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feat: Add task related things to schema #671

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0fdf016
feat: Add task related things to schema
He-Pin Nov 18, 2025
b3d1f5e
chore: With taskInfo
He-Pin Nov 20, 2025
22a32ee
chore: with task status consumers
He-Pin Nov 20, 2025
7195cc3
chore: rename taskHint to TaskSupport
He-Pin Nov 21, 2025
360c536
chore: rename task to taskSupport
He-Pin Nov 22, 2025
7ee2cca
chore: Remove task from CreateTaskResult
He-Pin Nov 22, 2025
9744c06
chore: add mcp Message
He-Pin Nov 22, 2025
923b524
chore: add call tool result aux
He-Pin Nov 22, 2025
bd25675
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He-Pin Nov 22, 2025
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210 changes: 145 additions & 65 deletions mcp-core/src/main/java/io/modelcontextprotocol/client/McpClientFeatures.java
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8 changes: 6 additions & 2 deletions mcp-core/src/main/java/io/modelcontextprotocol/server/McpServerFeatures.java
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Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,9 @@ record Async(McpSchema.Implementation serverInfo, McpSchema.ServerCapabilities s
!Utils.isEmpty(prompts) ? new McpSchema.ServerCapabilities.PromptCapabilities(false) : null,
!Utils.isEmpty(resources)
? new McpSchema.ServerCapabilities.ResourceCapabilities(false, false) : null,
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null);
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null,
null // TODO Task management
);

this.tools = (tools != null) ? tools : List.of();
this.resources = (resources != null) ? resources : Map.of();
Expand Down Expand Up @@ -195,7 +197,9 @@ record Sync(McpSchema.Implementation serverInfo, McpSchema.ServerCapabilities se
!Utils.isEmpty(prompts) ? new McpSchema.ServerCapabilities.PromptCapabilities(false) : null,
!Utils.isEmpty(resources)
? new McpSchema.ServerCapabilities.ResourceCapabilities(false, false) : null,
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null);
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null,
null // TODO Task management
);

this.tools = (tools != null) ? tools : new ArrayList<>();
this.resources = (resources != null) ? resources : new HashMap<>();
Expand Down
8 changes: 6 additions & 2 deletions mcp-core/src/main/java/io/modelcontextprotocol/server/McpStatelessServerFeatures.java
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,9 @@ record Async(McpSchema.Implementation serverInfo, McpSchema.ServerCapabilities s
!Utils.isEmpty(prompts) ? new McpSchema.ServerCapabilities.PromptCapabilities(false) : null,
!Utils.isEmpty(resources)
? new McpSchema.ServerCapabilities.ResourceCapabilities(false, false) : null,
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null);
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null,
null // TODO task management
);

this.tools = (tools != null) ? tools : List.of();
this.resources = (resources != null) ? resources : Map.of();
Expand Down Expand Up @@ -175,7 +177,9 @@ record Sync(McpSchema.Implementation serverInfo, McpSchema.ServerCapabilities se
!Utils.isEmpty(prompts) ? new McpSchema.ServerCapabilities.PromptCapabilities(false) : null,
!Utils.isEmpty(resources)
? new McpSchema.ServerCapabilities.ResourceCapabilities(false, false) : null,
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null);
!Utils.isEmpty(tools) ? new McpSchema.ServerCapabilities.ToolCapabilities(false) : null,
null // TODO task management
);

this.tools = (tools != null) ? tools : new ArrayList<>();
this.resources = (resources != null) ? resources : new HashMap<>();
Expand Down
40 changes: 40 additions & 0 deletions mcp-core/src/main/java/io/modelcontextprotocol/spec/McpMessage.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
package io.modelcontextprotocol.spec;

import java.util.Map;
import java.util.Optional;

/**
* An MCP message base class for message driven architecture.
*
*/
public sealed interface McpMessage {

/**
* @return additional metadata related to this resource.
* @see <a href=
* "https://modelcontextprotocol.io/specification/2025-06-18/basic/index#meta">Specification</a>
* for notes on _meta usage
*/
Map<String, Object> meta();

sealed interface McpEvent extends McpMessage {

record TaskCreated(McpSchema.Task task, Map<String, Object> meta) implements McpEvent {
}

record TaskStatusUpdated(McpSchema.Task task, Map<String, Object> meta) implements McpEvent {
}

record TaskProgressUpdated(String taskId, Object progressToken, Map<String, Object> meta) implements McpEvent {
}

record TaskResultRetrieved(Optional<String> taskId, McpSchema.CallToolResult result,
Map<String, Object> meta) implements McpEvent {
}

record TaskFailed(Optional<String> taskId, McpError error, Map<String, Object> meta) implements McpEvent {
}

}

}
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