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Security audit

X/Twitter Prospecting

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed X prospecting helper that uses Brave Search and local scoring/content generation, with no evidence of hidden posting, persistence, or data theft.

Install this only if you are comfortable providing a Brave Search API key and sending your X search keywords to Brave. Review generated outreach before using it and ensure it complies with X rules, privacy expectations, and anti-spam requirements.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (4)

Tp4

High
Category
MCP Tool Poisoning
Confidence
95% confidence
Finding

The manifest describes the skill primarily as searching X via Brave, but the documented commands also perform prospect scoring, thread generation, and multi-step DM outreach. This mismatch can mislead reviewers and users about the true operational scope, causing them to grant trust or permissions under incomplete assumptions and enabling broader data handling or automated persuasion workflows than expected.

Content

No source excerpt is available for this finding.

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
88% confidence
Finding

The skill requires an environment secret (BRAVE_API_KEY) but does not declare an explicit tool scope such as permissions or allowed-tools. That weakens transparency and enforcement around what the skill is allowed to access, increasing the risk of secret use outside clearly declared boundaries if the runtime relies on manifest scoping.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 38)May include surrounding context.

bash
curl -s -H "Accept: application/json" \
     -H "X-Subscription-Token: $BRAVE_API_KEY" \
     "https://api.search.brave.com/res/v1/web/search?q=site:x.com+%22looking+for+AI+tools%22&count=10"

Substitute the query with your target keywords. Parse results to extract handles and tweet text, then run through lead scoring.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
80% confidence
Finding

This code performs an outbound HTTPS request using the supplied search keyword to a third-party service. Although the file header mentions use of Brave Search, there is no user-facing disclosure in the CLI flow or at the call site that the entered keyword will be sent externally.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.