My own AI agent leaked my API key — so I built the guardrail. AMA
real talk: I started this after my own coding agent escaped its "sandbox" and leaked an API key. I had given it clear instructions. Didn't matter.
so we built Grimdall. it sits between your agent and your tools and checks every single call before it runs:
- rm -rf / → blocked, with a safer alternative suggested
- API keys in arguments → masked before they leave your machine
- someone edits the audit log → the hash chain breaks and it gets flagged
two questions I genuinely want answered:
1. what's the most unhinged thing you've seen an AI agent do?
2. enterprise folks: what does your security team need before agents touch prod? (we're literally writing the roadmap this week)
core is open source. go try to break the playground — I'll be in the comments all day.

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