Unable to switch agent (plan<->build) in webpage in mobile #57973

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1. opencode-agent commented on Oct 22, 2026

   

   opencode-agentBot

   on Oct 22, 2026 – with OpenCode Agent

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   Thanks for the report! I think this is a duplicate of #48810, which reports the same missing plan/build selector in the web UI on mobile.

   Possible duplicates and related issues, ordered by likelihood:

   • web: plan/build selector missing when accessing remote instance from mobile Firefox #48810: plan/build selector missing in the web UI when opened from a phone; a commenter found no touch-friendly way to switch agent
   • Desktop: agent picker never renders (t.agent.visible() is always false) #57812: same cause on desktop; the agent picker is hidden unless the "Show agent" setting is on
   • desktop: new sessions hardcode agent "build" and ignore default_agent #57704: desktop new sessions use build and ignore default_agent

   Workaround: in v2 the agent picker in the composer is hidden by default when only the built-in plan/build agents exist. Open Settings → General and turn on "Show agent". The agent chip should then appear in the composer, and you can tap it to switch the session from plan to build. If the setting isn't reachable on your phone, or the chip still doesn't appear, please say so here.

   The bot will close this issue as a duplicate in 1 day unless you reply explaining how your problem is different.
2. opencode-agent

   added

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   triaging

   on Oct 22, 2026
3. opencode-agent

   closed this as duplicateon Oct 23, 2026
4. opencode-agent commented on Oct 23, 2026

   

   opencode-agentBot

   on Oct 23, 2026 – with OpenCode Agent

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   Closing this as a duplicate of #48810, since we haven't heard back. Please follow that issue for updates on the missing plan/build selector in the mobile web UI. #57812 covers the same cause on desktop.

   In the meantime, you can turn on Settings → General → "Show agent". The agent chip should then appear in the composer, and you can tap it to switch the session from plan to build.

   If your problem turns out to be different, or that setting doesn't help on your phone, please reply here and we can reopen.