Agent Client Protocol - v1.0.0
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    Type Alias AgentCapabilities

    Capabilities supported by the agent.

    Advertised during initialization to inform the client about available features and content types.

    See protocol docs: Agent Capabilities

    type AgentCapabilities = {
        loadSession?: boolean;
        promptCapabilities?: PromptCapabilities;
        mcpCapabilities?: McpCapabilities;
        sessionCapabilities?: SessionCapabilities;
        auth?: AgentAuthCapabilities;
        providers?: ProvidersCapabilities | null;
        nes?: NesCapabilities | null;
        positionEncoding?: PositionEncodingKind | null;
        _meta?: { [key: string]: unknown } | null;
    }
    Index

    Properties

    loadSession? promptCapabilities? mcpCapabilities? sessionCapabilities? auth? providers? nes? positionEncoding? _meta?

    Properties

    loadSession?: boolean

    Whether the agent supports session/load.

    promptCapabilities?: PromptCapabilities

    Prompt capabilities supported by the agent.

    mcpCapabilities?: McpCapabilities

    MCP capabilities supported by the agent.

    sessionCapabilities?: SessionCapabilities

    Session lifecycle and prompt capabilities advertised by the agent.

    auth?: AgentAuthCapabilities

    Authentication-related capabilities supported by the agent.

    providers?: ProvidersCapabilities | null

    UNSTABLE

    This capability is not part of the spec yet, and may be removed or changed at any point.

    Provider configuration capabilities supported by the agent.

    By supplying {} it means that the agent supports provider configuration methods.

    nes?: NesCapabilities | null

    UNSTABLE

    This capability is not part of the spec yet, and may be removed or changed at any point.

    NES (Next Edit Suggestions) capabilities supported by the agent.

    positionEncoding?: PositionEncodingKind | null

    UNSTABLE

    This capability is not part of the spec yet, and may be removed or changed at any point.

    The position encoding selected by the agent from the client's supported encodings.

    Optional_meta

    _meta?: { [key: string]: unknown } | null

    The _meta property is reserved by ACP to allow clients and agents to attach additional metadata to their interactions. Implementations MUST NOT make assumptions about values at these keys.

    See protocol docs: Extensibility

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