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Security audit

human-writing

Security checks for vulnerabilities and agentic risk

Overview

This is a text-only writing guidance skill with no hidden runtime access, persistence, credential use, or destructive behavior found.

Install this only if you want your agent to apply opinionated writing-style guidance to drafts. Review outputs before publishing, especially because the skill encourages preserving rough phrasing and may intentionally avoid smoothing text.

SkillSpector

Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • 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)

Lp3

Medium
Category
MCP Least Privilege
Confidence
70% confidence
Finding
Without declared permissions the skill's intent is opaque and cannot be validated.

Tp4

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding
This is a clear mismatch because the declared purpose is about improving human-sounding writing, but the code does not analyze or revise writing at all. Its primary function is repository compliance validation and sensitive-content scanning for a skill package. Those capabilities are unrelated to the stated writing-review purpose, so the description does not accurately represent the code's behavior.

Scope Creep

Low
Category
Excessive Agency
Content
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Confidence
70% confidence
Finding
Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.

Autonomous Decision Making

Medium
Category
Excessive Agency
Content
4. Did it replace the writer's real nouns and judgement with generic stand-ins?
5. Did it remove useful roughness, side threads, contradiction, or unresolved tension?

If yes to any of these, pause and rewrite before sending. Do not ask the user to catch it.

## Human Voice Rules
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.

Static analysis

No suspicious patterns detected.