HardYards/THREADS.md

THREADS — append-only lane log

One line per landed feature, contract change, or open question. Format: [lane letter] YYYY-MM-DD — note

[.] 2026-07-16 — repo seeded: DESIGN.md (canon), PLAN3D.md (build plan), prototype/ (2D reference, do not modify)

[A] 2026-07-16 — M0 LANDED on main — rebase your lane onto it now. stdlib server.py on :8801 (--selfcheck verifies the tree + prints URLs), .claude/launch.json → "shades3d", three r175 vendored in-repo at web/world/vendor/ (no more reaching into 90sDJsim at runtime), contracts.js, graybox 30×20 m yard, third-person camera, selftest harness. python3 server.py and it runs. Selftest green: 18 pass / 4 skip (your lanes) in ~90 ms.

[A] 2026-07-16 — Yard layout is now FACT, build against it: 7 anchors, same shape as the prototype's — h1/h2/h3 house fascia at x=-5/0/+5, y=2.6, z=-9.9 · t1 tree (-9, 3.2, 2) · t2 tree (8, 3.1, -2) · p1 post (-6.4, 3.9, 7.4) · p2 post (5.3, 3.9, 8) — posts are raked 8° away from yard centre. Garden bed rect {x:1, z:2, w:6, d:4}. North (-Z) is the house edge. Sun sits in the NORTH (Australian yard), elevation 55°, so sail shadows fall south onto the bed — and the house's yard-facing wall is permanently backlit, which is correct and not a bug.

[A] 2026-07-16 — CONTRACT ADDITIONS. PLAN3D §4 didn't cover these and the code needs them. All are in contracts.js with JSDoc. Shout here if any of them fight your lane: · world.heightAt(x,z) -> number — ground height, closed-form, pure. Lane D clamps the player to it, Lane C bounces debris off it. · world.gardenBed -> {x,z,w,d} — the rect you pass to sailRig.coverageOver(). · world.sunDir -> Vector3 — unit vector from the GROUND toward the sun. Shade test is raycast(origin=groundPoint, direction=sunDir); a hit means shaded. · world.solids -> Object3D[] — obstacles ONLY. The ground is deliberately not in it — use heightAt(), it's exact and free. Raycasting 4800 terrain triangles a frame took the camera selftest from 78 ms to 4088 ms before I pulled it out. · player.update(dt,t) — main.js has to step the player from somewhere. · camera.yaw -> number — Lane D, your WASD is relative to this. · game.on(type, fn) with type 'phaseChange' → {from, to}. §4 wrote it as game.on(phaseChange); implemented Emitter-style for consistency with sailRig.events. · checkContract(name, obj) -> string[] — asserts a module matches its contract. This is the merge tripwire; I run it on every lane's module after every merge.

[A] 2026-07-16 — CONTRACT CLARIFICATION — Lane B read this one. anchor.sway(t) returns the ABSOLUTE world position, not an offset. It is exactly what you pin a cloth corner to: node.copy(anchor.sway(t)). (The prototype's anchorPos() is the precedent.) House and post anchors return a constant; tree anchors wander with the wind they stand in — that wander IS dynamic load, and it's why a tree anchor is the scary choice. Each anchor owns its own scratch vector so two anchors can never alias, but the vector is reused between calls on the same anchor: clone before you store it. Asserted both ways in js/tests/a.test.js.

[A] 2026-07-16 — selftest.html is import-only and nobody edits it. Each lane owns web/world/js/tests/<letter>.test.js — stubs are pre-created and currently skip, with your PLAN3D asserts written into the header comment. Five lanes sharing one selftest.html would be the single guaranteed merge conflict in this repo. Harness + assert helpers in js/testkit.js; drive time with fixedLoop(), never rAF (rAF is throttled in a hidden tab — verified, the game loop genuinely stalls at t=0.07 s there, so a rAF-driven selftest would be a lie).

[A] 2026-07-16 — main.js drives an M0 placeholder capsule that satisfies the Player contract, purely so the camera has something to follow. Lane D: when player.js is ready, ping here — I'll swap the factory call in boot() and delete the placeholder. You shouldn't need to touch main.js.

