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Get Started Free →Expert integration of Supabase Auth with Next.js App Router Use when: supabase auth next, authentication next.js, login supabase, auth middleware, protected route.
.claude/skills/dokhacgiakhoa-nextjs-supabase-auth/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-19 | ✗→✓ | ▲ Improved | -17% | 0% |
| case-01 | ✓→✓ | ＝ Same ✓ | -17% | 0% |
| case-02 | ✓→✓ | ＝ Same ✓ | -18% | 0% |
| case-03 | ✓→✓ | ＝ Same ✓ | -12% | 0% |
| case-04 | ✓→✓ | ＝ Same ✓ | 8% | 0% |
You are an expert in integrating Supabase Auth with Next.js App Router. You understand the server/client boundary, how to handle auth in middleware, Server Components, Client Components, and Server Actions.
Your core principles:
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | pass→pass | 6,130 | 3,083 | -50% | 1 | 1 | 0% | 1,023 | 845 | -17% | 0 | 0 | — |
case-02 | pass→pass | 9,735 | 6,767 | -30% | 1 | 1 | 0% | 1,946 | 1,600 | -18% | 0 | 0 | — |
case-03 | pass→pass | 10,266 | 7,357 | -28% | 1 | 1 | 0% | 1,940 | 1,698 | -12% | 0 | 0 | — |
case-04 | pass→pass | 11,536 | 10,189 | -12% | 1 | 1 | 0% | 2,146 | 2,307 | +8% | 0 | 0 | — |
case-05 | pass→pass | 14,992 | 11,652 | -22% | 1 | 1 | 0% | 2,604 | 2,638 | +1% | 0 | 0 | — |
case-06 | pass→pass | 19,668 | 21,655 | +10% | 1 | 1 | 0% | 3,142 | 3,242 | +3% | 0 | 0 | — |
case-07 | pass→pass | 13,021 | 12,302 | -6% | 1 | 1 | 0% | 2,625 | 2,900 | +10% | 0 | 0 | — |
case-08 | pass→pass | 12,193 | 11,417 | -6% | 1 | 1 | 0% | 2,139 | 2,386 | +12% | 0 | 0 | — |
case-09 | pass→pass | 11,016 | 8,979 | -18% | 1 | 1 | 0% | 1,991 | 1,954 | -2% | 0 | 0 | — |
case-10 | pass→pass | 2,944 | 3,070 | +4% | 1 | 1 | 0% | 531 | 915 | +72% | 0 | 0 | — |
case-11 | pass→pass | 13,920 | 10,958 | -21% | 1 | 1 | 0% | 2,562 | 2,628 | +3% | 0 | 0 | — |
case-12 | pass→pass | 11,479 | 8,929 | -22% | 1 | 1 | 0% | 1,868 | 1,981 | +6% | 0 | 0 | — |
case-13 | pass→pass | 13,117 | 7,638 | -42% | 1 | 1 | 0% | 2,693 | 1,839 | -32% | 0 | 0 | — |
case-14 | pass→pass | 17,997 | 14,866 | -17% | 1 | 1 | 0% | 3,263 | 3,243 | -1% | 0 | 0 | — |
case-15 | pass→pass | 12,376 | 11,579 | -6% | 1 | 1 | 0% | 2,173 | 2,376 | +9% | 0 | 0 | — |
case-16 | pass→pass | 8,751 | 5,578 | -36% | 1 | 1 | 0% | 1,646 | 1,347 | -18% | 0 | 0 | — |
case-17 | pass→pass | 16,142 | 14,646 | -9% | 1 | 1 | 0% | 3,267 | 3,300 | +1% | 0 | 0 | — |
case-18 | pass→pass | 8,702 | 6,276 | -28% | 1 | 1 | 0% | 1,591 | 1,569 | -1% | 0 | 0 | — |
case-19 | fail→pass | 13,918 | 9,554 | -31% | 1 | 1 | 0% | 2,690 | 2,227 | -17% | 0 | 0 | — |
case-20 | pass→pass | 11,898 | 9,046 | -24% | 1 | 1 | 0% | 2,336 | 2,092 | -10% | 0 | 0 | — |
case-21 | pass→pass | 11,782 | 14,176 | +20% | 1 | 1 | 0% | 2,282 | 2,625 | +15% | 0 | 0 | — |
case-22 | pass→pass | 15,057 | 24,446 | +62% | 1 | 1 | 0% | 3,180 | 2,954 | -7% | 0 | 0 | — |
case-23 | pass→pass | 10,373 | 7,884 | -24% | 1 | 1 | 0% | 2,079 | 1,928 | -7% | 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. 23 cases were attempted. The headline lift of +4 percentage points is the difference between those two pass rates over the 23 comparable cases.
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.