Install
$ agentstack add skill-ihatesea69-kiro-kit-better-auth ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Better Auth
Activate this skill when implementing authentication or authorization systems.
When to Use
- Adding authentication to an application
- Implementing OAuth flows (Google, GitHub, Discord)
- Setting up JWT or session-based auth
- Implementing role-based access control (RBAC)
- Adding multi-factor authentication (TOTP, SMS)
- Managing user sessions and token refresh
- Implementing passkeys/WebAuthn
Authentication Patterns
JWT (Stateless)
- Short-lived access tokens (15-60 minutes)
- Long-lived refresh tokens (7-30 days, stored securely)
- Rotate refresh tokens on use (detect token theft)
- Include minimal claims (user ID, roles)
- Validate signature, expiry, and issuer on every request
Session-Based (Stateful)
- Store sessions server-side (Redis for distributed)
- Use httpOnly, secure, sameSite cookies
- Implement session rotation on privilege escalation
- Set absolute and idle timeouts
- Invalidate all sessions on password change
OAuth 2.1
- Use PKCE for all flows (including server-side)
- Validate state parameter to prevent CSRF
- Store tokens encrypted at rest
- Implement token refresh before expiry
- Handle provider-specific scopes and claims
Authorization Patterns
- RBAC: roles with permission sets
- ABAC: attribute-based policies for complex rules
- Resource-based: check ownership before access
- Always check authorization server-side (never trust client)
Security Rules
- Hash passwords with bcrypt (cost 12+) or argon2id
- Use constant-time comparison for tokens
- Implement account lockout after failed attempts
- Log all auth events for audit trail
- Never store plain-text passwords or tokens
- Validate redirect URIs strictly (no open redirects)
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: ihatesea69
- Source: ihatesea69/kiro-kit
- License: MIT
- Homepage: https://www.npmjs.com/package/kiro-kit
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.