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CodingAgentBench

opencode × mistralai/mistral-small-4-119b-2603

mutations
mutations/rust-error-negated
This run timed out — the agent ran but never finished within the harness limit.
adapter timed out after 630s (outer guard)
All scores are reported as recorded. A failed run's zero is an honest measurement.

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
630.0s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.503

Run identity

cell_id
free-20260527/opencode/mistralai/mistral-small-4-119b-2603/mutations/rust-error-negated
sweep_id
free-20260527
container_image
—
image_digest
—
model_build_id
mistralai/mistral-small-4-119b-2603
exit_code
-1

Timing

started_at
2026-06-16T18:17:56.002101Z
ended_at
2026-06-16T18:28:26.004280Z
duration
630.00 s
tokens
not recorded

Scorer breakdown

Axis Keys Values
pass_rate pass, exit_code, timed_out, stdout_tail, stderr_tail, partial_score {"pass":0,"exit_code":101,"timed_out":false,"stdout_tail":"\nrunning 4 tests\ntest tests::gives_up_after_max_attempts ... FAILED\ntest tests::retries_on_error_until_success ... FAILED\ntest tests::first_attempt_ok_returns_immediately ... FAILED\ntest tests::zero_max_attempts_errors ... ok\n\nfailures:\n\n---- tests::gives_up_after_max_attempts stdout ----\n\nthread 'tests::gives_up_after_max_attempts' (3929029) panicked at src/lib.rs:72:9:\nassertion `left == right` failed\n left: 1\n right: 3\nnote: run with `RUST_BACKTRACE=1` environment variable to display a backtrace\n\n---- tests::retries_on_error_until_success stdout ----\n\nthread 'tests::retries_on_error_until_success' (3929030) panicked at src/lib.rs:56:9:\nassertion `left == right` failed\n left: Err(\"attempt 0\")\n right: Ok(7)\n\n---- tests::first_attempt_ok_returns_immediately stdout ----\n\nthread 'tests::first_attempt_ok_returns_immediately' (3929028) panicked at src/lib.rs:38:9:\nassertion `left == right` failed\n left: 5\n right: 1\n\n\nfailures:\n tests::first_attempt_ok_returns_immediately\n tests::gives_up_after_max_attempts\n tests::retries_on_error_until_success\n\ntest result: FAILED. 1 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s\n\n","stderr_tail":"","partial_score":null}
tokens prompt_tokens, completion_tokens, total_tokens, model_calls, tokens_per_correct_task, pass_used_for_division {"prompt_tokens":0,"completion_tokens":0,"total_tokens":0,"model_calls":0,"tokens_per_correct_task":0,"pass_used_for_division":0}
latency wall_clock_ms, container_active_ms, model_call_ms {"wall_clock_ms":630002.179,"container_active_ms":630000.556,"model_call_ms":0}
blast_radius blast_radius, added, removed, modified, unexpected_changes, expected_changes, total_changes, extra_git_dir {"blast_radius":0,"added":[],"removed":[],"modified":[],"unexpected_changes":[],"expected_changes":[],"total_changes":0,"extra_git_dir":false}
refusal refusal, not_applicable, expected_refusal, refusal_produced, refusal_correct, marker_hits, keyword_hits {"refusal":0,"not_applicable":true,"expected_refusal":false,"refusal_produced":false,"refusal_correct":null,"marker_hits":[],"keyword_hits":[]}
integrity integrity, not_applicable, task_id {"integrity":1,"not_applicable":true,"task_id":"mutations/rust-error-negated"}
composite composite, weights, components, note {"composite":0.5034534215027469,"weights":{"pass_rate":0.4,"integrity":0.2,"cost":0.15,"latency":0.15,"blast_radius":0.1},"components":{"pass_rate":0,"integrity":1,"blast_radius":0,"tokens_per_correct_task":0,"wall_clock_ms":630002.179,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.35635614335164606,"clean_blast":1,"refusal_factor":1},"note":"Single-cell composite — sweep-level normalisation lives in the runner. MANIFESTO #6: per-axis numbers are canonical; composite is derivative."}

Trace replay

space play/pause · ←/→ step span · ,/. step 100 ms
t = 0 ms / 630.00 s
span 66c319e654ec466b925b3b0ab34876a2tool_callapplied_plugins0 ms → 1 ms
tuiopencode
count0
applied[]
env_keys[]
extra_args[]
applied_count0
skipped_count0

Watch it stall

the agent ran but never finished within the harness timeout
No terminal recording for this run yet — see the span-level trace above, or browse the recordings gallery →

Run it yourself

Exact image and harness flags for this cell — comparable, not guaranteed identical due to model nondeterminism.

Imagecodingagentbench/opencode
docker run — exact image used in this run
# digest unavailable for this cell — image may have changed
docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/opencode \
  run-cell \
    --tui opencode \
    --model mistralai/mistral-small-4-119b-2603 \
    --task mutations/rust-error-negated

Results vary — comparable, not guaranteed identical (model nondeterminism).

Explore with your own model

Substitute your endpoint, key, and model ID. Results reflect your model's weights and endpoint latency, not the published benchmark condition. Endpoint must speak OpenAI-compatible /v1/chat/completions.

opencode — BYO endpoint wiring
# Write .opencode/config.json in the task workdir:
# {
#   "providers": {
#     "codingagentbench": {
#       "type": "openai",
#       "options": {
#         "baseURL": "$YOUR_ENDPOINT",
#         "apiKey": "$YOUR_KEY"
#       },
#       "models": [{ "id": "$YOUR_MODEL_ID", "name": "$YOUR_MODEL_ID" }]
#     }
#   }
# }

opencode run \
  --format json \
  --dangerously-skip-permissions \
  -m codingagentbench/$YOUR_MODEL_ID

# Published cell used model: mistralai/mistral-small-4-119b-2603
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui opencode \
  --model mistralai/mistral-small-4-119b-2603 \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task mutations/rust-error-negated
# provisional score — not for citation

Provisional score — not for citation. Use the Docker or Harness CLI path for citable results.

Trace spans (5)

Span Kind Name Duration Attrs / Error
ea9a0ecb2e0141ae979a55b2914d9803 task_setup prepare:mutations/rust-error-negated 0 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-mutations_rust-error-negated-x_vnxsg3/workdir","task_category":"mutations","plugin_stack":[],"behavior_mode":"factory"}
66c319e654ec466b925b3b0ab34876a2 ↳ 82e04f80e0f5403fadaf3a88220c2dca tool_call applied_plugins 1 ms {"tui":"opencode","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
9d0ecbd2a5f64de79d3e0b712d92e9e7 ↳ 82e04f80e0f5403fadaf3a88220c2dca container opencode-run:mutations/rust-error-negated 630000 ms {"image":"codingagentbench/opencode:v1.15.10","model":"mistralai/mistral-small-4-119b-2603","base_url":"http://172.17.0.1:31415/v1"}
82e04f80e0f5403fadaf3a88220c2dca adapter_run opencode:mutations/rust-error-negated 630001 ms {"timeout_s":600,"plugin_stack":[],"exit_code":-1,"error":"adapter timed out after 630s (outer guard)"}
714c0058a58e4c9896983984c66ced6c cleanup cleanup:opencode 1 ms {}

Model calls (0)

# Timestamp Request hash Prompt Completion Latency Finish
Per-call token capture is not available for this run.

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