Anthropic owns up: harness changes caused Claude Code degradation, ships personal connectors

Anthropic published a post-mortem admitting that recent harness and operating-instruction changes likely caused the Claude Code quality degradation users have complained about for weeks. It launched personal connectors for Spotify, Uber, Uber Eats, Audible, AllTrails, TripAdvisor, Instacart, and TurboTax, and committed to internal dogfooding plus a new @ClaudeDevs transparency channel.