Copilot - add session parentId to metadata

[lszomoru]

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[github-actions]

Screenshot Changes

Base: 334c5b7f Current: 2b19b5b4

Changed (1)

agentSessionsViewer/CompletedUnread/Dark

Before	After

[Copilot]

Pull request overview

Adds support for propagating and persisting a “parent session id” for Copilot CLI-backed chat sessions, so that child/background sessions can be linked back to their originating session.

Changes:

• Thread parentSessionId from initialSessionOptions into Copilot CLI session creation (sessionParentId).
• Persist parentSessionId in the chat session metadata store and expose it via new store APIs.
• Include sessionParentId in session metadata returned by the Copilot CLI chat session item/content providers.

Show a summary per file

File	Description
extensions/copilot/src/extension/chatSessions/vscode-node/copilotCLIChatSessionsContribution.ts	Parses parentSessionId from initial options and passes it into session creation; includes parent id in session item metadata.
extensions/copilot/src/extension/chatSessions/vscode-node/copilotCLIChatSessions.ts	Adds sessionParentId into metadata returned for chat session content.
extensions/copilot/src/extension/chatSessions/vscode-node/chatSessionMetadataStoreImpl.ts	Implements setSessionParentId / getSessionParentId backed by the metadata file.
extensions/copilot/src/extension/chatSessions/copilotcli/node/copilotcliSessionService.ts	Accepts sessionParentId on session creation options and stores it in metadata.
extensions/copilot/src/extension/chatSessions/common/chatSessionMetadataStore.ts	Extends IChatSessionMetadataStore API surface with parent-id getters/setters.

Copilot's findings

• Files reviewed: 6/6 changed files
• Comments generated: 3