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Security audit

golang-data-structures

Security checks for vulnerabilities and agentic risk

Overview

This skill is a coherent Go data-structure guidance package with no hidden install steps, persistence, or unrelated data access.

Install this for Go projects when you want help choosing or optimizing data structures. Because it can guide edits to Go files and may recommend unsafe.Pointer or weak pointer patterns, review generated code carefully in low-level memory sections and run your normal Go tests before merging.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

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 · evals/evals.json (reported line 28)May include surrounding context.

json
"id": 3,
    "name": "AddCleanup",
    "description": "String intern with weak.Pointer + runtime.AddCleanup for auto map shrink",
    "task": "Write a symbol table deduplicator in package `symbols` for Go 1.24+. `func Intern(s string) *string` returns a canonical pointer for equivalent strings. When all external references to the canonical string are dropped, it should be GC'd AND its map entry should be automatically removed (not just become a dead weak pointer — the map must shrink). Thread-safe.",
    "assertions": [
      { "id": "3.1", "text": "Uses `weak.Pointer` or `weak.Make`", "trap": "Without skill, model uses runtime.SetFinalizer instead of weak.Pointer" },
      { "id": "3.2", "text": "Uses `runtime.AddCleanup` (not SetFinalizer)", "trap": "Without skill, model defaults to the more error-prone SetFinalizer pattern" },

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 · evals/evals.json (reported line 32)May include surrounding context.

json
"id": 3,
    "name": "AddCleanup",
    "description": "String intern with weak.Pointer + runtime.AddCleanup for auto map shrink",
    "task": "Write a symbol table deduplicator in package `symbols` for Go 1.24+. `func Intern(s string) *string` returns a canonical pointer for equivalent strings. When all external references to the canonical string are dropped, it should be GC'd AND its map entry should be automatically removed (not just become a dead weak pointer — the map must shrink). Thread-safe.",
    "assertions": [
      { "id": "3.1", "text": "Uses `weak.Pointer` or `weak.Make`", "trap": "Without skill, model uses runtime.SetFinalizer instead of weak.Pointer" },
      { "id": "3.2", "text": "Uses `runtime.AddCleanup` (not SetFinalizer)", "trap": "Without skill, model defaults to the more error-prone SetFinalizer pattern" },

Static analysis

No suspicious patterns detected.