Function main

tools/spec-loop/hooks/gate.ts:193–243

()

}

async function main(): Promise<never> {
  let payload: unknown;
  try {
    const raw = await readStdin();
    payload = raw.trim() === "" ? {} : JSON.parse(raw);
  } catch {
    allow("No hook payload parsed; fail open.");
  }

  const cwd = process.cwd();
  const spec = findSpec(cwd);
  if (spec === null) {
    allow("No .specs/next.md found in this project; spec loop not active.");
  }

  const root = projectRootFor(spec);
  const paths = extractPaths(payload, root);
  if (paths.length === 0) {
    allow("No file path detected.");
  }

  if (!paths.some((path) => isSource(path))) {
    allow(
      "Specs, tests, docs, config, and workflow files are allowed before approval."
    );
  }

  let text: string;
  try {
    text = readFileSync(spec, "utf8");
  } catch (error: unknown) {
    const name = error instanceof Error ? error.constructor.name : "Error";
    allow(`Spec found but unreadable (${name}); failing open.`);
  }

  const relSpec = relative(root, spec).split(sep).join(posix.sep);

  if (text.split("\n").length > MAX_SPEC_LINES) {
    block(
      `Source write blocked: ${relSpec} is over ${String(MAX_SPEC_LINES)} lines. Shrink the slice; don't add ceremony.`
    );
  }

  if (!isApproved(text)) {
    block(
      `Source write blocked. Review ${relSpec}, then run your spec slash command with \`approve\` (Claude Code plugin: \`/solo-spec-loop:spec approve\`) once you have explicitly approved the slice.`
    );
  }

  allow("Approved micro-spec found; source writes allowed for this slice.");
}

void main();