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CodingAgentBench

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

polyglot
polyglot/go-http-handler-fix

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
15.6s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.557

Run identity

cell_id
expansion-20260616/openhands/meta/llama-4-maverick-17b-128e-instruct/polyglot/go-http-handler-fix
sweep_id
expansion-20260616
container_image
codingagentbench/openhands:1.7.0
image_digest
sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c
model_build_id
meta/llama-4-maverick-17b-128e-instruct
exit_code
0

Timing

started_at
2026-06-17T07:00:43.396996Z
ended_at
2026-06-17T07:00:58.970746Z
duration
15.57 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":1,"timed_out":false,"stdout_tail":"--- FAIL: TestGreet_MissingNameReturns400 (0.00s)\n handler_test.go:34: status: got 200 want 400\n--- FAIL: TestGreet_EmptyNameReturns400 (0.00s)\n handler_test.go:44: status: got 200 want 400\nFAIL\nFAIL\tcodingagentbench/gohttphandler\t0.003s\nFAIL\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":15573.75,"container_active_ms":15573.055999999999,"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/go-http-handler-fix"}
composite composite, weights, components, note {"composite":0.5565496484176503,"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":15573.75,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.710330989451002,"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 / 15.57 s
span 022fe1c5b3c34866aebfe187f5764b8dadapter_runopenhands:polyglot/go-http-handler-fix0 ms → 15.57 s
timeout_s600
plugin_stack[]
exit_code0

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/openhands:1.7.0·sha256:sha256:7fcaf2226…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/openhands:1.7.0@sha256:sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/openhands:1.7.0@sha256:sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c \
  run-cell \
    --tui openhands \
    --model meta/llama-4-maverick-17b-128e-instruct \
    --task polyglot/go-http-handler-fix

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: 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 openhands \
  --model meta/llama-4-maverick-17b-128e-instruct \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task polyglot/go-http-handler-fix
# 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
4afd2ddcc86c4af3955b26794e7ecbbe task_setup prepare:polyglot/go-http-handler-fix 0 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-openhands-polyglot_go-http-handler-fix-bhf8hsxb/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
67baa4d4fd4646a39c5fd91688c8a8f1 ↳ 022fe1c5b3c34866aebfe187f5764b8d tool_call applied_plugins 0 ms {"tui":"openhands","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
5a284ac3f3b446d287b00899a2c48168 ↳ 022fe1c5b3c34866aebfe187f5764b8d container openhands:run 15573 ms {"image":"codingagentbench/openhands:1.7.0","command":["/app/.venv/bin/python","/opt/openhands_run.py","-t","HTTP handler writes body before setting status code, locking the response to 200","--workspace","/workspace"],"deviation":"root+docker.sock; see module docstring","exit_code":0,"timed_out":false,"docker_sock_mounted":true,"read_only":false}
022fe1c5b3c34866aebfe187f5764b8d adapter_run openhands:polyglot/go-http-handler-fix 15573 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
8be8a084bcce4d49af834464a685a17f cleanup cleanup:openhands 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: openhands × meta/llama-4-maverick-17b-128e-instruct 56%