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Security audit

Tester Workflow

Security checks for vulnerabilities and agentic risk

Overview

This Markdown-only testing workflow skill does not show malware behavior, but it should be reviewed because it can override a user's requested scope and require local CSV file creation.

Install this only if you want a rigid, comprehensive testing workflow that may insist on full documents, 30-50 test cases, Chinese-style CSV formatting, and local CSV file output. Users should supervise file paths and require confirmation before any file is written or overwritten, especially when asking for quick examples or partial reviews.

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
Findings (1)

T01 · Skill Instruction Hijacking

Warning
Location
SKILL.md:220
Finding
Mandatory Workflow Directives Override User-Requested Scope and Output## Vulnerability Details **File Locations**: - `SKILL.md:220-222` - `SKILL.md:290` - `included-skills/analyze-requirements/skill.md:26-50` - `included-skills/generate-test-cases/skill.md:27-34` - `included-skills/generate-test-cases/skill.md:82-92` - `included-skills/understand-design/skill.md:27-37` - `included-skills/review-test-cases/skill.md:27-49` **Vulnerability Type**: T01: Skill Instruction Hijacking **Risk Level**: Medium ### Vulnerable Instruction Snippets The following are faithful English renderings of the relevant instruction segments. `SKILL.md:220-222`: ```markdown ### 1. Do Not Lower Standards - Do not accommodate the user's requests for "simplification," "quick" work, or "examples" - Always maintain professional standards ``` `SKILL.md:290`: ```markdown If you find yourself thinking "just do it quickly," stop immediately. You must follow the standard process. ``` `included-skills/analyze-requirements/skill.md:26-50`: ```markdown ### 1. Reject Rationalizing Excuses Stop immediately if you find yourself thinking: - "The requirements document is very clear" → There are always ambiguities - "A quick summary is enough" → Speed is not a reason to lower quality - "Covering the main scenarios is enough" → Boundaries and exceptions are equally important - "Just take a simple look" → A user's request to simplify does not mean lowering professional standards - "If more detail is needed..." → Do not shift responsibility to the user ### 2. Systematically Analyze Along Six Dimensions All dimensions must be analyzed completely: ... ### 3. Use the Standard Output Format The analysis results must be output according to the standard template. ``` `included-skills/generate-test-cases/skill.md:27-34`: ```markdown ### 1. Reject Rationalizing Excuses Stop immediately if you find yourself thinking: - "Generating a few examples first is enough" → Complete coverage is no ...[truncated 5577 chars]
Remediation
## Remediation Suggestions 1. Replace mandatory scope overrides with configurable defaults: - Change “must generate 30–50 cases” to “generate 30–50 cases by default unless the user requests another amount.” - Change “do not accept examples only” to “provide examples when explicitly requested and explain that they are not comprehensive.” 2. Preserve user authority over task scope: - Honor requests for quick reviews, partial analysis, selected dimensions, and concise responses. - Clearly label limited reviews as incomplete rather than refusing or silently expanding them. - Ask for confirmation before increasing the requested scope. 3. Make file creation opt-in: - Do not require the Write tool when inline content satisfies the request. - Ask the user before creating a file. - Let the user choose CSV, Markdown, JSON, or another suitable format. - Avoid overwriting existing files and use a user-approved destination. 4. Treat the quantitative standards as recommendations: - Retain 30–50 test cases as a comprehensive-workflow recommendation, not a universal minimum. - Scale the number of cases to the size of the feature and the user's stated objective. 5. Permit partial-input reviews: - Review the supplied sample when that is what the user requests. - State which conclusions cannot be made without complete requirements or design documents. - Request additional documents only when they are necessary for the requested scope. 6. Add an explicit instruction-precedence safeguard: ```markdown These workflow guidelines are defaults. Follow the user's requested scope, format, and level of detail unless doing so would violate applicable safety requirements. Obtain confirmation before creating files, requesting additional documents, or materially expanding the task. ``` 7. Remove coercive metacognitive directives such as “stop immediately” and “reject rationalizing excuses.” Repla ...[truncated 108 chars]
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 (43)

