[Bug]: Antigravity is not working after recent changes

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/web

Steps to reproduce

Antigravity is not working

Expected behavior

Antigravity is not working

Actual behavior

Antigravity is not working

Impact

Blocks work completely

Version or commit

No response

Environment

Win 11

Logs or stack traces

ProviderAdapterSessionClosedError: antigravity adapter thread is closed: c010e15b-01d8-4bfc-95d1-5880dd2e2f8e at mapAcpToAdapterError (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:146178:45) at mapAntigravityError (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:159801:7) at file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:160358:201 at file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/claudeHistoryWorker-CAn1PawV.mjs:10021:96 at ~effect/Utils/internal (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/claudeHistoryWorker-CAn1PawV.mjs:2558:10) at startSession (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205107:59) at startSession (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:192276:23) at ensureSessionForThread (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205191:10) at ensureSessionForThread (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205026:33) at processTurnStartRequested (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205752:12) at processTurnStartRequested (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205405:36) at processDomainEvent (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205780:46) at processDomainEvent (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205729:29) { [cause]: AcpProcessExitedError: ACP process exited with code 4294967295 at Object.onSuccess (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:109331:23) }

Hi

10:37 am


ProviderAdapterSessionClosedError: antigravity adapter thread is closed: c010e15b-01d8-4bfc-95d1-5880dd2e2f8e
    at mapAcpToAdapterError (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:146178:45)
    at mapAntigravityError (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:159801:7)
    at file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:160358:201
    at file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/claudeHistoryWorker-CAn1PawV.mjs:10021:96
    at ~effect/Utils/internal (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/claudeHistoryWorker-CAn1PawV.mjs:2558:10)
    at startSession (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205107:59)
    at startSession (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:192276:23)
    at ensureSessionForThread (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205191:10)
    at ensureSessionForThread (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205026:33)
    at processTurnStartRequested (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205752:12)
    at processTurnStartRequested (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205405:36)
    at processDomainEvent (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205780:46)
    at processDomainEvent (definition) (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:205729:29) {
  [cause]: AcpProcessExitedError: ACP process exited with code 4294967295
      at Object.onSuccess (file:///C:/Users/Pavan/AppData/Local/Programs/t3code/resources/server.asar/apps/server/dist/bin.mjs:109331:23)
}

Screenshots, recordings, or supporting files

Screenshot 2026-09-17 104018.png

Workaround

No response

Start with the ProviderAdapterSessionClosedError and AcpProcessExitedError in the logs, then inspect the related session and adapter paths behind apps/server/dist/bin.mjs and apps/web. Reproduce the failure on Windows 11 and determine why the ACP process exits; done means Antigravity sessions start and remain usable.