One Config, All AI Tools Remember You

01#

I’m not the only one with this problem.

On Hacker News, a developer’s rant got hundreds of upvotes:

“I use Claude for some tasks, Cursor for coding, and ChatGPT for research. The problem is, none of them know what I discussed with the other tools. I find myself constantly re-explaining the same context.”

Another developer put it more bluntly:

“Four vendors, four separate conversation histories. They don’t talk to each other. Switching vendors means starting from scratch.”

Have you ever done the math?

10 minutes of re-explaining every day, that’s 5 hours a month, 60 hours a year.

That time could be spent writing code, building products, or being with family.

02#

I found the root cause.

First, fragmented rule files.

CLAUDE.md, .cursorrules, GEMINI.md, .windsurfrules…

For the same project, you have to maintain 5-6 rule files.

Update one, forget to sync the others, and the AI starts “hallucinating.”

Second, memory locked to tools.

The context you build in Claude Code? Gone when you switch to Cursor.

Your preferences on your work computer? Gone when you open your laptop at home.

Third, session boundaries kill everything.

Every new conversation, the AI starts from zero.

All those architectural decisions, code styles, module relationships you explained? All reset.

03#

So I built a tool called ContextSync.

It solves one core problem:

One config, all AI coding tools remember you.

The principle is simple:

You maintain one unified rule file at ~/.contextsync/rules.md.

ContextSync automatically compiles and syncs it to:

• CLAUDE.md
• .cursorrules
• GEMINI.md
• .windsurfrules
• AGENTS.md
• .github/copilot-instructions.md

You change once, everything updates.

04#

After using it for a month, here are the key benefits I’ve found:

Benefit 1: Save time.

No more re-explaining project background in every tool.

What Claude Code knows, Cursor knows too.

Benefit 2: Lower switching costs.

Switch from Cursor to Windsurf, context migrates seamlessly.

No more giving up on tool switching because of “re-explaining.”

Benefit 3: Smoother team collaboration.

The team shares the same project memory.

New person joins? One-click sync, no hand-holding needed.

05#

ContextSync currently supports these tools:

Limited spots—only 20 left.

Beta perk: Join the beta and share your feedback, get one month of Pro free ($9 value).

Let’s actually connect your team’s AI memory.

If you want all AI tools to “know” you.

If you want to reclaim those 60 hours of repeated explanations.

Add WeChat (dao24dao) — spots are first come, first served.

This article was first published on WeChat: View Original