capability-shield-awareness
OPT-IN BLOCKING capability allowlist. Pairs with hydra-capability-fence (advisory). When state/capability-policy.json sets enabled:true, this shield blocks any tool call whose name is not in the active SKILL.md frontmatter allowed-tools list. Use when the developer asks why a tool call was blocked, wants to enable or tune the capability allowlist, or reviews a stderr "capability-shield (BLOCKED)" message. Default disabled — out of the box this shield does nothing. Do not use for observability without enforcement (see capability-fence).