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Security audit

No Cap

Security checks across malware telemetry and agentic risk

Overview

The skill has a coherent bookmark-digest purpose, but it needs Review because it asks the agent to extract and persist raw X session cookies and run unpackaged local CLI code.

Install only if you are comfortable giving the workflow access to your X session cookies and storing them locally. Review the CLI source at repoPath before running setup, use a dedicated or lower-risk X account where possible, keep ~/.no-cap/config.json private, avoid pasting cookies into shared chats or logs, rotate cookies/API keys if exposed, and enable email only if you are comfortable sending digest content through Resend.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • 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 (3)

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The skill explicitly instructs collection of highly sensitive X session cookies (`auth_token`, `ct0`) and a Resend API key, then stores them in a local config file. Although it mentions chmod 600, it does not give a clear user-facing warning about the risks of handing session tokens to an agent or the consequences of local persistence, including account takeover, mailbox abuse, and exposure through logs, prompts, or other tools.

Ssd 3

Medium
Confidence
87% confidence
Finding
The skill directs the agent to persist detailed user interests and active projects in config for future routing. That creates long-lived profiling data about the user's work, priorities, and possibly confidential initiatives, which can later be read by the agent or other local processes and may exceed what is necessary for bookmark processing.

Ssd 3

Medium
Confidence
91% confidence
Finding
The MASTER.md design is effectively an agent memory store containing durable summaries, project mappings, action items, and enough detail for future action without rereading sources. This expands the sensitivity of local data by concentrating user workflow intelligence and potentially confidential project context into a single long-lived file, increasing privacy and data leakage risk.

VirusTotal

65/65 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.