Function looksLikeBuildTask

src/agent/preflight-gate.ts:70–79

(prompt: string)

 * "only before an actual mutating tool call." False positives cost one planning turn, not a block.
 */
export function looksLikeBuildTask(prompt: string): boolean {
  if (!prompt) return false;
  // "What architecture does it need?" / "what's wrong with X?" is advisory — answer in chat,
  // don't gate it as a build even though it contains the word "architecture".
  if (looksLikeAdvisoryQuestion(prompt)) return false;
  const p = prompt.toLowerCase();
  if (STRONG_SIGNALS.some(s => p.includes(s))) return true;
  const weak = WEAK_SIGNALS.reduce((n, w) => n + (p.includes(w) ? 1 : 0), 0);
  return weak >= 2 && prompt.length > 120;
}

const PLAN_FILE_RE = /(^|[/\\])(plan|design|architecture|adr|rfc)[^/\\]*\.(md|markdown|txt)$/i;