Tobi Flagship Use Case — AI-Agent Reasoning Gate

This repository is a narrow public Stage 1 use case for AI Verification Engine / Tobi Validator.

It demonstrates a validator-first PR gate around repository-owned .tsubasa artifacts.

What this repo shows

This repo shows four things:

1. a valid Stage 1 .tsubasa artifact that passes canon
2. a drift-equivalent artifact that converges to the same canonical ASCII and the same _h
3. a malformed sibling that rejects deterministically
4. a GitHub Actions gate that blocks invalid artifact changes before merge

The point is not broad language coverage. The point is a narrow, reproducible validator-backed gate.

How it works

The repository carries three artifacts:

• agent_artifacts/merge_token_valid.tsubasa
• agent_artifacts/merge_token_drift_equivalent.tsubasa
• agent_artifacts/merge_token_invalid.tsubasa

The workflow does two jobs:

• PR gate: runs the public Tobi Validator GitHub Action against the valid artifact
• Validation evidence: downloads the released Stage 1 validator bundle, runs canon directly, checks canonical ASCII and _h, and confirms deterministic reject behavior for the malformed sibling

The gate contract is stored in:

• policy/stage1_gate_contract.md

The expected validator outputs are pinned in:

• expected_outputs/

How to run

GitHub Actions path

1. Create a repository secret:

   • TOBI_EVAL_TOKEN

2. Push this repository.

3. Open a pull request or run the workflow manually.

The PR gate uses:

uses: OrganeticSphere/tobi-validator@v1