Security audit
Writing Assistant
Security checks for vulnerabilities and agentic risk
Overview
This is a disclosed writing-assistant skill that stores local writing preferences and drafts content, with no evidence of hidden execution, exfiltration, or destructive behavior.
Before installing, review the AGENTS.md and HEARTBEAT.md snippets because they create persistent writing behavior. Keep writing-state.md and drafts out of public repositories, and continue reviewing all generated emails, posts, and drafts before sending or publishing.
Vulnerability Patterns
- Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
- Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
- Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
- Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
- Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
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.