agent-quality-gate

agent-quality-gate provides a locked Oxlint and Fallow quality gate for AI-assisted TypeScript and JavaScript projects.

Requirements

• macOS or Linux on ARM64 or x64. Windows is not supported.
• Node.js 24.19.0 or newer and Bun 1.3.14 or newer.

Setup

Install the release archive directly from GitHub:

bun add -d https://github.com/greenhost87/agent-quality-gate/releases/download/v0.3.4/agent-quality-gate-0.3.4.tgz

Add the package commands to package.json:

{
  "scripts": {
    "verify": "verify",
    "generate-agent-guide": "generate-agent-guide"
  }
}

Create agent-quality-gate.config.json in the project root with at least one project entry:

{
  "entries": ["src/index.ts"]
}

Generate the project-specific agent guide:

bun run generate-agent-guide

Reference the generated agent-quality-gate.md from the root AGENTS.md:

Before changing JavaScript or TypeScript, read `agent-quality-gate.md` and run `bun run --silent verify` after the change.

Usage

bun run --silent verify

verify first rejects invalid configuration and forbidden lint suppression directives. It then runs type-aware Oxlint with TypeScript type checking and Fallow checks for unused code and dependencies, cycles, duplication, complexity, and suppressions.

Oxlint and Fallow run concurrently. If either fails, findings are printed in a stable order with Oxlint first and Fallow second. A successful run prints verify: ok.

The embedded policy cannot be replaced or disabled by local Oxlint or Fallow configuration files.

Configuration

All supported options are shown below:

{
  "entries": ["src/index.ts", "bin/*.ts"],
  "fallowIgnorePatterns": ["migrations/**"],
  "health": {
    "maxCyclomatic": 10,
    "maxCognitive": 15,
    "maxCrap": 999
  },
  "plugins": [
    {
      "name": "project",
      "specifier": "./tools/oxlint-project-plugin.mjs",
      "rules": {
        "project/no-custom-pattern": "error"
      }
    }
  ]
}

• entries is a required non-empty list of project-relative Fallow entry globs.
• fallowIgnorePatterns excludes project-relative globs from Fallow only. Oxlint still checks them.
• health overrides per-function complexity limits. maxCyclomatic and maxCognitive accept integers from 0 through 65535, and maxCrap accepts any non-negative number. Defaults are 20, 15, and 999.
• plugins adds project-specific Oxlint rules. Omit specifier for a native Oxlint plugin, or set it to a local file or installed package for a JavaScript plugin. Rule names must start with the declared plugin name. Local plugin files become Fallow entries automatically. Plugins cannot replace or disable locked rules.

Development

bun install --frozen-lockfile
bun run --silent verify
bun run test

License

MIT. See LICENSE.