Security audit

weekly-report-writer

Security checks for vulnerabilities and agentic risk

Overview

This is a simple Chinese weekly-report writing skill with no executable code, persistence, credentials, or hidden data access.

Installers should expect this skill to format related status updates as formal Chinese weekly reports. If you often ask for brief progress summaries or English output, you may need to override the style or avoid invoking it for ambiguous requests.

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

Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
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)

Vague Triggers

Medium

Confidence: 94% confidence
Finding: The trigger conditions are broad enough to activate on common phrases like '本周总结' or '给老板汇报', which can cause the skill to take over ordinary status-update interactions without an explicit request to write a weekly report. This can lead to unintended formatting, loss of user intent, and over-collection or transformation of work information in contexts where the user wanted a brief answer rather than a formal report.

Natural-Language Policy Violations

Medium

Confidence: 92% confidence
Finding: The instruction “默认输出中文” imposes a specific language preference as the default behavior. Under the policy, forcing a language without user opt-in or an explicit justified locale constraint is a natural-language policy violation.

Static analysis

No suspicious patterns detected.