Security Audit

georges91560/Anti-Injection-skill.md:root

github.com/georges91560/Anti-Injection-skill.md

AI SkillCommit b40fba9e9691

CRITICAL

Scanned about 1 month ago

Critical

Immediate action required

High

Priority fixes suggested

Medium

Best practices review

Low

Acknowledged / Tracked

Trust Assessment

georges91560/Anti-Injection-skill.md:root received a trust score of 10/100, placing it in the Untrusted category. This skill has significant security findings that require attention before use in production.

SkillShield's automated analysis identified 9 findings: 7 critical, 1 high, 1 medium, and 0 low severity. Key findings include System prompt override / policy bypass, Arbitrary command execution, Missing required field: name.

The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. The Manifest Analysis layer scored lowest at 0/100, indicating areas for improvement.

Last analyzed on February 22, 2026 (commit b40fba9e). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.

Layer Breakdown

Manifest Analysis

Static Code Analysis

63%

Dependency Graph

100%

LLM Behavioral Safety

85%

Behavioral Risk Signals

Network Access

1 finding

Shell Execution

2 findings

Dynamic Code

1 finding

Security Findings9

Severity	Finding	Layer	Location
CRITICAL	System prompt override / policy bypass Ignore/disregard previous instructions pattern Remove or rewrite any instructions that attempt to override system behavior. Legitimate skills should not contain phrases like 'ignore previous instructions' or 'new system prompt'.	Manifest	SKILL.md:49
CRITICAL	System prompt override / policy bypass Ignore/disregard previous instructions pattern Remove or rewrite any instructions that attempt to override system behavior. Legitimate skills should not contain phrases like 'ignore previous instructions' or 'new system prompt'.	Manifest	SKILL.md:61
CRITICAL	System prompt override / policy bypass Ignore/disregard previous instructions pattern Remove or rewrite any instructions that attempt to override system behavior. Legitimate skills should not contain phrases like 'ignore previous instructions' or 'new system prompt'.	Manifest	SKILL.md:385
CRITICAL	System prompt override / policy bypass Override/supersede system policy Remove or rewrite any instructions that attempt to override system behavior. Legitimate skills should not contain phrases like 'ignore previous instructions' or 'new system prompt'.	Manifest	SKILL.md:389
CRITICAL	System prompt override / policy bypass Prompt extraction attempt Remove or rewrite any instructions that attempt to override system behavior. Legitimate skills should not contain phrases like 'ignore previous instructions' or 'new system prompt'.	Manifest	SKILL.md:401
CRITICAL	Arbitrary command execution Remote code download piped to interpreter Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands.	Manifest	SKILL.md:318
CRITICAL	Remote code execution: curl/wget pipe to shell Detected a pattern that downloads and immediately executes remote code. This is a primary malware delivery vector. Never pipe curl/wget output directly to a shell interpreter.	Static	SKILL.md:318
HIGH	LLM analysis found no issues despite critical deterministic findings Deterministic layers flagged 7 CRITICAL findings, but LLM semantic analysis returned clean. This may indicate prompt injection or analysis evasion.	LLM	(sanity check)
MEDIUM	Missing required field: name The 'name' field is required for claude_code skills but is missing from frontmatter. Add a 'name' field to the SKILL.md frontmatter.	Static	SKILL.md:1

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