add sessions/0012/SESSION-0012.0-TRANSCRIPT-2026-06-08T00-05--2026-06-08T07-00.md + replace placeholder/variant SESSION-0012.0-TRANSCRIPT-2026-06-08T00-05--INPROGRESS.md
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Ben Stull
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# Session 0012.0 — Transcript
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> App: human-experience-filter-art
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> Start: 2026-06-08T00-05 (PST)
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> End: 2026-06-08T07-00 (PST)
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> Type: coding
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> Status: **FINALIZED.**
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> Outcome: two PRs merged to `main` — **#10 fast-spin blended pass** + **#11 v2v
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> vertical slice (real forest Right variants)**. Suite 228 passed / 2 skipped.
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## Launch prompt
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`/goal next` → resumed the stored Next /goal from memory: **tune the ring
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experience by eye (transition feel/length, scale ordering, wrap moment,
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fast-spin behavior) and decide whether it's "liked"; once liked, the next big
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build is the offline v2v variant pipeline.**
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## Plan
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Goal frontier = tune/judge the scale ring (sub-project 3, scales design §3).
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**Findings (early in session, after driving the sim + ring API):**
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- **Ring mechanics are sound & correct** — single step, wrap (correct reversed
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seam edge), multi-detent chaining, full-loop all verified via the canonical
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`/api/ring` + `/api/ring/advance`. UI renders the endless-encoder control +
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live RenderPlan readout.
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- **Aesthetic "feel/liked" is gated on real footage.** The current scale bases
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are near-black solid-color placeholders with text labels; transitions are
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ffmpeg `zoomin`-xfades. Transition feel / scale ordering / wrap-moment cannot
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be meaningfully judged by eye on these — that is exactly what the deferred v2v
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build (real strict-PD footage + real first-last-frame i2v transitions)
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produces. Placeholder by-eye tuning has a hard ceiling here.
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- **Fast-spin is the one genuine, footage-independent gap.** A multi-detent spin
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returns N steps and the browser plays ALL N full transitions sequentially
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(+5 ≈ 5 transitions ≈ 12–15 s of placeholder morphs). Design §3 explicitly
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anticipates this: "transitions chain, **or past a speed threshold a faster
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blended pass is used**." Not implemented.
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**This session's work:**
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1. Implement the design §3 fast-spin policy (Python-canonical step-reduction +
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thin frontend), TDD. The one tuning dimension that is real, footage-
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independent, and named in the goal.
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2. Verify (suite + drive the ring + screenshot), update USER_GUIDE + design
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note + memory.
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3. Surface the genuine **"liked?" → greenlight v2v build** decision to the
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operator with this honest assessment + recommendation (the aesthetic sign-off
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is the artist's call; v2v also needs real footage sourcing, so it is the
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natural next session).
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## Deferred decisions
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_Autonomous-mode low-confidence calls the driver made and would have
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liked operator input on. Appended as the session runs; surfaced at
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finalize. Empty if none._
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- **Fast-spin policy shape (PR #10).** Made fast-spin opt-in (`fast_spin_threshold`,
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default off) rather than default-on, so the pure `advance_ring` keeps its
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complete-chain contract + all existing tests, and the input layer (sim/firmware)
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— which actually knows wall-clock spin speed — enables it. Used `abs(delta)` as
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the spin-speed proxy (a spin batches detents into one advance call). Threshold
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default = 3 and the sim's blended playback rate = 2.5× are by-eye guesses, easily
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tuned. Confidence: high on the architecture, medium on the exact threshold/rate.
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- **Right strength curve (v2v slice).** Picked the keyframe-strength ramp per Right
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level by eye against the first real bake. First attempt was a linear 0.28–0.58 —
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but sd-turbo's painterly effect is sharply non-linear (barely registers <0.5,
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ramps hard through ~0.5–0.65), so levels 1–3 looked ~identical to raw. Re-baked
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with a clustered curve (0.46/0.52/0.58/0.64) for real perceptual progression.
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This is fundamentally an aesthetic + ML-param tuning loop (prompt/steps/strength)
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that wants the operator's eye; the curve is one-line tunable in
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`simulator/bake_right_variants.py` + re-bake. Confidence: medium — a sound,
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usable first real ramp, but the operator will likely want to fine-tune it (and
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possibly the prompt) before the look is locked.
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## Session arc
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1. **Opened** via `/goal next` → routed to a coding session, claimed ID 0012,
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synced the clean `main` baseline (transcripts live in this same repo under
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`sessions/`).
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2. **Oriented** on `player/ring.py`, the simulator, the manifest, and scales
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design §3/§4. Booted the sim and drove the ring via the canonical API +
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a headless screenshot.
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3. **Diagnosed** the goal honestly: ring *mechanics* are sound; the *aesthetic*
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judgment the goal asks for is gated on real footage (placeholders can't show
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it). The one footage-independent gap was **fast-spin**.
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4. **Built fast-spin** (TDD) — `advance_ring` opt-in `fast_spin_threshold`,
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serializer + API + thin frontend. Verified live (slow chains, fast collapses,
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correct wrap/arrival). PR #10, merged.
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5. **Surfaced the "liked?" gate** to the operator with the honest assessment
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(`AskUserQuestion`). Operator chose **vertical-slice the v2v build** — get
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real content for one scale to break the chicken-and-egg.
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6. **Built the v2v vertical slice** — wrote a plan, productionized the POC
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flow-restyle into `simulator/bake_right_variants.py` (curve TDD'd), baked real
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forest Right variants (~11 min MPS). First ramp was back-loaded (linear
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0.28–0.58 → levels 1–3 looked raw); re-baked with a clustered 0.46–0.64 curve;
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verified the perceptual ramp frame-by-frame. PR #11, merged.
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7. **Finalized** — memory updated, deferred decisions recorded, transcript
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published.
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## Outcome & next session
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The goal's "**decide if liked**" is now the operator's to make *with real footage
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in hand*: `make sim` → forest scale → sweep Right 0→4 to judge the dreamlike axis
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on real Yosemite footage. Mechanics (incl. fast-spin) are complete.
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**Deferred (next):** fine-tune the forest curve/prompt if the look isn't liked;
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source real strict-PD bases for cosmos/abyss (sub-project 2 ingest) so their Right
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variants can bake; build the real **i2v ring transitions** (needs a generative
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video model + two real adjacent bases). Pi renderer + serial/firmware stay
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deferred per the simulator-first directive.
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```
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/goal Judge the now-real forest Right (dreamlike) axis by eye (make sim → forest → sweep Right 0→4) and decide if the look + strength ramp is liked; fine-tune the curve/prompt in simulator/bake_right_variants.py + re-bake if not. Then continue the v2v build: source real strict-PD bases for cosmos/abyss (sub-project 2) and build the real i2v ring transitions. Per docs/ROADMAP.md + scales design §1/§3/§4.
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```
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@@ -1,20 +0,0 @@
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# Session 0012.0 — Transcript
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> App: human-experience-filter-art
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> Start: 2026-06-08T00-05 (PST)
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> Type: coding
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> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
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>
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> This file reserves session ID 0012 for human-experience-filter-art. The driver replaces this
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> body with the full transcript and renames the file to its final
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> SESSION-0012.0-TRANSCRIPT-2026-06-08T00-05--<end>.md form at session end.
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## Launch prompt
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_(launch prompt not captured at claim time)_
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## Deferred decisions
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_Autonomous-mode low-confidence calls the driver made and would have
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liked operator input on. Appended as the session runs; surfaced at
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finalize. Empty if none._
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