The best lean-ctx alternatives

serena

oraios/serena

A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent

Choose serena if…

• you would rather work in Python than Rust
• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (31.1k)
• you specifically need agent or claude

Shares ai, ai-coding, claude-code, mcp-server with lean-ctx.

Graft

trailhq/Graft

Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.

Choose Graft if…

• you would rather work in TypeScript than Rust
• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (11.1k)
• you specifically need anthropic or cli

Shares ai-agents, claude-code, context-engineering, cursor with lean-ctx.

linkedin-mcp-server

stickerdaniel/linkedin-mcp-server

Open-source MCP server for LinkedIn. Give Claude and any MCP-compatible AI agent access to profiles, companies, jobs, and messages.

Choose linkedin-mcp-server if…

• you would rather work in Python than Rust
• you specifically need anthropic or chatgpt

Shares ai-agents, claude-code, mcp, mcp-server with lean-ctx.

Claude-Code-Everything-You-Need-to-Know

wesammustafa/Claude-Code-Everything-You-Need-to-Know

A practical Claude Code guide with clear mental models and copy-paste examples — setup, prompt engineering, slash commands, skills, hooks, subagents, agent teams, and MCP servers. Beginner path to power-user depth. Featured in Awesome Claude Code.

Choose Claude-Code-Everything-You-Need-to-Know if…

• you would rather work in Python than Rust
• MIT License suits your use better than Apache License 2.0
• you specifically need agent-skills or anthropic

Shares agentic-coding, ai-agents, claude-code, mcp with lean-ctx.

headroom

headroomlabs-ai/headroom

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

Choose headroom if…

• you would rather work in Python than Rust
• you want the more widely starred option (78.7k)
• you specifically need agent or anthropic

Shares ai, claude-code, context-engineering, cursor with lean-ctx.

herdr

herdrdev/herdr

the runtime your coding agents live on

Choose herdr if…

• you want the more widely starred option (47.8k)
• you specifically need agent or agent-orchestration

Shares ai, ai-agents, claude-code, developer-tools with lean-ctx.

gentle-ai

Gentleman-Programming/gentle-ai

Gentle-AI configures the AI coding agents you already use: Claude Code, Cursor, OpenCode, Codex, Pi, and more. Choose persistent memory, Spec-Driven Development, curated skills, MCP servers, personas, and optional bounded review. Open source, no agent lock-in.

Choose gentle-ai if…

• you would rather work in Go than Rust
• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (8.2k)
• you specifically need agent-skills or code-review

Shares ai-agents, ai-coding, claude-code, copilot with lean-ctx.

mirrord

metalbear-co/mirrord

Run any process, on your machine or in an AI agent's environment, as if it were a pod in your Kubernetes cluster: real env vars, DNS, network, traffic.

Choose mirrord if…

• MIT License suits your use better than Apache License 2.0
• you specifically need agent-skills or api

Shares ai-agents, ai-coding, claude-code, developer-tools with lean-ctx.

ponytail

DietrichGebert/ponytail

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

Choose ponytail if…

• you would rather work in JavaScript than Rust
• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (183.4k)
• you specifically need agent-skills or claude

Shares ai-agents, claude-code, developer-tools, llm with lean-ctx.

codebase-memory-mcp

DeusData/codebase-memory-mcp

High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries, 99% fewer tokens. Single static binary, zero dependencies.

Choose codebase-memory-mcp if…

• you would rather work in C than Rust
• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (48.0k)
• you specifically need aider or ast

Shares claude-code, cursor, developer-tools, gemini-cli with lean-ctx.

agents

wshobson/agents

Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, and Google Antigravity

Choose agents if…

• you would rather work in Python than Rust
• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (42.1k)
• you specifically need agent-skills or agentic-ai

Shares ai-agents, claude-code, copilot, cursor with lean-ctx.

context-mode

mksglu/context-mode

Context window optimization for AI coding agents. Sandboxes tool output (98% reduction), persists session memory, and enforces routing across 17 platforms via MCP + hooks.

Choose context-mode if…

• you would rather work in TypeScript than Rust
• you want the more widely starred option (33.3k)
• you specifically need antigravity or claude

Shares claude-code, copilot, mcp, mcp-server with lean-ctx.