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ConceptCapability Model / 能力令牌

Capability Model

A classical access-control model in operating-system security that treats permissions as explicitly transferable but unforgeable tokens. Capabilities can only be passed from a parent process to a child process, and a parent cannot grant capabilities it does not itself possess, mathematically guaranteeing monotonically non-increasing privilege.

Timeline (last 90 days)

Oct 26

One approach to mitigating the security risks of self-modifying agents is to adopt a capability model, restricting code modification permissions to within a sandbox and requiring that modified code be approved by a verifier independent of the agent before it can be loaded.

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Oct 14

Fine-grained permissions typically rely on technical means such as sandboxes, container file system mounts, and capability models, and these mechanisms increase toolchain complexity and slow down debugging.

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