# LeanCTX — Marketing & Submission Copy

Single source of truth for outbound copy across launch channels, directories, and
package registries. Keep every channel below in sync with this file when the
positioning changes.

> **Narrative:** LeanCTX is **the Context OS for AI Development** — it governs every
> token between your code and the model across four dimensions: **Compression,
> Routing, Memory, Verification.**

---

## Naming rule (non-negotiable)

| Use | Where |
|-----|-------|
| **`LeanCTX`** (brand, capitalized) | Prose, headlines, titles, logo, SEO, store names, taglines |
| **`lean-ctx`** (lowercase) | Binary, CLI command, package names, URLs, code blocks |

Examples: "**LeanCTX** is the Context OS for AI development." · `lean-ctx setup` ·
`npm install -g lean-ctx-bin` · `cargo install lean-ctx` · `github.com/yvgude/lean-ctx`.

---

## Canonical facts (verify before every launch)

- **One local binary** (Rust), CLI-first, privacy-first, **zero telemetry**, local-first.
- **License:** Apache-2.0 · **open source.**
- **80 MCP tools**, **10 read modes**, **95+ shell compression patterns**.
- **Up to 99% token savings**; cached re-reads cost **~13 tokens**.
- **Works with 25+ AI tools** — Cursor, Claude Code, CodeBuddy, GitHub Copilot, Windsurf, OpenAI
  Codex CLI, Gemini CLI, Cline, JetBrains, VS Code, Zed, and more.
- **Three integration modes:** CLI-Redirect (zero MCP overhead), Hybrid, Full MCP.

### Links

- Website: https://leanctx.com
- Repository: https://github.com/yvgude/lean-ctx
- npm: https://www.npmjs.com/package/lean-ctx-bin
- crates.io: https://crates.io/crates/lean-ctx
- Discord: https://discord.gg/pTHkG9Hew9

---

## Taglines

- **One-liner:** The Context OS for AI Development.
- **Short:** LeanCTX governs every token between your code and the model — compress,
  route, remember, verify.
- **Medium:** Your AI coding agent wastes thousands of tokens rereading files, parsing
  noisy shell output, and losing context between sessions. LeanCTX is the operating
  system for that context: one local binary that compresses what the AI reads,
  remembers what matters across sessions, routes each read to the right fidelity, and
  verifies what comes back.

---

## The four dimensions (reusable block)

1. **Compression — input efficiency.** 10 read modes, 95+ shell patterns, tree-sitter
   AST. Cached re-reads cost ~13 tokens.
2. **Routing — the right fidelity per read.** Adaptive mode prediction and intent
   classification keep simple lookups cheap and deep reads precise.
3. **Memory — context that persists.** Session memory, a temporal knowledge graph, and
   a multi-edge code graph survive across chats.
4. **Verification — control what reaches the model.** Token dashboard, budgets/SLOs,
   and a verification engine with CI drift gates.

---

## Channel: GitHub repository description

> LeanCTX — the Context OS for AI development. One local binary that compresses,
> remembers, routes, and verifies every token between your code and the model. 68 MCP
> tools, 10 read modes, up to 99% token savings. Works with Cursor, Claude Code,
> Copilot, Windsurf, Codex, Gemini.

## Channel: npm package (`lean-ctx-bin`) description

> LeanCTX — the Context OS for AI coding agents. One local binary that compresses,
> remembers, routes, and verifies every token between your code and the model. No Rust
> required.

## Channel: crates.io (`lean-ctx`) description

> The Context OS for AI development — compress, route, remember, and verify the context
> between AI coding agents and your codebase. Single binary, CLI-first, zero telemetry.

---

## Channel: Product Hunt

- **Name:** LeanCTX
- **Tagline (≤60 chars):** The Context OS for AI development
- **Description:**

> Your AI coding agent wastes thousands of tokens rereading files, parsing noisy shell
> output, and losing context between sessions — and you have no control over it. LeanCTX
> is the operating system for that context. One local binary compresses what the AI
> reads (up to 99%), remembers what matters across sessions, routes each read to the
> right fidelity, and verifies what comes back. Works with 24+ AI tools. Apache-2.0,
> zero telemetry, local-first.

- **First comment (maker):**

> Hi PH! I built LeanCTX because my agents kept burning tokens re-reading the same
> files and forgetting everything between chats. It sits between any AI tool and your
> codebase and treats context as a managed resource across four dimensions —
> compression, routing, memory, and verification. One `lean-ctx setup` wires up your
> shell and every detected editor. Everything runs locally; zero telemetry. Would love
> your feedback.

---

## Channel: Hacker News (Show HN)

- **Title:** Show HN: LeanCTX – a Context OS for AI coding agents (Rust, local-first)
- **Body:**

> LeanCTX is an open-source context runtime that sits between AI coding agents (Cursor,
> Claude Code, Copilot, Windsurf, Codex, Gemini, …) and your codebase. It compresses
> file reads and shell output, persists session memory and a code/knowledge graph, and
> verifies outputs before they reach the model. Single Rust binary, CLI-first, zero
> telemetry, Apache-2.0. Cached re-reads cost ~13 tokens; typical sessions save ~88%.
>
> Repo: https://github.com/yvgude/lean-ctx — feedback welcome, especially on the
> routing/verification layers.

---

## Channel: Reddit (r/LocalLLaMA, r/programming, r/ChatGPTCoding)

- **Title:** LeanCTX: an open-source Context OS that cuts AI agent token usage up to 99%
- **Body:**

> I kept watching my coding agents re-read the same files and lose context between
> chats, so I built LeanCTX — a local Rust binary that governs context across four
> dimensions: compression, routing, memory, and verification. It hooks into 24+ AI
> tools, caches reads (~13 tokens on re-read), keeps a knowledge + code graph across
> sessions, and verifies outputs. Apache-2.0, zero telemetry. Install: `cargo install
> lean-ctx` or `npm i -g lean-ctx-bin`, then `lean-ctx setup`.

---

## Channel: X / Twitter

- **Launch post:**

> LeanCTX is the Context OS for AI development. One local binary that compresses,
> routes, remembers, and verifies every token between your code and the model.
>
> Up to 99% fewer tokens. Works with 24+ AI tools. Apache-2.0, zero telemetry.
>
> https://leanctx.com

- **Bio:** The Context OS for AI development — compress · route · remember · verify.

---

## Channel: directories & registries

Use the short description and the canonical facts block. Always submit the brand as
**LeanCTX** and the package/command as `lean-ctx`.

- **AlternativeTo** — category: Developer Tools / AI. Short description + four dimensions.
- **MCP registries / awesome-mcp lists** — PR blurb:

> **[LeanCTX](https://github.com/yvgude/lean-ctx)** — Context OS for AI coding agents.
> 80 MCP tools across compression, routing, memory, and verification. CLI-first, local,
> zero telemetry.

- **awesome-claude / awesome-cursor / awesome-ai-devtools** — same PR blurb.
- **Dev tool roundups & newsletters** — lead with the medium tagline + four dimensions.
