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Security audit

Jamie

Security checks for vulnerabilities and agentic risk

Overview

The Jamie features fit their purpose, but setup runs unverified remote code and the dependency can silently install skills into other agents.

Review the dependency installation before enabling this skill. Prefer a fixed, verified CLI release and disable startup skill synchronization with OO_SKILLS_SYNC_DISABLED=1 unless you want changes across your agents. Connect only the Jamie account you intend to query and consider OOMOL's access to private meeting content. The installer payloads remain unverified; the evidence supports review, not a finding of malicious intent.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (3)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied chunk performs a remote installer execution rather than searching or reading Jamie data. Nothing in the chunk establishes that installing the Oomol CLI supports Jamie functionality. The downloaded script's contents and resulting system changes are not visible, so its specific downstream behavior cannot be determined.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
97% confidence
Finding

The setup command pipes an unpinned remote script directly into Bash without verifying its integrity or reviewing its contents; the PowerShell alternative has the same weakness. A compromised distribution endpoint could execute arbitrary code with the invoking user's privileges, potentially accessing local credentials and files. The legitimate dependency and missing-command condition limit exposure but do not make the downloaded code trustworthy.

Content

Scanner excerpt · SKILL.md (reported line 59)May include surrounding context.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 80)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources