update_template

Instructions

Implementation Reference

• src/index.ts:822-842 (handler)

  Main handler function for 'update_template' tool. Processes input arguments, constructs updates object, calls template service to update, handles errors, and formats MCP response.

  private async handleUpdateTemplate(args: any) {
    const updates: any = {};
    if (args.name) updates.name = args.name;
    if (args.description) updates.description = args.description;
    if (args.text) updates.content = { text: args.text };
    if (args.variables) updates.variables = args.variables;
  
    const updated = await templateService.updateTemplate(args.templateId, updates);
    if (!updated) {
      throw new Error(`Template ${args.templateId} not found`);
    }
  
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(updated, null, 2)
        }
      ]
    };
  }

• src/index.ts:278-292 (schema)

  Input schema/JSON Schema for validating parameters of the update_template tool.

  inputSchema: {
    type: 'object',
    properties: {
      templateId: { type: 'string', description: 'Template ID' },
      name: { type: 'string', description: 'New name' },
      description: { type: 'string', description: 'New description' },
      text: { type: 'string', description: 'New text' },
      variables: {
        type: 'array',
        items: { type: 'string' },
        description: 'New variables list'
      }
    },
    required: ['templateId']
  }

• src/index.ts:275-293 (registration)

  Tool definition object in the static 'tools' array returned by ListTools handler, registering name, description, and schema.

  {
    name: 'update_template',
    description: 'Update an existing template',
    inputSchema: {
      type: 'object',
      properties: {
        templateId: { type: 'string', description: 'Template ID' },
        name: { type: 'string', description: 'New name' },
        description: { type: 'string', description: 'New description' },
        text: { type: 'string', description: 'New text' },
        variables: {
          type: 'array',
          items: { type: 'string' },
          description: 'New variables list'
        }
      },
      required: ['templateId']
    }
  },

• src/index.ts:518-519 (registration)

  Dispatch registration in the CallTool request handler switch statement, routing 'update_template' calls to the specific handler method.

  case 'update_template':
    return await this.handleUpdateTemplate(args);

• src/services/template-service.ts:159-173 (helper)

  Supporting service method implementing the core template update logic: retrieves, merges updates, persists to storage, returns updated template.

  async updateTemplate(id: string, updates: Partial<MessageTemplate>): Promise<MessageTemplate | null> {
    const template = this.templates.get(id);
    if (!template) return null;
  
    const updatedTemplate = {
      ...template,
      ...updates,
      id, // Preserve ID
      updatedAt: new Date()
    };
  
    this.templates.set(id, updatedTemplate);
    await this.saveCustomTemplates();
    return updatedTemplate;
  }