Slash Commands

Inside a review thread, ask Vizzini about specific lines. Each command sends the model only the hunks you selected and the thread so far, nothing else from the diff.

Command	Target	Answer
/explain FILE:START-END [question]	a line or range	A Markdown explanation of what the lines do and why they changed
/refactor FILE:START-END [goal]	a line or range	Replacement code that stays inside the selection
/docstrings FILE [note]	a file	Documentation comments for changed declarations, comments only
/reconsider FILE:START-END [argument]	the lines of a disputed finding	A verdict, withdrawn or stands, with the reasons (only in vizzini-bot’s finding threads)

Line ranges use new-file numbers. a.go:44, a.go:44-45 and GitHub-style a.go:L44-L45 all work.

From mrman (Go)

cmd, err := reviewer.ParseCommand("/explain internal/store/users.go:44-45 is this injectable?")
if err != nil {
  return err // errors.Is(err, reviewer.ErrBadCommand)
}
res, err := engine.RunCommand(ctx, patch, cmd, []reviewer.ThreadMessage{
  {Author: "alice", Body: "Is this safe?"},
})
thread.Append(reviewer.FormatCommandResult(res))

From the CLI

git diff main...HEAD | pr-review --mode command \
  --command "/refactor internal/store/users.go:45-46 bind the parameter" \
  --thread thread.json          # optional: [{"author": "...", "body": "..."}]

Guarantees

• Scoped. If the file isn’t in the diff, or the range has no changed lines, the command fails before any request is made.
• Validated. /explain answers must match #Explanation, /refactor and /docstrings must match #ImproveOutput, and /reconsider must match #Reconsideration.
• Anchored. Suggestions must sit in the scoped hunks, and a /refactor suggestion that reaches outside the selection is sent back for repair.
• Bounded. Only the newest thread messages that fit 1500 tokens are sent.