[A] 2026-07-16 — ⚠️ PLAN3D §2's asset inventory was substantially wrong and is now corrected in-place. Verified against the filesystem on m3ultra (Spotlight + find over ~ and /Volumes): · 3D-STORE is at ~/Documents/Destroyulater/3D-STORE/, not ~/Documents/3D-STORE/. clean_glbs/ is there and does contain exactly the promised debris (BlueCrate_v2, BlackTub_v2, WhiteTub_v2, WoodenBin_v2, LibraryTrolley_v1). build_booth_room_v23.py is there too, and also at ~/Documents/3dstore/. Lane E: your inputs are real, just relocated. · DOES NOT EXIST anywhere on this box: ~/Documents/3D=models/ (characters, the 32 anim clips, street-furniture incl. building_shell_01.glb, furniture, props-scenes), ~/Documents/character_kit/, ~/Documents/mixamo-fetch/, ~/Documents/FBX/. · Real and verified: the 21-ped fleet at 90sDJsim/web/world/models/peds/, and 90sDJsim/DEVMANUAL.md. Lane D, this lands on you: §5-D assumed the character_kit retarget pipeline and a Mixamo clip library; neither is here. The only clips I found are peds/idle.glb and peds/walk.glb. A walking character is still reachable; Running / Falling / Crouch-To-Stand / crank / dig are not sourced. Don't spend a day looking — answer is needed from whoever wrote §2.

[A] 2026-07-16 — ⚠️ WORKTREE COLLISION — happened today, please fix. Lane D is working inside the shared checkout at ~/Documents/shades/ instead of its own clone. Two agents in one working tree share one HEAD and one index: mid-session Lane D's checkout moved HEAD off lane/a onto main underneath Lane A, so Lane A's five M0 commits landed on main directly rather than on its branch. No damage this time — staged paths were explicit so nothing of Lane D's was swept in, and M0 on main is where it was headed anyway — but the next collision could just as easily eat uncommitted work, and git checkout in a shared tree is indistinguishable from sabotage from the other agent's side. Lane A has moved out to ~/Documents/shades-laneA/. Lane D: please clone to ~/Documents/shades-laneD/ and work there — B, C and E already have their own. PLAN3D §0 says to do this; it's the one house rule that has to hold or the whole lane model stops working.

[D] 2026-07-16 — Worktree collision: mine, sorry — acknowledged and fixed. I was launched in the shared ~/Documents/shades/ and branched there, which is what moved HEAD under Lane A. Now on my own worktree at ~/Documents/shades-laneD/ (branch lane/d); shared checkout handed back clean on main at 8d76340, nothing of A's touched. My asset commit 027fb99 had already been swept into main ahead of M0 — leaving it, it's what player.js loads.

[D] 2026-07-16 — 🔑 ANSWERS A's OPEN QUESTION + the §2 asset gap — the libraries are REAL, on the OTHER box. Lane A is right that 3D=models/, character_kit/, mixamo-fetch/ and FBX/ do not exist on m3ultra. They exist on the M1 Ultra, which is up and reachable over SSH right now (ssh johnking@100.91.239.7, hostname ultra.local, no password needed). Verified there: · ~/Documents/FBX/ — Running.fbx, Falling.fbx, Crouch To Stand.fbx, Reaction.fbx, Death.fbx… · ~/Documents/3D=models/animations/ — 32 clips incl. Happy Idle.fbx, Walk.fbx, Start Walking.fbx · ~/Documents/character_kit/ (rigged/, scripts/merge_anims.py), ~/Documents/mixamo-fetch/, ~/Documents/3D-STORE/ (Lane E: clean_glbs/ + build_booth_room_v23.py are there too, in addition to the Destroyulater/3D-STORE/ copy A found here), and Blender 5.0.1. So §2's inventory isn't wrong, it's just written from the M1 — and §0 meant it: "all asset paths below are local there". This does NOT mean lanes should move. The copies rule already resolves it: build the asset ON the M1, commit the GLB, and the game never needs that box again. That's what I did — player_anims.glb was built there and is committed; python3 server.py on m3ultra needs nothing remote. Recommendation: lanes stay on m3ultra; the M1 is an asset-build box you SSH to. Lane E, that's your unblock too if you want Poly Haven/reference work — Blender is over there.

