Doppler

• Outcome: Review
• Latest audit: Nov 4, 2026 · 5:55 AM UTC
• Version: 1.0.6

Overview

The Doppler workflow has clear safeguards, but setup executes unverified downloads and the required CLI can silently install other agent skills.

Review and approve a fixed CLI release before installation. Its documented startup skill synchronization can be disabled with OO_SKILLS_SYNC_DISABLED=1 before use. Connect a narrowly scoped Doppler key and handle returned secrets carefully. The remote installers and server-side implementation were not verified.

A.I.G

Vulnerability Patterns

• Skill Instruction Hijacking: Alters the agent's session goals or safety constraints when the skill loads
• Agent Memory Poisoning: Writes attacker-controlled rules into memory that affect later sessions
• Remote Payload Retrieval and Execution: Fetches external code whose behavior can change after review
• Embedded Malicious Code: Ships malicious scripts inside the skill and executes them locally
• Unauthorized Access and Privilege Escalation: Obtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns

• Supply Chain: Unpinned Dependencies, External Script Fetching, Obfuscated Code
• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep
• MCP Tool Poisoning: Hidden Instructions, Unicode Deception, Parameter Description Injection
• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands
• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration

Findings (3)

Description-Behavior Mismatch

High

• Category: MCP Tool Poisoning
• Confidence: 99% confidence

Finding

The supplied command installs software from Oomol and contains no Doppler operations or demonstrated connection to Doppler functionality. Based on the supplied code, this is a materially different activity, not an established supporting implementation detail. The remote script's contents and further effects are not shown.

Content

No source excerpt is available for this finding.

External Script Fetching

High

• Category: Supply Chain
• Confidence: 98% confidence

Finding

The fallback setup instructs the agent to download a mutable remote script and immediately execute it without integrity verification; the PowerShell alternative has the same issue. Compromise of the distribution endpoint could execute arbitrary code with the agent's privileges, potentially exposing local credentials or Doppler secrets accessible from that environment. Its restriction to missing-CLI errors reduces exposure frequency but does not remove the supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 98)May include surrounding context.

• oo: command not found — install the oo CLI (other platforms: https://cli.oomol.com/install-guide.md):

  bash

  curl -fsSL https://cli.oomol.com/install.sh | bash    # macOS / Linux
  

  powershell

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 119)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