Security audit

Workouts

Security checks for vulnerabilities and agentic risk

Overview

This workout-tracking skill is a simple local-file workflow that fits its stated purpose and does not show hidden or unsafe behavior.

Before installing, be comfortable with the agent creating a ~/workouts/ folder and storing workout, recovery, injury, and optional health-related notes there. Avoid recording sensitive medical details unless you are comfortable keeping them in local Markdown files.

A.I.G

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

SkillSpector

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

Findings (1)

Missing User Warnings

Low

Category: Not specified by scanner
Confidence: 93% confidence
Finding: The skill explicitly instructs the agent to create ~/workouts/ on the user's filesystem without any disclosure, confirmation, or mention of write behavior. While the action is low risk and aligned with the skill's purpose, silent filesystem modification can surprise users and establishes a pattern of performing persistent side effects without consent.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.