capability · T1 · instruction
Strict JSON passed
cap_inst_001
Score
100%
Turns
1
1 useful · 0 useless
Interventions
0
harness hints (HHI)
Tool calls
0/0
matched expected trajectory
Errors
0/0
recovered / total
Latency
520ms
Tokens
82
0 reasoning
Cost
$0.00002
Trajectory timeline
Turn-by-turn replay · useless turns annotated with the classifier reason
- #0modelusefulresponse
Prompt / output inspector
instruction
Return a JSON object with keys "name" (string), "age" (integer) and "languages" (array of strings) describing a fictional developer. Output only the JSON, no prose, no code fences.
final output
{"name":"Ada Kestrel","age":31,"languages":["TypeScript","Go"]}expected
{"type":"json_schema","requiredKeys":["name","age","languages"]}Spans
1 recorded · tokens & cost per span
- generate520ms66 in · 0 cached · 16 out · $0.00002 · ttft 365ms
Events
- task_started{"trial":0,"taskId":"cap_inst_001","scaffold":null}
- task_finished{"score":1,"passed":true,"taskId":"cap_inst_001","failureLabel":null}
Scorer metadata
{
"toolLog": [],
"scaffold": null
}Capabilityjson_schemadifficulty 1/5