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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { DiscoveredMCPPrompt } from '../tools/mcp-client.js';
export class PromptRegistry {
private prompts: Map<string, DiscoveredMCPPrompt> = new Map();
/**
* Registers a prompt definition.
* @param prompt - The prompt object containing schema and execution logic.
*/
registerPrompt(prompt: DiscoveredMCPPrompt): void {
if (this.prompts.has(prompt.name)) {
const newName = `${prompt.serverName}_${prompt.name}`;
console.warn(
`Prompt with name "${prompt.name}" is already registered. Renaming to "${newName}".`,
);
this.prompts.set(newName, { ...prompt, name: newName });
} else {
this.prompts.set(prompt.name, prompt);
}
}
/**
* Returns an array of all registered and discovered prompt instances.
*/
getAllPrompts(): DiscoveredMCPPrompt[] {
return Array.from(this.prompts.values()).sort((a, b) =>
a.name.localeCompare(b.name),
);
}
/**
* Get the definition of a specific prompt.
*/
getPrompt(name: string): DiscoveredMCPPrompt | undefined {
return this.prompts.get(name);
}
/**
* Returns an array of prompts registered from a specific MCP server.
*/
getPromptsByServer(serverName: string): DiscoveredMCPPrompt[] {
const serverPrompts: DiscoveredMCPPrompt[] = [];
for (const prompt of this.prompts.values()) {
if (prompt.serverName === serverName) {
serverPrompts.push(prompt);
}
}
return serverPrompts.sort((a, b) => a.name.localeCompare(b.name));
}
/**
* Clears all the prompts from the registry.
*/
clear(): void {
this.prompts.clear();
}
/**
* Removes all prompts from a specific server.
*/
removePromptsByServer(serverName: string): void {
for (const [name, prompt] of this.prompts.entries()) {
if (prompt.serverName === serverName) {
this.prompts.delete(name);
}
}
}
}
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