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Security audit

gstack Diagnose

Security checks for vulnerabilities and agentic risk

Overview

This is a plain Markdown debugging workflow skill with no bundled code, hidden execution, or persistence, though users should be careful when applying it to production diagnostics.

Install is reasonable for a debugging workflow. Before allowing production access or sharing HAR files, logs, dumps, or recordings, confirm what data will be captured, redact secrets and personal data, limit retention and access, and require cleanup of temporary probes after the issue is diagnosed.

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 (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The description says to use the skill when a user 'has tried 2+ things' or 'says diagnose,' which are broad conditions that can overlap with ordinary conversation about troubleshooting. The file does not provide explicit negative examples or tighter constraints to distinguish when this skill should not activate.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The skill explicitly suggests requesting permission to add temporary production instrumentation, but it does not warn about minimizing collection, avoiding secrets/PII, or controlling retention and access. In a debugging context, instrumentation often captures request payloads, headers, tokens, or user data, so omission of privacy and data-handling safeguards can lead to unintended exposure.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.