Claude Code bug hides both Task tools and TodoWrite in interactive sessions on Windows
GerbenCdg · ghdev · 2026-07-18
- A GitHub issue reports that in Claude Code 2.1.214 on Windows, both the Task tools (TaskCreate/TaskUpdate/TaskList/TaskGet) and the TodoWrite fallback disappear in interactive sessions.
- The bug appears when using the newest model, claude-fable-5, and the issue says the tools are hidden by a server-side experiment called tenguvellumash evaluated at session startup.
- The reporter traced the gating logic in the binary: when the experiment matches, both tool families are disabled, leaving no task-tracking fallback in interactive mode.
- Headless mode (claude -p) still exposes the task tools, suggesting the bug is specific to the interactive session path.
More from coding & agent
- Claude Code + Monid MCP builds a $12K/year B2B prospecting engine on live data — aryanXmahajan · 2026-10-26
- Karpathy shares CLAUDE.md rulebook to stop AI coding agents from piling up tech debt — mdancho84 · 2026-10-26
- Rethinking dependencies in the agent era: drop libs that save 20 lines of code — gethackteam · 2026-10-26
- RustGIS hits 2,000 GitHub stars in two weeks with agent-first architecture — giswqs · 2026-10-26
- Vercel Ships 12 New Products at Its 2026 Conference as It Races Rivals for the Agent Entry Point — FinanceYF5 · 2026-10-26
- Build an AI agent from scratch in under 50 lines of pure Python: ReAct loop tutorial — adnan_hashmi · 2026-10-26