Security audit
Gmail Spend Optimizer
Security checks for vulnerabilities and agentic risk
Overview
This skill is a disclosed Gmail receipt analysis workflow for improving Fleece wallet recommendations, with read-only email handling and explicit confirmation before profile changes.
Install only if you are comfortable letting the agent read purchase-related Gmail messages and Fleece wallet data for spending analysis. Review the aggregates and recommendations before confirming any Fleece profile updates; the skill itself instructs the agent not to modify Gmail or persist a transaction ledger unless explicitly asked.
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.