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feedBack/specs/012-midi-input-domain/spec.md
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af2949677a rename: slopsmith → feedBack, byron → got-feedBack (#537)
* Update GitHub repo references from feedback* to feedBack*

* rename: slopsmith -> feedBack, byron -> got-feedBack

Renames across the entire codebase:
- slopsmith/Slopsmith/SLOPSMITH/SlopSmith -> feedBack/FeedBack/FEEDBACK/FeedBack
- byron/Byron/Byrongamatos -> got-feedBack/got-feedBack/got-feedBack
- /home/byron/ -> /opt/got-feedBack/
- byron@ougsoft.com -> hi@got-feedBack.org
- github.com/byrongamatos/ -> github.com/got-feedback/
- com.byron. -> com.got-feedback.
- SLOPSMITH_ env vars -> FEEDBACK_ with backward-compat fallback
- Protocol/storage strings migrated with read-old/write-new pattern
- window.slopsmith JS API -> window.feedBack (canonical) + backward-compat alias

Refs: #rename-slopsmith

* rename: complete regen against current main + fix backward-compat alias

Regenerated the slopsmith->feedBack / byron->got-feedBack rename on top of
current main (3 commits had landed since the branch: #572/#554/#574),
resolving the four content conflicts in favour of main's newer content
(autoplay/auto-exit, accuracy-badge, Virtuoso re-home, feedpak badge).

Completion fixes on top of the mechanical rename:
- Re-apply rename to post-branch content the original rename never saw:
  window.slopsmith(.Tour) consumers in lessons.js / notifications.js /
  onboarding-tour.js, and the matching JS + python tests (autoplay_exit,
  progression_*, test_feedpak_extension FEEDBACK_* env vars). The test env
  vars now match server.py (which reads FEEDBACK_SYNC_STARTUP /
  FEEDBACK_SKIP_STARTUP_TASKS), so the sync-startup test exercises the real
  path again.
- Restore the window.slopsmith backward-compat alias dropped during conflict
  resolution, and move the bus aliases to AFTER the _feedBackExisting merge
  block so they reference the fully-assembled object (also fixes the
  loop_api.test.js API-surface regex, which the original PR latently broke).
- Drop the stray empty data/web_library.db (runtime DB lives in CONFIG_DIR)
  and gitignore it.
- Fix stale tone-source test: feed[dB]ack -> fee[dB]ack to match shipped
  source labels.

Verified locally (org CI billing-blocked): JS 819/819 pass; pytest 1669
passed / 1683 collected with 0 import errors; zero residual slopsmith/byron
except the two intentional window.slopsmith aliases.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* rename: implement advertised backward-compat + prune dead community plugins

Address gaps where PR #537's "Backward compatibility" section was advertised
but not implemented, and clean up the community plugin list.

Env vars (FEEDBACK_* canonical, legacy SLOPSMITH_* honoured):
- New lib/env_compat.py (getenv_compat / env_flag_compat) + tests. server.py
  (_env_flag + all FEEDBACK_* reads), diagnostics_hardware, gp2midi and
  tailwind_rebuild now resolve the legacy alias, so existing SLOPSMITH_UI /
  SLOPSMITH_PLUGINS_DIR / etc. deployments keep working.
- Fix the rename collapsing plugins/__init__.py and minigames/routes.py from
  `FEEDBACK_PLUGINS_DIR or SLOPSMITH_PLUGINS_DIR` into a redundant
  `FEEDBACK_ or FEEDBACK_` (the fallback was silently lost).

Storage (app.js update-channel):
- Read feedBack-update-channel, fall back to legacy slopsmith-update-channel,
  and clear the legacy key on write — so a user's update-channel preference
  survives the rename instead of resetting to "stable".

Community plugin list (README): the rename rewrote third-party repo URLs we
don't own. Probed every one; their owners never renamed, so:
- Restore the 13 live community plugins to their real slopsmith-* names.
- Prune 6 that are 404 to the public (topkoa splitscreen/stems, OmikronApex
  tuner, Jafz2001 nam-rig-builder, DeathlySin song-preview, Erikcb91 shuffle).
- Fix a pre-existing Guitar Theory clone-command typo (nam-tone -> guitar-theory).

