Symphony Harness Rubric

Symphony Harness Rubric

Assess a repository with a weighted Harness Engineering scorecard and produce:

1. Quantified scores per control
2. Maturity band
3. Symphony readiness threshold classification
4. Prioritized retrofit recommendations

This skill is based on:

• https://openai.com/index/harness-engineering/

Output requirements

• MUST write a Markdown report file in the user's current working directory.
• Default output filename:
  • HARNESS_ENGINEERING_EVALUATION.md
• Report MUST explicitly state:
  • "Rubric derived from https://openai.com/index/harness-engineering/."

Run

From the user's current repository root (or target path):

python ~/.claude/skills/symphony-harness-rubric/scripts/evaluate_harness_rubric.py \
  --repo-root . \
  --output ./HARNESS_ENGINEERING_EVALUATION.md

If Python launcher is needed on Windows:

python "$env:USERPROFILE\.claude\skills\symphony-harness-rubric\scripts\evaluate_harness_rubric.py" `
  --repo-root . `
  --output .\HARNESS_ENGINEERING_EVALUATION.md

Assistant response after running

After writing the report:

1. Tell the user the output file path.
2. Provide a short summary:
   • Total score
   • Maturity band
   • Symphony readiness tier
   • Top 3 retrofit priorities

Notes

• The article is descriptive, not a formal compliance standard.
• The evaluator uses evidence-based heuristics over repository files.
• Always communicate that results are "best-effort inference" and should be reviewed by maintainers.