 2}
"""

This PROJECT_CONTEXT MUST be included in every sub-agent spawn prompt (logic-architect, physical-architect, task-author). Without it, sub-agents will design solutions that conflict with existing code.

Ingestion: Storing the Spec

First, check if the spec already exists (directory was created during initialization):

if [ -f "$TASKER_DIR/inputs/spec.md" ]; then
    echo "Spec found, proceeding to planning..."
fi

If spec already exists: Skip ingestion, proceed to logical phase.

If spec doesn't exist, ask user for specification, then:

• User provides a file path → cp /path/to/spec "$TASKER_DIR/inputs/spec.md"
• User pastes content → Write it to $TASKER_DIR/inputs/spec.md

Important: Store the spec exactly as provided - no transformation, summarization, or normalization.

Skip Phases for /specify-Generated Specs

If the spec came from /specify workflow, it has already been reviewed AND capabilities have been extracted. Check for artifacts:

# Derive capability map path from spec path
# e.g., /path/to/project/docs/specs/my-feature.md → /path/to/project/docs/specs/my-feature.capabilities.json
SPEC_DIR=$(dirname "$SPEC_PATH")
SPEC_SLUG=$(basename "$SPEC_PATH" .md)
CAPABILITY_MAP="${SPEC_DIR}/${SPEC_SLUG}.capabilities.json"

# Check for /specify artifacts (spec review may be in tasker's .claude/)
SPEC_REVIEW=".claude/spec-review.json"

if [ -f "$CAPABILITY_MAP" ]; then
    echo "Capability map found from /specify workflow: $CAPABILITY_MAP"
    echo "Copying artifacts and skipping to physical phase..."

    # Copy artifacts to planning directory
    cp "$CAPABILITY_MAP" "$TASKER_DIR/artifacts/capability-map.json"
    [ -f "$SPEC_REVIEW" ] && cp "$SPEC_REVIEW" "$TASKER_DIR/artifacts/spec-review.json"

    # Check for FSM artifacts from /specify workflow
    FSM_DIR="${SPEC_DIR}/../fsm/${SPEC_SLUG}"
    if [ -d "$FSM_DIR" ]; then
        echo "FSM artifacts found from /specify workflow: $FSM_DIR"
        mkdir -p "$TASKER_DIR/artifacts/fsm"
        cp -r "$FSM_DIR"/* "$TASKER_DIR/artifacts/fsm/"

        # Validate FSM artifacts
        tasker fsm validate validate "$TASKER_DIR/artifacts/fsm"
        if [ $? -ne 0 ]; then
            echo "WARNING: FSM validation failed. Review artifacts before proceeding."
        fi
    fi

    # Skip spec_review AND logical phases - advance directly to physical
    tasker state set-phase physical
fi

Skip phases when /specify artifacts exist:

• spec_review - Skipped (already done by /specify Phase 7)
• logical - Skipped (capability map already exists from /specify Phase 3)

Plan Phase Dispatch

# Initialize if no state exists
if [ ! -f "$TASKER_DIR/state.json" ]; then
    tasker state init "$TARGET_DIR"
fi

# Check current phase
tasker state status

Phase	Agent	Output	Validation	Skip if
ingestion	(none)	inputs/spec.md (verbatim)	File exists	—
spec_review	spec-reviewer	artifacts/spec-review.json	All critical resolved	/specify artifacts exist
logical	logic-architect	artifacts/capability-map.json	validate capability_map	/specify artifacts exist
physical	physical-architect	artifacts/physical-map.json	validate physical_map	—
definition	task-author	tasks/*.json	load-tasks	—
validation	task-plan-verifier	Validation report	validate-tasks <verdict>	—
sequencing	plan-auditor	Updated task phases	DAG is valid	—
ready	(done)	Planning complete	—	—

Entry points based on artifacts:

• No artifacts → Start at ingestion (raw spec provided)
• Has .capabilities.json → Start at physical (came from /specify)

Note: When starting at physical, the capability-map.json is copied from {TARGET}/docs/specs/<slug>.capabilities.json to artifacts/capability-map.json.

Plan Loop

while phase not in ["ready", "executing", "complete"]:
    1. Query current phase
    2. Spawn appropriate agent WITH FULL CONTEXT (see spawn templates below)
    3. Wait for agent to complete
    4. **VERIFY OUTPUT EXISTS** (critical - see below)
       - DO NOT log spawn-complete until file verified
       - DO NOT proceed to validation until file verified
    5. If file missing: RE-SPAWN agent immediately (see recovery below)
    6. Validate output:
       - For artifacts: state.py validate <artifact>
       - For task validation: state.py validate-tasks <verdict>
    7. If valid: state.py advance
    8. If invalid: Tell agent to fix, re-validate

CRITICAL: Never log "spawn-complete: SUCCESS" until the output file is verified to exist!

CRITICAL: Output Verification Before Validation

MANDATORY STEP: After each agent completes, you MUST verify its output file exists before attempting validation.

Note: $TASKER_DIR below refers to the absolute path you passed to the agent (e.g., /Users/foo/my-project/.tasker).

