001/*
002 * Copyright 2022-2026 Revetware LLC.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.soklet;
018
019import org.jspecify.annotations.NonNull;
020
021import javax.annotation.concurrent.ThreadSafe;
022
023/**
024 * Programmatic MCP tool handler contract.
025 *
026 * @author <a href="https://www.revetkn.com">Mark Allen</a>
027 */
028@ThreadSafe
029public interface McpToolHandler {
030        /**
031         * Provides the MCP tool name.
032         *
033         * @return the tool name
034         */
035        @NonNull
036        String getName();
037
038        /**
039         * Provides the MCP tool description.
040         *
041         * @return the tool description
042         */
043        @NonNull
044        String getDescription();
045
046        /**
047         * Provides the input schema used for framework validation and client advertisement.
048         *
049         * @return the tool input schema
050         */
051        @NonNull
052        McpSchema getInputSchema();
053
054        /**
055         * Handles an MCP {@code tools/call} request.
056         *
057         * @param context the tool handler context
058         * @return the tool result
059         * @throws Exception if the tool call fails
060         */
061        @NonNull
062        McpToolResult handle(@NonNull McpToolHandlerContext context) throws Exception;
063}