gstack-upgrade
Upgrade gstack to the latest version. Detects global vs vendored install, runs the upgrade, and shows what's new. Use when asked to "upgrade gstack", "update gstack", or "get latest version". Voice triggers (speech-to-text aliases): "upgrade the tools", "update the tools", "gee stack upgrade", "g stack upgrade".
Security
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (high risk: 0.90). The skill explicitly clones the gstack repository from the public web (git clone https://github.com/garrytan/gstack.git in the vendored-upgrade flow) and then runs ./setup, executes migration scripts from the checked-out INSTALL_DIR and reads INSTALL_DIR/CHANGELOG.md, so external repository contents (untrusted third‑party data/scripts) are ingested and can directly alter execution and subsequent actions.
W012: Unverifiable external dependency detected (runtime URL that controls agent)
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
Potentially malicious external URL detected (high risk: 1.00). The skill's vendored-upgrade path performs a runtime git clone of https://github.com/garrytan/gstack.git and then runs ./setup from the fetched tree, which fetches remote code during runtime and executes it, meeting the criteria for a high-risk external dependency.
- Repository
- garrytan/gstack
- Commit
7b4738b
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.