# MYND Renormalization Probe — Codex Local Handoff v0.2

This folder is the durable local continuation point for the MYND
Renormalization Probe work produced in ChatGPT Work.

## Open it in the ChatGPT desktop app

1. Move this entire unzipped folder somewhere permanent on your Mac, for
   example:

   `~/Developer/MYND/mynd-renormalization-probe`

2. Open the ChatGPT desktop app.
3. Open **Projects** and choose **Add local project** or **Open folder**.
4. Select the unzipped folder itself—the one containing `AGENTS.md`.
5. Select **Codex** for the task.
6. Paste the kickoff prompt below.

## Codex kickoff prompt

```text
Read AGENTS.md first, then README_HANDOFF.md, docs/MYND_v0.2_Wideband_Coherent_Resolve.md, docs/MYND_Renormalization_Probe_v0.1.md, docs/MYND_BLUEPRINT_v0.1.md, and docs/MYND_MECHANISM_FIRST_TECHNICAL_BRIEF.md. Inspect both renderers and the v0.2 manifest. Treat v0.1 and v0.2 as preserved reference baselines. First verify the existing render commands and artifact metadata without changing outputs. Then propose the smallest architecture for v0.3 that turns the static reference-frame/coherence controls into a real-time local instrument, while preserving sample-accurate phase, the internal/external dual-bus distinction, and deterministic traceability. Do not overwrite the reference renders; create a new v0.3 branch or files.
```

## Folder map

- `AGENTS.md` — durable instructions Codex should automatically read.
- `src/` — deterministic Python renderers.
- `docs/` — MYND blueprint, mechanism-first research brief, and probe specs.
- `audio/` — compact listening references: the v0.1 preview and v0.2 study.
- `interactive/` — standalone Web Audio control instrument.
- `data/` — controller trace and v0.2 render/QA manifest.

## Reproduce

Requirements:

- Python 3.11+
- NumPy
- SciPy
- FFmpeg available on `PATH`

Install Python dependencies:

```bash
python3 -m pip install -r requirements.txt
```

Render the 12-minute v0.1 master:

```bash
python3 src/render_probe.py --output-dir builds/v0.1 --progress
```

Render the 90-second v0.2 study:

```bash
python3 src/render_wideband_resolve_sample.py --output-dir builds/v0.2 --progress
```

## Current state

v0.1 established the dual-coordinate psychoacoustic construction:

- circular Shepard/Risset scale motion with hidden octave relabeling;
- a separate scale-zoom coordinate for rhythm→roughness→pitch transition;
- CDC-shaped phase cells and relation energy;
- internal binaural versus external AM/spatial fields.

v0.2 added:

- controlled 27.5 Hz–18.7 kHz spectral occupancy;
- band-limited sine/triangle/saw/pulse roles;
- a zero-valued pre-hit boundary interval;
- one phase-coincident A0 integer-ratio terminal attractor;
- root-period spatial reflections that preserve terminal phase closure;
- frequency-dependent shedding of complexity into a persistent invariant.

The next meaningful product step is not a longer static composition. It is a
real-time deterministic renderer with explicit controls for scale velocity,
direction, coherence, internal/external frame bias, waveform-family weights,
and commit/resolve behavior, followed by physiology and head-pose inputs.