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CodingAgentBench

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

mutations
mutations/rust-error-negated

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
3.0s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.585

Run identity

cell_id
expansion-20260616/copilot/mistralai/mistral-small-4-119b-2603/mutations/rust-error-negated
sweep_id
expansion-20260616
container_image
codingagentbench/copilot:v1.0.63
image_digest
sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607
model_build_id
mistralai/mistral-small-4-119b-2603
exit_code
0

Timing

started_at
2026-06-17T01:48:30.035338Z
ended_at
2026-06-17T01:48:33.012378Z
duration
2.98 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::first_attempt_ok_returns_immediately ... FAILED\ntest tests::zero_max_attempts_errors ... ok\ntest tests::retries_on_error_until_success ... FAILED\n\nfailures:\n\n---- tests::gives_up_after_max_attempts stdout ----\n\nthread 'tests::gives_up_after_max_attempts' (1268709) panicked at src/lib.rs:72:9:\nassertion `left == right` failed\n left: 1\n right: 3\n\n---- tests::first_attempt_ok_returns_immediately stdout ----\n\nthread 'tests::first_attempt_ok_returns_immediately' (1268708) panicked at src/lib.rs:38:9:\nassertion `left == right` failed\n left: 5\n right: 1\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' (1268710) panicked at src/lib.rs:56:9:\nassertion `left == right` failed\n left: Err(\"attempt 0\")\n right: Ok(7)\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":2977.04,"container_active_ms":2962.8990000000003,"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":true}
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":0.5847496245574363,"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":2977.04,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.8983308303829088,"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 / 2.98 s
span 2be37a0296a944348ae6b0c42e410820task_setupprepare:mutations/rust-error-negated0 ms → 14 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-mutations_rust-error-negated-lunfcn3y/workdir
task_categorymutations
plugin_stack[]
behavior_modefactory

Terminal playback

replay of the run — opencode cells show genuine step timing; others show a span summary
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/copilot:v1.0.63·sha256:sha256:6ad022118…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/copilot:v1.0.63@sha256:sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/copilot:v1.0.63@sha256:sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607 \
  run-cell \
    --tui copilot \
    --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.

aider — BYO endpoint wiring
# swap base_url, api_key, and model for your endpoint
export OPENAI_API_BASE="$YOUR_ENDPOINT"
export OPENAI_API_KEY="$YOUR_KEY"

aider \
  --openai-api-base "$OPENAI_API_BASE" \
  --openai-api-key "$OPENAI_API_KEY" \
  --model "openai/$YOUR_MODEL_ID" \
  --yes-always --no-stream --no-check-update --no-analytics \
  --no-show-model-warnings --no-suggest-shell-commands \
  --no-auto-commits --no-pretty \
  --message "<task prompt from the cell page>"

# 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 copilot \
  --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
2be37a0296a944348ae6b0c42e410820 task_setup prepare:mutations/rust-error-negated 14 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-mutations_rust-error-negated-lunfcn3y/workdir","task_category":"mutations","plugin_stack":[],"behavior_mode":"factory"}
9f50ba7f2b05434aa42e4888666e40e6 ↳ fbd6e93fa13f49429e7831080e4b51d3 tool_call applied_plugins 0 ms {"tui":"copilot","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
4ad015838b9d4f6aad456e26eb22976e ↳ fbd6e93fa13f49429e7831080e4b51d3 container copilot:launch 2963 ms {"image":"codingagentbench/copilot:v1.0.63","argv":["-p","Retry loop condition negated: retries on success, gives up on error","--allow-all"],"timeout_s":600,"exit_code":0,"duration_s":2.9473334140202496,"timed_out":false}
fbd6e93fa13f49429e7831080e4b51d3 adapter_run copilot:mutations/rust-error-negated 2963 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
c7dbc52f36254ef4aaafa3c67c4c6c64 cleanup cleanup:copilot 0 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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CodingAgentBench: copilot × mistralai/mistral-small-4-119b-2603 58%