Function ratchetAutoDisabled

src/agent/tool-profile.ts:139–147

(prevDisabled: string[], prompt: string)

 * are never added mid-session — the tool list only grows. Pure.
 */
export function ratchetAutoDisabled(prevDisabled: string[], prompt: string): string[] {
  if (prevDisabled.length === 0) return prevDisabled;
  const keep = new Set(prevDisabled);
  for (const g of GROUPS) {
    if (!g.keepIfPrompt.test(prompt)) continue;
    for (const n of [...keep]) if (g.members(n)) keep.delete(n);
  }
  return [...keep].sort();
}