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The lean-ctx MCP server was last committed today and has 1 contributor. Issue health: 50% of issues resolved. AgentRank freshness score reflects real-time maintenance activity.

lean-ctx MCP Server

Name: yvgude/lean-ctx
Rating: 3.0 (1 reviews)
Author: yvgude

yvgude/lean-ctx

Score: 49.6 Rank #105 MCP Server

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Hybrid Context Optimizer — Shell Hook + MCP Server. Reduces LLM token consumption by 89-99%. Single Rust binary, zero dependencies.

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Overview

yvgude/lean-ctx is a Rust MCP server. Hybrid Context Optimizer — Shell Hook + MCP Server. Reduces LLM token consumption by 89-99%. Single Rust binary, zero dependencies. Topics: ai, cli, context-compression, cursor, llm, mcp, rust, token-optimization, agentic-coding, claude-code, compression, copilot, developer-tools, open-source, tokens.

Ranked #105 out of 129 indexed tools.

Actively maintained with commits in the last week.

Ecosystem

Rust No license

aiclicontext-compressioncursorllmmcprusttoken-optimizationagentic-codingclaude-codecompressioncopilotdeveloper-toolsopen-sourcetokens

Score Breakdown

Stars 15% 1

1 stars → early stage

Freshness 25% today

Last commit today → actively maintained

Issue Health 25% 50%

No issues filed → no history to score

Contributors 10% 1

1 contributor → solo project

Dependents 25% 0

No dependents → no downstream usage

npm Downloads N/A

PyPI Downloads N/A

Forks 0

Description Good

License None

Weights: Freshness 25% · Issue Health 25% · Dependents 25% · Stars 15% · Contributors 10% · How we score →

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Details

Stars: 1
Forks: 0
Open Issues: 0
Closed Issues: 0
Contributors: 1
Dependents: —
Language: Rust
License: —
Last Commit: today

Matched Queries

"mcp server""mcp-server"

From the README

# lean-ctx

**Hybrid Context Optimizer — Shell Hook + MCP Server. Single Rust binary, zero dependencies.**

[Website](https://lean-ctx.pounce.ch) · [Install](#installation) · [Quick Start](#quick-start) · [CLI Reference](#cli-commands) · [MCP Tools](#8-mcp-tools) · [vs RTK](#lean-ctx-vs-rtk)

---

lean-ctx reduces LLM token consumption by **89-99%** through two complementary strategies in a single binary:

1. **Shell Hook** — Transparently compresses CLI output before it reaches the LLM. Works without LLM cooperation.
2. **MCP Server** — 8 tools for cached file reads, dependency maps, entropy analysis, and session metrics. Works with Cursor, GitHub Copilot, Claude Code, Windsurf, and any MCP-compatible editor.

## Token Savings (Typical Cursor/Claude Code Session)

| Operation | Frequency | Standard | lean-ctx | Savings |
|---|---|---|---|---|
| File reads (cached) | 15x | 30,000 | 195 | **-99%** |
| File reads (map mode) | 10x | 20,000 | 2,000 | **-90%** |
| ls / find | 8x | 6,400 | 1

Read full README on GitHub →