spec-impl

Implementation Task Executor

Parse Arguments

• Feature name: $1
• Task numbers: $2 (optional)
  • Format: "1.1" (single task) or "1,2,3" (multiple tasks)
  • If not provided: Execute all pending tasks

Validate

Check that tasks have been generated:

• Verify {{KIRO_DIR}}/specs/$1/ exists
• Verify {{KIRO_DIR}}/specs/$1/tasks.md exists

If validation fails, inform user to complete tasks generation first.

Task Selection Logic

Parse task numbers from $2 (perform this in Slash Command before invoking Subagent):

• If $2 provided: Parse task numbers (e.g., "1.1", "1,2,3")
• Otherwise: Read {{KIRO_DIR}}/specs/$1/tasks.md and find all unchecked tasks (- [ ])

Invoke Subagent

Delegate TDD implementation to spec-tdd-impl-agent:

Use the Task tool to invoke the Subagent with file path patterns:

Task(
  subagent_type="spec-tdd-impl-agent",
  description="Execute TDD implementation",
  prompt="""
Feature: $1
Spec directory: {{KIRO_DIR}}/specs/$1/
Target tasks: {parsed task numbers or "all pending"}

File patterns to read:
- {{KIRO_DIR}}/specs/$1/*.{json,md}
- {{KIRO_DIR}}/steering/*.md

TDD Mode: strict (test-first)
"""
)

Display Result

Show Subagent summary to user, then provide next step guidance:

Task Execution

Execute specific task(s):

• /kiro:spec-impl $1 1.1 - Single task
• /kiro:spec-impl $1 1,2,3 - Multiple tasks

Execute all pending:

• /kiro:spec-impl $1 - All unchecked tasks

Before Starting Implementation:

• IMPORTANT: Clear conversation history and free up context before running /kiro:spec-impl
• This applies when starting first task OR switching between tasks
• Fresh context ensures clean state and proper task focus