[Bug]: reject reason not work on new version

[bluelovers]

App Variant

Server CLI

Operating System & Version

win11

Issue Summary

reject reason not work on new version

Steps to Reproduce

after new version is use opencode2
reject reason is not work

Expected Behavior

reject reason work
agent should why they get reject, when user is input reject reason

Logs & Screenshots

No response

Additional Context

No response

[bluelovers]

in 0.20.0-dev-20260919-c2b349f8 looks like reject reason not work again

[pascalandr]

I reproduced a second feedback-loss issue with isolated OpenCode 2.0.10, 2.0.11 and beta-19271 servers.

#701 is included in your build, and its browser regression still passes: the typed reason survives permission refreshes. The rejection request also contains the full message.

The loss happens afterwards in OpenCode. With read, the next model request contains only Unable to read <path>, without the rejection reason. I also reproduced it with shell on 2.0.10 (Unable to execute command: ...). In the native code, the tool error wrapper replaces the permission feedback with that generic message (read wrapper in 2.0.11).

[pascalandr]

I traced the feedback loss to OpenCode's error serialization and opened anomalyco/opencode#50157 with a standalone reproduction, plus a fix in anomalyco/opencode#50158. I verified that the full rejection reason reaches the next model request for both read and shell with the fix. The PR is awaiting upstream review; it is not in a released version yet.