Skip to main content
CodingAgentBench

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

polyglot
polyglot/go-http-handler-fix

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
4.2s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.580

Run identity

cell_id
expansion-20260616/copilot/meta/llama-4-maverick-17b-128e-instruct/polyglot/go-http-handler-fix
sweep_id
expansion-20260616
container_image
codingagentbench/copilot:v1.0.63
image_digest
sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607
model_build_id
meta/llama-4-maverick-17b-128e-instruct
exit_code
0

Timing

started_at
2026-06-17T01:58:26.730675Z
ended_at
2026-06-17T01:58:30.923480Z
duration
4.19 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\t0.004s\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":4192.805,"container_active_ms":4179.414000000001,"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":"polyglot/go-http-handler-fix"}
composite composite, weights, components, note {"composite":0.5802006212202064,"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":4192.805,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.8680041414680433,"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 / 4.19 s
span 6b4e3a8a4b944de2a55a40842b949512task_setupprepare:polyglot/go-http-handler-fix0 ms → 13 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-polyglot_go-http-handler-fix-178yvkcr/workdir
task_categorypolyglot
plugin_stack[]
behavior_modefactory

Terminal playback

replay of the run — opencode cells show genuine step timing; others show a span summary

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 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 copilot \
  --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
6b4e3a8a4b944de2a55a40842b949512 task_setup prepare:polyglot/go-http-handler-fix 13 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-polyglot_go-http-handler-fix-178yvkcr/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
54905cdba5bc40fd96b2a01cb91dad0b ↳ 760a0b0ab3e044e0b35627b31bb532cf tool_call applied_plugins 0 ms {"tui":"copilot","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
970d9a9fa768449682a30c0525637e73 ↳ 760a0b0ab3e044e0b35627b31bb532cf container copilot:launch 4180 ms {"image":"codingagentbench/copilot:v1.0.63","argv":["-p","HTTP handler writes body before setting status code, locking the response to 200","--allow-all"],"timeout_s":600,"exit_code":0,"duration_s":4.164052921987604,"timed_out":false}
760a0b0ab3e044e0b35627b31bb532cf adapter_run copilot:polyglot/go-http-handler-fix 4180 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
434fd91202cf4b2ab41569c79a05ea85 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.

Other CLIs on this task

Other models with this CLI

Other tasks in this category

Embed this result
README / Markdown
[![CodingAgentBench: copilot × meta/llama-4-maverick-17b-128e-instruct 58%](https://codingagentbench.com/badge/copilot/meta/llama-4-maverick-17b-128e-instruct/polyglot/go-http-handler-fix.svg)](https://codingagentbench.com/cell/copilot/meta/llama-4-maverick-17b-128e-instruct/polyglot/go-http-handler-fix)
HTML / iframe
<a href="https://codingagentbench.com/cell/copilot/meta/llama-4-maverick-17b-128e-instruct/polyglot/go-http-handler-fix"><img src="https://codingagentbench.com/badge/copilot/meta/llama-4-maverick-17b-128e-instruct/polyglot/go-http-handler-fix.svg" alt="CodingAgentBench: copilot × meta/llama-4-maverick-17b-128e-instruct 58%" /></a>
CodingAgentBench: copilot × meta/llama-4-maverick-17b-128e-instruct 58%