Security audit

SIFS Search: Fast hybrid code search for agents

Security checks for vulnerabilities and agentic risk

Overview

This is a disclosed SIFS-based code search helper, with the main caution being its unpinned third-party CLI dependency.

Install this only if you trust the SIFS package source. Prefer a pinned or verified SIFS release when possible, run it only against source trees you intend to index or inspect, and preview any generated agent instructions before using force install commands.

A.I.G

Vulnerability Patterns

Insecure DependenciesIntroduces malicious components through unsafe dependency sources
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

Findings (1)

T08 · Insecure Dependencies

Warning

Location: SKILL.md:6
Finding: Unpinned Third-Party Executable Dependency
Content: View full analysis
Remediation: View remediation

SkillSpector

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 (1)

Tp4

High

Category: MCP Tool Poisoning
Confidence: 95% confidence
Finding: The declared description is for a code-search/discovery skill operating over a local checkout or Git source. The supplied code does not search code, inspect repositories, or locate symbols/files/implementations. Instead, it checks whether the sifs command exists on PATH, prints install instructions if absent, and runs version/context commands as a readiness test. That is a materially different primary purpose, so this is a clear description-behavior mismatch.
Content: No source excerpt is available for this finding.