The studio shell paints a #0a0a0a body but never declares `color-scheme`,
so browsers render native UA chrome (scrollbars, form controls, focus
rings) in the light palette and the mismatch is obvious — especially
scrollbars, which appear as light tracks sitting on top of a near-black
panel.
Studio doesn't expose a theme toggle; the UI is dark-only. Declaring
`color-scheme: dark` on `:root` lines up the browser-native surfaces
with the rest of the chrome.
* fix(studio): restore flex layout inside the NLE timeline panel
Without `flex flex-col`, the toolbar and Timeline children render as
block elements and Timeline's `h-full` takes the panel's entire height.
The toolbar still occupies its own ~45px of flow, pushing the scroll
area below the viewport and clipping the scrollbar at the bottom of the
right-side panel.
* fix(studio): pin toolbar height with flex-shrink-0 and trim comment
Wrap the toolbar slot in a flex-shrink-0 div so Timeline back-pressure
can't squeeze the toolbar below its natural height. The visible bug
doesn't manifest at current sizes, but in a flex-col container both
children are flex items and the toolbar has no shrink guard of its own.
Trim the inline comment to a single line — the rationale belongs in
the commit message, not at the call site.
## Problem
Studio still broke down in three concrete authoring flows around timeline assets:
- you could import media into Assets, but not drag an already-imported asset from the Assets tab onto the timeline and persist it into source
- dragging a file from outside the app onto the timeline only uploaded it into Assets instead of placing it at the dropped time/track
- once a clip was on the timeline, there was no reliable keyboard delete flow for removing it safely from source
While implementing direct external drops, another real bug showed up:
- valid binary uploads like `raycast.mp4` from `Downloads` were being rejected as unsupported media in Studio dev because the Vite API bridge was corrupting multipart request bodies before they reached the upload route
## What this fixes
### Timeline asset placement from inside Studio
- asset cards in the Assets tab are draggable
- the timeline accepts asset drops even when it already has clips
- dropping an asset onto the timeline inserts a new clip into the active composition source at the dropped time / track
- asset paths are rewritten relative to the target composition file so drops into sub-compositions resolve correctly
- the new clip is persisted immediately and the preview refreshes
### Direct external file drops onto the timeline
- dropping a file from outside the app onto the timeline now uploads it and places it onto the dropped track/time in one shot
- it no longer stops halfway by only adding the file into Assets
- multiple dropped files are placed using the same drop start and successive tracks
### Delete key support
- selected timeline clips can now be deleted with `Delete` / `Backspace`
- deletion is persisted back to source, not just removed from local state
- the delete path now uses a server-side DOM mutation helper with LinkeDOM for structural safety instead of client-side string surgery
### Binary upload fix for media files
- the Studio Vite API bridge now forwards non-GET request bodies as raw bytes instead of decoding them as UTF-8 text
- that preserves multipart uploads for binary media like MP4s
- valid local videos from `Downloads` no longer get rejected as `Unsupported media skipped` just because the dev bridge corrupted the request body
- upload validation now probes buffered media through a temp file path that preserves the file extension before saving into the project
## Root cause
There were really two separate gaps:
### 1. Asset placement / deletion workflow gaps
The timeline and asset systems already existed, but they were disconnected:
- `AssetsTab` only supported copy/import flows
- `Timeline` only handled raw file import, not positioned placement for existing assets
- there was no utility layer for converting a dropped asset into persisted timeline HTML
- there was no structurally safe deletion path for arbitrary selected timeline clips
### 2. Binary upload corruption in Studio dev
The Studio Vite API bridge rebuilt non-GET request bodies like this:
- read each request chunk
- call `chunk.toString()`
- concatenate into a string
- construct the Fetch `Request` from that string body
That works for text, but it corrupts multipart binary uploads. By the time the upload route wrote the received file and ran `ffprobe`, otherwise valid MP4s had already been mangled in-flight.
