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feat: add n8n_generate_workflow tool for hosted workflow generation

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Add new MCP tool that enables AI-powered workflow generation from natural
language descriptions. Uses handler delegation pattern — hosting environments
inject a GenerateWorkflowHandler via EngineOptions, self-hosted instances
receive a hosted-only informational response.

Handler flows through N8NMCPEngine → SingleSessionHTTPServer →
N8NDocumentationMCPServer with helpers for createWorkflow, validateWorkflow,
autofixWorkflow, and getWorkflow.

Includes full tool documentation, tests, and corrected tools overview count.

Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
czlonkowski
2026-03-31 12:32:31 +02:00
parent 3417c6701c
commit 198e773bb3
81 changed files with 784 additions and 177 deletions
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4
dist/mcp-engine.js vendored
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@@ -5,7 +5,9 @@ const http_server_single_session_1 = require("./http-server-single-session");
const logger_1 = require("./utils/logger");
class N8NMCPEngine {
constructor(options = {}) {
this.server = new http_server_single_session_1.SingleSessionHTTPServer();
this.server = new http_server_single_session_1.SingleSessionHTTPServer({
generateWorkflowHandler: options.generateWorkflowHandler,
});
this.startTime = new Date();
if (options.logLevel) {
process.env.LOG_LEVEL = options.logLevel;