webhook-transforms
Generic framework for converting external events (SMS, meetings, social mentions) into brain-ingestible signals. Define a transform function, register a webhook URL, and incoming events get processed through the brain pipeline.
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Fix and improve this skill with Tessl
tessl review fix ./skills/webhook-transforms/SKILL.mdW007: Insecure credential handling detected in skill instructions.
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
The skill requires preserving raw webhook payloads and mapping payload fields into brain pages (and writing raw payloads to dead-letter files), which forces the agent to include incoming values verbatim and therefore could expose API keys or other secrets contained in those payloads.
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
SKILL.md specifies that on webhook receipt the system parses an external webhook payload (outsider-authored free text/JSON) and transforms it into brain page markdown (LLM-readable text) via the “Write brain page via `gbrain put`” step, with dead-letter logging that preserves the raw payload as `_dead-letter/{timestamp}.md` on transform failure.
- Repository
- garrytan/gbrain
- Commit
e78f1c3
- Audited
- Security analysis
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