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Title: feat(server): tool call support context by taobaorun · Pull Request #172 · modelcontextprotocol/java-sdk · GitHub

Open Graph Title: feat(server): tool call support context by taobaorun · Pull Request #172 · modelcontextprotocol/java-sdk

X Title: feat(server): tool call support context by taobaorun · Pull Request #172 · modelcontextprotocol/java-sdk

Description: Motivation and Context Current call tool flow can't get some information about the request.for example the header value handle with context (map) context has the current original request. e.g. ServerRequest has the current sessionId if has the context,the tool method can get more information. @Tool(description = "Get the current date and time in the user's timezone") String getCurrentDateTime(@ToolParam(required = false) ToolContext context) { context.getContext().get("sessionId") return LocalDateTime.now().atZone(LocaleContextHolder.getTimeZone().toZoneId()).toString(); } public class RequestContext { /** * the original request object */ private Object request; private final Map context; public RequestContext(Map context) { this.context = Collections.unmodifiableMap(context); } public Map getContext() { return context; } public Object getRequest() { return request; } public void setRequest(Object request) { this.request = request; } } How Has This Been Tested? Worked in the real application Breaking Changes SyncToolSpecification AsyncToolSpecification definition with the context the request record wrapper the params and context /** * @param params the parameters of the request. * @param context the request context */ public record McpRequest(Object params, RequestContext context) { } //before new McpServerFeatures.SyncToolSpecification(tool, (exchange, params) -> { ... }); //after new McpServerFeatures.SyncToolSpecification(tool, (exchange, request) -> { ... }); Types of changes Bug fix (non-breaking change which fixes an issue) New feature (non-breaking change which adds functionality) Breaking change (fix or feature that would cause existing functionality to change) Documentation update Checklist I have read the MCP Documentation My code follows the repository's style guidelines New and existing tests pass locally I have added appropriate error handling I have added or updated documentation as needed Additional context

Open Graph Description: Motivation and Context Current call tool flow can't get some information about the request.for example the header value handle with context (map) context has the current original request. e....

X Description: Motivation and Context Current call tool flow can't get some information about the request.for example the header value handle with context (map) context has the current original request...

Opengraph URL: https://github.com/modelcontextprotocol/java-sdk/pull/172

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