# After logic-architect completes:
if [ ! -f $TASKER_DIR/artifacts/capability-map.json ]; then
    echo "ERROR: capability-map.json not written. Agent must retry."
    # Re-spawn the agent with explicit reminder to use Write tool
fi

# After physical-architect completes:
if [ ! -f $TASKER_DIR/artifacts/physical-map.json ]; then
    echo "ERROR: physical-map.json not written. Agent must retry."
    # Re-spawn the agent with explicit reminder to use Write tool
fi

# After task-author completes:
task_count=$(ls $TASKER_DIR/tasks/*.json 2>/dev/null | wc -l)
if [ "$task_count" -eq 0 ]; then
    echo "ERROR: No task files written. Agent must retry."
    # Re-spawn the agent with explicit reminder to use Write tool
fi

Why this matters: Sub-agents may fail silently (e.g., output JSON to conversation instead of writing to file, or write to wrong directory). The orchestrator MUST verify files exist at the correct absolute path before calling state.py validate, otherwise validation will fail with "Artifact not found" which is confusing.

Recovery procedure: If file doesn't exist:

1. Check if directory exists: ls -la $TASKER_DIR/artifacts/
2. Re-spawn the agent with this explicit reminder:

   "IMPORTANT: You must use the Write tool to save the file to the absolute path {TASKER_DIR}/artifacts/. Simply outputting JSON to the conversation is NOT sufficient. Do NOT use relative paths like .tasker/."

Agent Spawn Templates

CRITICAL: Each sub-agent is context-isolated. They CANNOT see the orchestrator's conversation or any information you've gathered from the user. You MUST pass ALL relevant context explicitly in the spawn prompt.

MANDATORY: For existing projects, you MUST include the full PROJECT_CONTEXT from the discovery phase. Sub-agents have no visibility into the target codebase - they rely entirely on the context you provide.

Spec Review Phase: spec-reviewer

Spawn prompt for spec-reviewer:

Analyze the specification for weaknesses before capability extraction.

## Logging (MANDATORY)

Log your activity using the logging script:

./scripts/log-activity.sh INFO spec-reviewer start "Analyzing spec for weaknesses"
./scripts/log-activity.sh INFO spec-reviewer decision "What decision and why"
./scripts/log-activity.sh INFO spec-reviewer complete "Outcome description"

## Context

TASKER_DIR: {absolute path to .tasker directory, e.g., /Users/foo/my-project/.tasker}

## Your Task

1. Run weakness detection:
   tasker spec review analyze {TASKER_DIR}/inputs/spec.md

2. Save results to {TASKER_DIR}/artifacts/spec-review.json

3. For CRITICAL weaknesses (W1: Non-behavioral, W6: Contradictions):
   - Use AskUserQuestion tool to engage user for resolution
   - Record resolutions to {TASKER_DIR}/artifacts/spec-resolutions.json

4. Check status:
   tasker spec review status {TASKER_DIR}

CRITICAL WEAKNESS CATEGORIES:
- W1: Non-behavioral (DDL/schema not stated as behavior) - Ask: "Should DDL be DB-level or app-layer?"
- W6: Contradictions (conflicting statements) - Ask: "Which statement is authoritative?"

WARNING CATEGORIES (proceed with notes):
- W2: Implicit requirements
- W3: Cross-cutting concerns
- W5: Fragmented requirements

INFO CATEGORIES (log only):
- W4: Missing acceptance criteria

IMPORTANT:
- You MUST resolve all CRITICAL weaknesses before signaling completion
- Use AskUserQuestion for each critical weakness requiring user input
- Save resolutions in spec-resolutions.json for the logic-architect to consume

**Note:** The orchestrator has already created all required directories. Do NOT create directories yourself.

Logical Phase: logic-architect

Spawn prompt for logic-architect:

Extract capabilities and behaviors from the specification.

## Logging (MANDATORY)

Log your activity using the logging script:

./scripts/log-activity.sh INFO logic-architect start "Extracting capabilities from spec"
./scripts/log-activity.sh INFO logic-architect decision "What decision and why"
./scripts/log-activity.sh INFO logic-architect complete "Outcome description"

## Context

TASKER_DIR: {absolute path to .tasker directory, e.g., /Users/foo/my-project/.tasker}
Target Directory: {TARGET_DIR}
Project Type: {new | existing}
Tech Stack: {user-provided constraints or "none specified"}

## Project Context (CRITICAL for existing projects)

{INSERT FULL PROJECT_CONTEXT HERE - this is MANDATORY for existing projects}

Example for existing project:
"""
Directory: /Users/foo/my-app
Project Type: existing
Stack: Python 3.11+ with FastAPI, managed by uv
Source Layout: src/ with module packages
Test Layout: tests/ mirroring src structure

Key Patterns:
- Naming: snake_case for files and functions
- Imports: absolute imports from src root
- Architecture: Protocol-based interfaces in src/interfaces/
- Error handling: Custom exceptions in src/exceptions.py
- Logging: loguru with structured logging

Integration Requirements:
- New capabilities must define Protocols in src/interfaces/
- Implementations go in src/services/ or src/domain/
- Must not duplicate existing functionality
- Must integrate with existing error handling patterns
"""

For new projects, state: "New project - no existing patterns to follow"

## Specification Location

The full specification is in: {TASKER_DIR}/inputs/spec.md

Read that file for the complete requirements. The spec has already been stored verbatim.