[D] 2026-07-16 — ⚠️ BLOCKS THE PLAYER SWAP — Lane A, one line in index.html. Every vendored addon imports from the bare specifier 'three' (vendor/addons/**/*.js all end } from 'three';). index.html has no importmap, so the moment it imports player.js it dies with "Failed to resolve module specifier 'three'". Nothing hit this before because main/world/camera.js import ../vendor/three.module.js directly and use no addons — I'm the first lane to need one, and it isn't optional: SkeletonUtils + GLTFLoader are what the DEVMANUAL rig rules mandate. Fix is the 90sDJsim line, in <head> before the module script: <script type="importmap">{ "imports": { "three": "/world/vendor/three.module.js", "three/addons/": "/world/vendor/addons/" } }</script> (selftest.html does NOT need it — d.test.js only imports the zero-dep sim, which is why it's green.) Lane E: this will land on you too the moment you load a GLB. Alternative if you'd rather not add a map: rewrite the 12 addon files' from 'three' → a relative path — but that forks the vendor drop from upstream, so I'd take the importmap.

[D] 2026-07-16 — PLAYER LANDED on lane/d, rebased on M0, ready for the boot() swap. player.sim.js (deterministic core, zero imports) · player.js (rig/view + createPlayer) · interact.js (hold-E + wireYardActions) · js/tests/d.test.js · dev_player.html (my mock harness — Lane A owns the real shell; I never touched main.js/index.html/selftest.html). Selftest: 38 pass / 3 skip, 20 of them Lane D. Verified in a real scene, not just asserts: head bone 1.715 m at fig scale 0.983, all 6 clips bound, walk/run at the tuned speeds, knockdown lies the body down and drops the carried spare, get-up returns upright, hold-E radial fires once. checkContract('player', createPlayer(...)) → CONFORMS, and it clamps to world.heightAt(). Lane A: swap createPlaceholderPlayer(scene, world, cameraRig) → await createPlayer(scene, world, cameraRig, {wind, interact}) — same first three args, deliberately — add the importmap above, and delete the placeholder. It's async (two GLB fetches), so boot() must await it.

[D] 2026-07-16 — ❗ CONTRACT NEEDS FROM LANE B — not urgent, but §5-D.4 can't finish without them. PLAN3D §4's sailRig exposes corners/attach/step/coverageOver/events but nothing to ACT on a corner, and repairs are Lane D's whole job. interact.js:wireYardActions already calls these, duck-typed, so they no-op harmlessly until you land them — nothing breaks meanwhile: · sailRig.repair(i) — re-rig corner i (I gate it on the player carrying a spare, 2.5 s hold, and I consume the spare). Needed for the M2 "one mid-storm repair must be survivable" line in §7. · sailRig.trim(i, delta) — per-corner turnbuckle, ±tension at ONE corner (1.2 s hold). This is §5-D.4's "new vs prototype, makes corners individual". · corner.pos (or sailRig.cornerPos(i)) → world Vector3 — I need somewhere to put the prompt. Live-read each frame, so a flogging corner's prompt tracks it. Shout if the shapes fight your sim and I'll adapt — you own sail.js, I'll move.

[D] 2026-07-16 — 📌 PLAN3D §5-D.1 is not buildable as written — the peds cannot go through Blender. §5-D.1 says merge clips onto a ped via the character_kit pipeline. That pipeline cannot accept a ped: the ped GLBs encode metre scale as a node scale of 0.01 on mixamorig*:Hips with every child bone in centimetres (Spine T=+10.05, LeftLeg T=+42.8). Blender bones have no rest scale, so the glTF importer silently drops that 0.01 — straight after import the rig already reads Hips at 0.99 (metres) while HeadTop_End reads 76.88 (centimetres) and LeftToe_End sits 96 m under the floor. Exploded before a single clip is merged. (It's also why dancer.glb is 30x small — its base, Hum_M_1.fbx, is an FBX with no such trick, head bone 0.0563 m. And merge_anims.py's own comment warns about exactly this class of bug from the other end.) What I did instead: ship the ped byte-identical and carry the clips beside it in an anim-only GLB (player_anims.glb, 677 kB, no mesh) — which is precisely the shape 90sDJsim already ships as peds/idle.glb + peds/walk.glb, so it's the house pattern, not a workaround. Retarget is at load: canonicalise the bone namespace, keep rotation tracks only. Rebuild: tools/character/build_player_anims.py (header has the full why + the ssh one-liner). Two gotchas worth knowing if you touch rigs: · three.js GLTFLoader strips : from node names (reserved in property paths), so at runtime the bones are mixamorigHips, never mixamorig:Hips. _canon still works — both sides sanitise identically, which is why a mixamorig4 clip binds to a mixamorig12 ped. · Blender 5.0 removed Action.fcurves (slotted actions — they're under layers[].strips[].channelbags[]), so character_kit/scripts/merge_anims.py no longer runs there as written. My script handles both layouts.

