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tessl-labs/best-practice-skill-improver

Eval-driven process for improving best-practice skills — analyse eval results, research what agents get wrong, rewrite for maximum uplift, and measure improvement with scenarios.

84

Quality

84%

Does it follow best practices?

Impact

Pending

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

Overview
Quality
Evals
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Security

1 medium severity finding. This skill can be installed but you should review these findings before use.

Medium

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: 0.80). Yes — Phase 3 ("Research High-Uplift Practices") explicitly instructs the workflow to search and gather public GitHub issues, blog posts, FAQs/wikis and other external documentation and include those references so the agent reads and uses untrusted, user-generated web content to decide which practices to teach (SKILL.md "Finding candidates" and "Gathering references").

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