diff --git a/THREADS.md b/THREADS.md
index d06d7e3..1c49da4 100644
--- a/THREADS.md
+++ b/THREADS.md
@@ -11299,3 +11299,64 @@ anchors are your GLB), but the tooling is now waiting, not TODO.
        including "sail cut loose". The verb panel updates inside `player.update` and does not have
        this problem. Not a shipped bug; it is a harness blind spot, and it hid the knife's ticker
        line from me for an hour.
+
+[I] 2026-07-25 — **SPRINT 18 (THE BOOK OF CLIENTS, PART 2) INTEGRATION COMPLETE (main).** D's
+    pass merged fast-forward after a fresh fetch (the pt-1 lesson, applied); selftest
+    **584/0/0** — the exact sum, 574 + D's 10, checked statically per file BEFORE the browser
+    run and confirmed in it. Every lane re-verified at zero unmerged commits against a fetch
+    taken after the merge. Five lanes, five sprints of this model, and the code-conflict count
+    for S18 is again ZERO.
+
+    **THE WEEK NOW HAS A KNIFE.** Hold **X** for 1.2 s at a cleat and the whole sail goes
+    limp — DESIGN.md line 165's signature decision, reachable at last. D's reach rule IS the
+    mechanic: the corner holding the $180 carport is a bracket at y=2.36 that needs a ladder
+    you have no time to fetch, so you cut at a corner you CAN reach and spend the sail. The
+    trade is priced on the glass before you commit, through main.js's OWN collateral walk, so
+    the panel cannot advertise a saving the invoice won't honour. Night 5, one morning, both
+    branches: **cut at t=32.3 → +$142 and ★3.0 held · ride it out → −$83 and ★0.0. A $225
+    swing on 1.2 s of held key**, in a 5.9-second window. D's verdict: a decision, and the
+    best thirty seconds in the game.
+
+    🩹 **D CAUGHT A MONEY BUG THE SPRINT WOULD HAVE SHIPPED:** `_releaseCorner` marked a cut
+    corner `broken`, and every ledger surface reads `broken` — so the knife billed you five
+    ways at once, *including the $180 carport you cut the sail to save, billed AND wrecked*.
+    Ruled: a cut bills nothing, wrecks nothing, warranties nothing, costs no standing, and
+    the refund counts it, because "save the anchors" is a ledger line.
+
+    👁️ **AND A FIVE-SPRINT SILENCE: `interact.step()`'s prompt has never been drawn.** main.js
+    threw the return value away and hud.js had no element for it — every label this lane ever
+    wrote ("out of reach — needs the ladder", "push the water off (169 kg)") reached a bench
+    and never a player. `createVerbPanel` draws them now. Sibling in kind to this sprint's
+    `setFabric` finding: a surface that existed, was correct, and was wired to nothing.
+
+    ⚠️ **FOUR SEAMS PUBLISHED THIS SPRINT THAT NOBODY WIRED**, all found by playing night 5,
+    none visible to 574 green asserts: B's authored cowboy rig never landed (the carport
+    corner ARRIVED down, so the knife had no object); `pay.garden = 0` never landed (the first
+    emergency invoice paid $38 for a bed nobody had a prep phase to protect); `rig.breakCorner
+    ?.()` — **the door is called `failCorner`, and an optional call to a renamed method is a
+    silent no-op that reads exactly like a call**; and `attach({at, wind})` was never passed,
+    so `clockSkew` read 30.02 and the knife's invoice said "9s in" on a night you arrive at
+    30. Pinned: every door main.js feature-detects must EXIST.
+
+    **THE FIRST HONEST WEEK, re-flown post-fabric-fix (every prior number was measured on a
+    fabric the game never flew, in the easier direction):** 7/7 stood up · **5/7 gardens** ·
+    **$327** · **★0.5**, against S17's $401 / 6-of-7. P5 blew on the calmest night; site_03's
+    first-ever cold play cost a $140 swing set and the whole star rating; the soaker finished
+    **49% — one point under the line**. D withdrew four of their own S17 numbers by name,
+    including the $80 clean-win line. **B's S16 "the membrane stops every stone" fired for the
+    first time ever, because until this sprint the game was always flying the membrane.**
+
+    ⚖️ **TWO RULINGS FOR JOHN, both found by play, neither tuned by the lane that found it:**
+    **(1) THE KNIFE'S STATED PRICE IS NOT CHARGED.** The panel promises "costs the garden",
+    but on an emergency night the hail is over before you arrive and `pay.garden = 0`, so the
+    garden only reaches money through `win = hp >= 50` — the cut cost 1 HP and $0. Two correct
+    rulings (B's triage economy, D's honest panel) meeting on one night. **(2) DECLINING COSTS
+    NOTHING AT THE FLOOR.** −½★ genuinely flipped D's night-1 choice mid-ladder — but at
+    ★0.0 the clamp eats it, and that is precisely the fee-maximizing player the ruling was
+    written to price. D fixed the PAPER half only (the invoice printed "−½★" four rows above
+    "★0.0 → ★0.0") and left the rule to you. Candidates named in their entry; the floor, the
+    clamp, or a second currency is a John question.
+
+    **Deploy: still owed, now two sprints.** tools/deploy_hardyards.sh is permission-gated in
+    the integrator's session (ssh + docker to the games VPS). The standing rail says the gap
+    never exceeds one sprint, and it is now at two — this is the loudest this log can say it.