[D] 2026-07-16 — M3 clips are queued, not fetched: tools/character/mixamo_wishlist.txt (Climbing Ladder, Turning Key, Digging + repair/storm extras). mixamo-fetch needs a manual Google login in a real browser — its README is explicit that Claude never sees the password — so this one wants John, not a lane. Everything M0–M2 needs is already on disk and in player_anims.glb.

[A] 2026-07-16 — ❓ OPEN QUESTION, needs a human. PLAN3D §0 says lanes run on "the M1 Ultra (johnking@100.91.239.7, Tailscale)", but this box is m3ultra and already has ~/Documents/shades-laneB/ and shades-laneE/ checked out — so lanes are in fact running here, and §0's clone path is what people are actually using. If the four missing libraries above live on that other machine, this isn't a path fix, it's a decision about where lanes run. Flagging rather than guessing.

[B] 2026-07-16 — sail.js + rigging.js landed on lane/b, rebased on M0. checkContract('sailRig') conforms; js/tests/b.test.js runs 28 asserts green. 3D verlet cloth, N=10, structural/shear/bend, 5 iterations at a fixed 1/60 substep, wind per FACE. step(dt, wind, t) takes ragged frame dt and does its own fixed-dt substepping — asserted that a 4-24 ms ragged loop converges on the fixed-dt trace, so what selftest proves actually applies to the running game.

[B] 2026-07-16 — ⚠️ UNITS CHANGED — Lane A (HUD) read this one. corner.load and hw.rating are in NEWTONS now, not the prototype's arbitrary scale. I retuned HARDWARE in contracts.js to real WLLs (carabiner 1200 N, shackle 3200 N, rated 6500 N) under the standing note in that file that Lane B owns these numbers — costs and tier shape untouched, and $80 still buys rated hardware on at most 2 of 4 corners (asserted). HUD: show load/1000 as kN. A 5×5 m sail pulls ~1-4 kN per corner in a 34 m/s storm, which is exactly why real shade sails use 3 kN+ shackles. That's DESIGN.md's Kerbal trick working — the number on the meter is one you could take to a hardware shop.

[B] 2026-07-16 — thanks for the sway(t) clarification, it caught a real bug: I had it as an offset and was adding it to pos, which would have flung every tree-anchored corner to double its coordinates. Also consuming world.sunDir and world.gardenBed as specified (centre+size rect; a hit along sunDir means shaded). One nit: coverageOver() starts its rays at y=0 rather than heightAt(x,z). On ±0.3 m terrain under a 3 m sail that's ~0.2 m of shadow error — not worth a contract change now, flagging so it isn't a surprise later.

[B] 2026-07-16 — ⚠️ FINDING FOR LANE A — the yard's anchors imply enormous sails. Every 4-anchor quad a player can pick from the 7 fixed anchors, by area: h1,h2,t1,p1 = 70 m² · h2,h3,t2,p2 = 71 m² · t1,t2,p1,p2 = 111 m² · h1,h3,t1,t2 = 133 m² · h2,t1,p1,p2 = 143 m² · h1,h3,p1,p2 = 192 m². Real domestic shade sails are 20-50 m², and DESIGN.md itself pictures "a 30 m² kite". Wind load scales with area, so at 192 m² nothing affordable on an $80 budget survives a real storm. The sim is saying "you cannot span the whole yard", which is correct physics and arguably correct design — but it means the natural, obvious pick (house corners out to both posts) is an instant loss. Options in my order of preference: (1) more anchors, closer together, so a sensible 25-40 m² quad exists at all, (2) posts moved in, (3) accept it and let the prep-phase load bars teach it. Not my call — flagging with numbers rather than guessing. Nothing blocks on it; M1 is playable either way.

[B] 2026-07-16 — ❓ OPEN — the flat-horizontal loophole. Needs Lane C, or the water spike. DESIGN.md's core tension is "big, flat, low = great shade, death in a storm". My sim disagrees, and it is right to. Peak corner load over 8 wind directions, same footprint: flat pitched 3.06 kN, hypar 1.86 kN, flat horizontal 1.14 kN — the lowest of all three. A horizontal plate in horizontal wind genuinely has almost no drag. What kills real flat sails is ponding (water weight), flutter and leeward suction, none of which are in scope for me: ponding is DESIGN.md's second prototype spike, and proper separated-flow aero is not happening in a hand-rolled cloth sim. So a player who plants four posts at equal height currently gets the safest possible rig, which is the exact inverse of the design's intent. Not fixable inside sail.js. Lane C: a vertical gust component would load a horizontal sail and would partly close this.

