feat(ai-claude-code): add session forking support #16667
Merged
+9
−1
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Add automatic session forking when users edit requests in Claude Code chat. This allows exploring alternative conversation paths while preserving the original conversation thread. Implementation: - Add forkSession option to ClaudeCodeOptions interface - Add isEditRequest() helper to detect edited requests via referencedRequestId - Automatically fork sessions when editing requests with existing session IDs - Maintain backward compatibility: normal continuations use same session The feature leverages Theia's existing chat hierarchy infrastructure where referencedRequestId is set when users edit requests. When both a previous session ID exists and the request is an edit, the Claude Agent SDK's forkSession option is enabled to create a new session branch. Fixes #16502
github-project-automation
bot
moved this from Waiting on reviewers
to Needs merge
in PR Backlog
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What it does
Add automatic session forking when users edit requests in Claude Code chat. This allows exploring alternative conversation paths while preserving the original conversation thread.
Implementation:
The feature leverages Theia's existing chat hierarchy infrastructure where referencedRequestId is set when users edit requests. When both a previous session ID exists and the request is an edit, the Claude Agent SDK's forkSession option is enabled to create a new session branch.
Fixes #16502
How to test
Screencast.from.2025-11-26.22-13-11.mp4
Follow-ups
Breaking changes
Attribution
Review checklist
nlsservice (for details, please see the Internationalization/Localization section in the Coding Guidelines)Reminder for reviewers