auth0-mfa
Use when adding multi-factor authentication (MFA/2FA) or requiring additional verification for sensitive operations - covers step-up auth, adaptive MFA, and risk-based authentication with Auth0
82
Does it follow best practices?
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npx tessl skill review --optimize ./path/to/skillEvaluation — 98%
↑ 1.42xAgent success when using this skill
Validation for skill structure
Evaluation results
100%
20%Protect Sensitive User Actions with Step-Up Authentication in React
React step-up auth hook
Correct acr_values URL
0%
100%
AMR claim check
100%
100%
max_age: 0 used
100%
100%
Silent step-up first
100%
100%
cacheMode off
100%
100%
Fallback to loginWithRedirect
100%
100%
Returns false on redirect
100%
100%
Auth0 React package
100%
100%
Verification state tracking
0%
100%
Reusable hook structure
100%
100%
Without context: $0.2793 · 1m 37s · 15 turns · 18 in / 5,458 out tokens
With context: $0.4779 · 1m 30s · 22 turns · 2,201 in / 4,896 out tokens
100%
45%Build a Secure Transaction API with MFA Enforcement
Node.js backend MFA validation
express-jwt package
0%
100%
jwks-rsa integration
0%
100%
RS256 algorithm
0%
100%
JWKS URI pattern
50%
100%
AUTH0_AUDIENCE env var
100%
100%
Backend amr claim check
100%
100%
403 mfa_required response
50%
100%
Middleware separation
100%
100%
Threshold-based MFA
100%
100%
Backend-only enforcement
100%
100%
jwks cache/rateLimit
0%
100%
Without context: $0.4867 · 2m 1s · 24 turns · 29 in / 7,324 out tokens
With context: $0.7068 · 2m 24s · 33 turns · 2,212 in / 7,818 out tokens
94%
22%Implement Risk-Based MFA with Auth0 Actions
Adaptive MFA Auth0 Action
api.multifactor.enable usage
100%
100%
MFA already-completed check
0%
50%
Admin role risk signal
100%
100%
Geolocation risk signal
100%
100%
allowRememberBrowser: false for admins
100%
100%
allowRememberBrowser: true for lower-risk
100%
100%
Post-login trigger
100%
100%
Correct event.authentication path
0%
100%
Deploy instructions
100%
100%
No unnecessary early exits
50%
100%
Without context: $0.3305 · 1m 28s · 18 turns · 25 in / 4,685 out tokens
With context: $0.4537 · 1m 33s · 23 turns · 2,203 in / 4,481 out tokens
- Evaluated
- Agent
- Claude Code
- Model
- Unknown
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