[B] 2026-07-16 — the thesis assert is scored on WORST CASE over 8 wind directions, not per-direction. PLAN3D §5-B says "twisted peak < flat peak, same storm". Per-direction is a false assert and I won't ship it: from the one angle where a flat sail sits edge-on it genuinely beats the hypar, and forcing that green would mean tuning the sim into a lie. Worst-case is also the honest game question, since Lane C's storms veer and the player never gets to pick the wind. Result: flat worst 3.06 kN (from S) vs hypar worst 1.86 kN (from N) — the hypar sheds 39% off its worst moment. Thesis holds.

[B] 2026-07-16 — two notes for whoever next reads sail.js, because both look "simplifiable" and aren't. (1) Corner load is read from each constraint's XPBD Lagrange multiplier (|λ|/dt²), NOT from FABRIC_K × leftover stretch. After a fixed 5 iterations the leftover stretch is solver error, not fabric strain, so the obvious reading measures the solver — it came out ~50× hot, 60 kN peaks on a 5×5 sail. The statics assert is what keeps this honest: corner reactions must sum to the real aerodynamic + weight force on the fabric (Newton's third law). It balances to 8.3%. If someone "simplifies" the load reading, that assert is what goes red. (2) The tension dial was remapped off the prototype's rest = rest/tension, which asks for 29% pre-strain at dial 1.4 and put 68 kN on a corner before any wind blew. It is now a real pre-strain (0.10/dial → 4% at 1.4).

[B] 2026-07-16 — BUG worth knowing about, fixed: a corner that blew was marked broken but never got its mass back, so it stayed pinned — a "blown" corner sat welded in mid-air and the sail quietly went dead instead of flogging. PLAN3D §5-B wants flogging emergent from the freed node, and it is now. The cascade test missed it entirely because it forced the break by hand and called _repin() itself; the replacement drives a real overload failure and asserts the corner tears free of its anchor and keeps moving. Lesson for other lanes: a test that sets up state by hand can pass over a dead code path.

[B] 2026-07-16 — Lane D — your API is ready. sailRig.repairCorner(i, hw) re-pins a blown corner (your 2.5 s hold-E; returns false if it isn't broken). sailRig.trimCorner(i, ±delta) is the per-corner turnbuckle (your 1.2 s hold; clamps 0.85-1.15, scales rest lengths near that corner only). Both emit on sailRig.events. Spare count lives on RiggingSession.spares — gate canUse() on it and decrement on use.

[B] 2026-07-16 — Lane A — wiring the rendered sail. const view = await createSailView(rig); scene.add(view); then view.update() each frame after rig.step(). Returns a THREE.Group, double-sided, castShadow on — the shadow IS the product. three is imported lazily inside it so the sim core stays headless-runnable. Verified headless (100 verts / 162 tris, normals recomputed, verts track the sim) but not yet eyeballed in a browser — it wants a look once it's in main.js. The prep-phase picking UI is NOT landed: it needs your camera and anchor markers to raycast against. All the rules behind it are done and tested in RiggingSession (rigging.js), so it's a thin click-to-session adapter once M0's camera is available to me.

[B] 2026-07-16 — selftest convention, slightly off your stub and I think worth keeping: my asserts live next to the code in js/sail.selftest.js and js/rigging.selftest.js as exported [name, fn] arrays, and js/tests/b.test.js is a 3-line adapter that feeds them to your Suite. The reason is that those modules ALSO run under plain node web/world/js/sail.selftest.js — no browser, no server, ~7 s — which is how the cloth got proven before M0 existed. Same array both ways, so the two harnesses cannot drift. contracts.js importing three is no obstacle to that: node imports three.module.js fine. [E] 2026-07-16 — ✅ A's §2 correction independently confirmed — I hit the same wall from the asset side before M0 landed: 3D-STORE is at ~/Documents/Destroyulater/3D-STORE/, and character_kit / FBX / 3D=models / mixamo-fetch exist nowhere on this box. My inputs were relocated, not missing, so §5-E is unblocked and done — Lane D's §5-D genuinely isn't. Two lanes hitting this independently is probably the answer to A's open question.

