tool-design
2 articles
How the Claude Code Team Designs Tools: Learning to See Like an Agent
Claude Code engineer Thariq shares a year of agent tool design lessons: three failed attempts at question-asking, Todo Lists becoming constraints, replacing RAG with Grep, and expanding capabilities without adding tools.
Stripping Down Three Excel AI Agents: Claude Has 14 Tools, Copilot Has 2, Shortcut Can Actually SEE the Spreadsheet — Five Questions Every Agent Builder Must Answer
Nicolas Bustamante reverse-engineered three production Excel AI agents, comparing tool schemas, overwrite protection, verification loops, and memory. Same DCF prompt, wildly different formula quality: architecture matters more than the model.