create-github-action-workflow-specification Skill for Claude: What It Does and How to Install It

Makes Claude write a formal, implementation-agnostic specification for an existing GitHub Actions CI/CD workflow.

Installs: 10.8K; on skills.sh
Stars: 40.7K; on GitHub
Updated: Oct 2026; last repo commit

You point Claude at a workflow file, which SKILL.md refers to as WorkflowFile, and it writes a Markdown specification saved as /spec/spec-process-cicd-[workflow-name].md. The spec states what the workflow achieves rather than how it is written, so it avoids syntax, commands and tool versions.

The template has 15 sections, from overview and a Mermaid flow diagram to requirements, input and output contracts, error handling, quality gates, monitoring, edge cases and change management. It is one SKILL.md and bundles no scripts. It comes from github/awesome-copilot, a community collection for GitHub Copilot.

Good for

DevOps engineers documenting a CI/CD workflow
Teams who want a spec to update before changing a pipeline
Maintainers handing workflow context to an AI assistant

Install create-github-action-workflow-specification

Claude Code

Copy this prompt.

Install the create-github-action-workflow-specification skill in Claude Code. Run this command:

npx skills add https://github.com/github/awesome-copilot --skill create-github-action-workflow-specification

Then check that it loaded and tell me how to use it.

2
Paste it into Claude Code. It shows the change and asks before running it.

Requires Node.js.

From its listing on skills.sh. Source.

What's in the skill

When it loads

Create a formal specification for an existing GitHub Actions CI/CD workflow, optimized for AI consumption and workflow maintenance.

Sections in SKILL.md

AI-Optimized Requirements
Specification Template
Workflow Overview
Execution Flow Diagram
Jobs & Dependencies
Requirements Matrix
Functional Requirements
Security Requirements
Performance Requirements
Input/Output Contracts
Inputs
Outputs
Secrets & Variables
Execution Constraints
Runtime Constraints
Environmental Constraints

Key facts

Author: github (repo owner)
License: MIT (crawl data)
Installs on skills.sh: 10,803 (Nov 2, 2026)
GitHub stars: 40,666 for the whole github/awesome-copilot repo (Nov 2, 2026)
Last repo commit: Oct 30, 2026
What it includes: 1 file: SKILL.md only (no scripts)
Needs: The path to an existing GitHub Actions workflow file, which SKILL.md calls WorkflowFile

What it includes

Seven steps from core purpose to abstracting the implementation
Extract the purpose, map job flow, identify contracts, capture constraints, define quality gates, document error paths and focus on behavior.
Try: “Write a spec for .github/workflows/ci.yml.”
Read · Analysis instructions
15 sections from overview to related specifications
Saved as /spec/spec-process-cicd-[workflow-name].md, with front matter for title, version, dates, owner and tags.
Write · Specification template
Mermaid for sequential, parallel and conditional flow
Includes node styling, and subgraphs for workflows with five or more jobs.
Write · Flow diagram guidance
REQ, SEC and PERF tables, inputs, outputs and secrets
Tables for functional, security and performance requirements, plus secrets and variables by scope.
Write · Requirements and contracts
Five rules for compact, AI-friendly specs
Use tables, abbreviate consistently, prefer bullets, use code blocks for structured data and cross-reference instead of repeating.
Read · Token optimization

From the official docs

Questions

What does this skill do?

It makes Claude write a formal specification for a GitHub Actions workflow you already have. The spec describes behavior, requirements and constraints, not the YAML itself.

How do I install it?

Use the install box at the top of this page. It is a single SKILL.md folder from the github/awesome-copilot repository.

Where does the spec go?

SKILL.md says to save it as /spec/spec-process-cicd-[workflow-name].md.

Which workflow does it use?

The one named in SKILL.md's WorkflowFile placeholder. In a plain chat, tell Claude the workflow file path (our advice).

Why would I want a spec for a workflow?

SKILL.md's change process starts with updating the specification before changing the workflow. It is also meant to be compact enough for AI use, with tables and diagrams over prose.

Is it safe?

It bundles no scripts. Claude reads your workflow file and writes one Markdown file under /spec/. Review the file before you commit it, because it describes your pipeline, secrets names and permissions.

Information

updated Nov 2, 2026

Repository: github/awesome-copilot
Folder: skills/create-github-action-workflow-specification

github/awesome-copilot skills.sh

Sources

Docs, issue trackers and discussions this page is built from.

Show all 2

create-github-action-workflow-specification SKILL.md · github.com
awesome-copilot README · github.com