General
PromptBeginner5 minmarkdown
- Never trust any input regardless of source
including internal services
0
Explore
Find agent skills by outcome
79,858 skills indexed with the new KISS metadata standard.
Showing 24 of 79,858Categories: Writing & Content, Coding & Debugging, General, Cursor-rules
General
PromptBeginner5 minmarkdown
- Use established validation libraries (Zod
Joi
0
General
PromptBeginner5 minmarkdown
- [ ] File uploads validated for type (magic bytes)
size limits
0
General
PromptBeginner5 minmarkdown
- [ ] Validation is implemented at all layers (client
server
0
General
PromptBeginner5 minmarkdown
- Unit tests cover every validation rule with valid
invalid
0
General
PromptBeginner5 minmarkdown
After completing the validation implementation
verify:
0
General
PromptBeginner5 minmarkdown
- No system internals
stack traces
0
General
PromptBeginner5 minmarkdown
- Enum values validated against an explicit allowlist
not a blocklist
0
General
PromptBeginner5 minmarkdown
- Implement temporal validation (expired tokens
past dates
0
General
PromptBeginner5 minmarkdown
- Check for malicious patterns: excessively nested JSON
zip bombs
0
General
PromptBeginner5 minmarkdown
- Implement file upload validation with magic byte verification
not just MIME type or extension
0
Writing & Content
PromptBeginner5 minmarkdown
- Validate request origins
content types
0
General
PromptBeginner5 minmarkdown
- Sanitize file names to remove path traversal sequences (../
%2e%2e/) and special characters
0
General
PromptBeginner5 minmarkdown
- Validate complex structures (JSON
XML
0
General
PromptBeginner5 minmarkdown
- Verify edge cases: empty strings
nulls
0
Coding & Debugging
PromptBeginner5 minmarkdown
- Encode output based on context (HTML encoding
URL encoding
0
General
PromptBeginner5 minmarkdown
- Validate and sanitize file uploads for type (magic bytes
not just extension)
0
General
PromptBeginner5 minmarkdown
- **Schema validation**: JSON Schema
Zod
0
General
PromptBeginner5 minmarkdown
- Normalize whitespace
trim leading/trailing spaces
0
General
PromptBeginner5 minmarkdown
- Assess security threat model (injection vectors
abuse scenarios
0
General
PromptBeginner5 minmarkdown
- Map validation rules to the appropriate layer (client
server
0
General
PromptBeginner5 minmarkdown
- **Optimize validation performance** using fail-fast ordering
caching for expensive checks
0
Coding & Debugging
PromptBeginner5 minmarkdown
- Identify all data entry points (forms
APIs
0
Coding & Debugging
PromptBeginner5 minmarkdown
- **Prevent injection attacks** through SQL parameterization
XSS escaping
0