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devspec SpecLabs

ai cli developer-tools spec-driven-development workflow
Use this command to install devspec:
winget install --id=SpecLabs.Devspec -e

devspec is a spec-driven development framework designed to manage project context, architecture, engineering rules, and work-item workflows for AI coding agents and IDE adapters. It enables teams using GitHub Copilot and other AI tools to maintain consistent workflows across projects and environments.

Key Features:

  • Installs and synchronizes foundation files including project context, tech stack, codebase structure, coding standards, and operational rules.
  • Manages work items from intake to review through structured flows for features, bugs, and security issues.
  • Provides recovery mechanisms from repository artifacts when chat history is unavailable.
  • Supports multiple AI tools including GitHub Copilot, Claude Code, Codex, Cursor, Gemini CLI, and Google Antigravity.

Audience & Benefit: Ideal for developers and engineering teams using AI coding agents. Devspec ensures that all team members and AI tools follow the same workflow and guidelines, improving collaboration and consistency across projects.

README

devspec

devspec is a spec-driven development framework for teams using GitHub Copilot and other AI coding agents.

It stores planning, implementation, review, and recovery state in Git-tracked files instead of relying on chat history. Use it when you want agents to follow the same workflow for project context, engineering standards, work-item intake, implementation, review, and session recovery.

Quick Start

Install with the devspec CLI from the target repository. The recommended one-off path is uvx, which avoids a permanent global install and works well on restricted developer machines.

uvx devspec init --target . --profile all --repo-state existing
uvx devspec doctor --target . --profile all

Use --repo-state new for a new repository. After validation, commit the copied framework files, run the foundation flow, then start the first work item.

For the full setup manual, see docs/how-to/README.md.

Setup Options

SituationStart here
Simplest one-off setupuv and uvx setup
Persistent macOS/Linux package installHomebrew setup
Approved Windows package installWinGet setup
CLI setup paths are blockedManual copy setup

Install profiles let you choose which AI coding agent files to copy. Most multi-agent teams can start with --profile all; single-tool teams can use a smaller profile such as copilot, codex, cursor, claude, gemini, or antigravity.

Core Workflow

devspec has two workflow layers.

LayerPurposeFull guide
Versions
0.1.3
0.1.2
0.1.0
Website
github.com
License
Last updated
7/4/2026
Download latest version
Foundation
Capture stable project context, architecture, stack, structure, standards, and rules.
New repository, existing repository
Work itemsMove one feature, bug, security issue, or accepted change request from intake to review.Work-item lifecycle

For a new project:

New repository foundation flow

/devspec.projectcontext
/devspec.techstack
/devspec.codebase-structure
/devspec.coding-standards
/devspec.rules

For an existing project:

Existing repository foundation flow

/devspec.extract
/devspec.projectcontext
/devspec.techstack
/devspec.codebase-structure
/devspec.coding-standards
/devspec.rules

Then run the work-item flow:

Work-item lifecycle flow

/devspec.story
/devspec.finalize
/devspec.tasks
/devspec.implement
/devspec.review

Use /devspec.clarify only when a work item records a blocking question. Use /devspec.diagram when a diagram would clarify architecture, workflow, state, sequence, or domain behavior.

AI Tool Support

GitHub Copilot prompt and agent files are the reference implementation. Other adapters are thin wrappers around the same command registry and Git-tracked artifacts.

ToolSetup notes
GitHub CopilotNative /devspec.* prompt commands through .github/prompts/ and .github/agents/.
Claude CodeProject skills expose /devspec-* command-style invocations.
OpenAI CodexAGENTS.md provides always-on repository instructions and Codex workflow guidance.
CursorProject rules guide Cursor Agent and Inline Edit.
Gemini CLIGEMINI.md provides context; optional commands expose /devspec:* shortcuts.
Google AntigravityWorkspace rules and skills expose /devspec-* command-style invocations.

Canonical command names remain /devspec.*. Some adapters expose host-native shortcuts such as /devspec:story or /devspec-story; see Command Invocation by Agent.

More Documentation

NeedStart here
Install or troubleshoot setupdocs/how-to/setup/README.md
Run devspec workflowsdocs/how-to/README.md
Use command examplesdocs/how-to/README.md#command-examples
Set up AI coding agentsdocs/how-to/README.md#ai-coding-agent-setup
Work across multiple repositoriesdocs/how-to/README.md#multi-repo-work
Upgrade devspec filesdocs/how-to/README.md#upgrades
Validate adapter behaviordevspec/adapters/validation-flows.md
Review adapter support detailsdevspec/adapters/README.md
Check platform compatibilitydevspec/adapters/compatibility-matrix.md
Plan enterprise rolloutdevspec/adapters/enterprise-governance.md

License

This repository is released under the Apache License 2.0.