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SkillsBench Trajectories — April 2026

Benchmark trajectories for Claude Code on SkillsBench.

Models

  • Claude Opus 4.7 (claude-opus-4-7)
  • Claude Sonnet 4.6 (claude-sonnet-4-6)

Conditions

  • opus47-with-skills-t1 — Opus 4.7 with skills, trial 1
  • opus47-without-skills-t1 — Opus 4.7 without skills, trial 1
  • sonnet46-with-skills-t1 — Sonnet 4.6 with skills, trial 1
  • sonnet46-without-skills-t1 — Sonnet 4.6 without skills, trial 1

Auth

Claude Code OAuth subscription (Max 20x tier)

Environment

Daytona cloud sandboxes

Trial 1 Results (in progress)

Condition Passed Failed Errored Raw Score
Opus 4.7 +skills 35 34 13 42.7%
Opus 4.7 -skills 23 45 14 28.0%
Sonnet 4.6 +skills TBD
Sonnet 4.6 -skills TBD

Structure

jobs/
  <condition>-t<trial>/
    <job_timestamp>/
      <task_name>__<hash>/
        result.json        # rewards, errors, timing
        config.json        # run configuration
        trajectory/
          acp_trajectory.jsonl  # full agent trace
        agent/
          claude_agent_acp.txt  # agent log
        verifier/
          reward.txt        # final score
          ctrf.json         # test results
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