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newsletter-signal-scanner

Subscribe to and scan industry newsletters for buying signals, competitor mentions, ICP pain-point language, and market shifts. Parses incoming newsletter emails via AgentMail, matches against keyword campaigns, and delivers a weekly digest of actionable signals. Use when a marketing team wants to turn newsletter subscriptions into an ongoing intelligence feed without manual reading.

60

Quality

71%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./skills/monitoring/composites/newsletter-signal-scanner/SKILL.md
SKILL.md
Quality
Evals
Security

Low

Low-risk findings.

1 low severity finding. Worth noting, but not necessarily harmful.

Low

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 skill’s runtime workflow (Phase 1 Scan Inbox / Phase 3 Extract Signal Snippets) ingests full email body text by fetching new messages from a monitored AgentMail inbox (agentmail.dev) and then scanning/extracting keyword contexts from that free text.

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Repository
gooseworks-ai/goose-skills
Audited
Security analysis
Snyk

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