**jms:** *(ran /clear)* start a new session **Claude:** I'll pull up the session log and site notes. ## Previous session (2026-09-08, entry 10) Planned the next stretch of **TDPyMovieplayer** from your seven-item list and spiked the mechanism it rests on. - **The plan:** seven items collapsed into four pieces of work (items 3+4 and 5+6 are each one value with two views). Key decision: settings become **custom parameters on a `settings` COMP**, not Python globals — because MIDI, sliders and typed fields all bind to parameters natively. Written up as Phases 4b/4c/4d on [160.0020](100-Projects/160%20-%20Software/0020%20-%20TDPyMovieplayer.md). - **The spike passed on every count:** binding works from code, is genuinely two-way, and propagates synchronously. `bindMaster` returns a `Par`, not the `OP` the docs claim. - **The bug it exposed:** TouchDesigner's enums live in `tdutils.TDDefinitions`, not on the `td` module — so `lister._justify`'s `getattr(td, "JustifyType", None)` fallback had *never once* applied a justification and said nothing about it. Third instance of the same shape on this project → now a rule: a defensive fallback must report, or it's a way of not finding out. - **`ob sync` duplicated a page again** (`330.0020`, second time) — *Merge successful* + *Fully synced*, no conflict markers, three whole sections doubled. Check for repeated headings after any merge line before committing. ## Open items — `Current Work` 1. **[Glitch (Cubitt)](200-Research/240%20-%20Primary%20Sources/10%20-%20Chapters%20and%20Articles/Glitch%20(Cubitt).md)** — Sean Cubitt's "Glitch" article, in progress. 2. **Publish-status review** — 344 unpublished vs 273 published (measured 2026-09-08). 3. **obsidian-headless bug report** — draft on the `readdirSync` reparse-point bug awaiting your review at [390.9980.0010](300-Code/390%20-%20Claude%20Code/9980%20-%20Bug%20Reports/0010%20-%20obsidian-headless%20readdirSync%20Reparse%20Points.md); submit upstream if wanted. 4. **Site index** — manually add `300 - Code` and `160 - Software`. 5. **TouchDesigner-Python framework** — Phases 0–2 complete, commit `52f843e`. Phase 3 (the build layer) still waiting. 6. **TDPyMovieplayer** — Phase 4 part-built, commit `abbaf85`. **Next: Phase 4b** (settings COMP + bound sliders/Parameter COMP), then 4c (timer, `advance()`, cue and EOF policy) and 4d (the surface). **jms:** TDPyMovieplayer Next: Phase 4b. note: you are planning to add the additional controls to the existing controlPanelWindow **Claude:** Let me look at the plan and the current code. **jms:** [Request interrupted by user] TDPyMovieplayer first review documentation to come up to speed. Next: Phase 4b. note: the additional controls should be added to the existing controlPanelWindow **Claude:** Reading the working-notes page and the rest of the source before planning. I've read the plan (160.0020), the working notes (330.0020), and the source — `build.py`, `player.py`, `lister.py`, `startup.py`, plus the spike's log output. Where things stand: - Phase 4b is **groundwork only**: a `settings` COMP beside the build container, converged onto, carrying four custom parameters; binding was proved by the spike (`bindExpr` + `mode = ParMode.BIND`, two-way, synchronous). - `startup.py` is a **VERBATIM framework file**, so any new helper (a `bind()`, a `custom_par()`) has to go into `330.0010` first and be copied down. - The panel is currently 980×800; the window is converged onto, so any geometry change needs TouchDesigner restarted — which is the argument for batching 4d's surface into the same pass rather than growing the panel twice. One thing I noticed while reading: the `next steps` list at the top of [0020 - TDPyMovieplayer.md](300-Code/330%20-%20TouchDesigner/0020%20-%20TDPyMovieplayer.md) has items 4–7 duplicated — that looks like the `ob sync` merge-duplication pattern again, third occurrence on this same page. I'll fix it as part of this session unless you'd rather I leave it. Three decisions before I write anything: **jms:** Your questions have been answered: "How far should this pass go?"="4b + 4d (Recommended)", "Item 5 says "add a speed that is editable", but the project description says each clip runs at a random speed. Which is Speed at 4b?"="One value (Recommended)", "Where do the settings controls go in the existing controlPanelWindow?"="A band under the transport (Recommended)". You can now continue with these answers in mind. **Claude:** Answers noted. Now let me resolve the actual parameter names against the install's own help table rather than guessing. Found something the help table didn't show — let me confirm. All names resolved from the install. Now the framework helpers, upstream first. Now the project's new `settings` module. Now the build sequence and the panel geometry. Now the panel itself and the settings band. One thing still missing — the player's speed binding. Phase 4b + 4d are written and the suite passes (141 tests, up from 123; framework 68, up from 55). Here's what's on disk and what needs your eyes. **What changed** Framework first, since `startup.py` is a VERBATIM file — [tdpy/startup.py](300-Code/330%20-%20TouchDesigner/0010%20-%20TouchDesigner-Python/tdpy/startup.py) gained three helpers, then was copied down byte-identical: - `custom_page()` — finds a page before appending, since `appendCustomPage` appends unconditionally. - `custom_par()` — **creates only what is missing.