# github/spec-kit

💫 Toolkit to help you get started with Spec-Driven Development

Repository: https://github.com/github/spec-kit
Canonical: https://ross.abutalabs.com/products/spec-kit
Homepage: https://github.github.com/spec-kit/
Language: Python
License: MIT
License Family: permissive
Topics: ai, copilot, development, engineering, prd, spec, spec-driven
Last push: 2026-08-26T21:08:11+00:00

## Health v2 (maintenance only)
Score: 80/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 86, longevity 26
- inputs: {"age_days": 377, "days_push": 7, "days_rel": 12, "gap_med": 0.0, "n_releases_24m": 215}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 131695, forks 11831 (observed 2026-08-28T04:12:24.232989+00:00)

## What it is
Spec Kit is an open-source toolkit from GitHub for Spec-Driven Development, providing a CLI (specify) that scaffolds structured spec, plan, and task artifacts to guide AI coding agents. It supports 38 agent integrations and is extensible via community extensions, presets, and bundles.

## Use cases
- bootstrap a spec-driven development workflow with AI coding agents
- generate structured specs, plans, and tasks before writing code
- use the same spec process across Copilot, Claude, Gemini, and Codex
- customize or replace the development process with extensions and presets
- structure bug fixing and idea assessment with AI agents

## When to choose
- you use AI coding agents and want structured context instead of ad-hoc prompts
- you want to define what to build before building it with a repeatable process
- you need agent-agnostic workflows with no vendor lock-in

## When to avoid
- you prefer writing code directly without upfront specification phases
- your team has no interest in AI-assisted development workflows
- you need a fully automated CI pipeline rather than an interactive development harness

## Facets
- artifact type: cli-tool
- maturity: stable
- function: developer-tools, workflow-automation, agent-framework, prompt-engineering, documentation
- domain: developer-tools, web-development, artificial-intelligence
- platform: cli, cross-platform, python
- tags: spec-driven-development, ai-coding-agents, sdd, copilot, templates, scaffolding, automation

## Member repositories
- github/spec-kit (main) score 80

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:24.232989+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:11:30.499688+00:00, confidence not recorded.
  - readme: https://github.com/github/spec-kit (fetched 2026-08-28T04:12:24.232989+00:00, sha 3567613e7262)
  - homepage: https://github.github.com/spec-kit/ (fetched 2026-08-28T17:26:45.057783+00:00, sha e25da12ec943)
- Data as of 2026-08-30T08:39:29.467469+00:00.