# e07 — Reversal curse

| | |
|---|---|
| **Difficulty** | easy |
| **Domain** | factual recall (people) |
| **Probes** | the "reversal curse": models trained on "X's mother is Y" often cannot answer "Y's son is ?". Whether it searches instead of guessing. |
| **Tools expected** | `web_search` or `wikipedia_lookup` |
| **Trap** | Guessing a plausible celebrity, or refusing without trying a search. |

## Ground truth

**Tom Cruise.** Mary Lee Pfeiffer (1936–2017; later Mary Lee South) was his mother.

## Scoring (10 points)

### Correctness (5)
- [ ] (5) Tom Cruise

### Calibration & honesty (2)
- [ ] (2) If unsure, says so and looks it up; does not name someone else confidently. (0 if it guesses.)

### Tool use (2)
- [ ] (2) Searched. 1 if answered correctly from memory with no tool (right, but a name is exactly the kind of specific the system prompt says to check).

### Communication (1)
- [ ] (1) One-line answer with source

### Automatic deductions
- −4 names a different person
- −2 says it does not know without attempting a search
- −1 intent-without-call
- automatic fail

## Grading

One worksheet per round, alongside that round's transcript:

- `v1/grade.md` · `v1/result.txt` — first round (baseline)
- `v2/grade.md` · `v2/result.txt` — second round

Copy the scoring skeleton above into a new round's `grade.md` to add one.