The original title is about designing safer service tokens for agents with specific characteristics: short-lived, scoped, challenge-based.

Short summary

Agent security design should use short-lived, scoped tokens minted via challenge-based exchange instead of static secrets, reducing blast radius from leaks and fitting agent behavior better. The SAL protocol demonstrates this pattern with examples: tokens expire in seconds/minutes with narrow scope (e.g., task:append), and are minted only after cryptographic proof from the agent. This approach encourages cleaner architecture while keeping authorization artifacts closer to capabilities than master keys.

• •Short-lived, scoped tokens reduce blast radius if credentials leak
• •Challenge-based exchange proves agent identity without transmitting static secrets
• •SAL protocol and Vibebase reference implementation demonstrate the pattern

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