KorextKorext Open Source
Open Standard

Track AI generated code in your repository

An open standard for tracking and governing AI generated code in any repository.

npx @korext/ai-attestation init

Tracks

Detects AI tool usage across your git history. Copilot, Cursor, Claude Code, Aider, and 7 more. Fully automatic via git hook.

Attests

Produces a human readable .ai-attestation.yaml file with tool breakdown, commit counts, and governance status.

Governs

Connects to governance engines for compliance scanning, proof bundles, and audit evidence.

The Standard

AI Attestation is a declarative YAML file stored in your repository root, alongside LICENSE and SECURITY.md. It provides machine readable answers to regulators, auditors, and engineering leaders about how much of your code is AI generated.

Badge Preview

AI Attestation Badgeacme / payments-service
.ai-attestation.yaml
# AI Attestation
# https://oss.korext.com/ai-attestation

schema: https://oss.korext.com/ai-attestation/schema
version: "1.0"

repo:
  owner: acme
  name: payments-service
  url: https://github.com/acme/payments-service

generated: "2026-04-15T12:00:00Z"

range:
  from: "2025-01-01T00:00:00Z"
  to: "2026-04-15T12:00:00Z"
  commits: 1247

ai:
  assisted_commits: 438
  percentage: 35.1
  tools:
    - name: GitHub Copilot
      identifier: copilot
      first_seen: "2025-09-01"
      last_seen: "2026-04-15"
      commit_count: 312

    - name: Cursor
      identifier: cursor
      first_seen: "2026-01-15"
      last_seen: "2026-04-14"
      commit_count: 89

Get Your Badge

Generate a dynamic SVG badge for your repository.

Supported Tools

Detects 11 AI coding tools from publicly observable git patterns.

GitHub Copilot
Cursor
Claude Code
Codeium
Aider
OpenAI Codex CLI
Gemini Code Assist
Windsurf
Tabnine
Devin
OpenHands

Why This Matters

35% of production code is now AI generated. The EU AI Act requires transparency. SOX auditors are asking. Insurance questionnaires now include AI tool usage. Your team needs answers before the questions arrive.

Frequently Asked Questions

How does AI Attestation detect AI tools?

AI Attestation analyzes publicly observable git patterns including co-author trailers, commit message patterns, and file header markers. It does not access proprietary data or require API keys.

Is AI Attestation free?

Yes. AI Attestation is free and open source under Apache 2.0. The specification is CC0 1.0 (public domain). There are no paid tiers.

Does it work with private repositories?

Yes. AI Attestation runs entirely locally. Your code never leaves your machine. The CLI reads your local git history and writes a YAML file to your repository root.

What is the governance tier?

The governance tier indicates whether AI generated code in your repository has been scanned by a governance engine. UNGOVERNED means no scanning. SCANNED means a tool has analyzed the code. ATTESTED means cryptographic proof bundles exist for every AI change.

Governance Integration

AI Attestation tracks your AI code. Korext governs it.

Install Korext

Open Source

Help us expand the standard. Contribute patterns and tools.

Star on GitHub