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feat: add optional fields parameter to search_templates tool

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- Added fields parameter to filter response fields in search_templates
- Reduces response size by 70-98% when using selective fields
- Maintains backward compatibility with optional parameter
- Supports all template fields: id, name, description, author, nodes, views, created, url, metadata
- Updated tool documentation with examples

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
2025-09-15 23:46:33 +02:00
parent a7a6d64931
commit abc226f111
10 changed files with 76 additions and 2339 deletions
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2
README.md
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@@ -2,7 +2,7 @@
[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
[![GitHub stars](https://img.shields.io/github/stars/czlonkowski/n8n-mcp?style=social)](https://github.com/czlonkowski/n8n-mcp)
[![Version](https://img.shields.io/badge/version-2.11.0-blue.svg)](https://github.com/czlonkowski/n8n-mcp)
[![Version](https://img.shields.io/badge/version-2.11.1-blue.svg)](https://github.com/czlonkowski/n8n-mcp)
[![npm version](https://img.shields.io/npm/v/n8n-mcp.svg)](https://www.npmjs.com/package/n8n-mcp)
[![codecov](https://codecov.io/gh/czlonkowski/n8n-mcp/graph/badge.svg?token=YOUR_TOKEN)](https://codecov.io/gh/czlonkowski/n8n-mcp)
[![Tests](https://img.shields.io/badge/tests-1728%20passing-brightgreen.svg)](https://github.com/czlonkowski/n8n-mcp/actions)

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16
docs/CHANGELOG.md
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@@ -7,6 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [Unreleased]
## [2.11.1] - 2025-09-15
### Added
- **Optional Fields Parameter for search_templates**: Enhanced search_templates tool with field filtering capability
- New optional `fields` parameter accepts an array of field names to include in response
- Supported fields: 'id', 'name', 'description', 'author', 'nodes', 'views', 'created', 'url', 'metadata'
- Reduces response size by 70-98% when requesting only specific fields (e.g., just id and name)
- Maintains full backward compatibility - existing calls without fields parameter work unchanged
- Example: `search_templates({query: "slack", fields: ["id", "name"]})` returns minimal data
- Significantly improves AI agent performance by reducing token usage
### Added
- **Fuzzy Node Type Matching for Templates**: Improved template discovery with flexible node type resolution
- Templates can now be found using simple node names: `["slack"]` instead of `["n8n-nodes-base.slack"]`
@@ -1286,6 +1297,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Basic n8n and MCP integration
- Core workflow automation features
[2.11.1]: https://github.com/czlonkowski/n8n-mcp/compare/v2.11.0...v2.11.1
[2.11.0]: https://github.com/czlonkowski/n8n-mcp/compare/v2.10.9...v2.11.0
[2.10.9]: https://github.com/czlonkowski/n8n-mcp/compare/v2.10.8...v2.10.9
[2.10.8]: https://github.com/czlonkowski/n8n-mcp/compare/v2.10.5...v2.10.8
[2.10.5]: https://github.com/czlonkowski/n8n-mcp/compare/v2.10.4...v2.10.5
[2.10.4]: https://github.com/czlonkowski/n8n-mcp/compare/v2.10.3...v2.10.4
[2.10.3]: https://github.com/czlonkowski/n8n-mcp/compare/v2.10.2...v2.10.3
[2.10.2]: https://github.com/czlonkowski/n8n-mcp/compare/v2.10.1...v2.10.2

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2
package.json
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@@ -1,6 +1,6 @@
{
"name": "n8n-mcp",
"version": "2.11.0",
"version": "2.11.1",
"description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
"main": "dist/index.js",
"bin": {

7
src/mcp/server.ts
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@@ -746,7 +746,8 @@ export class N8NDocumentationMCPServer {
this.validateToolParams(name, args, ['query']);
const searchLimit = Math.min(Math.max(Number(args.limit) || 20, 1), 100);
const searchOffset = Math.max(Number(args.offset) || 0, 0);
return this.searchTemplates(args.query, searchLimit, searchOffset);
const searchFields = args.fields as string[] | undefined;
return this.searchTemplates(args.query, searchLimit, searchOffset, searchFields);
case 'get_templates_for_task':
this.validateToolParams(name, args, ['task']);
const taskLimit = Math.min(Math.max(Number(args.limit) || 10, 1), 100);
@@ -2399,11 +2400,11 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
};
}
private async searchTemplates(query: string, limit: number = 20, offset: number = 0): Promise<any> {
private async searchTemplates(query: string, limit: number = 20, offset: number = 0, fields?: string[]): Promise<any> {
await this.ensureInitialized();
if (!this.templateService) throw new Error('Template service not initialized');
const result = await this.templateService.searchTemplates(query, limit, offset);
const result = await this.templateService.searchTemplates(query, limit, offset, fields);
if (result.items.length === 0 && offset === 0) {
return {

