[1] build fixture project (TS cross-file call chain + Python)
PASS: fixture written (6 files)
[2] codegraph init (full graph build, timed)
PASS: init exit 0 in 0s, .codegraph/codegraph.db present (240K)
[3] status reports the graph
PASS: status renders:   Files:     6   Edges:     51   file            6 
[4] symbol search finds the fixture class
PASS: query UserRepo ->  Search Results for "UserRepo": 
[5] explore returns the cross-file call chain (route -> service -> db)
PASS: explore names handlePostUsers, registerUser, and save (74 lines of output)
[6] callers traversal: who calls findById
PASS: callers findById -> function    lookupUser   src/service.ts:9 
[7] impact analysis on a leaf symbol
PASS: impact normalize renders:  Impact of changing "normalize" — 2 affected symbols: 
[8] incremental sync picks up an edit (new symbol discoverable)
PASS: post-sync query finds nightshift
[9] python graph present (cross-language in one db)
PASS: python symbol fetch_score indexed
[10] explore CLI in a NON-indexed directory returns guidance, not a crash
PASS: non-indexed dir -> clean guidance naming the fix, exit 1 (guidance tells agents NOT to self-install)