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fix: raise session timeout default, fix VS Code MCP compatibility (#674)

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* fix: raise session timeout default and fix VS Code MCP compatibility (#626, #600, #611)

- #626: Raise SESSION_TIMEOUT_MINUTES default from 5 to 30 minutes.
  Complex editing sessions easily exceed 5 min between LLM calls.

- #600: Add z.preprocess(tryParseJson, ...) to operations parameter
  in n8n_update_partial_workflow. VS Code extension sends arrays as
  JSON strings.

- #611: Strip undefined values from tool args via JSON round-trip
  before Zod validation. VS Code sends explicit undefined which
  Zod's .optional() rejects.

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

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: deduplicate tryParseJson — export from handlers-n8n-manager

tryParseJson was duplicated in handlers-workflow-diff.ts. Now imported
from handlers-n8n-manager.ts where it was already defined. Updated
test mock to use importOriginal so the real function is available.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Romuald Członkowski
2026-03-27 18:56:30 +01:00
committed by GitHub
parent fb2d306dc3
commit 6e4a9d520d
9 changed files with 42 additions and 20 deletions
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7
src/http-server-single-session.ts
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@@ -107,11 +107,10 @@ export class SingleSessionHTTPServer {
private session: Session | null = null; // Keep for SSE compatibility
private consoleManager = new ConsoleManager();
private expressServer: any;
// Session timeout reduced from 30 minutes to 5 minutes for faster cleanup
// Configurable via SESSION_TIMEOUT_MINUTES environment variable
// This prevents memory buildup from stale sessions
// Session timeout — configurable via SESSION_TIMEOUT_MINUTES environment variable
// Default 30 minutes: balances memory cleanup with real editing sessions (#626)
private sessionTimeout = parseInt(
process.env.SESSION_TIMEOUT_MINUTES || '5', 10
process.env.SESSION_TIMEOUT_MINUTES || '30', 10
) * 60 * 1000;
private authToken: string | null = null;
private cleanupTimer: NodeJS.Timeout | null = null;