## Your Task

1. Read {TASKER_DIR}/inputs/spec.md
2. Read {TASKER_DIR}/artifacts/spec-resolutions.json if it exists
   - Resolutions marked "mandatory" MUST become explicit behaviors
   - Non-behavioral requirements (W1) should be tagged for explicit tasks
   - Cross-cutting concerns (W3) should be flagged for dedicated capabilities
3. **For existing projects:** Consider how new capabilities integrate with existing structure
4. Extract capabilities using I.P.S.O. decomposition
5. Apply phase filtering (Phase 1 only)
6. **CRITICAL: Use the Write tool** to save to {TASKER_DIR}/artifacts/capability-map.json
7. **Verify file exists**: `ls -la {TASKER_DIR}/artifacts/capability-map.json`
8. Validate with: `cd {TASKER_DIR}/.. && tasker state validate capability_map`

IMPORTANT - YOUR TASK IS NOT COMPLETE UNTIL:
1. You MUST use the Write tool to save the file. Simply outputting JSON to the conversation is NOT sufficient.
2. Use the TASKER_DIR absolute path provided above. Do NOT use relative paths.
3. After Write, you MUST verify: `ls -la {TASKER_DIR}/artifacts/capability-map.json` - if file doesn't exist, Write again!
4. You MUST run validation and confirm it passes.
5. For existing projects, ensure capabilities don't duplicate what already exists in the codebase.

**Note:** The orchestrator has already created all required directories. Do NOT create directories yourself. If you encounter "directory does not exist" errors, report this to the orchestrator.

If you complete without the file existing at the absolute path, you have FAILED.

Physical Phase: physical-architect

Spawn prompt for physical-architect:

Map behaviors to concrete file paths.

## Logging (MANDATORY)

Log your activity using the logging script:

./scripts/log-activity.sh INFO physical-architect start "Mapping behaviors to file paths"
./scripts/log-activity.sh INFO physical-architect decision "What decision and why"
./scripts/log-activity.sh INFO physical-architect complete "Outcome description"

## Context

TASKER_DIR: {absolute path to .tasker directory, e.g., /Users/foo/my-project/.tasker}
Target Directory: {TARGET_DIR}
Project Type: {new | existing}
Tech Stack: {user-provided constraints or "infer from capability-map"}

## Project Context (CRITICAL for existing projects)

{INSERT FULL PROJECT_CONTEXT HERE - this is MANDATORY for existing projects}

This context tells you:
- Where source files should go (e.g., src/services/, src/domain/)
- Where tests should go (e.g., tests/ mirroring src/)
- Naming conventions to follow
- Existing patterns to integrate with
- Files/modules that already exist (don't recreate them)

For new projects, state: "New project - establish sensible conventions"

## Your Task

1. Read {TASKER_DIR}/artifacts/capability-map.json
2. **For existing projects:** Map behaviors to paths that FIT the existing structure
   - Use existing directories (don't create parallel structures)
   - Follow established naming conventions
   - Integrate with existing modules where appropriate
3. For new projects: Establish clean, conventional structure
4. Add cross-cutting concerns and infrastructure
5. **CRITICAL: Use the Write tool** to save to {TASKER_DIR}/artifacts/physical-map.json
6. **Verify file exists**: `ls -la {TASKER_DIR}/artifacts/physical-map.json`
7. Validate with: `cd {TASKER_DIR}/.. && tasker state validate physical_map`

IMPORTANT - YOUR TASK IS NOT COMPLETE UNTIL:
1. You MUST use the Write tool to save the file. Simply outputting JSON to the conversation is NOT sufficient.
2. Use the TASKER_DIR absolute path provided above. Do NOT use relative paths.
3. After Write, you MUST verify: `ls -la {TASKER_DIR}/artifacts/physical-map.json` - if file doesn't exist, Write again!
4. You MUST run validation and confirm it passes.
5. For existing projects, respect the established structure - don't fight it.

**Note:** The orchestrator has already created all required directories. Do NOT create directories yourself. If you encounter "directory does not exist" errors, report this to the orchestrator.

If you complete without the file existing at the absolute path, you have FAILED.

Definition Phase: task-author

Spawn prompt for task-author:

Create individual task files from the physical map.

## Logging (MANDATORY)

Log your activity using the logging script:

./scripts/log-activity.sh INFO task-author start "Creating task files from physical map"
./scripts/log-activity.sh INFO task-author decision "What decision and why"
./scripts/log-activity.sh INFO task-author complete "Outcome description"

## Context

TASKER_DIR: {absolute path to .tasker directory, e.g., /Users/foo/my-project/.tasker}
Target Directory: {TARGET_DIR}
Project Type: {new | existing}

## Project Context (for existing projects)

{INSERT FULL PROJECT_CONTEXT HERE if existing project}

Key information for task definitions:
- Testing patterns (what framework, where fixtures live)
- Linting/formatting requirements (ruff, eslint, etc.)
- Build/run commands (make test, uv run pytest, npm test)
- Integration points with existing code

## Tech Stack Constraints
{user-provided constraints that affect implementation}

## Your Task

1. Read {TASKER_DIR}/artifacts/physical-map.json
2. Read {TASKER_DIR}/artifacts/capability-map.json (for behavior details)
3. **Check for FSM artifacts**: If {TASKER_DIR}/artifacts/fsm/index.json exists:
   - Read the FSM index and transitions files
   - For each task, identify which FSM transitions it covers
   - Add `state_machine` field to task definitions (see FSM Integration below)
   - Generate FSM-aware acceptance criteria
4. **For existing projects:** Include acceptance criteria that verify integration:
   - Tests pass with existing test suite
   - Linting passes (ruff, eslint, etc.)
   - New code follows established patterns
5. **CRITICAL: Use the Write tool** to save each task file to {TASKER_DIR}/tasks/T001.json, etc.
6. **Verify files exist**: `ls -la {TASKER_DIR}/tasks/`
7. Load tasks with: `cd {TASKER_DIR}/.. && tasker state load-tasks`

