Plan mode error using right side bar integrated

Type: <b>Bug</b>

Using instead Local, but Claude direct on right side AI chat, when set plan mode, not working properly.

Extension version: 2.1.72
VS Code version: Code 1.111.0 (ce099c1ed25d9eb3076c11e4a280f3eb52b4fbeb, 2026-03-06T23:06:10Z)
OS version: Windows_NT x64 10.0.26100
Modes:

<details>
<summary>System Info</summary>

|Item|Value|
|---|---|
|CPUs|12th Gen Intel(R) Core(TM) i7-12700H (20 x 2688)|
|GPU Status|2d_canvas: enabled<br>GPU0: VENDOR= 0x8086, DEVICE=0x46a6 [Intel(R) Iris(R) Xe Graphics], DRIVER_VENDOR=Intel, DRIVER_VERSION=31.0.101.4255 ACTIVE<br>GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.7309<br>Machine model name: <br>Machine model version: <br>direct_rendering_display_compositor: disabled_off_ok<br>gpu_compositing: enabled<br>multiple_raster_threads: enabled_on<br>opengl: enabled_on<br>rasterization: enabled<br>raw_draw: disabled_off_ok<br>skia_graphite: disabled_off<br>trees_in_viz: disabled_off<br>video_decode: enabled<br>video_encode: enabled<br>webgl: enabled<br>webgl2: enabled<br>webgpu: enabled<br>webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|23.70GB (1.43GB free)|
|Process Argv|--crash-reporter-id 99653295-4f5e-4216-801f-081fe038a4f0|
|Screen Reader|no|
|VM|0%|
</details><details>
<summary>A/B Experiments</summary>

vsliv368cf:30146710
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
6abeh943:31336334
envsdeactivate2:31464701
cloudbuttont:31379625
aihoversummaries_f:31469309
3efgi100_wstrepl:31403338
839jf696:31457053
use-responses-api:31390855
je187915:31401257
ec5jj548:31422691
cp_cls_t_966_ss:31454198
4je02754:31466945
find_all_ref_in_bg_t:31469306
ge8j1254_inline_auto_hint_haiku:31431912
nes-autoexp-10:31446583
00h15499_gpt_53_codex:31464542
7a04d226_do_not_restore_last_panel_session:31438103
preserve_tokens:31444547
cp_cls_t_1081:31454832
ia-use-proxy-models-svc:31452481
a43f0575b:31442825
e9c30283:31461165
test_treatment2:31471001
nes-conv-2-3:31474331
subagent_3ccgc321:31467997
idci7584:31464702
edit_mode_hidden:31461530
864ei723_large_tool_results_to_disk:31460878
notips:31471632
b1f5h706:31471673
nes-extended-on:31455476
chat:31457767
8hig5102:31473806
ah:31460422
2ab5e849:31472040
nes-rcnt-edit:31471617
8a2c4887_5_3_codex_prompt:31475326
cpptoolson-v2:31475363
thinking_effort_h:31471653
4dgh1208:31471592
hover1:31474145
thinking_c:31471065
c3257622:31473910
newsessionicon:31473927
nes-notsn-1:31475122

</details>

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