Security audit
png-lsb-skills
Security checks for vulnerabilities and agentic risk
Overview
This skill locally analyzes user-selected PNG files for structure, metadata, CRC validity, and LSB steganography with no evidence of hidden access or persistence.
Reasonable to install if you need PNG forensics or LSB steganography checks. Run it only on images you intentionally choose, be deliberate with the optional output path because it writes a JSON file there, and treat results from untrusted or very large images with normal caution for image parsers.
Vulnerability Patterns
- Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
- Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
- Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
- Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
- Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Static analysis
No suspicious patterns detected.