## FSM Integration (if FSM artifacts exist)

When FSM artifacts are present at {TASKER_DIR}/artifacts/fsm/:

### Add state_machine field to tasks
```json
{
  "id": "T001",
  "name": "Implement credential validation",
  ...
  "state_machine": {
    "transitions_covered": ["TR1", "TR2"],
    "guards_enforced": ["I1"],
    "states_reached": ["S2", "S3"]
  }
}

Generate FSM-aware acceptance criteria

For each transition covered:

• "Transition TR1 (S1→S2) fires when trigger X occurs"
• "Guard I1 prevents invalid transition when condition Y fails"

Example:

{
  "criterion": "Transition TR1: Unauthenticated→Validating fires on login request",
  "verification": "pytest tests/auth/test_fsm.py::test_tr1_login_triggers_validation"
},
{
  "criterion": "Guard I1: Invalid email format prevents authentication",
  "verification": "pytest tests/auth/test_fsm.py::test_guard_invalid_email_blocked"
}

Coverage validation (HARD GATE)

After creating tasks, verify FSM transition coverage. This is a HARD PLANNING GATE:

# Generate coverage report (for observability)
tasker fsm validate coverage-report \
    {TASKER_DIR}/artifacts/fsm/index.json \
    {TASKER_DIR}/tasks \
    --output {TASKER_DIR}/artifacts/fsm-coverage.plan.json

# Validate coverage meets thresholds (HARD GATE)
tasker fsm validate task-coverage \
    {TASKER_DIR}/artifacts/fsm/index.json \
    {TASKER_DIR}/tasks \
    --steel-threshold 1.0 \
    --other-threshold 0.9

Coverage Requirements:

• Steel-thread transitions: 100% coverage required - Every transition in the primary machine MUST have at least one task covering it
• Non-steel-thread transitions: 90% coverage required (configurable)

If coverage gate fails:

1. Planning BLOCKS until coverage is achieved
2. Task-author must add tasks to cover missing transitions
3. Each transition should have:
   • Implementation task(s) that implement the transition
   • Verification in acceptance criteria that the transition works

IMPORTANT - YOUR TASK IS NOT COMPLETE UNTIL:

1. You MUST use the Write tool to save each file. Simply outputting JSON to the conversation is NOT sufficient.
2. Use the TASKER_DIR absolute path provided above. Do NOT use relative paths.
3. After Write, you MUST verify: ls {TASKER_DIR}/tasks/*.json | wc -l - if count is 0, Write again!
4. You MUST run load-tasks and confirm it succeeds.
5. For existing projects, tasks must include verification that new code integrates cleanly.
6. If FSM artifacts exist: You MUST run FSM coverage validation:

   tasker fsm validate task-coverage \
       {TASKER_DIR}/artifacts/fsm/index.json \
       {TASKER_DIR}/tasks
   

   This is a HARD GATE - planning cannot proceed if steel-thread coverage < 100%.

Note: The orchestrator has already created all required directories. Do NOT create directories yourself. If you encounter "directory does not exist" errors, report this to the orchestrator.

If you complete without task files existing at the absolute path, you have FAILED.

### Validation Phase Details

**Automated Planning Gates (Pre-Check)**

Before advancing from `definition` to `validation` phase, the system automatically runs programmatic validation gates:

```bash
# This happens automatically when calling: tasker state advance
# The following gates are checked:
# - Spec coverage ≥ 90% (tasks cover requirements)
# - No phase leakage (Phase 2+ content not in Phase 1 tasks)
# - All task dependencies reference existing tasks
# - Acceptance criteria quality (no vague terms like "works correctly")

If any gate fails, phase advancement is blocked:

Planning gates failed: Spec coverage 75.0% below threshold 90.0%; Acceptance criteria quality issues: 3 problem(s)
Run 'tasker validate gates' for details

Results are stored in state.json → artifacts.validation_results for observability.

LLM-as-Judge Verification

After programmatic gates pass, the validation phase runs task-plan-verifier to evaluate task definitions.

Spawn prompt for task-plan-verifier:

Verify task definitions for planning

## Logging (MANDATORY)

Log your activity using the logging script:

./scripts/log-activity.sh INFO task-plan-verifier start "Verifying task definitions"
./scripts/log-activity.sh INFO task-plan-verifier decision "What decision and why"
./scripts/log-activity.sh INFO task-plan-verifier complete "Outcome description"

## Context

TASKER_DIR: {absolute path to .tasker directory}
Spec: {TASKER_DIR}/inputs/spec.md
Capability Map: {TASKER_DIR}/artifacts/capability-map.json
Tasks Directory: {TASKER_DIR}/tasks/
User Preferences: ~/.claude/CLAUDE.md (if exists)

## Required Command

Register verdict using: tasker state validate-tasks <VERDICT> "<summary>"
(IMPORTANT: The command is validate-tasks, NOT validate-complete or any other variant)

The verifier:

1. Evaluates all tasks against spec, strategy, and user preferences
2. Registers its verdict via tasker state validate-tasks <VERDICT> ...
3. Returns a detailed report

Verdicts:

• READY - All tasks pass, proceed to sequencing
• READY_WITH_NOTES - Tasks pass with minor issues noted
• BLOCKED - Critical issues found, must fix before continuing

After the verifier completes, the orchestrator:

# Check if we can advance (verifier already registered verdict)
tasker state advance

If BLOCKED, the orchestrator:

1. Displays the verifier's summary to user
2. Points user to full report: {TASKER_DIR}/reports/task-validation-report.md
3. Waits for user to fix task files
4. Re-runs task-plan-verifier (or user runs /verify-plan)
5. Repeats until READY or READY_WITH_NOTES

Sequencing Phase: plan-auditor

Spawn prompt for plan-auditor:

Assign phases to tasks and validate the dependency graph.

