Optimize agent mode instructions handling for efficiency#316152
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Pull request overview
This PR aims to optimize Copilot CLI chat history reconstruction by reducing per-turn agent mode-instructions resolution work when rebuilding stored request metadata for a session.
Changes:
- Replaces per-request agent/mode-instructions resolution with a single
defaultModeInstructionsvalue. - Adds inline comments explaining the intent to avoid resolving agents for older requests.
Show a summary per file
| File | Description |
|---|---|
| extensions/copilot/src/extension/chatSessions/copilotcli/node/copilotcliSessionService.ts | Simplifies mode-instructions selection while building the request-details lookup for history reconstruction. |
Copilot's findings
Comments suppressed due to low confidence (1)
extensions/copilot/src/extension/chatSessions/copilotcli/node/copilotcliSessionService.ts:1054
- Grammar: “Agents from older requests isn't useful” should be “aren't useful”. Also consider rewording the comment to accurately reflect the behavior (the code currently applies
defaultModeInstructions, not necessarily a “custom agent from last request”).
// Agents from older requests isn't useful, hence to save time.
// Re-use the same custom agent from last request for all previous requests.
- Files reviewed: 1/1 changed files
- Comments generated: 2
Contributor
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Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
dmitrivMS
approved these changes
May 13, 2026
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