Quick capture URLs with automatic content extraction, insights, and categorization into knowledge booklets
34
30%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Advisory
Suggest reviewing before use
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npx tessl skill review --optimize ./.claude/skills/url-dump/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 explicitly accepts arbitrary user-shared URLs and "Fetch the web page content" (see "2. URL Validation & Fetch" -> "Fetch the web page content" and the "Content Extraction" section), meaning it ingests untrusted public web content which is then analyzed and used to drive categorization, insights, and follow-up actions—allowing third-party content to influence agent behavior.
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). The skill explicitly fetches arbitrary user-supplied URLs at runtime (e.g., raw GitHub or pastebin URLs such as https://raw.githubusercontent.com/... or https://pastebin.com/...), injecting the fetched page content into the agent's processing/context for summary and insight generation, so external content can directly control prompts or model output.
034af4c
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