Security audit

SFSymbolsKit

Security checks for vulnerabilities and agentic risk

Overview

The skill appears to do what it says: validate Apple SF Symbol names, with a disclosed third-party Swift package addition users should review before applying.

Install is reasonable if you want grounded SF Symbol lookup. Before letting an agent modify a project, confirm you want the SFSymbolsKit dependency, review the repository, and prefer pinning to a reviewed exact version or commit for production or CI use.

A.I.G

Vulnerability Patterns

Insecure DependenciesIntroduces malicious components through unsafe dependency sources
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

Findings (1)

T08 · Insecure Dependencies

Warning

Location: SKILL.md:49
Finding: Unpinned Third-Party Swift Package Creates a Supply-Chain Execution Risk
Content: View full analysis
Remediation: View remediation
" ) ``` 4. Alternatively, use an exact, reviewed release rather than a compatible version range, and commit `Package.resolved` to preserve the reviewed resolution. 5. Verify release provenance, repository ownership, commit signatures, and checksums where available. 6. Restrict dependency resolution and builds in CI using sandboxing, minimal filesystem permissions, network controls, and narrowly scoped secrets. 7. Establish an update-review process so dependency revisions are scanned and approved before adoption. ]]>

SkillSpector

Vulnerability Patterns

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
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (1)

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.
md
in the catalog — always trust `symbols.json`'s `property`, never a