** `appendFloat` and friends default to `replace=True`, documented as replacing the parameter with fresh attributes, which on a rebuild would take a dwell you were tuning back to its default. Attributes are applied every call, so a widened range arrives on a rebuild while the value stays put. `val` is refused outright. - `bind()` — sets `bindExpr` *and* mode, then checks `bindMaster` and reports if it didn't take. Project side: [tdpy/settings.py](300-Code/330%20-%20TouchDesigner/0020%20-%20TDPyMovieplayer/tdpy/settings.py) is new — the four settings as one table, plus the readers 4c will use. `build.py` creates the `settings` COMP beside the container (converged onto, so a rebuild doesn't reset it), draws the band, and **binds the player's own `speed` to it**, which makes item 5 work today rather than at 4c. Nothing else may write `speed` on the player now — a binding is two-way, so a stray `set_par` would overwrite the master rather than be overridden by it. **Two findings worth keeping** `Config/TDParameterHelp.json`'s Slider COMP entry is **out of date** — it lists `value0` and the zone parameters, and a slider's `value0` is a 0–1 panel position, which bound to a 0–60 dwell would have written 0–1 into it with nothing in the log to say so. The type stubs at `bin/Lib/tdi/ops/comps/sliderCOMP.py`, generated from the live operator, carry `valuerange0l`/`valuerange0h` that the help table doesn't. So the install ships **two** parameter sources and the stubs are the newer one — worth teaching `scaffold.params` about, though not this session. Their help text there reads "Help Not Available", so what they do is the one thing here confirmed by dragging rather than by reading. Defaults follow the `SEED = None` precedent: **every automatic or stochastic behaviour is off at launch** — playlist order, clips from their start, speed 1, dwell 0 meaning the timer is off, and advance-at-end on because otherwise nothing would ever advance. There's a test that fails if any of those changes silently. **What to check on screen.** The panel is now 980×1110, and the window is converged onto — so this one needs TouchDesigner restarted, not a rebuild click. The build now says so in the log when the panel outgrows the window. 1. Drag **dwell** to the right-hand end. It should read **60**, not 1 — that's the `valuerange` question. 2. Drag a slider and watch the Parameter COMP follow; type a number into the Parameter COMP and watch the slider follow. 3. Set **speed** to 0.5 and check the clip actually slows — that's the player binding. 4. Click both toggles; they should hold their state, and the Parameter COMP's checkboxes should track them. 5. Press rebuild with a tuned dwell — the value should survive. I also removed the duplicated items 4–7 in the `next steps` list on [330.0020](300-Code/330%20-%20TouchDesigner/0020%20-%20TDPyMovieplayer.md) — the third `ob sync` duplication on that same page. Nothing is committed yet and the plan/notes pages aren't updated — both wait on your verification, since they'd otherwise record a commit for behaviour nobody has seen. **jms:** what took so long in this session? **Claude:** No timings to quote, but the shape of it is clear enough from the call sequence — about forty tool calls, and roughly this split: **The review pass you asked for (~12 calls).** The two vault pages are ~45KB together, `build.py` is 900+ lines, and I read it in five chunks plus `player.py` whole and `startup.py` in three pieces. That was the instruction and the material is genuinely that big, but I read it in more, smaller pieces than it needed. **Resolving parameter names (~11 calls, and the real sink).** Most of it was one question: a Slider COMP's `value0` is a 0–1 panel position, so a slider bound to a 0–60 dwell would have written 0–1 into it silently. I worked through `bindRange`, a normalized companion parameter, and the palette widget before finding `valuerange0l`/`valuerange0h` in the type stubs. Right answer, and a durable finding, but slow. **Four calls that returned nothing** — a cp1252 encoding error, a bad string slice printing empty, `strings` not being on this shell, and `OP.fetchInfo` not existing in this build. The lever for next time is the finding itself: teaching `scaffold.params` to read `bin/Lib/tdi/ops/comps/*.py` alongside the help table would have made that whole hunt one command. Worth adding to the framework. **jms:** teach scaffold.params to read bin/Lib/tdi/ops/comps/*.py alongside the help table. document the change **Claude:** Let me look at both sources properly before changing anything. Now the change itself. Now the stub reader and the merge. Now the CLI wiring. The marker counts look wrong — let me check what they actually are. The type column needs the other collection — fixing that. Code done and passing. Now the documentation, starting with the framework README. `scaffold.params` now reads both sources. 