think-first

by Clybor Consulting · ★ 0 · updated 4 days ago

Makes Claude run a sequential-thinking step before its first write in each request, and again before retrying a tool call that just failed. Uses the sequential-thinking server you already run, so the check also works inside cloud Cowork tasks.

install think-first

Install

git clone https://github.com/shawnclybor/think-first

claude --plugin-dir ./think-first

Then run /reload-plugins or start a new session. Requires Claude Code 2.1.287+.

View source on GitHub

What it hooks into

From an automated scan with claude plugin validate, not a security review. Mods run with your permissions; read the code before installing.

Events: prompt.submittool.call
API calls: $.env.get$.env.set
Can see: every promptevery tool call
Reach: level 2 of 3 sets env varsreads env vars

Origin

How it got here: Automated scan of public GitHub repos, via the CC0 dataset awesome-claude-code-mods (scan of 11 Oct 2026).
Repository: github.com/shawnclybor/think-first
Path in repo: repository root
Source commit: 822baf5 the exact code the scan read
Author: Clybor Consulting @shawnclybor
License: MIT
First published: 6 Oct 2026
Last pushed: 7 Oct 2026
First listed here: 12 Oct 2026

Name and description come from the mod's own manifest. We link to the code; we don't host it, and it stays under its author's license.