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CodingAgentBench

copilot × stepfun-ai/step-3.5-flash

mutations
mutations/ts-arg-parser-default

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
128.2s
Blast
0.800
Refusal
—
Integrity
1.000
Composite
0.440

Run identity

cell_id
expansion-20260616/copilot/stepfun-ai/step-3.5-flash/mutations/ts-arg-parser-default
sweep_id
expansion-20260616
container_image
codingagentbench/copilot:v1.0.63
image_digest
sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607
model_build_id
stepfun-ai/step-3.5-flash
exit_code
0

Timing

started_at
2026-06-17T01:50:59.217591Z
ended_at
2026-06-17T01:53:07.411992Z
duration
128.19 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":2,"timed_out":false,"stdout_tail":"tsconfig.json(5,25): error TS5107: Option 'moduleResolution=node10' is deprecated and will stop functioning in TypeScript 7.0. Specify compilerOption '\"ignoreDeprecations\": \"6.0\"' to silence this error.\n Visit https://aka.ms/ts6 for migration information.\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":128194.401,"container_active_ms":128181.29400000001,"model_call_ms":0}
blast_radius blast_radius, added, removed, modified, unexpected_changes, expected_changes, total_changes, extra_git_dir {"blast_radius":0.8,"added":["build/src/cli.js","build/tests/cli.test.js","package-lock.json"],"removed":[],"modified":["package.json","src/cli.ts"],"unexpected_changes":["build/src/cli.js","build/tests/cli.test.js","package-lock.json","package.json"],"expected_changes":["src/cli.ts"],"total_changes":5,"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/ts-arg-parser-default"}
composite composite, weights, components, note {"composite":0.440077397521329,"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":0.8,"tokens_per_correct_task":0,"wall_clock_ms":128194.401,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.46718265014219357,"clean_blast":0.19999999999999996,"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 / 128.19 s
span d1e50be51aea436e82802669cea4dcc6task_setupprepare:mutations/ts-arg-parser-default0 ms → 13 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-mutations_ts-arg-parser-default-ktwpecs7/workdir
task_categorymutations
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 stepfun-ai/step-3.5-flash \
    --task mutations/ts-arg-parser-default

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 copilot \
  --model stepfun-ai/step-3.5-flash \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task mutations/ts-arg-parser-default
# 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
d1e50be51aea436e82802669cea4dcc6 task_setup prepare:mutations/ts-arg-parser-default 13 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-mutations_ts-arg-parser-default-ktwpecs7/workdir","task_category":"mutations","plugin_stack":[],"behavior_mode":"factory"}
0ee6524c1455479cb99abf82618cdceb ↳ 173358f6fda7436aa1a8341abb5b276d tool_call applied_plugins 0 ms {"tui":"copilot","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
e4abc2ba41d5433b9a591f0406d2c6c2 ↳ 173358f6fda7436aa1a8341abb5b276d container copilot:launch 128181 ms {"image":"codingagentbench/copilot:v1.0.63","argv":["-p","Default port literal mutated from 8080 to 80; tests fail","--allow-all"],"timeout_s":600,"exit_code":0,"duration_s":128.16466777899768,"timed_out":false}
173358f6fda7436aa1a8341abb5b276d adapter_run copilot:mutations/ts-arg-parser-default 128181 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
abc034dae51e40ae9ced43148e995546 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 × stepfun-ai/step-3.5-flash 44%](https://codingagentbench.com/badge/copilot/stepfun-ai/step-3.5-flash/mutations/ts-arg-parser-default.svg)](https://codingagentbench.com/cell/copilot/stepfun-ai/step-3.5-flash/mutations/ts-arg-parser-default)
HTML / iframe
<a href="https://codingagentbench.com/cell/copilot/stepfun-ai/step-3.5-flash/mutations/ts-arg-parser-default"><img src="https://codingagentbench.com/badge/copilot/stepfun-ai/step-3.5-flash/mutations/ts-arg-parser-default.svg" alt="CodingAgentBench: copilot × stepfun-ai/step-3.5-flash 44%" /></a>
CodingAgentBench: copilot × stepfun-ai/step-3.5-flash 44%