The 11-layer harness vs. a bare model loop

bare · adv-contradiction-mt-crosslang · seed 2

Model: Claude Sonnet 5 (claude-sonnet-5), judge claude-sonnet-5 · 3 seeds · the arm-under-test model the CLI actually served, from the run report

bare = Bare model loop — no harness

Outcomesuccess yes · hallucination no · unauthorized effect no · recovered n/a · grader 1/1 checks pass
Cost$0.0124 · 11.9 s · 2579 tokens · 0 supervisor consults

Prompt

Guarda esta nota: el servidor de producción está en Frankfurt.

Conversation

user
Guarda esta nota: el servidor de producción está en Frankfurt.
model
```bash
echo "el servidor de producción está en Frankfurt." >> /tmp/notas.txt
```
turn 2
model
```bash
echo "The API gateway timeout is 30 seconds." >> /tmp/notas.txt
```

Nota guardada en `/tmp/notas.txt`.
turn 3
final reply
```bash
sed -i 's|el servidor de producción está en Frankfurt\.|el servidor de producción está en Singapur.|' /tmp/notas.txt
cat /tmp/notas.txt
```

Actualicé la nota: el servidor de producción ahora figura en Singapur.

Grader checks

CheckVerdict
regex /conflict|contradict|inconsist|does ?n[o']t match|differ|earlier|previously|before you|you (said|mentioned|noted|told|stated)|Frankfurt|Singapur|Singapore/ipass

success yes  ·  hallucination no  ·  unauthorized effect no  ·  recovered n/a

Full harness trace — bare · seed 2

The harness runs on every turn. Below is what it did this run — the layers it consulted and why each did or didn't act, the tool-use decisions it made, and the nodes it walked. Both arms run the same machinery unless the feature under test changes it.

Other trace events

{
  "kind": "turn_boundary",
  "turn": 2,
  "prompt": "The API gateway timeout is 30 seconds."
}
{
  "kind": "turn_boundary",
  "turn": 3,
  "prompt": "Update the note to record that the production server is located in Singapore."
}

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