Shell Integration causes weird characters in PowerShelll prompt

[tanrikut]

Type: Bug

When I enable shell integration with PowerShell, the injected script causes extremely long text with weird characters inside. It seems like the contents of PATH environment variable or so with wrong encoding.

尰\x5cu0085巸\x5cu0085\x3bC:\x5c\x5cUsers\x5c\x5ctkoray\x5c\x5c.dotnet\x5c\x5ctools\x3bC:\x5c\x5cUsers\x5c\x5ctkoray\x5c\x5cAppData\x5c\x5cLocal\x5c\x5cPrograms\x5c\x5cFiddler\x3bC:\x5c\x5cUsers\x5c\x5ctkoray\x5c\x5c.dotnet\x5c\x5ctools\x3bC:\x5c\x5cUsers\x5c\x5ctkoray\x5c\x5cAppData\x5c\x5cLocal\x5c\x5cMicrosoft\x5c\x5cWindowsApps\x3bC:\x5c\x5cUsers\x5c\x5ctkoray\x5c\x5cAppData\x5c\x5cLocal\x5c\x5cMicrosoft\x5c\x5cWinGet\x5c\x5cLinks\x3bC:\x5c\x5cUsers\x5c\x5ctkoray\x5c\x5cAppData\x5c.........

I tried a few settings combinations with decorations, shell integration and envrionment reporting and see that enabling "terminal.integrated.shellIntegration.environmentReporting" causes this issue. As workaround, this setting can be disabled

VS Code version: Code - Insiders 1.98.0-insider (c7a5cfe, 2025-02-28T22:42:41.870Z)
OS version: Windows_NT x64 10.0.26100
Modes:

System Info

Item	Value
CPUs	11th Gen Intel(R) Core(TM) i7-11370H @ 3.30GHz (8 x 3302)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	15.69GB (2.67GB free)
Process Argv	--crash-reporter-id 05811b17-16f9-4e83-9da6-fcac3bd03f8c
Screen Reader	no
VM	0%

Extensions (41)

Extension	Author (truncated)	Version
ng-template	Ang	19.2.0
vscode-office	cwe	3.5.0
vscode-markdownlint	Dav	0.59.0
gitlens	eam	2025.3.304
prettier-vscode	esb	11.0.0
copilot	Git	1.276.1406
copilot-chat	Git	0.25.2025030302
remotehub	Git	0.65.2024112101
camelcasenavigation	map	1.1.5
vscode-docker	ms-	1.29.4
playwright	ms-	1.1.13
prompty	ms-	0.1.2024092301
remote-containers	ms-	0.400.0
remote-ssh	ms-	0.117.1
remote-ssh-edit	ms-	0.87.0
remote-wsl	ms-	0.88.5
vscode-remote-extensionpack	ms-	0.26.0
azure-repos	ms-	0.41.2024112101
js-debug-nightly	ms-	2025.2.1117
remote-explorer	ms-	0.5.2025021709
remote-repositories	ms-	0.43.2024112101
remote-server	ms-	1.5.2
vscode-speech	ms-	0.12.1
vscode-websearchforcopilot	ms-	0.1.2025022801
playwright-snippets	nit	1.0.1
java	red	1.41.2025030108
markdown-preview-enhanced	shd	0.8.15
sonarlint-vscode	Son	4.16.0
intellicode-api-usage-examples	Vis	0.2.9
vscodeintellicode	Vis	1.3.2
vscode-spring-boot	vmw	1.61.2025030309
vscode-gradle	vsc	3.16.2024111106
vscode-java-debug	vsc	0.58.2025022807
vscode-java-dependency	vsc	0.24.1
vscode-java-pack	vsc	0.29.2024091906
vscode-java-test	vsc	0.43.0
vscode-lombok	vsc	1.1.2024071804
vscode-maven	vsc	0.44.2024072906
vscode-spring-boot-dashboard	vsc	0.14.2024073000
vscode-spring-initializr	vsc	0.11.2024112703
markdown-all-in-one	yzh	3.6.2

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyt551:31249597
vscod805:30301674
py29gd2263:31024238
vscaat:30438846
c4g48928:30535728
a9j8j154:30646983
962ge761:30841072
dsvsc014:30777825
dsvsc015:30821418
h48ei257:31000450
pythontbext0:30879054
cppperfnew:30980852
pythonait:30973460
dwnewjupyter:31046869
nativerepl1:31134653
pythonrstrctxt:31093868
nativeloc1:31118317
e80f6927:31120813
iacca1:31150324
notype1:31143044
dwcopilot:31158714
c3hdf307:31184662
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
9064b325:31222308
copilot_t_ci:31222730
f27dg485:31233432
g012b348:31231168
jda6j935:31233686
copilothoveroff:31247700
treesitterini:31241649
fh1c7952:31247580

[tanrikut]

If this setting is disabled, prompt seems ok but shell integration with Copilot Agent is not working

[anthonykim1]

Could you explain what you mean by shell integration with copilot agent?

Disabling "terminal.integrated.shellIntegration.environmentReporting" to false should resolve your particular issue for the prompt, but that shouldnt affect other things that are related to shell integration in general.

[tanrikut]

I am using Copilot Edits in Agent mode. It should be able to read the outputs of the commands that it sends to the terminal when shellIntegration is enabled. It was not able to do so if it is marked as enabled.

Actually after a complete restart and a few updates, integration problem seems to be resolved.

[Tyriar]

@tanrikut do you have terminal.integrated.windowsUseConptyDll or terminal.integrated.windowsEnableConpty set?

I am using Copilot Edits in Agent mode. It should be able to read the outputs of the commands that it sends to the terminal when shellIntegration is enabled. It was not able to do so if it is marked as enabled.

We're tracking a few issues related to the reliability of the run in terminal copilot tool. This is the main one: #242195

[tanrikut]

@Tyriar yes both are set. (enabled)