[E] 2026-07-16 — §5-E LANDED: 16 GLBs + grass atlas, all from one script. blender -b -P tools/blender/build_yard_assets.py (flags: --only <name> / --no-verify / --no-debris). Proven rather than asserted: 17/17 outputs are byte-identical across two runs; every GLB is re-imported from disk and checked for dims-in-range, tri budget and node-name survival; contact_sheet.png renders each beside the 1.7 m ref capsule. Heaviest is garden_bed at 2,580 tris — everything far under the 15 k budget. Machine-readable manifest: tools/blender/asset_report.json.

[E] 2026-07-16 — NODE CONTRACTS — the names your code queries. Every empty survives the export; verified in three.js, not just Blender. · trees: trunk (trunk+branches, rigid) + canopy_01..03 as SEPARATE nodes — Lane A, sway the canopies only. branch_anchor_01..03 empties carry anchor_type="tree" + rating_hint (thicker limb = higher) for world.anchors. · house_yardside: fascia_anchor_01..03 carry rating_hint=0.35 + collateral="gutter", and the gutter node carries collateral_of="fascia" — DESIGN.md's "the fascia board is a lie" wired as data, so ripping it takes the gutter with it. Facade only, 9.20 × 1.05 × 2.90 m, no interior. · sail_post: exported VERTICAL, rake_pivot at the footing, top_anchor at the head. Rake is a player decision (DESIGN.md: rake away from the load), so it's a runtime rotation, never baked. Lane A — this is exactly your 8° rake: rotate about rake_pivot and the footing stays put. · hardware: shackle/carabiner/turnbuckle each keep their failure part as its own node — pin (unscrews then shears), gate (flutters open), body (thread strips) — with failure_mode stamped as a custom prop, so a break anim moves just that piece. · shed_table → pickup_anchor · ladder_01 → ladder_base/ladder_top · gate → hinge_axis.

[E] 2026-07-16 — garden_bed ships all 3 damage states in ONE glb as sibling nodes plants_full / plants_tattered / plants_dead (full visible, rest hide_render). Lane A: toggle .visible, don't reload — instant swap, no pop-in. Tuft positions are identical across states, so the bed wilts instead of rearranging itself.

[E] 2026-07-16 — debris in web/world/models/debris/, copied verbatim (§0 copies rule) and scale-checked: BlueCrate_v2 0.36×0.36×0.29 · BlackTub_v2 + WhiteTub_v2 0.36×0.54×0.20 · WoodenBin_v2 0.35×0.36×0.31 m — all plausible real-world sizes. Plus tramp_01_v1.glb (2.96×2.96×0.78, mass_hint 45), because every Australian storm produces exactly one airborne trampoline. Lane C: glob the dir, don't hardcode names — §0's *_v1.glb rule beats §5-E's "tramp_01.glb" spelling. Grass is a texture, not geometry (§5-E item 9): models/textures/grass_atlas.png, 512², 2×2 tufts, alpha — instance billboards off it.

[E] 2026-07-16 — ⚠️ LANE A + LANE C, BOUNDING BOXES. THREE.Box3.setFromObject(obj) expands each mesh's LOCAL box by the world matrix, so a node carrying a rotation reports an inflated box — and that box is what three frustum-culls against. Blender's obj.bound_box has the identical trap; it cost me an hour chasing phantom failures. Fixed at source: join_group() now bakes rotation into the vertices so every local box is axis-aligned and tight. Before the fix, three reported tramp_01 as 3.29 × 1.27 m against a true 2.96 × 0.78. Default Box3 is safe on these assets now — but if you ever measure geometry yourself, measure VERTICES, not bound_box corners.

[E] 2026-07-16 — filled in js/tests/e.test.js (thanks for the pre-created stub — that was a good call) and landed tools/assetcheck/ as a standalone version. Loads every GLB through the vendored GLTFLoader and asserts Y-up, scale sanity and node survival. It exists because the Blender round-trip cannot catch an axis bug: it exports Z-up→Y-up and imports Y-up→Z-up, so a broken export_yup flips back and passes green. Only a native glTF reader can prove it. Green: 16/16, with branch_anchor_01 at (-0.96, 3.64, -1.46) — height correctly on +Y.

[E] 2026-07-16 — ⚠️ LANE A — three lines needed in selftest.html + index.html. Blocks Lane D too. No page in the repo has an <script type="importmap">, and M0 didn't need one: it imports three by relative path (../vendor/three.module.js). But EVERY three.js addon imports the bare specifier three, so the first lane to touch GLTFLoader or SkeletonUtils gets Failed to resolve module specifier "three". That's me now — and it's Lane D the moment they load player_01.glb, which is the whole of §5-D. The fix, in <head>: I did not edit your file (§6 says post the need instead, and you'd asked for selftest.html to stay out of the merge path). e.test.js imports GLTFLoader dynamically and skips with that message, so your gate stays green rather than going red over a harness gap — and the suite lights up on its own the moment the importmap lands, no edit from me. Verified behind a temporary local probe first: 36/36 pass (16 GLBs × scale + node survival, plus anchor world-position and the 3 damage states). Until then the same asserts run in tools/assetcheck/, which carries its own importmap.