## Logging (MANDATORY)

Log your activity using the logging script:

./scripts/log-activity.sh INFO plan-auditor start "Assigning phases and validating DAG"
./scripts/log-activity.sh INFO plan-auditor decision "What decision and why"
./scripts/log-activity.sh INFO plan-auditor complete "Outcome description"

## Context

TASKER_DIR: {absolute path to .tasker directory, e.g., /Users/foo/my-project/.tasker}

## Your Task

1. Read {TASKER_DIR}/tasks/*.json
2. Read {TASKER_DIR}/artifacts/capability-map.json (for steel thread flows)
3. Build dependency graph
4. Assign phases (1: foundations, 2: steel thread, 3+: features)
5. **CRITICAL: Update task files** using Write tool to {TASKER_DIR}/tasks/T001.json etc.
6. Validate DAG (no cycles, deps in earlier phases)
7. Run: cd {TASKER_DIR}/.. && tasker state load-tasks

IMPORTANT:
- You MUST update task files using the Write tool or jq.
- Use the TASKER_DIR absolute path provided above. Do NOT use relative paths.

The report file contains:

• Per-task evaluations with evidence
• Specific issues and fix suggestions
• User preference violations (from ~/.claude/CLAUDE.md)

Plan Completion

When phase reaches "ready":

## Planning Complete ✓

**Tasks:** 24
**Phases:** 4
**Steel Thread:** T001 → T003 → T007 → T012

Run `/execute` to begin implementation.

Archive Planning Artifacts (Automatic)

After planning completes, archive the artifacts for post-hoc analysis:

# Archive planning artifacts
tasker archive planning {project_name}

This creates:

archive/{project_name}/planning/{timestamp}/
├── inputs/         # spec.md (verbatim)
├── artifacts/      # capability-map.json, physical-map.json, spec-review.json
├── tasks/          # T001.json, T002.json, ...
├── reports/        # task-validation-report.md
├── state.json      # State snapshot
└── archive-manifest.json

The archive preserves full context for:

• Gap analysis after implementation
• Debugging spec coverage issues
• Auditing planning decisions
• Restoring planning state if needed

---

Execute Mode

Triggered by /execute. Runs task execution phase, followed by optional compliance check.

Execute Inputs

ALWAYS ask for target_dir FIRST before anything else. No guessing, no inference from CWD.

Use AskUserQuestion to ask:

What is the target project directory?

Free-form text input. User must provide an absolute or relative path.

After target_dir is confirmed:

TARGET_DIR="<user-provided-path>"
# Convert to absolute path
TARGET_DIR=$(cd "$TARGET_DIR" 2>/dev/null && pwd)

TASKER_DIR="$TARGET_DIR/.tasker"

# Verify .tasker/ exists and has state
if [ ! -f "$TASKER_DIR/state.json" ]; then
    echo "Error: No tasker session found at $TASKER_DIR"
    echo "Run /plan first to create a task plan."
    exit 1
fi

Execute Prerequisites

# Verify planning is complete
tasker state status
# Phase must be: ready, executing, or have tasks

Git Repository Initialization (MANDATORY)

Before any implementation begins, check if the target repository has git initialized. If not, initialize it:

Bash: ./scripts/ensure-git.sh "$TARGET_DIR"

Why this is required:

• Enables automatic commit hooks to track changes per task
• Provides audit trail of all implementation changes
• Required for the post-task-commit hook to function

Recovery on Start (CRITICAL)

Before starting the execute loop, always check for and recover from a previous crash:

# Check for existing checkpoint from previous run
tasker state checkpoint status

# If checkpoint exists and is active, recover
tasker state checkpoint recover

# This will:
# 1. Find tasks that completed (have result files) but weren't acknowledged
# 2. Identify orphaned tasks (still "running" with no result file)
# 3. Update checkpoint state accordingly

If orphaned tasks are found, ask user:

Found 3 orphaned tasks from previous run:
- T019, T011, T006

Options:
1. Retry orphaned tasks (reset to pending)
2. Skip orphaned tasks (mark failed)
3. Abort and investigate

To retry orphaned tasks:

tasker state task retry T019
tasker state task retry T011
tasker state task retry T006
tasker state checkpoint clear

Execute Loop

CRITICAL CONSTRAINTS:

• Max 3 parallel executors - More causes orchestrator context exhaustion
• Task-executors are self-completing - They call state.py complete-task directly
• Checkpoint before spawning - Track batch for crash recovery
• Minimal returns - Executors return only T001: SUCCESS or T001: FAILED - reason

PARALLEL_LIMIT=3

while true; do
    # 0. CHECK FOR HALT
    tasker state check-halt
    if [ $? -ne 0 ]; then
        echo "Halt requested. Stopping gracefully."
        tasker state checkpoint complete

        # Generate evaluation report even on halt
        tasker evaluate --output $TASKER_DIR/reports/evaluation-report.txt
        tasker evaluate --format json --output $TASKER_DIR/reports/evaluation-report.json

        tasker state confirm-halt
        break
    fi

    # 1. Get ready tasks
    READY=$(tasker state ready)

    if [ -z "$READY" ]; then
        tasker state advance
        if [ $? -eq 0 ]; then
            echo "All tasks complete!"
            tasker state checkpoint clear

