Project intelligence engine for LLM

Brainlet learns your project — how it's structured, how the pieces connect, how changes propagate — and gives any LLM deep understanding on demand.

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Brainlet launch

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How it works
What is CAG? → Benchmark results publish June 2026.

01 The problem

Every AI coding tool has the same blind spot

api/billing core/plan worker dashboard
01

They don't understand the project. They retrieve files and ask the model to infer the system from whatever context was found. Different names — RAG, context engine, codebase search — same fundamental limitation.

02

Developers lose trust because the tools make architecture mistakes, duplicate existing patterns, break conventions they don't know about, and keep burning tokens re-reading files without ever finding the right context.

03

AI-generated code is moving from autocomplete into production workflows, but teams still carry the review burden when the tool cannot read the project like an engineer.

04

The tools are getting faster. They're not getting smarter.

02 The proof

Same prompt. Same model. Different reality.

What your AI does with the same task — when it has retrieved chunks, and when it has computed project intelligence.

without brainlet claude · raw retrieval

searching codebase…

found 4 files matching "billing"

renamed plan to annual_plan in billing.rs

updated BillingPlan struct definition

updated billing query in api/routes.rs

possible unused import in worker.rs

ships → breaks payment flow in production.

✕ shipped blind 128ms
with brainlet claude + cag context

querying project intelligence…

14 files · 6 flows · 3 conventions

updated all 14 references across api, worker, and dashboard.

routed through idempotency_guard. retries are safe.

reused worker/cycle.rs. no duplicate payment path.

followed command-handler pattern. matches existing mutations.

ships → review passes → done.

✓ ready cag · local

03 How it works

RAG retrieves. CAG cognizes.

Most AI tools paste retrieved text into context and let the model figure out your project. Brainlet learns it once and serves the answers.

RAG: retrieves files, lets the model infer the system. main.rs your codebase embed chunk → vectors vector store no relationships between chunks top-k chunks no confidence, no importance ranking any LLM must figure out conventions, architecture, risk by itself OUTPUT: BEST-EFFORT ANSWER accuracy depends on the model CAG: parses files into a graph, serves computed intelligence. main.rs your codebase index + learn code structure patterns project intelligence structured · connected · scored serve on demand facts with confidence scores brainlet.review cag ▸ IMPACT 14 files · 3 layers ▸ PATTERN command handlers ▸ RISK 2 paths bypass guard ✓ ready cag · local any LLM doesn't extract — reasons over structured evidence ▸ IMPACT ▸ PATTERN ▸ RISK OUTPUT: PRECISE ANSWER · LESS COMPUTE accuracy depends on the engine

That's not an incremental improvement. That's a fundamentally different architecture.

04 What your AI gets

Eight questions Brainlet answers — before your LLM even asks.

Your AI calls these like a teammate would call a senior engineer.

01

Architecture

How is the system organized?

02

Dependencies

What depends on what?

03

Impact

What does this change touch?

04

Conventions

What's the project's pattern?

05

Data flow

Where does this data go?

06

Constraints

What can't this code do?

07

Similarity

Is this already in the codebase?

08

Risk

Where's the hidden failure?

05 Launch

Context beats compute.

Every missing bit of context becomes another paid prompt, retry, or manual review loop. Brainlet shifts the advantage from raw model size to project-specific context.

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06 FAQ

Clear facts for developers.

What is Brainlet?

Brainlet is a local-first project intelligence engine for software codebases. It builds a computed understanding layer that LLMs can query before they write, review, or explain code.

What is Cognitive Augmented Generation?

Cognitive Augmented Generation, or CAG, is Brainlet's architecture for giving an LLM computed project intelligence instead of raw retrieved file chunks.

Does Brainlet send code to the cloud?

Brainlet is designed to run locally on a developer machine or company server, so project indexing and intelligence generation happen where the code already lives.

Which LLMs can use Brainlet?

Brainlet is model-agnostic. Teams can connect open-source local models, mid-tier hosted models, or frontier models depending on their policy and workflow.

What is Brainlet's current product status?

Brainlet is launching project-aware PR review as its first product. Public benchmark results are planned for June 2026.