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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/handlers-workflow-diff.js vendored
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@@ -55,7 +55,7 @@ const NODE_TARGETING_OPERATIONS = new Set([
]);
const workflowDiffSchema = zod_1.z.object({
id: zod_1.z.string(),
operations: zod_1.z.array(zod_1.z.object({
operations: zod_1.z.preprocess(handlers_n8n_manager_1.tryParseJson, zod_1.z.array(zod_1.z.object({
type: zod_1.z.string(),
description: zod_1.z.string().optional(),
node: zod_1.z.any().optional(),
@@ -93,7 +93,7 @@ const workflowDiffSchema = zod_1.z.object({
}
}
return op;
})),
}))),
validateOnly: zod_1.z.boolean().optional(),
continueOnError: zod_1.z.boolean().optional(),
createBackup: zod_1.z.boolean().optional(),