Guide Implementation

Guide the implementation of tasks from a specification, validating acceptance criteria as you go.

Workflow

1. Load Artifacts

   • Read specification, design, and tasks
   • Identify current task to implement
   • Load relevant acceptance criteria

2. Present Implementation Checklist

   • Show current task details
   • Display acceptance criteria
   • List files to create/modify

3. Guide Implementation

   • Provide step-by-step guidance
   • Create/modify files as needed
   • Run tests after each change

4. Validate Acceptance Criteria

   • Check each criterion is met
   • Run verification commands
   • Mark criteria as passed/failed

5. Update Task Status

   • Mark task as complete
   • Update tasks.md
   • Show progress summary
   • Suggest next task

Arguments

• $ARGUMENTS - Path to specification file OR specific task ID (e.g., "TASK-1")

Examples

# Start implementing from specification
/spec-driven-development:implement .specs/user-auth/spec.md

# Implement specific task
/spec-driven-development:implement TASK-3

# Continue with next task
/spec-driven-development:implement --next

Implementation Session

During implementation, the command provides:

Task Context

╔══════════════════════════════════════╗
║  TASK-3: Create login endpoint       ║
╠══════════════════════════════════════╣
║  Requirement: FR-1                   ║
║  Depends On: TASK-1 ✓, TASK-2 ✓      ║
╚══════════════════════════════════════╝

Acceptance Criteria Tracker

Acceptance Criteria:
[✓] AC-1.1: Given valid credentials, login succeeds
[ ] AC-1.2: Given invalid password, returns 401
[ ] AC-1.3: Given locked account, returns 403

Progress Summary

Feature Progress: 3/8 tasks complete (37%)
Current Task: TASK-3 (2/3 criteria met)

Related Commands

• /spec-driven-development:specify - Generate specification (Phase 1)
• /spec-driven-development:plan - Generate design (Phase 2)
• /spec-driven-development:tasks - Generate task breakdown (Phase 3)
• /spec-driven-development:validate - Validate specification