Add chat tip for /fork conversation feature

[Copilot]

Adds a chat tip informing users about the /fork slash command for branching conversations to explore different approaches without losing original context.

• New tip.forkConversation entry in TIP_CATALOG
• Auto-excluded via excludeWhenCommandsExecuted once workbench.action.chat.forkConversation has been invoked (covers both /fork slash command and checkpoint context menu usage)

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• disallowed.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --crashpad-handler-pid=8742 --enable-crash-reporter=149764aa-8145-4c84-977e-4d2049303b8d,no_channel --user-data-dir=/tmp/vscode-tests-1772136808069 --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,12516444325173938785,3839827853706520406,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708989122997041 bin/node Map --inlineSoursh false --sourceMap sh (dns block)
  • Triggering command: .build/electron/code-oss .build/electron/code-oss test/unit/electron/index.js --crash-reporter-directory=/home/REDACTED/work/vscode/vscode/.build/crashes src/vs/workbench/contrib/chat/test/browser/chatTipService.test.ts n/ts�� /vscode/vscode/extensions/json-lfalse config.json preview-linux-x64/lib/tsgo cation/tsconfig.sh (dns block)
• example.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --crashpad-handler-pid=8742 --enable-crash-reporter=149764aa-8145-4c84-977e-4d2049303b8d,no_channel --user-data-dir=/tmp/vscode-tests-1772136808069 --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,12516444325173938785,3839827853706520406,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708989122997041 bin/node Map --inlineSoursh false --sourceMap sh (dns block)
  • Triggering command: .build/electron/code-oss .build/electron/code-oss test/unit/electron/index.js --crash-reporter-directory=/home/REDACTED/work/vscode/vscode/.build/crashes src/vs/workbench/contrib/chat/test/browser/chatTipService.test.ts n/ts�� /vscode/vscode/extensions/json-lfalse config.json preview-linux-x64/lib/tsgo cation/tsconfig.sh (dns block)
• mobile.events.data.microsoft.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --crashpad-handler-pid=8742 --enable-crash-reporter=149764aa-8145-4c84-977e-4d2049303b8d,no_channel --user-data-dir=/tmp/vscode-tests-1772136808069 --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,12516444325173938785,3839827853706520406,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708989122997041 bin/node Map --inlineSoursh false --sourceMap sh (dns block)
  • Triggering command: .build/electron/code-oss .build/electron/code-oss test/unit/electron/index.js --crash-reporter-directory=/home/REDACTED/work/vscode/vscode/.build/crashes src/vs/workbench/contrib/chat/test/browser/chatTipService.test.ts n/ts�� /vscode/vscode/extensions/json-lfalse config.json preview-linux-x64/lib/tsgo cation/tsconfig.sh (dns block)
• redirector.gvt1.com
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --crashpad-handler-pid=7114 --enable-crash-reporter=149764aa-8145-4c84-977e-4d2049303b8d,no_channel --user-data-dir=/tmp/vscode-tests-1772136623133 --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,8220714962887833430,9176521139501871309,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708989122997041 (dns block)
  • Triggering command: .build/electron/code-oss .build/electron/code-oss test/unit/electron/index.js --crash-reporter-directory=/home/REDACTED/work/vscode/vscode/.build/crashes src/vs/workbench/contrib/chat/test/browser/chatTipService.test.ts (dns block)
  • Triggering command: /proc/self/exe /proc/self/exe --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --crashpad-handler-pid=8742 --enable-crash-reporter=149764aa-8145-4c84-977e-4d2049303b8d,no_channel --user-data-dir=/tmp/vscode-tests-1772136808069 --shared-files=v8_context_snapshot_data:100 --field-trial-handle=3,i,12516444325173938785,3839827853706520406,262144 --enable-features=PdfUseShowSaveFilePicker --disable-features=LocalNetworkAccessChecks,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --trace-process-track-uuid=3190708989122997041 bin/node Map --inlineSoursh false --sourceMap sh (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Chat Tip: Feature Request: Manual conversation fork (like Claude Code's /fork command)</issue_title>
<issue_description>This issue was created from #291481 labeled chat-showcase.

Please draft a chat tip for the feature described in the source issue.

Source author: @yamadashy</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Chat Tip: Feature Request: Manual conversation fork (like Claude Code's /fork command) #297730

---

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[Copilot]

Pull request overview

Adds a new chat tip to surface the /fork capability, helping users discover how to branch a conversation into a new session without losing the original context.

Changes:

• Adds tip.forkConversation to the chat tip catalog.
• Excludes the tip after workbench.action.chat.forkConversation has been executed.

Comments suppressed due to low confidence (1)

src/vs/workbench/contrib/chat/browser/chatTipCatalog.ts:295

• This tip references the /fork slash command as plain text, so it can’t be clicked and ChatTipService won’t mark the markdown as trusted/enabled for the underlying command. In this catalog, other slash-command tips use a command: link (e.g. /create-* tips) so users can click to invoke the command and the enabled command gets auto-extracted. Consider formatting /fork as a command link to workbench.action.chat.forkConversation (and optionally include its keybinding like the other entries).

		id: 'tip.forkConversation',
		buildMessage() {
			return new MarkdownString(
				localize('tip.forkConversation', "Type /fork to branch the conversation. Explore a different approach without losing the original context.")
			);