agent: collapse capability As* helpers onto two generic gates

1b1e8b5→main·

Soph·2w ago·1 file·+44 added/-125 removed

Every As* helper repeated the same nil-check / type-assert / CapabilityDeclarer-gate dance. Fold the logic into declaredCapability[T] (assert + DeclaredCaps gate) and builtinCapability[T] (assert only, for built-in-only capabilities), leaving each As* a one-line wrapper with its existing doc contract. Behavior is unchanged and covered by the existing per-capability gate tests in capabilities_test.go.

Co-Authored-By: Claude Fable 5 noreply@anthropic.com

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Changes

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• cmd/entire/cli/agent

• Mcapabilities.go+44/-125

30 unmodified lines

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// SubagentAwareExtractor bool json:"subagent_aware_extractor" // ... (remaining function definitions) ...

// AsSkillEventExtractor returns the agent as SkillEventExtractor if it implements // the interface. Skill-event extraction is currently built-in only; external // agents do not expose this optional interface through declared capabilities. func AsSkillEventExtractor(ag Agent) (SkillEventExtractor, bool) { if ag == nil { return nil, false } see, ok := ag.(SkillEventExtractor) return see, ok return builtinCapabilitySkillEventExtractor }