Open-source AI dev-tools
Four small tools for making the Claude API legible — observe a single call, replay an agent trace, compare prompts side by side, build a tool-use loop interactively. Same design language, distinct angle each.
Read the writing
Each tool has one or two long-form posts explaining the engineering decision behind it — the protocol-level details, the failure modes it surfaces, and what it changes about how you ship.
claudoscope
agent-replay
prompt-lab