OpenAI Desktop App WSL Thread Resume Fails Due to Missing MCP Transport
huangshiyu13 · ghdev · 2026-08-26
Issue
The OpenAI desktop app (v26.820.7780.0) fails to resume threads hosted in WSL after auto-updating, throwing an invalid transport in mcpservers.codexapp error.
Root Cause
When resuming WSL-hosted threads, the app injects a request-level config entry for mcpservers.codexapp but strips the command/url transport fields. Codex rejects the config due to the missing transport. This bug is specific to the WSL code path; Windows paths function correctly.
Workaround
Disable the WSL integration by setting runCodexInWindowsSubsystemForLinux = false in the config. The expected fix involves including the necessary transport arguments in the WSL path configuration.
More from coding & agent
- Guiding AI to think outside the box improved translation speed by 42% — dotey · 2026-08-27
- Cursor Agent Ran 48 Hours Building a 3D Campus: More Detail, but Nearly Every Building Is Wrong — tristanbob · 2026-08-27
- Apodex 1.1 Report: Achieving Sustained, Verifiable Progress via Environment & Agentic Scaling — HeyAmit_ · 2026-08-27
- List features nearly 16 coding agents; how many does the world need? — thisiskp_ · 2026-08-27
- dhh Celebrates: GitHub Agents May Soon Stop Asking You to Drag Screenshots Manually — DanWahlin · 2026-08-27
- Clanker Cloud Allows Building Agents and Access via Curl — tekbog · 2026-08-27