gbrain-upgrade
Keep gbrain current. When a `gbrain` invocation prints an `UPGRADE_AVAILABLE <old> <new>` marker (or `gbrain self-upgrade --check-only` reports an update), apply it per the configured self_upgrade.mode: notify (prompt the operator with a 4-option question + snooze) or auto (apply silently). The action is always the hardcoded `gbrain self-upgrade` — never a command read from the marker.
79
100%
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Medium
Suggest reviewing before use
Security
1 medium severity finding. This skill can be installed but you should review these findings before use.
W013: Attempt to modify system services in skill instructions.
What this means
The skill prompts the agent to compromise the security or integrity of the user’s machine by modifying system-level services or configurations, such as obtaining elevated privileges, altering startup scripts, or changing system-wide settings.
Why it was flagged
The skill explicitly directs the agent to run "gbrain self-upgrade" and to modify persistent configuration (set self_upgrade.mode to auto/off), including silently applying upgrades in auto mode, which causes the agent to change the host's installed software and persistent settings without requiring per-action operator approval.
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
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
The workflow reads a marker-triggered update check and (in notify mode) runs `gbrain self-upgrade --check-only --json` to ingest JSON fields like `changelog_diff` and `release_url`, which originate from external update/release data (outsider-authored content) that is then summarized into bullets for the LLM prompt.
- Repository
- garrytan/gbrain
- Commit
3fafb69
- Audited
- Security analysis
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