Loading skill
Install any skill in seconds. Free to start, no credit card required.
Get Started Free →This skill should be used when the user asks to "test for broken authentication vulnerabilities", "assess session management security", "perform credential stuffing tests", "evaluate password policies", "test for session fixation", or "identify authentication bypass flaws". It provides comprehensive techniques for identifying authentication and session management weaknesses in web applications.
.claude/skills/dokhacgiakhoa-broken-authentication-testing/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-03 | ✓→✗ | ▼ Worse | 16% | 0% |
| case-02 | ✓→✓ | ＝ Same ✓ | 15% | 0% |
| case-04 | ✓→✓ | ＝ Same ✓ | 58% | 0% |
| case-05 | ✓→✓ | ＝ Same ✓ | 34% | 0% |
| case-06 | ✓→✓ | ＝ Same ✓ | 36% | 0% |
Identify and exploit authentication and session management vulnerabilities in web applications. Broken authentication consistently ranks in the OWASP Top 10 and can lead to account takeover, identity theft, and unauthorized access to sensitive systems. This skill covers testing methodologies for password policies, session handling, multi-factor authentication, and credential management.
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 34,151 | 46,277 | +36% | 1 | 1 | 0% | 6,428 | 5,547 | -14% | 0 | 0 | — |
case-02 | pass→pass | 8,526 | 6,718 | -21% | 1 | 1 | 0% | 1,691 | 1,937 | +15% | 0 | 0 | — |
case-03 | pass→fail | 11,211 | 16,868 | +50% | 1 | 1 | 0% | 2,056 | 2,381 | +16% | 0 | 0 | — |
case-04 | pass→pass | 7,350 | 10,109 | +38% | 1 | 1 | 0% | 1,330 | 2,100 | +58% | 0 | 0 | — |
case-05 | pass→pass | 14,655 | 18,512 | +26% | 1 | 1 | 0% | 1,840 | 2,461 | +34% | 0 | 0 | — |
case-06 | pass→pass | 5,797 | 4,235 | -27% | 1 | 1 | 0% | 937 | 1,270 | +36% | 0 | 0 | — |
case-07 | pass→pass | 10,686 | 8,654 | -19% | 1 | 1 | 0% | 1,655 | 2,203 | +33% | 0 | 0 | — |
case-08 | pass→pass | 7,218 | 4,361 | -40% | 1 | 1 | 0% | 1,114 | 1,475 | +32% | 0 | 0 | — |
case-09 | pass→pass | 6,505 | 3,255 | -50% | 1 | 1 | 0% | 1,191 | 1,290 | +8% | 0 | 0 | — |
case-10 | pass→pass | 10,303 | 10,926 | +6% | 1 | 1 | 0% | 1,885 | 2,719 | +44% | 0 | 0 | — |
case-11 | pass→pass | 17,954 | 12,519 | -30% | 1 | 1 | 0% | 2,938 | 2,863 | -3% | 0 | 0 | — |
case-12 | pass→pass | 18,949 | 22,195 | +17% | 1 | 1 | 0% | 3,202 | 2,397 | -25% | 0 | 0 | — |
case-13 | pass→pass | 13,992 | 9,583 | -32% | 1 | 1 | 0% | 2,326 | 2,370 | +2% | 0 | 0 | — |
case-14 | pass→pass | 10,092 | 10,263 | +2% | 1 | 1 | 0% | 1,768 | 2,321 | +31% | 0 | 0 | — |
case-15 | pass→pass | 14,998 | 14,660 | -2% | 1 | 1 | 0% | 2,724 | 3,181 | +17% | 0 | 0 | — |
case-16 | pass→pass | 7,703 | 12,963 | +68% | 1 | 1 | 0% | 1,296 | 1,570 | +21% | 0 | 0 | — |
case-17 | pass→pass | 9,585 | 5,080 | -47% | 1 | 1 | 0% | 1,466 | 1,310 | -11% | 0 | 0 | — |
case-18 | pass→pass | 3,538 | 3,761 | +6% | 1 | 1 | 0% | 501 | 1,308 | +161% | 0 | 0 | — |
case-19 | pass→pass | 8,716 | 13,030 | +49% | 1 | 1 | 0% | 1,432 | 2,456 | +72% | 0 | 0 | — |
case-20 | pass→pass | 16,328 | 18,345 | +12% | 1 | 1 | 0% | 2,842 | 3,776 | +33% | 0 | 0 | — |
case-21 | pass→pass | 18,471 | 19,792 | +7% | 1 | 1 | 0% | 2,908 | 4,294 | +48% | 0 | 0 | — |
case-22 | pass→pass | 14,471 | 15,306 | +6% | 1 | 1 | 0% | 2,553 | 3,229 | +26% | 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 -100 percentage points is the difference between those two pass rates over the 22 comparable cases. 1 case got worse with the skill loaded, and it is included in that figure.
Other measured skills in the registry, with their headline benchmark lift.