Without understanding project structure, the AI reads 25 files to answer a 3-file question. Wasted context, wasted cost, wrong edit.
Codebase Context
Your AI knows the whole project, not just the file you asked about.
Most AI tools grep around the repo. Mulu maps the codebase first, ranks the files that matter, and understands what could break before it edits or verifies anything.
Screenshot placeholder: live codebase map showing ranked files, connected dependencies, and real-time relevance scores updating as you work.
The problem
Most AI tools are still flying blind.
Without a map, the AI searches random files, misses connections, and tests the wrong thing.
Change one function and something breaks elsewhere — because the AI had no idea those two things were linked. You find out after the fact.
Reviewing, correcting, and integrating AI suggestions takes more time than expected — especially as the codebase grows.
How Mulu solves it
Map first, then edit.
Mulu reads everything before it changes anything — so the whole build and verify loop starts from knowledge, not guessing.
Screenshot placeholder: ranked context panel showing top 3 files auto-selected (processPayment.ts, createOrder.ts, payment.test.ts) with relevance, dependency, and test-link signal bars.
The right files, automatically found
Mulu reads your entire project when you open it. Every file, every connection, every relationship — mapped before your first question. The build and verify flow both start from knowledge, not guessing.
Screenshot placeholder: impact preview panel showing a dependency tree for processPayment() with callers, dependents, and affected tests highlighted before the edit starts.
See what else could break
Before a single line changes, see every connected file, every caller, and every test that needs rechecking. The agent knows the full scope before it starts — and so do you.
Screenshot placeholder: live map status panel showing files updating in real time as saves happen, with green "Updated" and grey "Current" status indicators.
Always current
Other tools re-index on a schedule. Mulu updates only the files that changed — the moment you save. No refresh button, no waiting, no stale answers from a five-minute-old map.
How it works
Four steps from open to confident.
Mulu reads everything automatically — every file, every connection. No config, no setup.
Your AI already has the relevant context loaded. No file-picking, no "please read this first."
Before anything changes, review what else is connected and every test that covers it.
No more broken surprises. Your AI works from the complete truth of your project.
Common questions
Does this slow down my editor?
Not at all. Mulu runs all indexing in a separate background process. When you save a file, only that file is updated — not the whole project. It's fast enough you'll never notice it running.
How is this different from what Cursor or Copilot do?
Most AI coding tools search for relevant files when you ask a question — like typing into a search engine and hoping the right result appears. Mulu knows the structure of your project up front, so it doesn't need to search. It already understands how your files connect and what depends on what.
Does it work on large projects?
Yes. Mulu is built specifically for projects that have grown past the point where manually choosing context is practical. The larger your project, the more valuable automatic context becomes.
Why does better context mean cheaper AI usage?
Every token sent to an AI costs money. Tools without good context management often over-send, dumping whole directories just to make sure the AI has what it needs. Mulu sends only what's actually relevant, so your credits go further and answers come back better.
Which languages and frameworks does it support?
Mulu supports all major languages: JavaScript, TypeScript, Python, Go, Rust, Ruby, and more. It understands imports, exports, function calls, and test files regardless of the framework you're using.
Your AI should know your project as well as you do.
Automatic context. Impact preview. Always current. Build without the guesswork.
Try Mulu