been thinking about this exact problem for a while. my own setup uses OS keyring with a token substitution pattern — the agent requests a credential by name, the substitution happens at execution time, the LLM never sees the raw value in context or logs. works reasonably well. but the problem with that model is it's static protection. if the agent process itself becomes hostile or gets prompt-injected, keyring doesn'…
Re: Show HN: Agent Vault – Open-source credential proxy and vault for agents
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