6.2Architecture

   +----------+         +----------+
   |  ACTOR   |--------→|  CRITIC  |
   | (writes  |         | (reviews |
   |  tests)  |←--------|  tests)  |
   +----------+         +----------+
        |
        |  After critic approves
        v
   +----------+
   |  FINAL   |
   |  SUITE   |
   +----------+

The flow:

1. Actor generates tests from the specification
2. Critic reviews each test against the specification
3. Critic returns feedback: APPROVE, REVISE, or REJECT per test
4. Actor revises based on feedback
5. Repeat until the Critic approves 90%+ of tests (or max rounds reached)
6. Final suite = all approved tests