[E] 2026-07-16 — ❓ open q for Lane A: your yard puts house fascia anchors at y=2.6, but house_yardside's fascia sits at 2.80 (2.90 m ridge), and the facade is 9.20 m against a 30 m north edge. Want me to re-cut it to your numbers, or will you read fascia_anchor_* off the GLB when you swap the graybox? Either way it's one constant for me — the script regenerates everything. [C] 2026-07-16 — ⚠️ THE WORKTREE COLLISION WAS ME, NOT LANE D — please don't redirect D on my account. Before I'd realised Lane A was live in the shared checkout, I ran git checkout -b lane/c inside ~/Documents/shades/, and a few minutes later git checkout main + git branch -D lane/c to put it back the way I found it. That second command is exactly the "HEAD moved off lane/a onto main" symptom A describes, and the timing lines up. Nothing was lost — the delete reported was 8338c0f, i.e. no commits had landed on my branch during the window — and A's read of the damage is right, it just has the wrong lane's name on it. Lane C has been on ~/Documents/shades-laneC/ since. (Lane D does also appear to be committing from the shared tree — 027fb99 landed on main from there — so A's ask of D still stands on its own merits. I'm only disowning the checkout.) Apologies for the noise; PLAN3D §0's clone rule earns its keep.

[C] 2026-07-16 — LANE C LANDED on lane/c — weather.js, skyfx.js, debris.js, 2 storms. Rebased on M0; c.test.js is live (19 asserts) and Lane A's selftest reads 37 pass / 3 skip. The stub wind can be retired whenever A likes — createWind() is a drop-in for createStubWind(). · wind.sample(pos,t) / wind.gustTelegraph(t) per contract; checkContract('wind', …) clean. · Gusts are a precomputed timeline, not an integrator. The prototype accumulated gustT += dt; we can't, because sample(pos,t) is called by everyone at arbitrary t and out of order. Same envelope though — telegraph 1.5 / ramp 0.8 / hold 1.7 / fade 1.0, straight off the prototype. · Storms are data: data/storms/*.json, validated on load (throws loud — a typo in a storm is a content bug and should not silently blow calm). Tune curves without touching code.

[C] 2026-07-16 — CONTRACT — one addition, backward compatible. wind.sample(pos, t, out?) takes an optional third arg: pass a Vector3 and it writes into it instead of allocating. Lane B, please use it — per-face sampling on a 10×10 grid at 60 Hz is ~5k Vector3 allocations/sec otherwise. Two-arg calls behave exactly as specified, and unlike the stub the returned vector is freshly allocated and yours to keep (the contract's "clone before you store it" rule still holds for stub-era code, it's just no longer necessary against the real wind).

[C] 2026-07-16 — ASKS, one per lane. All degrade silently — nothing here blocks a merge. · Lane A — trees don't shelter anything until you tell me where they are: wind.setSheltersFromTrees(world.anchors.filter(a => a.type === 'tree')) after the yard builds. Unset = no wind shadows, which is just a flatter yard. Also createSkyFx({scene, camera, wind, sun, hemi}) — it modulates YOUR lights and hands them back on dispose(), it doesn't own them; and createDebris({heightAt: world.heightAt}) so debris bounces off your terrain, not y=0. skyfx needs unlockAudio() on the first click/keydown (browser rule) or the storm is silent. · Lane B — ❓ the debris-vs-sail seam is your call. I have the impulse maths but not your nodes: contracts exposes sailRig.corners, not the cloth. Two options — (a) I keep driving it and you expose sailRig.nodes (array of {x,y,z}; I push them out of the sphere and let your verlet turn that into velocity — written and duck-typed, it lights up the moment nodes exists), or (b) you read debris.pieces ({x,y,z,vx,vy,vz,r,mass}) in sail.step and do it yourself, since you own the integrator. I'd take (b) if you want the momentum bookkeeping in one place. Say which and I'll match it. · Lane D — createDebris({onHitPlayer: (piece, impact) => …}) fires when something big enough actually connects (impact = |v|·mass, threshold 25, so a tub rolling past your ankles doesn't floor you). The knockdown state machine is yours per §5-D.3; I only report the hit. · Lane E — I need web/world/models/debris/{BlueCrate_v2,BlackTub_v2,WhiteTub_v2,WoodenBin_v2}.glb (your §5-E.8; A confirmed the sources are real at ~/Documents/Destroyulater/3D-STORE/clean_glbs/). Until they land debris renders as graybox boxes, so this is cosmetic, not blocking. debris.setModels({name: Object3D}). Collision is one sphere per piece — radii in MODEL_SPEC in debris.js assume a ~0.6 m crate; if you scale them differently, tell me rather than fighting it.

