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Fix missing space in background agent delegation message #2566

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Fix missing space in background agent delegation message #2566

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Copilot AI commented Dec 12, 2025 •
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Messages "Changes migrated to worktree." and "Background Agent has begun working on your request..." were concatenated without separation when delegating with uncommitted changes.

Changes

  • Add \n\n after the worktree migration message to create proper paragraph separation before the subsequent delegation message
Original prompt

This section details on the original issue you should resolve

<issue_title>nit: background agent delegation message</issue_title>
<issue_description>
Type: Bug

Changes migrated to worktree.Background Agent has begun working on your request. Follow its progress in the Agents View.

Missing a space

VS Code version: Code - Insiders 1.108.0-insider (Universal) (9ba40f8204f1b4cb092f9585b19ab3f26d0a588c, 2025-12-12T14:19:49.836Z)
OS version: Darwin arm64 24.6.0
Modes:

System Info
Item Value
CPUs Apple M3 Max (14 x 2400)
GPU Status 2d_canvas: enabled
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: enabled_on
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgl2: enabled
webgpu: enabled
webnn: disabled_off
Load (avg) 3, 4, 4
Memory (System) 36.00GB (0.07GB free)
Process Argv --enable-proposed-api rebornix.anyllm --enable-proposed-api rebornix.lulu --crash-reporter-id 1ce5da70-91d5-46fb-a706-70ff08933f9c
Screen Reader no
VM 0%
Extensions (52)
Extension Author (truncated) Version
better-comments aar 3.0.2
tsl-problem-matcher amo 0.6.2
logpoint-generator amu 1.0.2
claude-code Ant 2.0.65
github-markdown-preview bie 0.3.0
markdown-checkbox bie 0.4.0
markdown-emoji bie 0.3.1
markdown-footnotes bie 0.1.1
markdown-mermaid bie 1.29.0
markdown-preview-github-styles bie 2.2.0
markdown-yaml-preamble bie 0.1.0
cerebras-chat Cer 0.1.17
ruff cha 2025.32.0
esbuild-problem-matchers con 0.0.3
kusto don 0.5.4
typescript-notebook don 2.0.6
gitlens eam 2025.12.1204
EditorConfig Edi 0.17.4
prettier-vscode esb 11.0.2
codespaces Git 1.18.4
copilot-chat Git 0.36.2025121203
vscode-pull-request-github Git 0.125.2025121213
vscode-pr-pinger jri 0.0.6
vscode-tree-sitter-query jri 0.0.6
vscode-azureresourcegroups ms- 0.11.7
playwright ms- 1.1.17
debugpy ms- 2025.17.2025121201
python ms- 2025.20.0
vscode-pylance ms- 2025.10.100
vscode-python-envs ms- 1.15.13461014
datawrangler ms- 1.24.0
jupyter ms- 2025.10.2025101002
jupyter-keymap ms- 1.1.2
jupyter-renderers ms- 1.3.2025062701
vscode-jupyter-cell-tags ms- 0.1.9
vscode-jupyter-slideshow ms- 0.1.6
remote-containers ms- 0.435.0
remote-ssh ms- 0.123.2025121115
remote-ssh-edit ms- 0.87.0
debug-value-editor ms- 0.2.2
extension-test-runner ms- 0.0.12
remote-explorer ms- 0.6.2025081809
remote-server ms- 1.6.2025102109
ts-file-path-support ms- 1.0.0
vscode-github-issue-notebooks ms- 0.0.134
vscode-speech ms- 0.16.0
web-editors ms- 0.3.0
chatgpt ope 0.5.51
lulu reb 0.0.3
toggle reb 0.0.2
vscode-yaml red 1.19.1
explorer vit 1.36.0

(4 theme extensions excluded)

A/B Experiments 
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pythonvspyt551:31249597
nativeloc1:31118317
dwcopilot:31158714
dwoutputs:31242946
copilot_t_ci:31333650
g012b348:31231168
pythonrdcb7:31268811
pythonpcpt1:31399616
6518g693:31302842
82j33506:31327384
63221493:31336333
envsactivate1:31349248
editstats-enabled:31346256
cloudbuttont:31366566
aihoversummaries_t:31413033
todos-1:31405333
3efgi100_wstrepl:31403338
trigger-command-fix:31379601
use-responses-api:31390341
je187915:31401257
nes-next-cursor-1104-new-ux:31434434
3i15c187:31419923
metis_rerank_treatment1:31411021
terminalsuggestenabled:31421703
none:31433635
cp_cls_c_966_ss:31426491
chatvisible:31417128
a9239246:31426643
c0683394:31426860
find_all_ref_in_bg_t:31420845
8ddb8369:31423616
478ah919:31426749
ge8j1254_inline_auto_hint_haiku:31426887
a5gib710:31434435
5j92g670_sonnet:31434465
nes-joint-1b:31433610
7ig2g208:31429686
anthropic_thinking_t:31427198
406hc587_ask_agent:31428392
cp_cls_c_1081:31433293
copilot-nes-oct-trt:31432609

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@rebornix
Add newline after "Changes migrated to worktree" message to fix spaci…
57a1744 
…ng issue

Co-authored-by: rebornix <876920+rebornix@users.noreply.github.com>
Copilot AI changed the title [WIP] Fix missing space in background agent delegation message Fix missing space in background agent delegation message Dec 12, 2025
Copilot AI requested a review from rebornix December 12, 2025 19:10
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nit: background agent delegation message

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