[Bug]: Claude agent response only rendered the first sentence up to a specific tool call.

Before submitting

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

Area

apps/desktop

Steps to reproduce

1. start a thread
2. send a message that agent needs to write a message and than call a tool

Expected behavior

Message should correctly render full content

Actual behavior

Agent message did not render fully, no in view message after some point, whereas it actually wrote full message in the claude session.

I can continue to work in the terminal via picking session id and resuming it but it is not possible to view the message in-app

closing and re-opening the app does not solve the issue.

Visible flow in app:

• Agent wrote "Let me ground a couple of things that decide between these designs."
• called a tool
• stopped

Actual flow in claude code:

• Agent wrote "Let me ground a couple of things that decide between these designs."
• thought for 3m 19s
• called a tool
• continued writing the report "Good — now I can see the whole shape..."
• stopped.

Impact

Major degradation or frequent failure

Version or commit

0.0.29-nightly.20260727.921

Environment

macOS 26.3.1

Logs or stack traces

Most Common Failures
Span	Count	Cause	Last Seen
environment.orchestration.threadSnapshot	3,526	
EnvironmentResourceNotFoundError: 
    at environment.orchestration.threadSnapshot (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/unstable/httpapi/HttpApiBuilder.js:329:29)
    at environment.orchestration.threadSnapshot (definition) (Nightly)
Show full error
just now
ws.rpc.orchestration.subscribeThread	3,002	
OrchestrationGetSnapshotError: Thread ade012ee-cf46-4d8c-85de-dbb0f71c5962 was not found
    at Array.<anonymous> (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:41324:47) {
  [cause]: Error: ade012ee-cf46-4d8c-85de-dbb0f71c5962
      at causePrettyError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:232:13)
}
Show full error
2m ago
ws.rpc.orchestration.subscribeThread	524	
OrchestrationGetSnapshotError: Thread 6d8f69b7-cbfc-4e67-8459-c5032f31eb79 was not found
    at Array.<anonymous> (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:41324:47) {
  [cause]: Error: 6d8f69b7-cbfc-4e67-8459-c5032f31eb79
      at causePrettyError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:232:13)
}
Show full error
just now
shell.resolveCommandPathForPlatform	38	
CommandResolutionError: 
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:15035:16
    at shell.resolveCommandPathForPlatform (Nightly)
    at shell.resolveCommandPathForPlatform (definition) (Nightly)
    at shell.resolveCommandPath (Nightly)
    at shell.resolveCommandPath (definition) (Nightly)
    at shell.isCommandAvailable (Nightly)
    at shell.isCommandAvailable (definition) (Nightly)
    at externalLauncher.resolveAvailableCommand (Nightly)
    at externalLauncher.resolveAvailableCommand (definition) (Nightly)
    at externalLauncher.buildAvailableEditors (Nightly)
    at externalLauncher.buildAvailableEditors (definition) (Nightly)
Show full error
2m ago
shell.resolveCommandPath	38	
CommandResolutionError: 
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:15035:16
    at shell.resolveCommandPathForPlatform (Nightly)
    at shell.resolveCommandPathForPlatform (definition) (Nightly)
    at shell.resolveCommandPath (Nightly)
    at shell.resolveCommandPath (definition) (Nightly)
    at shell.isCommandAvailable (Nightly)
    at shell.isCommandAvailable (definition) (Nightly)
    at externalLauncher.resolveAvailableCommand (Nightly)
    at externalLauncher.resolveAvailableCommand (definition) (Nightly)
    at externalLauncher.buildAvailableEditors (Nightly)
    at externalLauncher.buildAvailableEditors (definition) (Nightly)
Show full error
2m ago
WorkspaceFileSystem.readFile	2	
WorkspaceFileSystemOperationError: Workspace file operation 'realpath-target' failed at '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure/t3.json' for resolved path '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure/t3.json' (requested as 't3.json' in '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure').
    at catch (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:35016:22)
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:745:40
    at ~effect/Utils/internal (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/Utils.js:83:14)
    at failWithCatch (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:745:21)
    at WorkspaceFileSystem.readFile (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:41384:113)
    at WorkspaceFileSystem.readFile (definition) (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:34998:26)
    at ws.rpc.projects.readFile (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:31208:111) {
  [cause]: Error: ENOENT: no such file or directory, realpath '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure/t3.json'
}
Show full error
2m ago
ws.rpc.projects.readFile	2	
ProjectReadFileError: Failed to read workspace file 't3.json' in '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure'.
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:41384:161
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:1378:96
    at ~effect/Utils/internal (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/Utils.js:83:14)
    at ws.rpc.projects.readFile (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:31208:111) {
  [cause]: WorkspaceFileSystemOperationError: Workspace file operation 'realpath-target' failed at '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure/t3.json' for resolved path '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure/t3.json' (requested as 't3.json' in '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure').
      at catch (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:35016:22)
      at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:745:40
      at ~effect/Utils/internal (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/Utils.js:83:14)
      at failWithCatch (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:745:21) {
    [cause]: Error: ENOENT: no such file or directory, realpath '/Users/burak/dev/voltran/worktrees/voltranai/deployment-restructure/t3.json'
  }
}
Show full error
2m ago
processRunner.runProcessCore	1	
ProcessSpawnError: Failed to spawn process 'az' in '/Users/burak'
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:15972:38
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:1378:96
    at ~effect/Utils/internal (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/Utils.js:83:14)
