Lean Ctx
lean-ctx-bin Β· by yvgude
Hybrid Context Optimizer β Shell Hook + MCP Server. Reduces LLM token consumption by 89-99%. Single Rust binary, zero dependencies.
No known CVEs
MIT license
Actively maintained
Last commit 0d ago
Works with most clients
Transport: stdio, sse, http
15 tools Β· ~1.0k tok
Grade B Β· 0.5% of 200K ctx
Step 1
Install in your client
Config is the same across clients β only the file and path differ.
CD
Supported in Claude Desktopstdio, sse, http Β· Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"lean-ctx": {
"command": "lean-ctx"
}
}
}Are you the author?
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What Lean Ctx does
βββ ββββββββ ββββββ ββββ βββ βββββββββββββββββββ βββ βββ βββββββββββββββββββββ βββ βββββββββββββββββββββββββ βββ ββββββ ββββββββββββββ βββ βββ βββ ββββββ βββ ββββββ ββββββββββββββββββ βββ βββ ββββββ βββββββββββββββββββ ββββββ ββββββ ββββββββ βββ ββββ βββ βββββββββββββββββββ ββββββ βββββ βββββββ βββ βββ βββ The Intelligence Layer for AI Coding
Test This Server
This server supports HTTP transport. Be the first to test it β help the community know if it works.
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Why this score
Five weighted categories β click any category to see the underlying evidence.
Score breakdown
91/100across 5 weighted dimensions
0255075100
30
20
16
15
10
β9
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked lean-ctx-bin against OSV.dev.
Inventory
Tools (15)
Click any tool to inspect its schema.
~1.0k tokens total
Community
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Frequently Asked Questions
- Is Lean Ctx safe to use?
- Lean Ctx has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect β keep this in mind in shared environments. Licensed under MIT.
- How do I install Lean Ctx?
- Lean Ctx supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
- What can Lean Ctx do?
- Lean Ctx provides 15 tools: ctx_read, ctx_map, ctx_delta, ctx_git, ctx_ls and 10 more. See the full tools list on the server page for descriptions and parameters.
- What AI clients work with Lean Ctx?
- Lean Ctx is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Lean Ctx actively maintained?
- Lean Ctx is actively maintained β last commit was 0 days ago. It has 3,027 GitHub stars.
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