diff --git a/.gitignore b/.gitignore
index 51eb57d..8cf7381 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 cache/
+art/candidates/
 .DS_Store
 __pycache__/
 *.pyc
diff --git a/CLAUDE.md b/CLAUDE.md
index 91ad2e9..c9dfea3 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -17,3 +17,6 @@ Horizons ground truth, the stage plan, and the known traps.
 - `cache/` is serve.py's disk cache — gitignored, never commit it.
 - Keep committed assets lean (~25 MB texture budget) and attribute CC BY sources
   in `assets/textures/CREDITS.md` + the HUD footer.
+- Local unlimited image generation: MODELBEAST at `/Users/m3ultra/Documents/MODELBEAST`
+  (FLUX on-device via `mb` CLI) — see brief §7b. Truth boundary: real worlds get real
+  NASA textures; FLUX only paints the aesthetic layer (splash, grimoire cards, sprites).
diff --git a/SOLARGOD_BRIEF.md b/SOLARGOD_BRIEF.md
index ec3a59d..c5d00a4 100644
--- a/SOLARGOD_BRIEF.md
+++ b/SOLARGOD_BRIEF.md
@@ -291,6 +291,53 @@ JPL — the cache is the rate limiter. Print one boot line like GODSIGH's serve.
   scaled with the parent's draw scale), ring texture, `DoubleSide`, transparent.
   Uranus gets a thin schematic gray ring. Tilt with the parent's axial tilt.
 
+## 7b. Generated art — the MODELBEAST pipeline
+
+The M3 Ultra runs **MODELBEAST** (`/Users/m3ultra/Documents/MODELBEAST`, web UI
+`http://localhost:8777`, tailnet `http://100.89.131.57:8777`) — a local job
+queue/load manager with an on-device FLUX operator (`flux_local`, mflux/MLX,
+`flux2-klein-4b` ungated, seed-reproducible, **free and unlimited**). Drive it
+headless with the `mb` CLI (see `MODELBEAST/AGENTS.md` for the full reference):
+
+```sh
+export MB_HOST=http://localhost:8777 MB_TOKEN=mbt_...   # token: ⚙ Settings → Users
+# house workflow — run 5 seeds, pick the best:
+for S in 1 2 3 4 5; do
+  ./mb run flux_local -p prompt="$PROMPT" -p model=flux2-klein-4b \
+    -p seed=$S -p width=1024 -p height=1024 --wait --download art/candidates/
+done
+```
+
+The `gpu` lane runs one job at a time — queue all 5 and wait, don't spam retries
+on `queued`. Finish assets with `fal_bg_remove` (alpha cutouts for sprites) and
+`fal_upscale`/`seedvr2_upscale` where 1024 isn't enough. If `MB_TOKEN` isn't
+available in the session, generate nothing and leave a TODO list of prompts in
+`assets/art/PROMPTS.md` instead — never block a stage on art.
+
+**The truth boundary (non-negotiable):** SOLARGOD is a scientific instrument.
+Real worlds get **real data textures** (§7 — NASA/Solar System Scope maps); FLUX
+must never invent the surface of Mars or the face of Europa. Generated art owns
+the *aesthetic* layer only, always visually distinct from data:
+
+- **Splash/boot screen** (Stage 0, optional polish): one hero image, brass-and-void
+  observatory aesthetic to match the god-app family.
+- **Grimoire illustrations** (Stage 6): one stylized portrait per body for the info
+  panel — engraving/astrolabe style, clearly *art*, framed separately from the
+  rendered planet. ~800×800, 5-seed runs, pick best, note chosen seed+prompt in
+  `assets/art/PROMPTS.md` so any card can be regenerated in-style.
+- **Effect sprites**: comet tail/coma, sun glow, spacecraft glyph icons — generate,
+  cutout via `fal_bg_remove`, save as alpha PNGs.
+- **Optional "DREAM skybox"** toggle (off by default): a FLUX nebula panorama as an
+  alternate sky. The *default* sky stays the real Milky Way panorama — from inside
+  the solar system the real sky is a data statement too. FLUX doesn't produce
+  seamless 2:1 equirects reliably; hide the seam behind the anti-camera side or
+  mirror-wrap, and don't burn time here.
+
+Log every shipped asset in `assets/art/PROMPTS.md` (prompt, model, seed, operator
+chain) — reproducibility is the house rule for art too. The §7 texture budget
+(~25 MB committed) covers generated art as well; art candidates/rejects stay in
+`art/candidates/` (gitignore it).
+
 ## 8. Physical data (`bodies.js`)
 
 Registry keyed by body id with: `name, type, radiusKm, axialTiltDeg, rotationHours
@@ -372,7 +419,8 @@ Branch per stage; gate before merge; one commit per coherent step.
   sphere, not a line); Halley's aphelion beyond Neptune's orbit… in the compressed
   view, near it.
 - **Stage 6 — ALMANAC** (knowing): info panel with live facts (§5), per-body prose
-  blurbs (2–3 sentences, hand-written, grimoire voice), Earth Easter egg — focusing
+  blurbs (2–3 sentences, hand-written, grimoire voice), grimoire illustrations via
+  MODELBEAST (§7b — skip gracefully if no token), Earth Easter egg — focusing
   Earth shows "▸ open GODSIGH world view" linking `http://127.0.0.1:8137`, README.md
   with the full GODSIGH-style layer table and screenshots (`docs/`), HUD credits.
   Gate: every clickable body has a card; README quickstart works from a fresh clone.