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Tools2026-07-22 · source-backed
Stewardship moved to the Agentic AI Foundation under the Linux Foundation, with 30+ tools reading it natively: Claude Code, Copilot, Cursor, Codex, Gemini CLI, Windsurf, Devin, Aider, Amazon Q (BuildBetter). Claude Code reads AGENTS.md in addition to CLAUDE.md, which stays its richer native format. For multi-tool repos: put build/test commands, conventions, and PR rules in AGENTS.md as the portable base, reserve CLAUDE.md for Claude-specific context. One file per tool duplicating the same content is how instruction drift starts, and instruction drift is worse than no instructions because you think you're covered.
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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...
bradautomates/claude-video (v0.2.0, July 1) lets agents download, frame-extract, and transcribe any video via yt-dlp, ffmpeg, and Whisper, then hand it to Claude's multimodal Read (GitHub). It ships as an Agent Skill usable across 50+ agents: Claude Code, Codex, Cursor, Gemini...
It's now the cross-tool standard read by 60,000+ repos, natively understood by Codex, Cursor, Copilot, Gemini CLI, Aider, Windsurf, and Zed. Stop maintaining separate .cursorrules and .windsurfrules. Keep one mission file and let each tool discover it. Inside it, tell the agen...
JuliusBrussee/caveman hit 54,000+ GitHub stars in under three weeks and topped Hacker News. The repo is exactly what it sounds like: a skill that strips agent verbosity, kills the "I'd be happy to help" preamble, and makes Claude answer in terse, near-grunt prose while keeping...
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...
Barry Zhang and Mahesh Murag, the engineers who built Claude Skills at Anthropic, published a talk and engineering post that's gotten 14K+ likes and is reshaping how I think about agent development. The core argument: most agent approaches fail because they lack domain experti...
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