T01 · Skill Instruction Hijacking
Error
- Location
SKILL.md:50- Finding
Non-Optional Agent Workflow Directives Override User Control
- Content
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- Remediation
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Security audit
skill-standardization
Security checks for vulnerabilities and agentic risk
Overview
This appears to be a real skill-audit/refactor tool, but it asks the agent to keep modifying files without user confirmation and includes under-disclosed cleanup and reporting risks.
Review before installing. Use read-only audit modes first, keep a separate backup of any target skill, and do not allow update/refactor/cleanup to run automatically without reviewing the planned file changes and deletion targets.
Vulnerability Patterns
- Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
- Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
- 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 (3)
T09 · Insecure Skill Coding Practices
Warning
- Location
scripts/permission_checker.py:43- Finding
Detection Signatures Are Deliberately Obfuscated to Evade Static Scanners
- Content
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- Remediation
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T09 · Insecure Skill Coding Practices
Error
- Location
scripts/cleanup_manager.py:46- Finding
Cleanup Root and Deletion Containment Can Be Manipulated
- Content
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- Remediation
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Vulnerability Patterns
- MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
- 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 (129)
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 98% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 97% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 98% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 98% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 99% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 96% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 97% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 99% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 98% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Tp4
High
- Category
- MCP Tool Poisoning
- Confidence
- 98% confidence
- Finding
Backup rollback, restore, purge, and diff inspection are operationally powerful file-management functions that are not implied by the stated standards-audit purpose. Undisclosed disaster-recovery and restoration actions can materially alter user files and should not be hidden behind a compliance-engine label.
- Content
Ae1
High
- Category
- analysis-evasion
- Confidence
- 100% confidence
- Finding
Referenced artifact was not completely inspected
- Content
md - **版本号三端一致** — 更新时同步 `SKILL.md` / `_meta.json` / `references/changelog.md`
Ae1
High
- Category
- analysis-evasion
- Confidence
- 100% confidence
- Finding
Referenced artifact was not completely inspected
- Content
md - **版本号三端一致** — 更新时同步 `SKILL.md` / `_meta.json` / `references/changelog.md`
Intent-Code Divergence
High
- Category
- Not specified by scanner
- Confidence
- 97% confidence
- Finding
Lines L184-L186 explicitly claim that all review results are 'pure warning mode' and that
scripts.skill_auditalways returns exit code 0 even for ERROR findings. Later, L354-L360 discussesaudit --verifyreturningexit(1), which is an active contradiction in the skill's own documentation about enforcement behavior.- Content
Intent-Code Divergence
High
- Category
- Not specified by scanner
- Confidence
- 99% confidence
- Finding
The CLI claims to support --dry-run, but still calls finalize() and run_cleanup() before printing dry-run output. A user relying on dry-run for safe preview will instead trigger real deletion, creating a high risk of unintended destructive file removal in an operational tool.
- Content
Intent-Code Divergence
High
- Category
- Not specified by scanner
- Confidence
- 97% confidence
- Finding
The implementation marks results as
PASS (LLM 二筛通过)and removes all failing entries merely because a classify file exists, instead of filtering only explicitly classified false positives. This can hide genuine failures and produce falsely clean audit reports, enabling policy bypass and unsafe changes to be approved under the appearance of compliance.- Content
Description-Behavior Mismatch
High
- Category
- Not specified by scanner
- Confidence
- 98% confidence
- Finding
fix_artifact_pathsperforms real destructive and restructuring actions on the target skill: it deletes files matching broad patterns, moves files based on analyzer output, and rewrites references across the tree. For a standards-audit/fix tool, this exceeds low-risk metadata repair and can cause data loss or unintended repository-wide changes if findings are wrong, incomplete, or attacker-influenced.- Content
Static analysis
Detected: suspicious.dynamic_code_execution
Dynamic code execution detected.
Critical
- Code
- suspicious.dynamic_code_execution
- Location
- scripts/skill_audit/__init__.py:82