Specified
Interfaces, permission model, evidence requirements, failure modes and the conformance checks a release must pass.
Agents, MCP & capabilities · Concept
Capabilities with boundaries attached.
Each capability in AgentPlugin is specified as a contract: scope, permission, evidence and failure behaviour.
01
The five contracts
Numbered for reference; the order is not a priority.
- 01. Agent and capability manifests
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Specified with its own failure modes, limits and evidence requirements before it is exposed to an agent.
Scope is attached to the capability, not to the caller, so delegation does not widen it silently.
Surfaces REST · MCP · CLI
- 02. Dependency and version management
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Implemented through one permission model that applies to the human interface and the machine interface alike.
The same capability is reachable from the application, the API and the agent surface without a second implementation.
Surfaces REST · MCP · CLI
- 03. Signed distributable packages
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Implemented through one permission model that applies to the human interface and the machine interface alike.
The same capability is reachable from the application, the API and the agent surface without a second implementation.
Surfaces REST · MCP · CLI
- 04. Sandboxing and installation workflows
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Defined as a scoped contract: the product states what it may touch, what it may change and what it must record.
Operators can inspect the capability before it runs and review its record afterwards.
Surfaces REST · MCP · CLI
- 05. Licensing, telemetry and lifecycle tools
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Defined as a scoped contract: the product states what it may touch, what it may change and what it must record.
Scope is attached to the capability, not to the caller, so delegation does not widen it silently.
Surfaces REST · MCP · CLI
02
What is specified, and what is not
A capability in a specification is not a shipped feature.
Not claimed
Running deployments, measured performance, third-party certifications or integration approvals.