Tutorials

The Claude Code team reviewed its tool design, stressing that tools keep changing with model capability, agent goals and runtime environment. AskUserQuestion became a standalone tool for structured questions after two failed attempts, and Task replaced TodoWrite with task dependencies and shared updates across subagents. Context retrieval moved from pre-indexed RAG to Grep search and progressive disclosure; the Claude Code Guide subagent searches docs in its own context and returns only the answer to the main agent.

Mistral built an agent on its open-source coding assistant Vibe that writes Rails RSpec tests on its own. It reads source code, generates or improves tests, checks them against style rules and coverage targets, and runs unattended in CI/CD.