            # Generate evaluation report (MANDATORY)
            tasker evaluate --output $TASKER_DIR/reports/evaluation-report.txt
            tasker evaluate --format json --output $TASKER_DIR/reports/evaluation-report.json

            break
        else
            echo "No ready tasks. Check for blockers."
            tasker state status
            break
        fi
    fi

    # 2. Select batch (up to PARALLEL_LIMIT tasks)
    BATCH=$(echo "$READY" | head -$PARALLEL_LIMIT | cut -d: -f1)
    BATCH_ARRAY=($BATCH)
    echo "Batch: ${BATCH_ARRAY[@]}"

    # 3. Generate and validate bundles for all tasks in batch
    VALID_TASKS=()
    for TASK_ID in ${BATCH_ARRAY[@]}; do
        tasker bundle generate $TASK_ID
        tasker bundle validate-integrity $TASK_ID
        INTEGRITY_CODE=$?

        if [ $INTEGRITY_CODE -eq 0 ]; then
            # Bundle valid - add to execution batch
            VALID_TASKS+=($TASK_ID)
        elif [ $INTEGRITY_CODE -eq 2 ]; then
            # WARNING: Artifacts changed since bundle creation - regenerate
            ./scripts/log-activity.sh WARN orchestrator validation "$TASK_ID: Bundle drift detected, regenerating"
            tasker bundle generate $TASK_ID
            VALID_TASKS+=($TASK_ID)
        else
            # CRITICAL: Missing dependencies or validation failure
            ./scripts/log-activity.sh ERROR orchestrator validation "$TASK_ID: Bundle integrity FAILED"
            tasker state task fail $TASK_ID "Bundle integrity validation failed" --category dependency
            # Task will be skipped from this batch
        fi
    done

    # Update batch to only include valid tasks
    if [ ${#VALID_TASKS[@]} -eq 0 ]; then
        ./scripts/log-activity.sh ERROR orchestrator batch "No valid tasks in batch - all failed integrity check"
        continue  # Skip to next batch
    fi
    BATCH_ARRAY=(${VALID_TASKS[@]})

    # 4. CREATE CHECKPOINT before spawning (crash recovery)
    tasker state checkpoint create ${BATCH_ARRAY[@]}

    # 5. Mark all tasks as started
    for TASK_ID in ${BATCH_ARRAY[@]}; do
        tasker state task start $TASK_ID
    done

    # 6. SPAWN EXECUTORS IN PARALLEL
    # Use Task tool with multiple invocations in single message
    # Each executor gets: TASKER_DIR and Bundle path
    # Each executor returns: "T001: SUCCESS" or "T001: FAILED - reason"

    # 7. AS EACH EXECUTOR RETURNS, update checkpoint
    # Parse the minimal return: "T001: SUCCESS" -> task_id=T001, status=success
    # NOTE: Commits are handled automatically by PostToolUse hook (.claude/hooks/post-task-commit.sh)
    for TASK_ID in ${BATCH_ARRAY[@]}; do
        # Executor returned - check result file exists
        if [ -f "$TASKER_DIR/bundles/${TASK_ID}-result.json" ]; then
            STATUS=$(tasker bundle result-info "$TASKER_DIR/bundles/${TASK_ID}-result.json" | grep "^status:" | cut -d: -f2)
            tasker state checkpoint update $TASK_ID $STATUS
            ./scripts/log-activity.sh INFO orchestrator task-result "$TASK_ID: $STATUS"
        else
            ./scripts/log-activity.sh WARN orchestrator task-result "$TASK_ID: no result file"
        fi
    done

    # 8. COMPLETE CHECKPOINT for this batch
    tasker state checkpoint complete

    # 9. Check for halt AFTER batch
    tasker state check-halt
    if [ $? -ne 0 ]; then
        echo "Halt requested after batch. Stopping gracefully."

        # Generate evaluation report even on halt
        tasker evaluate --output $TASKER_DIR/reports/evaluation-report.txt
        tasker evaluate --format json --output $TASKER_DIR/reports/evaluation-report.json

        tasker state confirm-halt
        break
    fi

    # 10. Continue to next batch (or ask user in interactive mode)
    # In batch mode: continue automatically
    # In interactive mode: read -p "Continue? (y/n): " CONTINUE
done

Post-Execution Commit (Defense in Depth)

Task file commits are handled automatically by a Claude Code hook, ensuring commits happen regardless of executor behavior.

Hook Configuration

Configured in .claude/settings.local.json:

"PostToolUse": [
  {
    "matcher": "Task",
    "hooks": [
      {
        "type": "command",
        "command": ".claude/hooks/post-task-commit.sh",
        "timeout": 30
      }
    ]
  }
]

How It Works

1. Hook (.claude/hooks/post-task-commit.sh) - Triggered after every Task tool completion

   • Parses task ID from output (e.g., "T001: SUCCESS")
   • Reads target_dir from state.json
   • Calls the commit script if task succeeded

2. Script (.claude/hooks/post-task-commit.sh) - Does the actual commit work

   • Reads bundles/<task_id>-result.json for file list
   • Checks if files have uncommitted changes
   • If uncommitted: stages and commits with message <task_id>: <task_name>
   • If already committed: no-op (idempotent)
   • Updates result file with commit SHA

Manual Usage

./.claude/hooks/post-task-commit.sh <task_id> <target_dir> <planning_dir>

Why hook-based (not orchestrator-called):

