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CodingAgentBench

opencode × meta/llama-4-maverick-17b-128e-instruct

polyglot
polyglot/rust-error-handling

Per-axis scores

Pass
0.000
Tokens/correct
Wall
7.4s
Blast
0.000
Refusal
Integrity
1.000
Composite
0.571

Run identity

cell_id
expansion-20260616/opencode/meta/llama-4-maverick-17b-128e-instruct/polyglot/rust-error-handling
sweep_id
expansion-20260616
container_image
codingagentbench/opencode:v1.15.10
image_digest
sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275
model_build_id
meta/llama-4-maverick-17b-128e-instruct
exit_code
0

Timing

started_at
2026-06-17T06:21:29.358677Z
ended_at
2026-06-17T06:21:36.727838Z
duration
7.37 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 5 tests\ntest tests::bad_input_does_not_panic ... FAILED\ntest tests::bad_input_reports_index_and_value ... FAILED\ntest tests::empty ... ok\ntest tests::happy_path ... ok\ntest tests::negative_numbers ... ok\n\nfailures:\n\n---- tests::bad_input_does_not_panic stdout ----\n\nthread 'tests::bad_input_does_not_panic' (2190101) panicked at src/lib.rs:12:32:\ncalled `Result::unwrap()` on an `Err` value: ParseIntError { kind: InvalidDigit }\nnote: run with `RUST_BACKTRACE=1` environment variable to display a backtrace\n\n---- tests::bad_input_reports_index_and_value stdout ----\n\nthread 'tests::bad_input_reports_index_and_value' (2190102) panicked at src/lib.rs:12:32:\ncalled `Result::unwrap()` on an `Err` value: ParseIntError { kind: InvalidDigit }\n\n\nfailures:\n tests::bad_input_does_not_panic\n tests::bad_input_reports_index_and_value\n\ntest result: FAILED. 3 passed; 2 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":7369.161,"container_active_ms":7367.936000000001,"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":"polyglot/rust-error-handling"}
composite composite, weights, components, note {"composite":0.5709893208890278,"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":7369.161,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.8065954725935183,"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 / 7.37 s
span eb606f84bc754cfe916651b79774d817task_setupprepare:polyglot/rust-error-handling0 ms1 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-polyglot_rust-error-handling-8gb_3ufm/workdir
task_categorypolyglot
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/opencode:v1.15.10·sha256:sha256:e56bdb69f…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/opencode:v1.15.10@sha256:sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/opencode:v1.15.10@sha256:sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275 \
  run-cell \
    --tui opencode \
    --model meta/llama-4-maverick-17b-128e-instruct \
    --task polyglot/rust-error-handling

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: meta/llama-4-maverick-17b-128e-instruct
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui opencode \
  --model meta/llama-4-maverick-17b-128e-instruct \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task polyglot/rust-error-handling
# 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
eb606f84bc754cfe916651b79774d817 task_setup prepare:polyglot/rust-error-handling 1 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-polyglot_rust-error-handling-8gb_3ufm/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
d197858c40da41198ad051a4f88d076f ↳ 94a42620659048d4a639c57e79da5885 tool_call applied_plugins 0 ms {"tui":"opencode","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
e8f5a178f53c4061a475785612188fff ↳ 94a42620659048d4a639c57e79da5885 container opencode-run:polyglot/rust-error-handling 7368 ms {"image":"codingagentbench/opencode:v1.15.10","model":"meta/llama-4-maverick-17b-128e-instruct","base_url":"http://172.17.0.1:31415/v1","exit_code":0,"duration_s":7.354,"timed_out":false,"image_digest":"sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275"}
94a42620659048d4a639c57e79da5885 adapter_run opencode:polyglot/rust-error-handling 7368 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
f2cceae3bfdb46acacd6461e231b3254 cleanup cleanup:opencode 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: opencode × meta/llama-4-maverick-17b-128e-instruct 57%