REPL

The global scripting variable is db — your active DbContext instance.

Input

Enter — next line (… continuation)
; at end of line or alone on a line — run snippet
Shift+Enter — newline inside snippet
Tab — completion
↑ / ↓ — history

Commands

Command	Description
`:help`	Command list
`:about`	Version and session paths
`:tables`	DbSets and row counts
`:describe <entity>`	Entity property sheet
`:dbinfo`	Provider, connection, server version
`:dblog`	Toggle SQL logging (sql-only or verbose)
`:plan`	EXPLAIN on last SQL
`:scan lite` / `:scan deep`	Project LINQ scan
`:stats`	Session evaluation statistics
`:export csv\|json`	Export last result
`:benchmark [N]`	Run last snippet N times (default 5); min/avg/max/p95
`:compare set`	Set baseline for comparison
`:compare`	Diff baseline vs last run, or multi-variant group after `#[Compare]`
`:compare clear`	Clear baseline and compare group
`:chart compare\|benchmark\|breakdown`	ASCII timing charts
`:reset`	Clear script variables (`db` unchanged)
`:quit`	Exit

Script attributes

Instead of :compare or :benchmark, use attribute lines in a script. They work in the REPL, efvibe -e, and efvibe serve eval (including Studio Run all).

#[Compare("With tracking")]
db.Products.OrderBy(p => p.Name).Take(10).ToList();

#[Compare("No tracking")]
db.Products.AsNoTracking().OrderBy(p => p.Name).Take(10).ToList();

#[Benchmark(10)]
db.Products.AsNoTracking().Count();

See features.md for full syntax.

Session files

Under <workspace>/<ProjectName>/<DbContextName>/:

myefvibe-scan-lite.json / myefvibe-scan-deep.json
myefvibe-scan-dismissals.json / myefvibe-scan-notes.json
myefvibe-export-*.csv/json