Verified: env_compat 7/7, JS 819/819, pytest 1690 collected / 0 import errors,
rename-sensitive + startup suites green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: byrongamatos <xasiklas@gmail.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-23 11:03:01 +02:00

5.2 KiB

Spec 012 — MIDI-Input Control-Plane Capability Domain

Status: active (control-plane slice) · Issues: #873 (impl), #880 (this spec) · Base: release/v0.3.0

Summary

midi-input is a core-owned provider-coordinator capability domain for MIDI device discovery, selection, and open/close session lifecycle — the MIDI analog of audio-input (spec 006). It gives every MIDI consumer in FeedBack (the input_setup onboarding wizard, the piano/keys and drums plugins, and — as a follow-up — note-detection's Web-MIDI provider) one device-access boundary: one permission prompt, one source list, one redaction boundary.

Motivation

Today each MIDI consumer calls navigator.requestMIDIAccess() privately (piano, drums, plugin-midi, note-detection's midi provider kind), so there is no shared source list, no single permission prompt, and no common redaction of device labels. The onboarding input-setup step (#874/#876/#877) needs a single governed surface to pick and verify a MIDI device per instrument.

Why not reuse audio-input

audio-input's source/source.open contract is audio-frame-centric: channelSummary/channelCount/channelShape, requiredChannelShape, and redaction keyed to audio handles/buffers/samples. MIDI carries discrete messages and has no channel shape. Folding MIDI in would overload the audio contract and its redaction boundary. A sibling domain keeps both contracts clean and lets each evolve independently — the same reasoning that made audio-input and audio-monitoring siblings rather than one domain.

Why core-owned (not plugin-owned)

An input control plane outlives any one feature; audio-input is core.audio.session-owned, not owned by a feature plugin. If input_setup owned midi-input, the domain's lifetime would be coupled to the wizard, and migrating ownership later (every consumer, persistence key, diagnostics schema references the owner) is costly. The domain is core.midi-input.

Contract

  • Owner: core.midi-input, kind provider-coordinator, safety sensitive.
  • Public commands: inspect, list-sources, discover, select-source, open-source, close-source.
  • Provider operations: source.enumerate, source.describe, source.open, source.close.
  • Events: provider-registered, provider-unregistered, availability-changed, sources-changed, source-selected, source-opened, source-closed.

Sources & identity

Providers register source summaries with providerId, a stable sourceId, a derived redaction-safe logicalSourceKey (providerId::sourceId), kind: "midi", a label, and availability. Persistence and diagnostics use the logicalSourceKey, never the human device label.

Permission model (Web-MIDI nuance)

requestMIDIAccess() gates the whole input list, so discover is the permission boundary (not open-source, as it is for audio). inspect / list-sources / select-source are prompt-free and never request access. discover records denied / unavailable outcomes; open-source attaches a shared listener session to an already-discovered source and never re-prompts.

Sessions

One shared open session per source across requesters (refcounted); the provider receives source.close only after the last requester releases. Live MIDI message delivery (for the "play a note / hit a pad" calibration check) is exposed to in-page consumers via the public window.feedBack.midiInput session handle only — never as raw capability events or in diagnostics.

Persistence & redaction

Selected source persists under feedBack.midiInput.selectedLogicalSourceKey. Diagnostics (feedBack.midi_input.diagnostics.v1) carry provider ids, source ids/keys/kinds/availability, the selected key, and open-session keys; device labels are redacted and no raw MIDI messages are ever included.

Split from midi-control

The reserved midi-control domain is narrowed to control mappings only (CC/pitchbend/note → action routing) and will consume midi-input for device access. This spec carves out the device control plane so midi-control can stay mappings-only (#882).

Consumers (separate issues)

  • input_setup onboarding wizard — keys/drums device pick + verify (#876/#877).
  • piano / drums plugins — consume midi-input instead of private requestMIDIAccess() (via the sub-flow issues; legacy retired through bridges).
  • note-detection's Web-MIDI provider migrates onto midi-input (#881).

Acceptance

  • Owner registers; appears in the Capability Inspector with the commands above.
  • discover is the only command that triggers requestMIDIAccess(); inspect/list-sources/select-source never prompt.
  • Selection persists across reload by logicalSourceKey.
  • Diagnostics contain no device labels or raw MIDI messages.
  • A consumer can discoverselect-sourceopen-source → receive live note-on for the calibration check → close-source (session refcount releases).

Out of scope (follow-ups)

  • midi-control mapping/routing domain (#882).
  • note-detection provider migration onto midi-input (#881).
  • Retiring per-plugin requestMIDIAccess() in piano/drums via compatibility bridges (tracked with the sub-flow issues).