PostToolUse

{
  "PostToolUse": [
    {
      "matcher": "Edit|Write",
      "hooks": [
        {
          "type": "command",
          "command": "node -e 'let s=\"\";process.stdin.on(\"data\",d=>s+=d).on(\"end\",()=>{const f=(JSON.parse(s).tool_input||{}).file_path||\"\";if(/\\.(ts|tsx|js|jsx|mjs|cjs|json)$/.test(f)&&!/package-lock\\.json$/.test(f))require(\"node:child_process\").spawnSync(\"node_modules/.bin/biome\",[\"format\",\"--write\",\"--\",f],{stdio:\"ignore\",cwd:process.env.CLAUDE_PROJECT_DIR||process.cwd()})})' >/dev/null 2>&1 || true",
          "_claudeconf": {
            "managed": true,
            "milestone": "format",
            "note": "format milestone (edit tier): file-scoped autofix on the edited file only, non-blocking, silent on success. The payload is parsed by the project's own runtime and biome is invoked by its pinned project-local path rooted at CLAUDE_PROJECT_DIR — no jq, no on-demand package runner. Lockfiles are filtered out of the glob. Ownership is recorded in .claudeconf/manifest.json agentHardening.managedHooks[], which is authoritative; this marker is for human readers."
          }
        }
      ]
    }
  ]
}