Planulix: one control center for Claude Code, Cursor and Kimi

Many developers know the scenario: you are hard at work with Claude Code, Cursor or another AI coding tool, and suddenly access is blocked. Maybe it is a company policy, your geolocation, or the service simply went down. The result is the same: the project stalls, deadlines burn, and switching to manual coding in five minutes is impossible.

A developer who ran into exactly this problem built a solution: Planulix. It is not a standalone AI but a control center that brings several AI vendors together in one interface. The upshot: when one goes down, you are already working with another.

Why relying on one vendor is risky

Depending on a single service provider is a classic problem in software development. History is full of examples: an API breaks, a service gets geoblocked, a company changes its subscription policy, or the provider simply has a technical failure. If that happens to Claude Code, Cursor or Codex at a critical moment, productivity collapses instantly.

The developer loses more than a tool. They lose the project context: the entire conversation history where architectural decisions were discussed, bugs were fixed and technical questions were resolved. Switching to another service and re-explaining the project's history costs an hour of work plus lost momentum.

On top of that, different AI tools have different strengths. Claude Code is better at the architecture of large systems and refactoring. Cursor is more convenient for local fixes and for handling errors in the context of a file. Codex is stronger at generating standard template-based code. Kimi handles huge contexts and copes with analysis of complex documentation. If you are a professional developer, you want all four in your arsenal, without hopping between them like a patient being shuffled between wards each time.

How Planulix works

Planulix is a control center for multiple AI vendors. The tool lets you connect Claude Code, Cursor, Codex and Kimi in one interface and switch between them instantly, without losing project context or conversation history. The architecture rests on three pillars:

• A single context store: the entire history of code, conversations and comments lives in one place, visible to all connected AIs
• Instant switching: change vendor through a menu or a hotkey; in half a second the new AI already sees the full context
• Real-time synchronization: changes made by one AI are immediately visible to another

When one vendor is unavailable, you simply pick another from a drop-down list. Your project context stays in place, and the new AI sees the whole history, from the initial skeleton to the latest fixes and comments. You do not rewrite the task description, copy code into a new chat, or update anything. You just switch.

Four tools in one

In its first version, Planulix supports four major players in the AI coding category. Each specializes in something different:

• Claude Code: architectural decisions, refactoring of large projects, systems thinking about the design of the whole system
• Cursor: local fixes, analysis of the context of a specific file, fast work with errors and exception stacks
• Codex: generating boilerplate code, quick prototypes, coverage of standard patterns and boilerplate
• Kimi: work with very large contexts (200K+ tokens), analysis of complex documentation, deep understanding of complex domains

Instead of manually forwarding context between tools or rewriting conversation history, Planulix keeps all four in sync. You work with Claude Code on architecture, then need a local fix: one command and you are in Cursor with the full history. Then you need a quick prototype of standard code: Codex. Need to digest a large document? Kimi. No copy-pasting, no rewriting of context.

What changes for development

Multi-vendor support stops being optional and becomes a mandatory safeguard for serious teams. For teams where development downtime means lost money and missed deadlines, this is critical. If one service goes down, gets blocked or hits its quota, you lose not a single minute thanks to a ready switch to another.

For business, this means AI tools are moving from the category of a "convenient hobby" to the category of "critical development infrastructure." And as with any critical infrastructure, you need redundancy and fault tolerance.