implement-feature

IMPORTANT: IMPLEMENTATION WITH STEP-BY-STEP EXECUTION

This command implements a feature based on a planning document, executing one logical step at a time with user review checkpoints.

Required Parameter

Planning Document Path: You MUST provide the path to the feature planning markdown file.

Example usage:

/implement-feature planning/my-feature.md

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Instructions

1. Validate Planning Document

Read the planning document and verify:

1. File exists at the provided path
2. Contains ### Implementation Phases with clear phase breakdown and specific tasks
3. Has required sections: Overview, Requirements, Technical Design, Testing Strategy, Acceptance Criteria

If validation fails: Inform user what's missing and suggest running /plan-feature first. EXIT without proceeding.

2. Create Implementation Plan

If all validation passes, create a detailed implementation plan:

Extract Phases and Tasks Parse the ### Implementation Phases section Create a structured list of all phases and tasks Number tasks hierarchically (1.1, 1.2, 2.1, 2.2, etc.) Identify file paths for each task Note any dependencies between tasks Add Progress Tracker to Planning Document IMPORTANT: Update the planning document by adding a progress tracker table at the TOP of the file (right after the feature title, before Overview):

Feature: [Feature Name]

Implementation Progress

Phase	Task	Status	Notes
Phase 1: [Name]
1.1	[Task description]	⏸️ Pending
1.2	[Task description]	⏸️ Pending
Phase 2: [Name]
2.1	[Task description]	⏸️ Pending
2.2	[Task description]	⏸️ Pending
Phase 3: [Name]
3.1	[Task description]	⏸️ Pending

Legend: ✅ Complete | 🔄 In Progress | ⏸️ Pending | ❌ Blocked

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Overview

[Rest of original planning document content...] Present Implementation Plan to User Show the user a summary:

📋 Implementation Plan Created