Does Sequentialthinking (reference) work with Claude Desktop?

Yes. Sequentialthinking (reference) passed every step of our test in Claude Desktop on Oct 14, 2026: it installed, connected, its tools were visible, and an agent used it to finish a real task.

Result

ResultPassed
Date testedOct 14, 2026
Plan tested onNot recorded for this run
App versionClaude Desktop 2.37337.1 (Linux beta)

Steps

  1. install OK
  2. connected OK
  3. tools visible OK
  4. agent task: stepwise reasoning OKfor reasoning scratchpads that have no storage

Test note: server wrapped in harness/scripts/mcp_tee.py to record JSON-RPC; prompts typed via xdotool; tool Allow pop-ups approved by the operator for test servers only; model = app default

From our own harness run, not the maker’s claims. How we test.

What happened in this run

Install config we used

{
 "command": "npx",
 "args": [
  "-y",
  "@modelcontextprotocol/server-sequential-thinking"
 ]
}

Connection check

initialize seen in tee log after app restart

Tools check

tools/list answered (tee log)

Agent task: stepwise reasoning

  • 3 calls reached the server
  • Agent’s answer (excerpt): The train arrives at 17:25.

Raw details from our harness log for this run. Secrets redacted.

Set it up in Claude Desktop

Copy-paste config for every app is on the Sequentialthinking (reference) page. Not connecting? Claude Desktop MCP troubleshooting.

Other apps we tested it in: Claude Code (passed) · Cursor (passed) · ChatGPT (Codex) (passed).

All MCP servers tested in Claude Desktop

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