    at processRunner.runProcessCore (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:16035:44)
    at processRunner.runProcessCore (definition) (Nightly)
    at VcsProcess.run (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:35765:23)
    at VcsProcess.run (definition) (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:30103:21)
    at ws.rpc.server.discoverSourceControl (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:31208:111) {
  [cause]: PlatformError: NotFound: ChildProcess.spawn (az --version)
      at Module.systemError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/PlatformError.js:144:39)
      at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/internal/utils.js:28:24
      at toPlatformError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:26:54)
      at ChildProcess.<anonymous> (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:244:26)
      at ChildProcess.emit (node:events:509:28)
      at ChildProcess._handle.onexit (node:internal/child_process:293:12)
      at onErrorNT (node:internal/child_process:508:16)
      at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {
    [cause]: Error: spawn az ENOENT
        at ChildProcess._handle.onexit (node:internal/child_process:287:19)
        at onErrorNT (node:internal/child_process:508:16)
        at process.processTicksAndRejections (node:internal/process/task_queues:90:21)
  }
}
Show full error
2m ago
VcsProcess.run	1	
VcsProcessSpawnError: VCS process failed to spawn in source-control.discovery.probe: az (/Users/burak)
    at VcsProcessSpawnError.fromProcessSpawnError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:6287:10)
    at Object.ProcessSpawnError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:30123:55)
    at Object.evaluate (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/matcher.js:170:114)
    at i (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/matcher.js:234:37)
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/matcher.js:279:20
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/matcher.js:133:10
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/Function.js:81:18
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:1378:96
    at ~effect/Utils/internal (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/Utils.js:83:14)
    at VcsProcess.run (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:35765:23)
    at VcsProcess.run (definition) (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:30103:21)
    at ws.rpc.server.discoverSourceControl (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:31208:111) {
  [cause]: PlatformError: NotFound: ChildProcess.spawn (az --version)
      at Module.systemError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/PlatformError.js:144:39)
      at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/internal/utils.js:28:24
      at toPlatformError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:26:54)
      at ChildProcess.<anonymous> (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:244:26)
      at ChildProcess.emit (node:events:509:28)
      at ChildProcess._handle.onexit (node:internal/child_process:293:12)
      at onErrorNT (node:internal/child_process:508:16)
      at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {
    [cause]: Error: spawn az ENOENT
        at ChildProcess._handle.onexit (node:internal/child_process:287:19)
        at onErrorNT (node:internal/child_process:508:16)
        at process.processTicksAndRejections (node:internal/process/task_queues:90:21)
  }
}
Show full error
2m ago
processRunner.runProcessCore	1	
ProcessSpawnError: Failed to spawn process 'glab' in '/Users/burak'
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:15972:38
    at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:1378:96
    at ~effect/Utils/internal (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/Utils.js:83:14)
    at processRunner.runProcessCore (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:16035:44)
    at processRunner.runProcessCore (definition) (Nightly)
    at VcsProcess.run (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:35765:23)
    at VcsProcess.run (definition) (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:30103:21)
    at ws.rpc.server.discoverSourceControl (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:31208:111) {
  [cause]: PlatformError: NotFound: ChildProcess.spawn (glab --version)
      at Module.systemError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/PlatformError.js:144:39)
      at file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/internal/utils.js:28:24
      at toPlatformError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:26:54)
      at ChildProcess.<anonymous> (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:244:26)
      at ChildProcess.emit (node:events:509:28)
      at ChildProcess._handle.onexit (node:internal/child_process:293:12)
      at onErrorNT (node:internal/child_process:508:16)
      at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {
    [cause]: Error: spawn glab ENOENT
        at ChildProcess._handle.onexit (node:internal/child_process:287:19)
        at onErrorNT (node:internal/child_process:508:16)
        at process.processTicksAndRejections (node:internal/process/task_queues:90:21)
  }
}
Show full error
2m ago


---
Latest Failures
Span	Cause	Duration	Ended
ws.rpc.orchestration.subscribeThread	
OrchestrationGetSnapshotError: Thread 6d8f69b7-cbfc-4e67-8459-c5032f31eb79 was not found
    at Array.<anonymous> (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/apps/server/dist/bin.mjs:41324:47) {
  [cause]: Error: 6d8f69b7-cbfc-4e67-8459-c5032f31eb79
      at causePrettyError (file:///Applications/T3%20Code%20(Nightly).app/Contents/Resources/app.asar/node_modules/effect/dist/internal/effect.js:232:13)
}
Show less
1 ms	just now

Screenshots, recordings, or supporting files

SCR-20260728-laos.png
SCR-20260728-mljd.png
SCR-20260728-mlli.png
SCR-20260728-mmlb.png

Workaround

getting the session id, and resuming the session from the terminal.

Start in apps/desktop and trace the thread rendering flow through the orchestration.subscribeThread and environment.orchestration.threadSnapshot entries shown in the logs. Reproduce a message that continues after a tool call, then compare the in-app thread with the Claude session. Done means the complete agent response remains visible after the tool call and the relevant regression is covered by a test.