CtrlK
BlogDocsLog inGet started
Tessl Logo

security-patterns

Security patterns and OWASP guidelines. Triggers on: security review, OWASP, XSS, SQL injection, CSRF, authentication, authorization, secrets management, input validation, secure coding.

91

1.03x
Quality

88%

Does it follow best practices?

Impact

95%

1.03x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Evaluation results

97%

1%

User Profile Management API

SQL injection prevention and resource authorization

Criteria
Without context
With context

Parameterized queries

100%

100%

No f-string SQL

50%

62%

Input type validation

100%

100%

Input length validation

100%

100%

Input format validation

100%

100%

Resource ownership check

100%

100%

Deny by default

100%

100%

No trusted raw headers/params

100%

100%

Allowlist validation

100%

100%

Admin bypass check

100%

100%

Security scan documented

100%

100%

94%

4%

Authentication System for a Web Application

Secure authentication implementation

Criteria
Without context
With context

Bcrypt/argon2/scrypt used

100%

100%

Cost factor 12+

100%

90%

Rate limiting on login

100%

100%

Account lockout

50%

100%

HttpOnly cookie flag

100%

100%

Secure cookie flag

100%

100%

SameSite cookie flag

100%

100%

No hardcoded secrets

70%

50%

Secrets from env vars

100%

100%

Secrets not logged

75%

100%

Session token quality

100%

100%

95%

5%

Community Discussion Board Web Application

Security headers and XSS output encoding

Criteria
Without context
With context

No innerHTML with user data

100%

100%

Safe DOM insertion

80%

80%

URL parameter encoding

100%

62%

Content-Security-Policy header

100%

100%

X-Content-Type-Options header

100%

100%

X-Frame-Options header

100%

100%

HSTS header

0%

100%

Referrer-Policy header

100%

100%

Permissions-Policy header

100%

100%

HTML entity encoding

100%

100%

Headers applied globally

100%

100%

Repository
NeverSight/skills_feed
Evaluated
Agent
Claude Code
Model
Claude Sonnet 4.6

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.