Claude Code v2.1.136–138 add auto-mode hard-deny rules; engineer argues HTML beats Markdown

Anthropic shipped three Claude Code releases this week. v2.1.136 adds settings.autoMode.hard_deny for unconditional classifier blocks and CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL for enterprise OTEL capture, plus fixes for MCP servers silently disappearing. v2.1.137 fixes the VSCode extension on Windows. Separately, Claude Code engineer Thariq Shihipar published 'The Unreasonable Effectiveness of HTML,' arguing for HTML artifacts over Markdown when prompting Claude.