The week's story is competitive pressure showing up in two places at once.

OpenAI shipped GPT-5.5 on Wednesday with the same agentic-coding pitch as Claude. The API followed a day later: $5 per million input tokens, $30 per million output tokens, 1M-token context window. Anthropic spent the same week reversing its own Claude Code regression stack - a caching bug that dropped thinking history, a verbosity prompt change that hurt coding quality, a quietly-lowered default reasoning effort - all rolled back, xhigh restored as the coding default, usage limits credited for affected subscribers. Then on Friday night they shipped 2.1.120, which crashed claude --resume and claude --continue with a JS runtime error and reintroduced a macOS sandbox failure on resumed sessions. The npm latest tag stayed pinned to 2.1.119, no GitHub Release was cut, and ~25 bug reports landed within 48 hours. The model race is one story; the harness around the model is a different and increasingly louder one.

From us: we shipped Yaw Mode for Claude Code - an overlay that bundles rules and agents while preserving conversation history across sessions. Plus a public methodology for grading any MCP server against the spec in 30 seconds (88 criteria, A–F), a Tailscale audit prompt that resolves five common scenarios in one agent run, and a piece on the local-vs-remote MCP deployment tradeoff.

From the Yaw blog

Claude Code this week

The broader week