Parallel Run

parallel-run

Category: Parallel Development

Usage

/parallel-run <parallel-dir> [options]

Arguments

• <parallel-dir>: Required - Path to decomposed parallel folder (e.g., parallel/TS-0042-inventory/)
• --validate: Only validate the directory without executing
• --status: Show current execution status

Purpose

Execute parallel agent development tasks using the cpo (Claude Parallel Orchestrator) CLI tool. This command:

1. Validates the parallel directory and manifest.json
2. Executes parallel agents using git worktrees
3. Monitors progress and reports results

Prerequisites

• Run /parallel-decompose first (creates tasks, prompts, manifest.json)
• cpo tool installed: pip install claude-parallel-orchestrator or pipx install claude-parallel-orchestrator
• Git working tree is clean (no uncommitted changes)
• Claude Code CLI available: claude --version

Execution Instructions for Claude Code

When this command is run, Claude Code should delegate to the cpo CLI tool.

0. Parse Arguments

Extract from user input:

• PARALLEL_DIR: The parallel directory path
• VALIDATE_ONLY: Boolean, true if --validate specified
• STATUS_ONLY: Boolean, true if --status specified

1. Check cpo Tool Availability

cpo --help

If cpo is not installed, display:

ERROR: cpo (Claude Parallel Orchestrator) not found

Install with:
  pip install claude-parallel-orchestrator
  # or
  pipx install claude-parallel-orchestrator

Documentation: https://github.com/jpoutrin/claude-parallel-orchestrator

2. Handle --validate Option

If --validate is specified:

cpo validate "$PARALLEL_DIR"

Display the validation output and stop.

3. Handle --status Option

If --status is specified:

cpo status "$PARALLEL_DIR"

Display the status output and stop.

4. Run Parallel Execution

For default execution (no special flags):

cpo run "$PARALLEL_DIR"

The cpo run command will:

1. Validate the manifest.json
2. Create git worktrees for each task
3. Launch Claude agents in parallel (respecting wave dependencies)
4. Monitor progress and handle failures
5. Generate execution logs in $PARALLEL_DIR/logs/
6. Create final report in $PARALLEL_DIR/report.json

5. Monitor and Report Progress

The cpo run command outputs progress to stdout. Parse and display:

=== Parallel Execution Started ===

Wave 1:
  task-001-users: RUNNING
  task-002-products: RUNNING
  task-003-shared: RUNNING

[... cpo output continues ...]

=== Execution Complete ===

Results:
  Completed: 5/5 tasks
  Failed: 0 tasks

Next step: /parallel-integrate --parallel-dir $PARALLEL_DIR

cpo Manifest Format

The cpo tool expects manifest.json with this structure:

{
  "tech_spec_id": "TS-0042",
  "waves": [
    {
      "number": 1,
      "tasks": [
        {
          "id": "task-001-users",
          "agent": "python-experts:django-expert",
          "prompt_file": "prompts/task-001.txt"
        },
        {
          "id": "task-002-products",
          "agent": "python-experts:django-expert",
          "prompt_file": "prompts/task-002.txt"
        }
      ],
      "validation": "python -c 'from apps.users.models import User'"
    },
    {
      "number": 2,
      "tasks": [
        {
          "id": "task-004-orders",
          "agent": "python-experts:django-expert",
          "prompt_file": "prompts/task-004.txt"
        }
      ],
      "validation": "pytest apps/orders/tests/ -v"
    }
  ]
}

Key fields:

• tech_spec_id: Links to Tech Spec for traceability
• waves[].number: Wave execution order (1, 2, 3...)
• waves[].tasks[].id: Unique task identifier
• waves[].tasks[].agent: Agent type from product-forge (e.g., python-experts:django-expert)
• waves[].tasks[].prompt_file: Path to task prompt file
• waves[].validation: Optional command to validate wave completion

Error Handling

cpo Not Installed

ERROR: cpo command not found

Install with:
  pip install claude-parallel-orchestrator

Or check PATH if already installed:
  which cpo

Invalid Manifest

ERROR: manifest.json validation failed

Missing required fields:
  - tech_spec_id
  - waves

Run '/parallel-decompose' to regenerate the manifest.

Execution Failures

The cpo tool handles:

1. Agent process failure -> marks task as failed, continues with independent tasks
2. Validation failure -> stops wave, reports error
3. Git conflicts -> aborts with message

Check $PARALLEL_DIR/logs/ for detailed agent output. Check $PARALLEL_DIR/report.json for execution summary.

Examples

# Execute parallel tasks (default)
/parallel-run parallel/TS-0042-inventory/

# Validate manifest without executing
/parallel-run parallel/TS-0042-inventory/ --validate

# Check current execution status
/parallel-run parallel/TS-0042-inventory/ --status

Related Commands

• /parallel-setup - One-time project initialization
• /parallel-decompose - Create tasks and prompts (run before this)
• /parallel-validate-prompts - Validate prompts have required sections
• /parallel-integrate - Verify integration (run after this)

cpo CLI Reference

For advanced usage, use cpo directly:

# Initialize new parallel directory
cpo init parallel/TS-0042-feature -t TS-0042 -n feature-name

# Validate directory structure
cpo validate parallel/TS-0042-feature

# Run parallel execution
cpo run parallel/TS-0042-feature

# Check execution status
cpo status parallel/TS-0042-feature