summarize
Fetch a URL or convert a local file (PDF/DOCX/HTML/etc.) into Markdown using `uvx markitdown`, optionally it can summarize
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Low
Low-risk findings worth noting
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tessl review fix ./skills/summarize/SKILL.mdLow
Low-risk findings.
2 low severity findings. 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 calls `uvx markitdown[pdf] markitdown <url-or-path>` and then in `summarizeWithPi()` embeds the fetched/conversion result (`${body}`) into the `pi` prompt, so runtime free text from outsider-provided URLs/documents flows into the LLM context (indirect prompt injection risk).
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
The script runs uvx markitdown on user-supplied HTTP(S) URLs (e.g., "https://example.com") at runtime and then injects the fetched Markdown into the pi (claude-haiku-4-5) prompt, so remote content can directly control the model's instructions.
- Repository
- mitsuhiko/agent-stuff
- Commit
d265b8e
- Audited
- Security analysis
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