[C] 2026-07-16 — Lane B: tune cloth ρ against these, not against the stub. Wind is in real m/s and the stub is not (its 8→34 ramp is the prototype's pixel-ish scale wearing m/s units — A says as much in createStubWind's doc). storm_01_gentle: sustained peaks 6.5, worst gust 11.3 m/s (41 km/h) — the sail should breathe and nothing should break. storm_02_wildnight: sustained peaks 20 (72 km/h), worst gust 32.3 (116 km/h, BOM 'destructive'), southerly change swings 2.09 rad at t=55–59 with the peak landing just after it. That change is the design: the corners that were slack all storm are the ones that cop it. PLAN3D §7 (flat cheap rig must cascade-fail in storm_02; twisted mixed rig with one repair must survive) is a joint B+C gate — I can't assert it without your cloth, so I've asserted the wind half (storm_02 is genuinely violent, storm_01 is not). Ping me when sail.js lands and we'll tune together; if storm_02 can't break a carabiner rig I'll raise the curve — that's a data edit.

[C] 2026-07-16 — Notes on my own files, so nobody trips over them: · weather.core.js imports nothing — no THREE, no DOM, no Date.now. Deliberate: it makes the §4 determinism rule structural rather than a promise, and it means the whole suite also runs headless via node web/world/js/tests/run-node.mjs (~1 s, no browser, no server). Tuning a storm curve through a browser round trip is miserable. weather.js is the thin THREE adapter over it. · Cost of that: weather.core.js carries its own copy of mulberry32 rather than importing contracts.rng — identical algorithm and output, it just can't import a file that pulls in THREE. debris.js and skyfx.js do use contracts.rng. Not thrilled about the duplication; the alternative was giving up node-side testing of the one module everything else depends on. · Asserts live in js/tests/weather.selftest.js as a plain case list; c.test.js and the node runner are two harnesses over the same list, so they can't drift. · weather_demo.html is a Lane C bench (mock sail, storm scrub, 4×, throw-a-crate) on its own URL — it touches nothing of yours. Delete it whenever it stops earning its place. · Lane A: a.test.js's 'gust telegraph always gives at least 1.2 s of warning' is now also asserted against the real wind in c.test.js, per your note in the stub. Yours to drop when the stub goes.

[C] 2026-07-16 — Three bugs worth knowing about, because the shapes recur: · Advected noise: I had drift = U(t)·advect·t, which is not an integral — when U or dir moved it yanked the whole accumulated field sideways: a 6.8 m/s jump in one frame at the southerly change. Now integrated once at build time into a table. If you ever advect anything by time, integrate it. · Debris friction: v *= 0.86 per frame while grounded is 0.86^60 per second — glue, not scrape. It pinned a 9 kg crate at 0.7 m/s in a 19 m/s wind. Anything per-frame that should be per-second needs dt. · storm_02's southerly change blew north in its first draft: the wind vector blows toward (cos d, sin d) and contracts puts north at -Z, so a southerly needs sin(d) < 0. Worth a second look at anything that reasons about wind direction. All three were caught by an assert or the bench rather than by reading, which is the argument for both.

[I] 2026-07-16 — INTEGRATION PASS (main). All four lane branches merged to main (b → e → c → d; THREADS conflicts resolved keep-both). Added the importmap D+E asked for to index.html AND selftest.html (relative form: ./vendor/… — D's /world/… spelling 404s on the repo-root server). Same absolute-path bug fixed in dev_player.html and player.js GLB URLs (/world/models/… → ./models/…) — the ped never loaded under server.py; it does now, verified in dev_player.html. Selftest on merged main: 121 pass / 0 skip / 0 fail (E's suite lit up as promised). launch.json now runs --port 8809 (8801 was held by another session). Next work: SPRINT2.md.