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CodingAgentBench

goose × stepfun-ai/step-3.5-flash

polyglot
polyglot/java-null-safety

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
68.1s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.529

Run identity

cell_id
free-20260527/goose/stepfun-ai/step-3.5-flash/polyglot/java-null-safety
sweep_id
free-20260527
container_image
codingagentbench/goose:v1.35.0
image_digest
sha256:b105cf72a2cb923875ba8896a68c835b29025d9e24e7fb39ca95856ec105a3a6
model_build_id
stepfun-ai/step-3.5-flash
exit_code
0

Timing

started_at
2026-06-16T17:35:17.868631Z
ended_at
2026-06-16T17:36:25.986295Z
duration
68.12 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":"ok normal\n","stderr_tail":"Exception in thread \"main\" java.lang.NullPointerException\n\tat UserGreeter.greet(UserGreeter.java:5)\n\tat Tests.main(Tests.java:18)\n","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":68117.664,"container_active_ms":67588.173,"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/java-null-safety"}
composite composite, weights, components, note {"composite":0.5292498003480034,"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":68117.664,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.5283320023200231,"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 / 68.12 s
span 98c15af13ad845a99a0eb7ce5e247be2task_setupprepare:polyglot/java-null-safety0 ms → 1 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-goose-polyglot_java-null-safety-0lrue728/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/goose:v1.35.0·sha256:sha256:b105cf72a…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/goose:v1.35.0@sha256:sha256:b105cf72a2cb923875ba8896a68c835b29025d9e24e7fb39ca95856ec105a3a6

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/goose:v1.35.0@sha256:sha256:b105cf72a2cb923875ba8896a68c835b29025d9e24e7fb39ca95856ec105a3a6 \
  run-cell \
    --tui goose \
    --model stepfun-ai/step-3.5-flash \
    --task polyglot/java-null-safety

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: stepfun-ai/step-3.5-flash
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui goose \
  --model stepfun-ai/step-3.5-flash \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task polyglot/java-null-safety
# provisional score — not for citation

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

Trace spans (6)

Span Kind Name Duration Attrs / Error
98c15af13ad845a99a0eb7ce5e247be2 task_setup prepare:polyglot/java-null-safety 1 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-goose-polyglot_java-null-safety-0lrue728/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
2eda43e8c19342d0a7a7e009b57ad151 ↳ 240964c9d539473995ec203898b25df7 tool_call applied_plugins 0 ms {"tui":"goose","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
c88310fa7d9a435b9ecf672c96fab715 ↳ 240964c9d539473995ec203898b25df7 tool_call goose:extensions 0 ms {"extensions":[],"count":0}
cf12a2c2e73747e9a8ec3a72bb42f472 ↳ 240964c9d539473995ec203898b25df7 container goose:run 67588 ms {"image":"codingagentbench/goose:v1.35.0","command":["run","--no-session","-t","User class lookup crashes on null fields; rewrite to return empty string instead of NPE"],"exit_code":0,"timed_out":false}
240964c9d539473995ec203898b25df7 adapter_run goose:polyglot/java-null-safety 68117 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
2419b243bd0643c9bbabc61d9f09eea9 cleanup cleanup:goose 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: goose × stepfun-ai/step-3.5-flash 53%](https://codingagentbench.com/badge/goose/stepfun-ai/step-3.5-flash/polyglot/java-null-safety.svg)](https://codingagentbench.com/cell/goose/stepfun-ai/step-3.5-flash/polyglot/java-null-safety)
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CodingAgentBench: goose × stepfun-ai/step-3.5-flash 53%