| name | benchmark-summary |
| description | Generate a combined benchmark analysis for the group-sequential-design skill by reading all benchmark GitHub issues, selecting the latest completed run per issue, and producing a structured three-section report (summary table + overall scorecard + failure pattern analysis). Use this skill whenever the user asks to update the benchmark summary, generate the benchmark analysis, summarize skill vs no-skill results, add failure patterns, or produce `benchmark_analysis_YYYY-MM-DD.md`. Always invoke for any request to compare skill performance across issues over time. |
Benchmark Summary Skill
Produce the combined benchmark analysis document for RConsortium/pharma-skills. This involves reading benchmark results that live as comments on GitHub issues, selecting the right run for each, and synthesizing them into a structured report.
Repository: RConsortium/pharma-skills
Output file: benchmark_analysis_YYYY-MM-DD.md in the repo root
GitHub issue: post to RConsortium/pharma-skills after saving locally
Step 1 — Discover all benchmark issues
List every open issue with a [benchmark] title prefix:
gh issue list --repo RConsortium/pharma-skills --limit 100 --json number,title,state \
| jq '[.[] | select(.title | startswith("[benchmark]"))]'
Collect the issue numbers. Also fetch non-prefixed benchmark issues that are known eval cases (e.g. issues identified in prior summaries). When in doubt, fetch the issue and check whether it contains an "Automated Benchmark Results" comment.
Step 2 — Fetch results for each issue
For each issue number, fetch all comments:
gh issue view <N> --repo RConsortium/pharma-skills --comments
Each benchmark result comment contains a Run Metadata table with:
Run date — use this to order runs chronologicallyModel — collapse as described in Step 3- A Scorecard table with With Skill / Without Skill scores
- A Verdict paragraph
Collect all result comments per issue. There may be multiple runs (different models or re-runs).
Step 3 — Select the latest completed run per issue
Apply these rules in order to choose one run per issue:
Exclude a run if any of these apply:
- The scorecard note says "Partial run", "timeout", "rate-limit", "hit limit", or similar
- Both agents produced no output files
- The run was terminated before either agent finished
- The comment explicitly notes the run was superseded by a later one
From the remaining completed runs, pick the most recent by Run date.
Model name normalisation — collapse version suffixes for display:
claude-sonnet-4-6, claude-sonnet-4-7 → Claude Sonnetclaude-opus-4-5, claude-opus-4-7 → Claude Opusclaude-haiku-* → Claude Haikugemini-*-flash* → Gemini Flashgemini-*-pro* → Gemini Pro
Step 4 — Build the three-section document
Follow the exact format below for the output document.
Selection rules
- One row per benchmark issue. Use the latest completed run for each issue — ignore runs marked partial, timeout, rate-limit hit, or where both agents produced no output.
- Do not treat
claude-sonnet-4-7 as a different model from claude-sonnet-4-6; list both simply as "Claude Sonnet". Similarly collapse minor version suffixes (e.g. claude-opus-4-7 → "Claude Opus").
- For each issue, record: run date, model, with-skill score (fraction + %), without-skill score, and a one-sentence verdict.
Section 1 — Benchmark Summary Table
## Benchmark Summary: Latest Completed Run per Issue (Skill vs No Skill)
| Issue | Scenario | Run Date | Model | With Skill | Without Skill | Verdict |
|-------|----------|----------|-------|-----------|--------------|---------|
| #N | <short description> | YYYY-MM-DD | <model> | X% (n/d) | Y% (n/d) | ✅/❌/➕ <one sentence> |
Verdict icons: ✅ = skill wins, ❌ = no-skill wins, ➕ = tie.
For no-skill wins, always add a parenthetical explaining whether it is a skill scope gap (wrong framework applied) or an orchestration/environment bug (not a content failure).
At the bottom of the table, add a note listing any excluded runs and why (partial, timeout, no output).
Section 2 — Overall Scorecard
## Overall Scorecard
| | With Skill | Without Skill |
|--|------------|--------------|
| **Wins** | N | N |
| **Ties** | N | N |
| **Avg score (excl. trivial)** | X% | Y% |
**The N no-skill wins are all structural skill gaps, not base model superiority:**
| Issue | No-skill win reason |
|-------|-------------------|
| #N | <one line> |
**What the benchmarks confirm the skill does well:**
- <bullet per consistent value driver>
Exclude issues with a trivial assertion (e.g. a dry-run with a single sanity-check assertion) from the average score calculation; note which issues were excluded.
Section 3 — Failure Pattern Analysis
For each failure pattern, use this template:
### Pattern N — <Short name>
**Affects:** #N, #N (scenario names)
**Verdict:** <skill wins / no-skill wins / both fail> — <one sentence on what the data shows>
<Two to four sentences describing what went wrong, with specific evidence from the benchmark runs.>
**Root cause:** <One sentence identifying the specific gap in SKILL.md / reference.md / examples.md / post_design.md.>
**Recommended fix:** <Concrete change — which file, what to /, >
P0 / P1 / P2 / P3 —
Priority scale:
- P0 — skill produces scientifically invalid or dangerous output for in-scope inputs
- P1 — skill silently produces incorrect methodology (wrong framework, wrong estimand)
- P2 — skill produces a correct but sub-optimal design, or execution reliability issue
- P3 — gap already partially mitigated by skill; fix prevents residual risk
End the section with a Priority Summary table:
## Priority Summary
| Pattern | Issues affected | Skill wins? | Priority |
|---------|----------------|-------------|----------|
| N. <name> | #N, #N | ✅/❌/Weak | **PN** — <one-line reason> |
Patterns to always check for (add others as evidence warrants):
- Scope gate missing (skill applies GSD to out-of-scope design)
- Competing-risks detection absent
- Post-design timing checks missing
- Prompt bundle size / misrouting
- Verification simulation not enforced
- Load-bearing reference files at risk during refactoring
Step 5 — Save locally and post to GitHub
Save locally:
benchmark_analysis_YYYY-MM-DD.md
in the repo root (C:/Users/zhangp/pharma-skills/pharma-skills/ on this machine). Use today's date.
Post to GitHub (requires user confirmation before posting):
gh issue create \
--repo RConsortium/pharma-skills \
--title "[analysis] Benchmark failure pattern analysis — group-sequential-design skill (YYYY-MM-DD)" \
--body "$(cat benchmark_analysis_YYYY-MM-DD.md)"
Report the issue URL after posting.
Incremental updates
If a prior benchmark_analysis_*.md already exists in the repo root, read it first. For each issue already in the prior summary, only re-fetch and update the row if a newer completed run exists on GitHub since the prior summary date. For new issues not yet in the prior summary, add them. Carry forward failure patterns from the prior summary and update or add new ones based on any new evidence.
This allows the summary to grow incrementally without re-reading every issue from scratch each time.
