Signals 01 — Timeline: loop-detected badge

Three consecutive fs.read calls with identical args. The detector fires loop-detected on the third call; its badge sits in the left gutter, colored red. Signals detected: loop-detected. See docs/upstream-ledger.md L-2.

0ms125ms250ms375ms500msstep 1.0 — read main.ts · 500msstep 1.0 — read main.ts · 500ms · 500mstool: fs.readtool: fs.read · 30mstool: fs.readtool: fs.read · 30mstool: fs.readtool: fs.read · 30msLoop detected · 3 × fs.read · prior seq 11, 12 · (heuristic)