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.annotation;
018
019import com.soklet.McpProtocolVersion;
020import org.jspecify.annotations.NonNull;
021
022import java.lang.annotation.ElementType;
023import java.lang.annotation.Retention;
024import java.lang.annotation.RetentionPolicy;
025import java.lang.annotation.Target;
026
027/**
028 * Attaches an argument completer to a prompt declared in the same MCP endpoint.
029 * The named prompt must have an {@link McpPrompt} handler method.
030 * Completion supports MCP 2025-06-18, 2025-11-25, and 2026-07-28. The
031 * completer's revisions must be a nonempty subset of the target prompt's
032 * revisions.
033 *
034 * @author <a href="https://www.revetkn.com">Mark Allen</a>
035 */
036@Target(ElementType.METHOD)
037@Retention(RetentionPolicy.RUNTIME)
038public @interface McpPromptCompletion {
039        /** @return the required exact MCP revisions handled by this completer */
040        @NonNull
041        McpProtocolVersion @NonNull [] protocolVersions();
042        /** @return the target prompt's published name */
043        @NonNull
044        String name();
045}