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feat: Add title field support to MCP schema classes (#372)

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- Add BaseMetadata interface with name() and title() methods for consistent metadata handling
- The Prompt, PromptArgument, Resource, ResourceTemplate, ResuorceLink, PromptReference, Tool,
  and Implementation classes implement the BaseMetadata interface, adding a new, optional title field
- Update constructors to support backward compatibility while allowing title specification
- Modify ResourceContent interface to extend BaseMetadata
- Update all test cases to accommodate new title parameter

The title field provides human-readable display names optimized for UI contexts,
while name remains for programmatic/logical use. This change maintains backward compatibility.

Signed-off-by: Christian Tzolov <christian.tzolov@broadcom.com>
Co-authored-by: Christian Tzolov <christian.tzolov@broadcom.com>
This commit is contained in:
bzsurbhi 2025-07-03 11:43:28 -07:00 • committed by Christian Tzolov
commit 9977a064d5
3 changed files with 1053 additions and 929 deletions
Download patch file Download diff file Expand all files Collapse all files

4
mcp-test/src/main/java/io/modelcontextprotocol/client/AbstractMcpAsyncClientTests.java
View file

@ -420,7 +420,7 @@ public abstract class AbstractMcpAsyncClientTests {
.consumeNextWith(result -> {
assertThat(result.prompts()).isNotNull();
// Verify that the returned list is immutable
assertThatThrownBy(() -> result.prompts().add(new Prompt("test", "test", null)))
assertThatThrownBy(() -> result.prompts().add(new Prompt("test", "Test", "test", null)))
.isInstanceOf(UnsupportedOperationException.class);
})
.verifyComplete();
@ -604,7 +604,7 @@ public abstract class AbstractMcpAsyncClientTests {
assertThat(result.resourceTemplates()).isNotNull();
// Verify that the returned list is immutable
assertThatThrownBy(() -> result.resourceTemplates()
.add(new McpSchema.ResourceTemplate("test://template", "test", null, null, null)))
.add(new McpSchema.ResourceTemplate("test://template", "test", "test", null, null, null)))
.isInstanceOf(UnsupportedOperationException.class);
})
.verifyComplete();

4
mcp-test/src/main/java/io/modelcontextprotocol/server/AbstractMcpAsyncServerTests.java
View file

@ -302,7 +302,7 @@ public abstract class AbstractMcpAsyncServerTests {
.serverInfo("test-server", "1.0.0")
.build();
Prompt prompt = new Prompt(TEST_PROMPT_NAME, "Test Prompt", List.of());
Prompt prompt = new Prompt(TEST_PROMPT_NAME, "Test Prompt", "Test Prompt", List.of());
McpServerFeatures.AsyncPromptSpecification specification = new McpServerFeatures.AsyncPromptSpecification(
prompt, (exchange, req) -> Mono.just(new GetPromptResult("Test prompt description", List
.of(new PromptMessage(McpSchema.Role.ASSISTANT, new McpSchema.TextContent("Test content"))))));
@ -330,7 +330,7 @@ public abstract class AbstractMcpAsyncServerTests {
void testRemovePrompt() {
String TEST_PROMPT_NAME_TO_REMOVE = "TEST_PROMPT_NAME678";
Prompt prompt = new Prompt(TEST_PROMPT_NAME_TO_REMOVE, "Test Prompt", List.of());
Prompt prompt = new Prompt(TEST_PROMPT_NAME_TO_REMOVE, "Test Prompt", "Test Prompt", List.of());
McpServerFeatures.AsyncPromptSpecification specification = new McpServerFeatures.AsyncPromptSpecification(
prompt, (exchange, req) -> Mono.just(new GetPromptResult("Test prompt description", List
.of(new PromptMessage(McpSchema.Role.ASSISTANT, new McpSchema.TextContent("Test content"))))));

4
mcp-test/src/main/java/io/modelcontextprotocol/server/AbstractMcpSyncServerTests.java
View file

@ -289,7 +289,7 @@ public abstract class AbstractMcpSyncServerTests {
.serverInfo("test-server", "1.0.0")
.build();
Prompt prompt = new Prompt(TEST_PROMPT_NAME, "Test Prompt", List.of());
Prompt prompt = new Prompt(TEST_PROMPT_NAME, "Test Prompt", "Test Prompt", List.of());
McpServerFeatures.SyncPromptSpecification specification = new McpServerFeatures.SyncPromptSpecification(prompt,
(exchange, req) -> new GetPromptResult("Test prompt description", List
.of(new PromptMessage(McpSchema.Role.ASSISTANT, new McpSchema.TextContent("Test content")))));
@ -310,7 +310,7 @@ public abstract class AbstractMcpSyncServerTests {
@Test
void testRemovePrompt() {
Prompt prompt = new Prompt(TEST_PROMPT_NAME, "Test Prompt", List.of());
Prompt prompt = new Prompt(TEST_PROMPT_NAME, "Test Prompt", "Test Prompt", List.of());
McpServerFeatures.SyncPromptSpecification specification = new McpServerFeatures.SyncPromptSpecification(prompt,
(exchange, req) -> new GetPromptResult("Test prompt description", List
.of(new PromptMessage(McpSchema.Role.ASSISTANT, new McpSchema.TextContent("Test content")))));