• Automatic - No orchestrator code to forget/break
• Single point of control - Hook config is the source of truth
• Resilient - Works regardless of orchestrator implementation
• Idempotent - Safe to run multiple times

Checkpoint Commands Reference

# Create checkpoint before spawning batch
tasker state checkpoint create T001 T002 T003

# Update after each executor returns
tasker state checkpoint update T001 success
tasker state checkpoint update T002 failed

# Mark batch complete
tasker state checkpoint complete

# Check current checkpoint status
tasker state checkpoint status

# Recover from crash (finds orphans, updates from result files)
tasker state checkpoint recover

# Clear checkpoint (after successful completion or manual cleanup)
tasker state checkpoint clear

Graceful Halt and Resume

The executor supports graceful halt via two mechanisms:

1. STOP File (Recommended for External Control)

Create a STOP file in the .tasker/ directory:

touch .tasker/STOP

The executor checks for this file before starting each new task and after completing each task. When detected:

1. Current task (if running) completes normally
2. No new tasks are started
3. State is saved with halt information
4. Clean exit with instructions to resume

2. User Message (For Interactive Sessions)

If a user sends "STOP" during an interactive /execute session, the orchestrator should:

1. Call tasker state halt user_message
2. Allow current task to complete
3. Exit gracefully

Resuming Execution

To resume after a halt:

# Check current halt status
tasker state halt-status

# Clear halt and resume
tasker state resume

# Then run /execute again

The resume command:

• Removes the STOP file if present
• Clears the halt flag in state
• Logs the resume event

Halt Status Commands

# Request halt (called by orchestrator when user sends STOP)
tasker state halt [reason]

# Check if halted (exit code 1 = halted, 0 = ok)
tasker state check-halt

# Confirm halt completed (after executor stops)
tasker state confirm-halt

# Show detailed halt status
tasker state halt-status [--format json]

# Clear halt and resume
tasker state resume

Subagent Spawn

Spawn task-executor with self-contained bundle. Executors are self-completing - they update state and write results directly, returning only a minimal status line to the orchestrator.

Execute task [TASK_ID]

## Logging (MANDATORY)

Log your activity using the logging script:

```bash
./scripts/log-activity.sh INFO task-executor start "Executing task [TASK_ID]"
./scripts/log-activity.sh INFO task-executor decision "What decision and why"
./scripts/log-activity.sh INFO task-executor tool "Write - creating src/auth/validator.py"
./scripts/log-activity.sh INFO task-executor complete "Outcome description"
./scripts/log-activity.sh ERROR task-executor error "Error message if any"

TASKER_DIR: {absolute path to .tasker directory, e.g., /Users/foo/my-project/.tasker} Bundle: {TASKER_DIR}/bundles/[TASK_ID]-bundle.json

The bundle contains everything you need:

• Task definition and acceptance criteria
• Expanded behavior details (what to implement)
• File paths and purposes
• Target directory
• Constraints and patterns to follow
• Dependencies (files from prior tasks)

Self-Completion Protocol (CRITICAL)

You are responsible for updating state and persisting results. Do NOT rely on the orchestrator.

On Success:

1. Track all files you created/modified
2. Call: tasker state task complete [TASK_ID] --created file1 file2 --modified file3
3. Write result file: {TASKER_DIR}/bundles/[TASK_ID]-result.json (see schema below)
4. Return ONLY this line: [TASK_ID]: SUCCESS

On Failure:

1. Call: tasker state task fail [TASK_ID] "error message" --category <cat> --retryable
2. Write result file with error details
3. Return ONLY this line: [TASK_ID]: FAILED - <one-line reason>

Result File Schema

Write to {TASKER_DIR}/bundles/[TASK_ID]-result.json:

{
  "version": "1.0",
  "task_id": "[TASK_ID]",
  "name": "Task name from bundle",
  "status": "success|failed",
  "started_at": "ISO timestamp",
  "completed_at": "ISO timestamp",
  "files": {
    "created": ["path1", "path2"],
    "modified": ["path3"]
  },
  "verification": {
    "verdict": "PASS|FAIL",
    "criteria": [
      {"name": "criterion", "status": "PASS|FAIL", "evidence": "..."}
    ]
  },
  "error": {
    "category": "dependency|compilation|test|validation|runtime",
    "message": "...",
    "retryable": true
  },
  "notes": "Any decisions or observations"
}

Workflow Summary

1. Read the bundle file - it has ALL context
2. Implement behaviors in specified files
3. Run acceptance criteria verification
4. Call state.py to update task status
5. Write detailed result to bundles/[TASK_ID]-result.json
6. Return ONE LINE status to orchestrator

IMPORTANT: Use the TASKER_DIR absolute path provided above. Do NOT use relative paths.

The subagent:
- Has NO memory of previous tasks
- Gets full context budget
- Reads ONE file (the bundle) for complete context
- **Calls state.py directly** to mark completion
- **Writes result file** for observability
- Returns **minimal status line** (not full report)

## Bundle Contents

The bundle (`{TASKER_DIR}/bundles/T001-bundle.json`) includes:

| Field | Purpose |
|-------|---------|
| `task_id`, `name` | Task identification |
| `target_dir` | Where to write code |
| `behaviors` | Expanded behavior details (not just IDs) |
| `files` | Paths, actions, purposes, layers |
| `acceptance_criteria` | Verification commands |
| `constraints` | Tech stack, patterns, testing |
| `dependencies.files` | Files from prior tasks to read |
| `context` | Domain, capability, spec reference |
| `state_machine` | FSM context for adherence verification (if present) |

### FSM Context in Bundle (when present)

If the task has `state_machine` field, the bundle includes expanded FSM details:

