Google Gemini CLI code review with Gemini 2.5 Pro, 1M token context, CI/CD integration
49
37%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
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npx tessl skill review --optimize ./skills/gemini-review/SKILL.mdSecurity
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
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.
Third-party content exposure detected (high risk: 1.00). The skill's workflows explicitly feed untrusted, user-generated pull request diffs into the model (e.g., "git diff origin/main...HEAD > diff.txt" and the GitHub Action/GitLab CI steps that call gemini with "$(cat diff.txt)"), so third-party PR/repo content is ingested and can directly influence the agent's review outputs and actions.
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.
Potentially malicious external URL detected (high risk: 0.90). Flagged because the skill explicitly runs the command "gemini extensions install https://github.com/gemini-cli-extensions/code-review" at runtime, which fetches and installs remote extension code that will execute locally and directly control the agent's review prompts/commands.
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