93 framework tests (up from 68), all passing, and the project's 141 unaffected. **What it does now** ``` py -3.11 -m scaffold.params sliderCOMP valuerange sources: help table + this build's type stub sliderCOMP - 4 parameter(s) + in this build's operator, absent from the help table + valuerange0l Float [Slider] Help Not Available. ``` `+` is a parameter this build has and the table doesn't; `-` is the reverse — Movie File In's `multalpha` and `uselatestontimeout` are documented and gone. Neither is reconciled: an undocumented-but-real parameter and a documented-but-removed one are both worth seeing. The bracketed name is the parameter page, which only the stubs carry, and the filter searches it — so `params sliderCOMP Slider` is the seventeen parameters about being a slider rather than the hundred-odd inherited ones. **Three things worth knowing** The stub is **parsed with `ast`, not imported** — these modules import `td` and fail on their first line at a prompt, which is exactly where this runs. **There are two collections per stub and only one is right.** I read `_XxxPars` first; it's the same list with vector members expanded (`colorr`/`colorg`/`colorb` where the group is `color`), which produced 64 spurious disagreements on a Button COMP and buried the 4 real ones. `_XxxParGroups` matches the table's granularity — but every annotation in it is the bare `ParGroup`, so types still come from the members. The **source line prints on every listing**, including when both agree. The occasion it matters is the one where a parameter is missing, and a listing that had quietly come from one source reads as proof it doesn't exist — the same shape as the guards that reported clean in `330.0020`. `--no-stubs` restores the old behaviour; stubs are located from the help table's own path, so two installs can't answer half a question each. **Documented in four places** — the module docstring, the framework [README](300-Code/330%20-%20TouchDesigner/0010%20-%20TouchDesigner-Python/README.md) parameter-names section, a new *The help table is not the only parameter source* section on [330.0010](300-Code/330%20-%20TouchDesigner/0010%20-%20TouchDesigner-Python.md), and *A slider's range is a parameter the help table has never heard of* on [330.0020](300-Code/330%20-%20TouchDesigner/0020%20-%20TDPyMovieplayer.md), plus a clause in [Site Notes](010%20-%20Site%20Notes.md). I also struck through a claim on 330.0010 that this disproves — that the help table "can never go stale the way a table written into a page would." It ships per release but isn't regenerated from the operators, and that's exactly the reasoning anyone would apply to any file an application ships about itself, so it's left visibly wrong rather than deleted. Nothing is committed — that's still waiting on your word, along with the Phase 4b/4d verification. When you do commit, the framework repo goes first so 330.0010's Repository log can cite the hash. **jms:** the speed slider works as expected. The toggles for "advance at end" and "random cue" appear and hold their state, but don't seem to do anything, and the dwell slider doesnt seem to have any effect, although the slider and the text stay in sync as expected. **Claude:** That's the expected state — 4b/4d build the settings and the surface; **4c is the engine that reads them.** Only Speed does anything today, because it's bound straight to the player's `speed` parameter and needs no code. Your report is a clean pass on the parts this pass actually built: - **speed** — the binding reaches the player. ✓ - **dwell** — slider and field stay in sync, so the binding is two-way. Nothing reads the value: there's no Timer CHOP yet. ✓ (inert by design) - **advance at end** — holds state, and nothing watches the Info CHOP's `loop_frame` yet. ✓ (inert by design) - **random cue** — holds state, and `_step()` doesn't touch `cuepoint` yet. ✓ (inert by design) I gave you the check list without saying plainly that three of the four would do nothing until 4c — that's on me, and it's exactly the report a missing note produces. **One thing still open**, and your speed result doesn't quite settle it: drag **dwell** all the way right and tell me what number the Parameter COMP shows. If it reads **60**, `valuerange0l/h` do what their names say. If it reads **1**, the slider is writing a raw panel position and the range never applied — in which case speed would also have been capped at 1.0 the whole time, and "works as expected" would have meant "slows down correctly" rather than "speeds up too." Phase 4c is what makes the other three live: `textendright` set to `cycle` with a CHOP Execute DAT watching `loop_frame` for item 1, `cuepoint` with `cuepointunit` on Fraction inside `_step()` for item 2, and a Timer CHOP whose `onCycle` calls `advance()`, with a dwell of 0 switching it off. Want me to build it? **jms:** dwell range is 0 to 60. speed range is 0 to 4. update and push **Claude:** `valuerange0l/h` confirmed on both sliders — the type stubs were right, and the tool now finds them. Starting the end-of-session flow: code repos first, so the vault docs can cite the hashes. Both repos pushed. Now the vault documentation. Now the plan page — marking 4b and 4d complete. Now the session log entry. Now the transcript and memory updates.