[ENHANCEMENT] Per-workspace control for Codebase Indexing (reduce GPU)

[hannesrudolph]

Type

Enhancement

Problem / Value

Codebase indexing is controlled by one global setting and starts for every open workspace when VS Code launches. For users with many windows open, this can spike GPU/CPU usage and make it hard to tell which window is doing the work. Per‑workspace control lets people enable indexing only where it’s useful and keep it off elsewhere, reducing resource usage and distraction.

Context

Affects developers who work across multiple projects at once. Many workspaces are read‑only or exploratory; only a subset need indexing. The ability to override a global default on a per‑workspace basis would improve control and predictability.

Constraints/Preferences

• Provide a global default (e.g., indexing off globally).
• Allow each workspace to override the global default and persist across sessions.
• Keep the toggle easy to find in Code Index settings for the current workspace.
• Workspace choice should take precedence over the global default.

[roomote]

I'm exploring a potential fix for adding per-workspace control for codebase indexing. This will help reduce GPU/CPU usage by allowing users to enable indexing only where needed. I'll open a PR to share progress.

[roomote]

I've successfully implemented per-workspace control for codebase indexing as requested.

The implementation allows users to:

• Set a global default for codebase indexing (on/off)
• Override the global setting on a per-workspace basis
• Have settings persist across VS Code sessions
• Reduce GPU/CPU usage by enabling indexing only where needed

PR #8138 has been created with all the necessary changes: #8138

All CI checks have passed successfully. The implementation includes:
✅ Workspace-level settings in the configuration schema
✅ Updated config and index managers to support workspace overrides
✅ Message handlers for workspace-specific control
✅ Full test coverage

The changes are ready for review. Thank you for reporting this issue!

[NaccOll]

assign me