Generate the Agent Supply Chain newsletter by researching team activity on GitHub and Confluence, then creating a Confluence draft and Gmail draft
66
80%
Does it follow best practices?
Impact
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No eval scenarios have been run
Advisory
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npx tessl skill review --optimize ./.claude/skills/agent-supply-chain-newsletter/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: 0.85). Outsider-authored free text is ingested via runtime reads of Confluence pages (e.g., `mcp__claude_ai_Atlassian__getConfluencePage` / `searchConfluenceUsingCql` returning markdown content from the ASC1 space) and GitHub PR metadata/content from other authors (e.g., `gh pr list` / `gh search prs` for each team member), which the agent then synthesizes into the newsletter LLM context.
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 calls Confluence at datadoghq.atlassian.net (via mcp__claude_ai_Atlassian__getConfluencePage and search calls) at runtime to fetch existing newsletter content which is then used to shape the agent's output/tone, so remote content directly controls the agent's prompts and is a required dependency.
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