16
src/mcp/tool-docs/templates/search-templates.ts
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@@ -5,13 +5,14 @@ export const searchTemplatesDoc: ToolDocumentation = {
category: 'templates',
essentials: {
description: 'Search templates by name/description keywords. NOT for node types! For nodes use list_node_templates. Example: "chatbot".',
keyParameters: ['query', 'limit'],
example: 'search_templates({query: "chatbot"})',
keyParameters: ['query', 'limit', 'fields'],
example: 'search_templates({query: "chatbot", fields: ["id", "name"]})',
performance: 'Fast (<100ms) - FTS5 full-text search',
tips: [
'Searches template names and descriptions, NOT node types',
'Use keywords like "automation", "sync", "notification"',
'For node-specific search, use list_node_templates instead'
'For node-specific search, use list_node_templates instead',
'Use fields parameter to get only specific data (reduces response by 70-90%)'
]
},
full: {
@@ -22,6 +23,11 @@ export const searchTemplatesDoc: ToolDocumentation = {
required: true,
description: 'Search query for template names/descriptions. NOT for node types! Examples: "chatbot", "automation", "social media", "webhook". For node-based search use list_node_templates instead.'
},
fields: {
type: 'array',
required: false,
description: 'Fields to include in response. Options: "id", "name", "description", "author", "nodes", "views", "created", "url", "metadata". Default: all fields. Example: ["id", "name"] for minimal response.'
},
limit: {
type: 'number',
required: false,
@@ -47,7 +53,9 @@ export const searchTemplatesDoc: ToolDocumentation = {
'search_templates({query: "email notification"}) - Find email alert workflows',
'search_templates({query: "data sync"}) - Find data synchronization workflows',
'search_templates({query: "webhook automation", limit: 30}) - Find webhook-based automations',
'search_templates({query: "social media scheduler"}) - Find social posting workflows'
'search_templates({query: "social media scheduler"}) - Find social posting workflows',
'search_templates({query: "slack", fields: ["id", "name"]}) - Get only IDs and names of Slack templates',
'search_templates({query: "automation", fields: ["id", "name", "description"]}) - Get minimal info for automation templates'
],
useCases: [
'Find workflows by business purpose',

8
src/mcp/tools.ts
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@@ -414,6 +414,14 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
type: 'string',
description: 'Search keyword as string. Example: "chatbot"',
},
fields: {
type: 'array',
items: {
type: 'string',
enum: ['id', 'name', 'description', 'author', 'nodes', 'views', 'created', 'url', 'metadata'],
},
description: 'Fields to include in response. Default: all fields. Example: ["id", "name"] for minimal response.',
},
limit: {
type: 'number',
description: 'Maximum number of results. Default 20.',

29
src/templates/template-service.ts
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@@ -55,6 +55,9 @@ export interface TemplateMinimal {
};
}
export type TemplateField = 'id' | 'name' | 'description' | 'author' | 'nodes' | 'views' | 'created' | 'url' | 'metadata';
export type PartialTemplateInfo = Partial<TemplateInfo>;
export class TemplateService {
private repository: TemplateRepository;
@@ -124,12 +127,17 @@ export class TemplateService {
/**
* Search templates by query
*/
async searchTemplates(query: string, limit: number = 20, offset: number = 0): Promise<PaginatedResponse<TemplateInfo>> {
async searchTemplates(query: string, limit: number = 20, offset: number = 0, fields?: string[]): Promise<PaginatedResponse<PartialTemplateInfo>> {
const templates = this.repository.searchTemplates(query, limit, offset);
const total = this.repository.getSearchCount(query);
// If fields are specified, filter the template info
const items = fields
? templates.map(t => this.formatTemplateWithFields(t, fields))
: templates.map(t => this.formatTemplateInfo(t));
return {
items: templates.map(this.formatTemplateInfo),
items,
total,
limit,
offset,
@@ -403,4 +411,21 @@ export class TemplateService {
return info;
}
/**
* Format template with only specified fields
*/
private formatTemplateWithFields(template: StoredTemplate, fields: string[]): PartialTemplateInfo {
const fullInfo = this.formatTemplateInfo(template);
const result: PartialTemplateInfo = {};
// Only include requested fields
for (const field of fields) {
if (field in fullInfo) {
(result as any)[field] = (fullInfo as any)[field];
}
}
return result;
}
}

2
tests/unit/services/template-service.test.ts
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@@ -683,7 +683,7 @@ describe('TemplateService', () => {
const result = await service.searchTemplates('test');
expect(result.items[0].author.verified).toBe(false);
expect(result.items[0]?.author?.verified).toBe(false);
});
});
});