Inline chat and the selection commands

The four selection commands

Select code and right-click. The context menu has a Sirius group:

Command	What is sent
Sirius: Explain Selected Code	Explain this code + the selection
Sirius: Fix Errors in Selection	Find and fix the problems in this code + the selection
Sirius: Write Tests for Selection	Write tests for this code + the selection
Sirius: Refactor Selection	Refactor this code, explaining what you changed and why + the selection

The selection goes along as a fenced block tagged with the file’s language, together with the usual context — the file name and where the selection sits — and the request is submitted straight away to the chat view, in whatever mode and model the chat is on. The answer, and any edits, appear there with the same diffs, Keep / Undo and checkpoints as any chat turn. The four commands are also in the Command Palette; without a selection they send only the instruction, which still carries the active file as context.

Fix Errors asks the model to find the problems itself; it does not pass the Problems panel along. If you want the model to see the diagnostics, ask in the chat — the agent’s problems tool reads them.

Inline chat

Ctrl+I (⌘+I) opens the editor’s inline chat at the cursor — a small input inside the editor whose edits land in place. It is the workbench’s own feature and it uses the editor’s language-model plumbing, where Sirius registers its models.

Caution

Inline chat against Sirius’s models was not exercised in the build verification for 1.118.7; the chat view and the selection commands are the proven paths. If inline chat does nothing for you, use the selection commands or the chat and tell us.