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Security audit

古典黄历

Security checks for vulnerabilities and agentic risk

Overview

This is a local Chinese almanac/date-selection skill with no network use, external dependencies, file mutation, or persistence, though its documentation has script-name inconsistencies.

Installers should expect a Chinese-language astrology/almanac CLI. Treat any 八字 input as personal information, but the inspected code only uses it locally for scoring. Use scripts/almanac.js despite the stale README/SKILL examples that mention other script names.

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
Vulnerability Patterns
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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 (7)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The entire skill description is presented only in Chinese, including setup and usage instructions, with no indication that users may choose another language or that the skill is intentionally limited to Chinese-speaking users. Under the policy for natural-language constraints, forcing a specific language without opt-in is a locale/language policy concern.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The trigger list includes broad, common phrases such as '黄历', '择日', and '选日子' that may cause the skill to activate in loosely related conversations where the user did not intend to invoke this specific capability. Unintended invocation can misroute user requests, create confusing or unwanted astrological guidance, and increase the chance that sensitive personal data such as birth dates or 八字 is elicited unnecessarily.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

This code file contains user-facing natural-language strings that force a specific language/locale. The policy allows locale constraints only when users are given a choice or the restriction is clearly documented and justified, which is not present here.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The script's primary interactive output is presented only in Chinese, which constitutes a language/locale policy concern under the natural-language policy rule. There is no indication that the user can choose another language or that the locale limitation is explicitly justified.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
83% confidence
Finding

The natural-language interface, examples, activity types, and trigger phrases are presented entirely in Chinese, which effectively imposes a language constraint. The file does not state that Chinese is optional, offer an alternative language, or justify the restriction as a region-specific requirement.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
88% confidence
Finding

The natural-language description is written entirely in Chinese, and the manifest provides no indication that language choice is optional or that the skill is intentionally limited to a Chinese-speaking audience. Under the locale/language policy, forcing a specific language without user opt-in can be a policy concern.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
88% confidence
Finding

SQP-3 applies to all file types and covers language or locale policy violations. This reference file presents all content in a single forced language, with no opt-in, alternative locale, or explanation that the skill is intentionally limited to Chinese users or a China-specific compliance/domain context.

Content

No source excerpt is available for this finding.