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Tools2026-05-10 · source-backed
lean-ctx is a Rust-based system that sits between AI coding tools and LLMs, compressing file reads by 60-99% and shell output by 60-95% using Tree-sitter AST parsing for 18 languages. Cached re-reads cost only 13 tokens. Works as a standard MCP server with 49 tools. Compatible with Claude Code, Cursor, Copilot, Windsurf, and Codex. Context optimization is becoming its own tool category.
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19,659 stars since February, ~119/day, 1,410 forks. Different angle from the token-compression proxies: rather than compressing what goes to the model, it sandboxes tool output completely while persisting session memory and enforcing routing via MCP plus hooks across Claude Co...
RTK (Rust Token Killer) is a single Rust binary that sits between your terminal commands and your AI coding agent. When Claude Code or Cursor calls git status or ls -la, RTK intercepts the output and compresses it before it hits the context window. That's it. One trick. And it...
The most under-hyped tool of the week is a single Rust binary with zero dependencies that sits between your coding agent and your terminal, compressing command outputs before they hit the context window. rtk (Rust Token Killer) intercepts common dev commands — cargo test, git...
EchoVault solves the "agent amnesia" problem — coding agents forgetting everything between sessions. It runs as an MCP server giving agents three tools: memory_context (load prior decisions), memory_search (find specific memories), and memory_save (persist learnings). Storage...
wanshuiyin/HERO-Anti-OverDefense went from creation to 68 stars in a single day. HERO is Hashing, Edge cases, Rubrics, Overbuild, and the claim is that agent over-engineering isn't diffuse but falls into four recognizable shapes suppressible with a portable prompt contract acr...
RTK is a single Rust binary that intercepts your terminal commands and compresses the output before it hits the LLM context window. That's it. No configuration philosophy, no agent framework — just less tokens for the same information. The numbers are immediate: cargo test com...
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