CodeBurn: free, local-first cost tracker for 31 AI coding tools
CodeBurn (getagentseal/codeburn) reads the session files your AI coding tools already write, breaks down every token and dollar across 31 integrations, MIT, no proxy, no API key.
codebase-memory-mcp: zero-dep code intelligence
Pure-C, single-binary MCP server that indexes a codebase into a Tree-Sitter knowledge graph in milliseconds. 13.3k stars, MIT, 5,604 tests, 11 agents. arXiv 2603.27277 reports 83% quality at 10× fewer tokens.
caveman: terse-output skill, 75k stars in 11 weeks
GitHub JuliusBrussee/caveman: a TypeScript skill for 30+ agent platforms that asks the agent to drop filler. 75k stars, MIT, 65% output-token reduction.
Google Workspace CLI (gws): Rust CLI for Workspace APIs
googleworkspace/cli (gws) is a first-party Rust CLI for every Workspace API, built dynamically from the Google Discovery Service, with 95 skill directories and opt-in Model Armor sanitization.