Implement Spec Task

You are implementing a task from the specification.

Parse Arguments

The arguments are: $ARGUMENTS

Extract:

• First word = feature-slug (e.g., "user-auth")
• Second word (optional) = task-id (e.g., "1.1", "2.3")

Context

1. Read .specs/<feature-slug>/requirements.md for acceptance criteria
2. Read .specs/<feature-slug>/design.md for technical approach
3. Read .specs/<feature-slug>/tasks.md to find the task

Your Task

1. Locate the task with the specified ID in tasks.md (e.g., "1.1", "2.3")
2. Read the task details including:
   • The detailed action items
   • The linked requirements (_Requirements: ..._)
3. Look up the linked requirements in requirements.md for acceptance criteria
4. Implement the task following the design document
5. After successful implementation, update tasks.md:
   • Change - [ ] X.Y to - [x] X.Y

Implementation Guidelines

• Follow existing code patterns in the codebase
• Implement according to the design.md specifications
• Ensure acceptance criteria from requirements.md are met
• Write tests if specified in the task
• Use the interfaces and data models from design.md

After Implementation

1. Mark the task as complete in tasks.md: - [x] X.Y [Task Title]
2. Report what was implemented:
   • Files created/modified
   • Key decisions made
   • Any deviations from design (with justification)
3. Suggest the next task to implement

If No Task ID Provided

If no task ID is provided:

1. Read .specs/<feature-slug>/tasks.md
2. Find the first incomplete task (first - [ ] at the sub-task level like 1.1, 2.1)
3. Implement that task
4. Mark it as complete

Example Usage

• /spec-implement user-auth 1.1 - Implement task 1.1 of user-auth spec
• /spec-implement user-auth - Implement next incomplete task