diff --git a/HANDOFF.md b/HANDOFF.md
index c36141e..79fca04 100644
--- a/HANDOFF.md
+++ b/HANDOFF.md
@@ -364,6 +364,27 @@ Clear the intro first: `document.getElementById('intro')?.remove()`.
    ORIGINAL lowercase name, which is why it is easy to miss. Boss frames are `z_boss*` now. Use
    all-lowercase, whole-word names.
 
+9. **The prompt sets the ART RESOLUTION, and it is easy to set it wrong.** Sheets asked for "big
+   chunky pixel blocks about 8 screen pixels across" and "flat blocks of colour, no shading" came
+   back coarse — the generator obeys that literally, and Oliver reads it instantly as "waaaay lower
+   resolution than z_mach2". Ask instead for HIGH resolution: *"build each figure out of roughly 90
+   to 110 pixels of height instead of the reference's 40"*, then enumerate what to spend it on —
+   teeth, sunken eyes, individual fingers, seams, hems, folds, frayed edges, laced shoes, four or
+   five shades per material with hatched shading. `assets/_regen.py` carries the working style block.
+10. **`assets/_regen.py` + `_regen_batches.json` redraw a whole character end to end**: reference
+   sheet from the sprites in the repo -> generate -> `_fine.py` -> colour-match onto what it
+   replaces -> install, with three automatic retries. It REFUSES to install a bad sheet: wrong frame
+   count, any figure touching a canvas edge (that is the bug that clipped z_f1), or a redraw that is
+   not at least 1.25x finer by inner-edge density. `--list` shows the batches, `--all` runs them.
+11. **`assets/_fine.py` is the slicer for detailed art.** `_slice.py` resamples NEAREST, which is
+   right for chunky art and shreds fine art at a non-integer ratio. `_fine.py` snaps to the
+   generator's own art-pixel grid, common-scales in ART pixels off a chosen `--anchor` frame (so a
+   smash with the arm overhead stays legitimately taller), quantises back to the sheet's palette, and
+   de-fringes the key colour twice — the generator does not always return a pure magenta and the halo
+   survives as a rim on a green court.
+12. **Two-row "style reference / redraw this" input does NOT work.** The model returns both rows and
+   invents a background. Describe the target detail level in words instead.
+
 Known generator quirks, all still true:
 - It sometimes ignores the magenta (harmless — the key uses the corner colour).
 - It draws near-identical animation frames unless you describe strongly contrasted poses.