Security audit

Tianshu Review Calendar

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple local exam-review schedule generator with no network, credential, persistence, or privileged behavior, though it has minor usability and input-bounds limitations.

Install only if a Chinese-language exam review calendar is useful to you. Use normal schedule lengths and only pass --file paths that contain study topics you intend the skill to read.

A.I.G

Vulnerability Patterns

Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
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)

T09 · Insecure Skill Coding Practices

Note

Location: scripts/review_cal.js:10
Finding: Unbounded Schedule Length Permits Local Resource Exhaustion
Content: View full analysis
Remediation: View remediation
366) { console.error('--days must be an integer between 1 and 366'); process.exit(1); } o.days = days; } ``` This prevents excessive iteration counts and rejects ambiguous inputs instead of converting them into unexpectedly large workloads. ]]>

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)

Natural-Language Policy Violations

Medium

Category: Not specified by scanner
Confidence: 97% confidence
Finding: This code emits all user-facing errors, usage text, and generated content in Chinese, which effectively forces a specific language for all users. The file does not provide any opt-in, locale selection, or justification that the skill is intended only for a Chinese-speaking or region-specific context.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.