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Security audit

landing-page-copywriter

Security checks for vulnerabilities and agentic risk

Overview

The bundled workflow creates local drafts without hidden access, but its script does not deliver the promised complete outline.

Expect substantial manual completion: the supplied brief does not match the script's keyword input, and generated output does not establish disclosure compliance. Use a dedicated output folder because outline.md is overwritten. The optional Windows app is unnecessary for the Python workflow and needs a separate security assessment; a matching hash alone does not establish safety.

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
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • 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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

The code supports keyword-based outline generation, but its output materially omits the landing-page structure and disclosure coverage central to the description. It produces a generic keyword content outline instead. Local input reads and output writes are supporting implementation details, and the supplied code shows no unrelated resource access or hidden capabilities.

Content

No source excerpt is available for this finding.

Skill declares no tool scope ('permissions' or 'allowed-tools') but code capabilities were detected: file_write.

Medium
Category
MCP Least Privilege
Confidence
70% confidence
Finding

Without declared permissions the skill's intent is opaque and cannot be validated.

Content

No source excerpt is available for this finding.

The generated outline lacks the landing-page structure and disclosures promised by the manifest.

Medium
Category
Excessive Agency
Confidence
98% confidence
Finding

The manifest promises hero, proof, offer, objection, FAQ, and required disclosure sections. L078–L084 instead generate one generic section per keyword with query-answering instructions, while L085–L087 append internal copywriting guardrails rather than page disclosures.

Content

No source excerpt is available for this finding.

The generated outline requires US-specific content without user opt-in or a documented regional justification.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

Every keyword section is instructed to include a US-specific detail, imposing a regional constraint regardless of the user's target audience. The file neither offers a locale choice nor explains why this general landing-page copywriting tool requires US localization.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.