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mcp: replace type struct{} with any for user-defined fields #334

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Merged
merged 1 commit into from
Aug 20, 2025
Merged

mcp: replace type struct{} with any for user-defined fields #334

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6 changes: 3 additions & 3 deletions mcp/protocol.go
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Original file line number Diff line number Diff line change
Expand Up @@ -126,7 +126,7 @@ func (x *CancelledParams) SetProgressToken(t any) { setProgressToken(x, t) }
// additional capabilities.
type ClientCapabilities struct {
// Experimental, non-standard capabilities that the client supports.
Experimental map[string]struct{} `json:"experimental,omitempty"`
Experimental map[string]any `json:"experimental,omitempty"`
// Present if the client supports listing roots.
Roots struct {
// Whether the client supports notifications for changes to the roots list.
Expand Down Expand Up @@ -242,7 +242,7 @@ type CreateMessageParams struct {
Messages []*SamplingMessage `json:"messages"`
// Optional metadata to pass through to the LLM provider. The format of this
// metadata is provider-specific.
Metadata struct{} `json:"metadata,omitempty"`
Metadata any `json:"metadata,omitempty"`
// The server's preferences for which model to select. The client may ignore
// these preferences.
ModelPreferences *ModelPreferences `json:"modelPreferences,omitempty"`
Expand Down Expand Up @@ -997,7 +997,7 @@ type ServerCapabilities struct {
// Present if the server supports argument autocompletion suggestions.
Completions *CompletionCapabilities `json:"completions,omitempty"`
// Experimental, non-standard capabilities that the server supports.
Experimental map[string]struct{} `json:"experimental,omitempty"`
Experimental map[string]any `json:"experimental,omitempty"`
// Present if the server supports sending log messages to the client.
Logging *LoggingCapabilities `json:"logging,omitempty"`
// Present if the server offers any prompt templates.
Expand Down