session.writeState error on OpenCode 1.17.7 (Windows)

[CuiWeiloong]

Description

session.writeState fails with Failed to write session state error on OpenCode 1.17.7 (Windows). This error appears in the chat input area periodically during a session.

Symptoms

• UI shows red error toast: [OpenToken] ERROR [uuid] (session.writeState) Failed to write session state
• Compression still works (tool output is compressed correctly), but error is disruptive to UX
• Occurs with OpenCode 1.17.7, OpenToken 2.2.0, Windows 11

Impact

• Visual noise in the chat UI
• No functional impact on token compression itself

Temporary Workaround

Patching dist/plugin.js to remove the logger.error call in the session.writeState function eliminates the error without affecting compression.

Environment

• OS: Windows 11
• OpenCode: 1.17.7
• OpenToken: 2.2.0