// devtools · yvgude/lean-ctx

lean-ctx

lean-ctx é um projeto de ferramentas de desenvolvimento de código aberto de yvgude (yvgude/lean-ctx no GitHub). Tem 3.870 estrelas no GitHub e 351 forks, é publicado sob a licença Apache-2.0 e foi atualizado pela última vez no GitHub em 8 de outubro de 2026.

LeanCTX — the Rust context gateway that controls what your AI coding tools can see.

★ 3,9 mil estrelas⑂ 351 forksApache-2.0atualizado out 2026
▦ visual: o README deste projeto não inclui nenhuma captura incorporável,
então aqui vai um marcador. O guia abaixo está completo mesmo assim.
// dados do projeto

Dados do projeto

Repositório
yvgude/lean-ctx
Estrelas no GitHub
3.870
Forks
351
Licença
Apache-2.0
Última atualização no GitHub
8 de outubro de 2026
Tipo de ficha
Guia de instalação completo
Site oficial
Official site
// como funciona

Como funciona

  1. Clarify your goal

    Decide the first concrete outcome you want from it, so you can pick the right example, template or mode instead of exploring everything at once.

  2. Get the project

    Clone the repository (or install the published package) and skim its README quick start for the requirements for your platform.

  3. Install and configure

    Run the documented install step and set any required configuration — such as provider keys, data sources or local services — before the first run.

  4. Run your first task

    Execute the smallest documented example end to end, confirm the output is what you expected, then adapt it to your real data or workflow.

// recursos

Por que as pessoas gostam tanto

Context compression

16 read modes (full, map, signatures, diff, density and more), 85+ shell-output compression patterns and cached re-reads that return compact references.

Intelligent triage

An IntentEngine classifies query complexity and a ModePredictor learns the best read mode per file type, so simple lookups stay cheap.

Knowledge routing

Session memory, a temporal knowledge graph and a property graph of imports/calls/exports power impact analysis and search ranking.

Controls and governance

Configured path permissions, content filters and context budgets applied before delivery, with per-agent budgets and throttling profiles.

Cost intelligence

Local token/cost tracking, Shadow Mode savings estimates and CPAO (cost per accepted outcome) reporting via lean-ctx savings.

Inspectable proof

ctx_proof / ctx_verify export an audit trail of sources, policy decisions and pipeline provenance.

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// execute você mesmo

Execute você mesmo

  1. Clone the repository

    Get the source so you can inspect, configure and run it locally.

    git clone https://github.com/yvgude/lean-ctx.git
    cd lean-ctx
  2. Set up your AI tool integration

    After installing LeanCTX (see the README install matrix for your platform), configure a supported integration.

    lean-ctx setup  # see README for the exact install command for your platform
  3. Track value

    Enable Shadow Mode, work normally, then check what LeanCTX saved.

    lean-ctx config set shadow.enabled true
    lean-ctx savings
// casos de uso

O que você pode criar

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// perguntas frequentes

Perguntas frequentes

Who maintains lean-ctx?

It is maintained by yvgude on GitHub (yvgude/lean-ctx), where the source, issues and releases live.

Is it free to use?

Yes — it is free and open source under Apache-2.0, which permits use, modification and commercial redistribution, with licence/notice retention.

Does it need a paid API key?

No LLM API key of its own — LeanCTX prepares context locally; your existing AI tool keeps using its own model and key.

How does it compare to raw MCP filesystem servers or manual context stuffing?

Compared with raw MCP filesystem servers or manual context stuffing, lean-ctx's distinguishing focus is: leanCTX — the Rust context gateway that controls what your AI coding tools can see. Pick it when that focus matches your need; the alternative may suit you better if its broader or different scope is the priority.

How do I get started?

Clone https://github.com/yvgude/lean-ctx (or install its published package), follow the README quick start to install and configure it, then run the smallest documented example — the Run section on this page mirrors those steps.

// continue explorando

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// alternativas

Alternativas em Ferramentas de desenvolvimento

Os outros projetos de Ferramentas de desenvolvimento com mais estrelas no catálogo do LibreAI — a lista realista de alternativas se lean-ctx não for o ideal para você.

// mais em devtools

Mais em Ferramentas de desenvolvimento

Projetos de Ferramentas de desenvolvimento próximos no catálogo, os mais próximos em estrelas de lean-ctx: continue explorando dos dois lados dele.

Baixe o lean-ctx

Grátis e aberto: pegue o código-fonte, dê uma estrela no repositório e comece a criar.