Function ev

test/skill-failures.test.ts:29–30

(task: string, tool: string, err: string)

describe('detectFailurePatterns — learns ONLY from repetition across tasks', () => {
  const ev = (task: string, tool: string, err: string): FailureEvent =>
    ({ ts: '', task, tool, signature: normalizeFailureSignature(tool, err), sample: err });

  it('a one-off failure is NOT a pattern', () => {
    const events = [ev('t1', 'edit_symbol', "Cannot find 'a'")];