```json
{
  "state_machine": {
    "transitions_covered": ["TR1", "TR2"],
    "guards_enforced": ["I1"],
    "states_reached": ["S2", "S3"],
    "transitions_detail": [
      {
        "id": "TR1",
        "from_state": "S1",
        "to_state": "S2",
        "trigger": "validate_credentials",
        "guards": [{"condition": "email_valid", "invariant_id": "I1"}]
      }
    ]
  }
}

The task-executor uses this for:

1. Understanding the state transitions being implemented
2. Ensuring guards are properly enforced
3. Writing tests that verify FSM behavior

Generate bundles with:

tasker bundle generate T001       # Single task
tasker bundle generate-ready      # All ready tasks

Execute Options

Command	Behavior
/execute	Interactive, one task at a time
/execute T005	Execute specific task only
/execute --batch	All ready tasks, no prompts
/execute --parallel 3	Up to 3 tasks simultaneously

FSM Coverage Report (After Execution Completes)

After all tasks complete, generate the execution coverage report:

# Generate execute phase coverage report with verification evidence
tasker fsm validate execute-coverage-report \
    {TASKER_DIR}/artifacts/fsm/index.json \
    {TASKER_DIR}/bundles \
    --output {TASKER_DIR}/artifacts/fsm-coverage.execute.json

This report includes:

• Which transitions were verified during execution
• Evidence type for each transition (test, runtime_assertion, manual)
• Which invariants were enforced
• Pointers to tasks and acceptance criteria that provide evidence

Use this report for post-execution compliance auditing.

Evaluation Report (After Completion)

MANDATORY: After all tasks complete (or execution halts), generate the evaluation report:

tasker evaluate --output {TASKER_DIR}/reports/evaluation-report.txt
tasker evaluate --format json --output {TASKER_DIR}/reports/evaluation-report.json

Display the report to the user. The report includes:

• Planning quality (verdict from task-plan-verifier)
• Execution summary (completed/failed/blocked/skipped counts)
• First-attempt success rate (measures spec quality)
• Verification breakdown (criteria pass/partial/fail, code quality)
• Cost analysis (total tokens, total cost, per-task cost)
• Failure analysis (which tasks failed and why)
• Improvement patterns (common issues for process improvement)

For metrics-only summary:

tasker evaluate --metrics-only

Archive Execution Artifacts (After Completion)

After execution completes (all tasks done or halted), archive execution artifacts:

# Archive execution artifacts
tasker archive execution {project_name}

This creates:

archive/{project_name}/execution/{timestamp}/
├── bundles/        # Task bundles and result files
├── logs/           # Activity logs
├── state.json      # State snapshot
└── archive-manifest.json

The archive preserves:

• Task execution results and timing
• Bundle contents (full context for each task)
• Logs for debugging
• State for resumption analysis

Archive Commands Reference

# Archive planning artifacts
tasker archive planning {project_name}

# Archive execution artifacts
tasker archive execution {project_name}

# List all archives
tasker archive list

# List archives for specific project
tasker archive list --project {project_name}

# Restore planning state from archive
tasker archive restore {archive_id} --project {project_name}

---

State Commands Reference

# General
tasker state status          # Current phase, task counts
tasker state advance         # Try to advance phase

# Planning
tasker state init <dir>      # Initialize new plan
tasker state validate <art>  # Validate artifact
tasker state validate-tasks <verdict> [summary] [--issues ...]
                                         # Register task validation result

# Execution
tasker state ready     # List ready tasks
tasker state task start <id> # Mark running
tasker state task complete <id>  # Mark done
tasker state task fail <id> <e>  # Mark failed
tasker state load-tasks      # Reload from files

# Halt / Resume
tasker state halt [reason]   # Request graceful halt
tasker state check-halt      # Check if halted (exit 1 = halted)
tasker state confirm-halt    # Confirm halt completed
tasker state halt-status     # Show halt status
tasker state resume          # Clear halt, resume execution

# Checkpoint (Crash Recovery)
tasker state checkpoint create <t1> [t2 ...]  # Create batch checkpoint
tasker state checkpoint update <id> <status>  # Update task (success|failed)
tasker state checkpoint complete              # Mark batch done
tasker state checkpoint status                # Show current checkpoint
tasker state checkpoint recover               # Recover orphaned tasks
tasker state checkpoint clear                 # Remove checkpoint

# Bundles
tasker bundle generate <id>   # Generate bundle for task
tasker bundle generate-ready  # Generate all ready bundles
tasker bundle validate <id>   # Validate bundle against schema
tasker bundle validate-integrity <id>  # Check deps + checksums
tasker bundle list            # List existing bundles
tasker bundle clean           # Remove all bundles

# Observability
tasker state log-tokens <s> <i> <o> <c>  # Log usage

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Error Recovery

Planning Errors

If agent produces invalid output:

1. Validation fails (state.py validate returns non-zero)
2. Report errors to agent
3. Agent fixes and re-outputs
4. Re-validate
5. Only advance on success

Execution Errors

If task fails:

1. state.py fail-task marks it failed
2. Rollback triggered (created files deleted, modified files restored)
3. Dependent tasks auto-blocked
4. Other ready tasks can continue
5. User can retry later: fix issue, then state.py start-task again

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