Liad YosefandClaude
fe963cae99
Scoped, optional reference to Modern Web Guidance so the agent can look up native platform features on web work, filling the gap at rung 3 of the ladder. Three additive changes, no compact-ruleset surgery: - skills/ponytail/SKILL.md: "Web tasks: rung 3 lookup" section after the ladder. Runtime source only, not byte-compared, so no six-file sync. - README.md: one "Pairs well with" line, matching the Caveman pattern. - examples/web-platform-lookup.md: a <dialog closedby> vs Radix before/after in the date-picker.md style. Lookup, not license: MWG suggests, the ladder filters. Absent CLI changes nothing. No new INVARIANT phrase; rule-copy check stays green. Co-authored-by: Claude <noreply@anthropic.com>
Examples
Real model output, verbatim from benchmark runs — the same task answered by the same model
with no skill (## Without Ponytail) and with ponytail (## With Ponytail), so you can
compare side by side. Model: Claude Haiku 4.5, temperature 1, source benchmarks/output.json.
These are not hand-written. Reproduce them yourself:
npx promptfoo@latest eval -c benchmarks/promptfooconfig.yaml. Method, all three models, and
median-of-10 numbers: ../benchmarks/.
| Example | Without (LOC) | With (LOC) |
|---|---|---|
| Email Validation | 75 | 3 |
| Debounce | 116 | 10 |
| CSV Sum | 20 | 3 |
| Countdown Timer | 267 | 9 |
| Rate Limiting | 128 | 10 |