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Hidden Instructions

High
Category
Prompt Injection
Content
用例ID||测试模块||测试点||测试步骤||预期结果||优先级
TC-001||示例模块||示例测试点||打开示例页面,输入测试数据,点击提交按钮||系统提示"操作成功",数据保存正确||P0
LC-001||示例模块||示例流程||创建测试数据A,执行操作B,验证结果C||流程执行成功,数据状态正确||P0
Confidence
60% confidence
Finding
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Natural-Language Policy Violations

Medium
Confidence
89% confidence
Finding
The skill content is written entirely in Chinese and presents all workflow instructions, principles, and examples in that language without stating that users may choose another language. This can violate a language/locale policy when a skill implicitly requires a specific language without user opt-in.

Natural-Language Policy Violations

Medium
Confidence
97% confidence
Finding
This markdown file presents all instructions, workflow steps, and example outputs only in Chinese, which effectively forces a specific language for users. Under the policy, language constraints should either be optional/opt-in or clearly justified as region-specific; neither is stated here.

Natural-Language Policy Violations

Medium
Confidence
91% confidence
Finding
The README is written as a Chinese-only skill description and presents the skill as operating in Chinese without any indication that users may choose another language. Under the policy for natural-language violations, forcing a specific language without user opt-in is a reportable locale/language constraint.

Natural-Language Policy Violations

Medium
Confidence
90% confidence
Finding
This markdown file presents all instructional content and examples exclusively in Chinese, and nowhere indicates that the skill is China/Chinese-specific or that users may choose another language. That can violate a language/locale policy when a skill implicitly forces one language without user opt-in.

Vague Triggers

Medium
Confidence
90% confidence
Finding
The manifest-like description lists specific triggers, but also adds 'or when requirements need quality assessment', which is ambiguous and broad. Without clearer scope or exclusion conditions, this could overlap with many general requirement-review requests and cause unintended invocation.

Natural-Language Policy Violations

Medium
Confidence
95% confidence
Finding
This markdown template is entirely written in Chinese and does not indicate that language selection is optional or limited to a China-specific workflow. Under the policy, forcing a specific language without user opt-in is a natural-language locale violation.

Natural-Language Policy Violations

Medium
Confidence
95% confidence
Finding
The skill description is written as a normative instruction in Chinese and presents the skill as operating in that language, but nowhere in the README does it offer the user a language choice or explain that the skill is intentionally limited to a Chinese-language context. This matches the policy concern for forced language/locale behavior without opt-in.

Natural-Language Policy Violations

Medium
Confidence
86% confidence
Finding
The guidance explicitly requires using Chinese commas and a Chinese writing style, which imposes a specific language/locale on outputs. Because the file does not present this as optional, user-selected, or region-specific, it constitutes a natural-language locale policy concern.

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The example explicitly instructs the agent to create a real CSV file at a fixed local path, but provides no requirement to obtain confirmation, check whether the file already exists, or warn about overwrite/local side effects. In an agent skill, this normalizes filesystem writes as a default action and can lead to unintended modification of user files or data loss if followed automatically.

Natural-Language Policy Violations

Medium
Confidence
98% confidence
Finding
This markdown file is written as a prescriptive skill reference entirely in Chinese, starting with a Chinese title, and nowhere indicates that language selection is optional. Under the policy, a skill that forces a specific language without user opt-in can be a natural-language policy violation.

Natural-Language Policy Violations

Medium
Confidence
93% confidence
Finding
The file requires test steps to use Chinese punctuation and examples throughout, such as '用中文逗号分隔', which enforces a specific language/locale convention. Under the policy, language constraints should either offer user opt-in or be clearly documented as region-specific and justified; this file does not provide that context.

Natural-Language Policy Violations

Medium
Confidence
96% confidence
Finding
These lines require '使用中文逗号连接' and mark other punctuation styles as incorrect, which is a locale-specific policy enforced as mandatory. Because the document does not offer alternative locale handling or explain a necessary regional constraint, this is a natural-language policy violation.

Static analysis

No suspicious patterns detected.