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Get Started Free →Optimize any form that is NOT signup or account registration — including lead capture, contact, demo request, application, survey, quote, and checkout forms.
.claude/skills/sickn33-form-cro/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | 44% | 0% |
| case-02 | ✗→✓ | ▲ Improved | 61% | 0% |
| case-03 | ✗→✓ | ▲ Improved | 8% | 0% |
| case-04 | ✗→✓ | ▲ Improved | 104% | 0% |
| case-06 | ✗→✓ | ▲ Improved | 103% | 0% |
You are an expert in form optimization and friction reduction. Your goal is to maximize form completion while preserving data usefulness.
You do not blindly reduce fields. You do not optimize forms in isolation from their business purpose. You do not assume more data equals better leads.
Before giving recommendations, calculate the Form Health & Friction Index.
This index answers:
> Is this form structurally capable of converting well?
It prevents:
This is a diagnostic score, not a KPI.
| Category | Weight | | ---------------------------- | ------- | | Field Necessity & Efficiency | 30 | | Value–Effort Balance | 20 | | Cognitive Load & Clarity | 20 | | Error Handling & Recovery | 15 | | Trust & Friction Reduction | 10 | | Mobile Usability | 5 | | Total | 100 |
| Score | Verdict | Interpretation | | ------ | ------------------------ | -------------------------------- | | 85–100 | High-Performing | Optimize incrementally | | 70–84 | Usable with Friction | Clear optimization opportunities | | 55–69 | Conversion-Limited | Structural issues present | | <55 | Broken | Redesign before testing |
If verdict is Broken, stop and recommend structural fixes first.
Each required field reduces completion.
Rule of thumb:
Fields must earn their place.
If a field is:
→ it is friction, not value.
People abandon forms more from thinking than typing.
Bad: “Invalid input” Good: “Please enter a valid email (name@company.com)”
Avoid: Submit, Send Prefer: Action + Outcome
Examples:
For each issue:
Clearly stated A/B test ideas with expected outcome
Do not test:
This skill is applicable to execute the workflow or actions described in the overview.
User request:
> Optimize any form that is NOT signup or account registration — including lead capture, contact, demo request, application, survey, quote, and checkout forms.
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-09 | pass→pass | 10,717 | 13,907 | +30% | 1 | 1 | 0% | 1,709 | 3,902 | +128% | 0 | 0 | — |
case-01 | fail→pass | 22,158 | 19,376 | -13% | 1 | 1 | 0% | 3,599 | 5,170 | +44% | 0 | 0 | — |
case-02 | fail→pass | 23,638 | 26,256 | +11% | 1 | 1 | 0% | 3,544 | 5,700 | +61% | 0 | 0 | — |
case-03 | fail→pass | 42,068 | 21,069 | -50% | 1 | 1 | 0% | 4,830 | 5,205 | +8% | 0 | 0 | — |
case-04 | fail→pass | 15,385 | 16,018 | +4% | 1 | 1 | 0% | 2,236 | 4,565 | +104% | 0 | 0 | — |
case-05 | pass→pass | 13,843 | 13,673 | -1% | 1 | 1 | 0% | 2,098 | 4,015 | +91% | 0 | 0 | — |
case-06 | fail→pass | 16,528 | 18,616 | +13% | 1 | 1 | 0% | 2,351 | 4,774 | +103% | 0 | 0 | — |
case-07 | fail→pass | 11,950 | 13,609 | +14% | 1 | 1 | 0% | 1,897 | 3,824 | +102% | 0 | 0 | — |
case-08 | pass→pass | 12,723 | 11,770 | -7% | 1 | 1 | 0% | 1,858 | 3,741 | +101% | 0 | 0 | — |
case-10 | pass→pass | 13,707 | 13,489 | -2% | 1 | 1 | 0% | 1,946 | 3,986 | +105% | 0 | 0 | — |
case-11 | pass→pass | 13,760 | 18,410 | +34% | 1 | 1 | 0% | 2,055 | 4,663 | +127% | 0 | 0 | — |
case-12 | pass→pass | 16,197 | 19,121 | +18% | 1 | 1 | 0% | 2,583 | 5,000 | +94% | 0 | 0 | — |
case-13 | fail→pass | 10,163 | 5,979 | -41% | 1 | 1 | 0% | 1,528 | 2,910 | +90% | 0 | 0 | — |
case-14 | pass→pass | 14,833 | 18,220 | +23% | 1 | 1 | 0% | 2,267 | 4,553 | +101% | 0 | 0 | — |
case-19 | fail→pass | 11,323 | 6,352 | -44% | 1 | 1 | 0% | 1,613 | 2,902 | +80% | 0 | 0 | — |
case-15 | pass→pass | 9,806 | 12,227 | +25% | 1 | 1 | 0% | 1,658 | 3,722 | +124% | 0 | 0 | — |
case-16 | pass→pass | 12,253 | 10,230 | -17% | 1 | 1 | 0% | 1,843 | 3,411 | +85% | 0 | 0 | — |
case-17 | pass→pass | 13,821 | 18,329 | +33% | 1 | 1 | 0% | 2,196 | 4,764 | +117% | 0 | 0 | — |
case-18 | fail→fail | 10,557 | 2,365 | -78% | 1 | 1 | 0% | 1,548 | 2,241 | +45% | 0 | 0 | — |
case-20 | pass→pass | 12,781 | 7,051 | -45% | 1 | 1 | 0% | 1,855 | 2,923 | +58% | 0 | 0 | — |
case-21 | pass→pass | 14,258 | 15,951 | +12% | 1 | 1 | 0% | 2,194 | 4,371 | +99% | 0 | 0 | — |
case-22 | pass→pass | 24,384 | 20,041 | -18% | 1 | 1 | 0% | 3,840 | 5,029 | +31% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +36 percentage points is the difference between those two pass rates over the 22 comparable cases.
The publisher has shipped newer versions since this run, so these numbers describe v1, not the version currently listed.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.