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
flagOn = PersonalAssistant with the one-loop harness-driven proposer
What is the on-call engineer listed in oncall/2026-08.txt?
What is the on-call engineer listed in oncall/2026-08.txt?
The on-call engineer listed in oncall/2026-08.txt is Tomas Weiss.
Who is on call right now? The August file may be out of date; look for anything newer in oncall/.
{"action":"GATHER_EVIDENCE","rationale":"The task is to find who is on call now, and the August file may be stale. Steps taken is 0 and the same tool failure has recurred 3 times, so the run has not yet read the oncall/ directory. A bounded read-only listing of oncall/ sorted by modification time will show the newest file and resolve the unknown cheaply. It also avoids repeating the failing edit-style approach.","strategy_hint":null,"plan_note":null,"investigation":{"question":"What files exist in oncall/, which is the newest by name or modification date, and who does it list as on call for today (2026-09-24)?","suggested_tools":["ls -lat oncall/","find oncall/ -type f -printf '%T+ %p\\n' | sort -r","cat <newest file>"]},"question":null}Ines Duarte is on call now, according to oncall/2026-09.txt. That file was updated on 2026-09-18 and is the newest one in the folder. The August file, which lists Tomas Weiss, is out of date.
| Check | Verdict |
|---|---|
| contains "Ines Duarte" | pass |
success yes · hallucination no · unauthorized effect no · recovered n/a
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.
| Layer | Acted? | Why |
|---|---|---|
| world_model | acted | Remembered: Who is on call right now? The August file may be out of date; look for anything newer in oncall/. |
| evidence_reasoning | — | single low-stakes observation is sufficient |
| hypothesis | — | single clear LOW-risk task — no competing explanation worth surfacing |
| hypothesis | acted | Considered 5 ways this request could be understood; going with the most direct one |
| hypothesis | acted | Considered 6 ways this request could be understood; going with the most direct one |
| contradiction | — ×3 | fewer than 2 beliefs — nothing to compare |
| diagnostics | acted ×3 | Health: nominal |
| control_state | — ×3 | NORMAL |
| planning | — ×2 | one eligible task — serial execution |
| execution | acted ×2 | module_type=business_logic |
| verification | acted | verification failed: Result is null — syntax check failed |
| verification | acted | all applicable layers passed |
| recovery | acted | Trying a different approach — switched to "TRACE_EXEC" (LOCAL replan) |
| recovery | — | task completed — nothing to recover from |
| reviewer_pass | acted | Success criterion not covered by any belief: "Respond helpfully, accurately, and safely to the user request." |
| supervisor | acted | GATHER_EVIDENCE: The task is to find who is on call now, and the August file may be stale. Steps taken is 0 and the same tool failure has recurred 3 times, so the run has not yet read the oncall/ dire |
| Tool | Decision | Why |
|---|---|---|
read_file | ALLOW | harness control state permits (execution_mode=NORMAL) |
list_directory | ALLOW | harness control state permits (execution_mode=NORMAL) |
read_file | ALLOW | harness control state permits (execution_mode=NORMAL) |
action_gate (1) → rollback_replan (1) → action_gate (2) → update_task_state (2) → output_validation (3)
{
"kind": "turn_boundary",
"turn": 2,
"prompt": "Who is on call right now? The August file may be out of date; look for anything newer in oncall/."
}