speckit-implement

Executes implementation plans by processing tasks defined in tasks.md.

Updated Aug 25, 2026
One-click install
npx skills add https://github.com/Sergiotsk/Interstellar --skill speckit-implement-sergiotsk
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: speckit-implement
Source: https://github.com/Sergiotsk/Interstellar/tree/main/interstellar/.claude/skills/speckit-implement
Command: npx skills add https://github.com/Sergiotsk/Interstellar --skill speckit-implement-sergiotsk

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Turning a written specification and task breakdown into working code requires disciplined, phase-by-phase execution. This Skill automates that process by reading the spec-kit project artifacts (tasks.md, plan.md, data-model.md, contracts) and executing every task in the correct order with dependency awareness. ## Core Features & Use Cases - Task Plan Execution: Parses tasks.md for phases, dependencies, and parallel markers, then executes setup, tests, core, integration, and polish phases in order. - Checklist Gating: Scans checklists in the feature directory, reports pass/fail status, and asks for confirmation before proceeding when items are unchecked. - Project Setup Verification: Detects the tech stack and creates or verifies ignore files (.gitignore, .dockerignore, .eslintignore, and others) with appropriate patterns. - Extension Hooks: Runs mandatory and optional before/after implementation hooks defined in .specify/extensions.yml. - Use Case: After running /speckit-tasks to generate a task list for a new feature, invoke this Skill to implement all tasks, mark them complete in tasks.md, and receive a completion report. ## Quick Start Run the speckit-implement skill to execute all tasks in tasks.md for the current feature.

Frequently Asked Questions about speckit-implement

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I execute a tasks.md implementation plan with spec-kit?▼

Invoke the speckit-implement skill from the repository root. It runs the check-prerequisites script, loads tasks.md and plan.md, then executes each phase in order while respecting sequential and parallel task dependencies.

What project structure does spec-kit implementation require?▼

It requires a spec-kit project with a .specify directory containing scripts, plus a feature directory with tasks.md and plan.md. Optional artifacts like data-model.md, contracts/, research.md, and checklists/ are loaded when present.

Does speckit-implement run when checklists have unchecked items?▼

No, it stops and asks for confirmation first. It scans all checklist files, displays a status table with checked and unchecked counts, and only proceeds after the user explicitly approves continuing.

What happens if tasks.md is missing or incomplete?▼

The skill assumes a complete task breakdown exists in tasks.md. If tasks are incomplete or missing, it suggests running /speckit-tasks first to regenerate the task list before implementation.

How are extension hooks handled during implementation?▼

The skill reads .specify/extensions.yml for hooks under before_implement and after_implement keys. Mandatory hooks are executed automatically and the skill waits for results; optional hooks are displayed with their command for manual invocation.