## Behavior
- dropping on `index.html` inserts the asset into the root composition
- dropping while drilled into a composition inserts into that composition file instead
- drop X position maps to `data-start`
- drop Y position maps to the current visible track row, with a new bottom track created if the drop lands below existing rows
- images default to a short finite duration
- audio/video default to their metadata duration when available, with a fallback duration if metadata cannot be read quickly
- pressing `Delete` on a selected clip removes that clip from the underlying HTML source and clears selection in Studio
- valid uploaded MP4s now survive the Studio dev API bridge intact instead of being rejected during upload validation
## Verification
### Local checks
- `bunx oxlint packages/core/src/studio-api/helpers/sourceMutation.ts packages/core/src/studio-api/helpers/sourceMutation.test.ts packages/core/src/studio-api/helpers/mediaValidation.ts packages/core/src/studio-api/helpers/mediaValidation.test.ts packages/core/src/studio-api/routes/files.ts packages/studio/src/App.tsx packages/studio/src/components/nle/NLELayout.tsx packages/studio/src/components/sidebar/AssetsTab.tsx packages/studio/src/player/components/Timeline.tsx packages/studio/src/player/components/Timeline.test.ts packages/studio/src/utils/timelineAssetDrop.ts packages/studio/src/utils/timelineAssetDrop.test.ts packages/studio/vite.config.ts packages/studio/vite.request-body.ts packages/studio/vite.request-body.test.ts`
- `bunx oxfmt --check` on the touched files
- `bun run --filter @hyperframes/core typecheck`
- `bun run --filter @hyperframes/studio typecheck`
- `bun test packages/core/src/studio-api/helpers/sourceMutation.test.ts packages/core/src/studio-api/helpers/mediaValidation.test.ts packages/studio/src/player/components/Timeline.test.ts packages/studio/src/utils/timelineAssetDrop.test.ts packages/studio/vite.request-body.test.ts`
### Browser / live verification
Verified against a live local Studio fixture:
- dragging an existing asset from the Assets tab onto the timeline creates a persisted clip at the dropped position
- dropping a file from outside the app directly onto the timeline uploads it and creates a persisted clip at the dropped position
- selecting a dropped clip and pressing `Delete` removes it from both the live timeline and the saved source HTML
- valid MP4 uploads like `raycast.mp4` now succeed through the live Studio upload route instead of being rejected as unsupported media
## Notes
- the local `timeline-trio-verify` and `timeline-overlap-debug` projects used for verification are local-only and are not part of this PR
- this PR is about asset placement, upload correctness, and deletion safety; it does not broaden into richer editing workflows beyond placing/removing clips from the timeline
Guard buildHyperframesRuntimeScript() against missing entry.ts so it
returns null instead of crashing with esbuild stderr output. Add
getHyperframeRuntimeScript() that returns the pre-built IIFE as a
baked-in string constant — no esbuild, no file I/O, no import.meta.url.
Consolidate CLI runtime source resolution into a single module with
a clear priority chain: esbuild from source (dev) → inlined constant
(production) → pre-built artifact file (fallback).
Add CI smoke test that npm-packs the CLI, installs globally, runs
hyperframes preview, and asserts no stderr errors + runtime endpoint
returns JS.
Bump version to 0.4.16.
## Summary
- preserve authored non-root composition timing before runtime sanitization so Studio can build the correct master timeline for chained subcompositions
- prefer the fresh runtime source in Studio dev so local preview does not serve a stale `/api/runtime.js`
- restrict preserved authored timing inference to the Studio timeline payload instead of the general runtime resolver
## What this fixes
This PR fixes the Apple presentation class of failures where the root `index.html` / `Master` view looked correct at first and then collapsed into an incorrect short timeline.
Before this change:
- the master transport could report a short duration like `0:12` instead of the real deck length (`2:21` in the Apple project)
- composition clips bunched near the start instead of laying out sequentially across the deck
- seeking into later parts of the deck would land in the wrong place or show the wrong active composition
- local Studio debugging could be misleading because dev sometimes served a stale runtime bundle
After this change:
- the master transport reflects the authored composition-chain duration
- master clips resolve linearly across the whole deck
- late seeks land on the correct slide window
- Studio dev uses the current runtime implementation, so local preview matches the branch you are testing
## Root cause
There were two related issues:
1. Studio/master timeline inference lost authored composition timing
- missing timing attrs were treated like `0` instead of `null`
- non-root composition `data-duration` / `data-end` were stripped before Studio timing resolution could use them
- root duration inference trusted an incomplete live timeline window instead of the authored composition chain
2. Preserved authored timing leaked into the general runtime resolver
- preserving authored timing was correct for Studio timeline payload generation
- but using those preserved attrs for normal runtime playback/render resolution caused visual regressions in producer CI
- the follow-up fix keeps authored timing available only for Studio payload collection while normal runtime playback continues to resolve from the real live timeline/media state
## Why the later regression fix was needed
The initial runtime change fixed the Apple master timeline, but it also widened timing inference in the core runtime too far. That caused Dockerized producer regressions because rendered visibility started respecting preserved authored timing where it should have relied on the live resolved runtime state.
The latest commit fixes that by splitting the behavior:
- Studio timeline payload: authored timing allowed
- general runtime resolver: authored timing ignored by default
That preserves the Apple master timeline fix without changing producer render semantics.
## Verification
### Local checks
- `bunx oxlint packages/core/src/runtime/init.ts packages/core/src/runtime/startResolver.ts packages/core/src/runtime/timeline.ts packages/core/src/runtime/startResolver.test.ts packages/core/src/runtime/timeline.test.ts packages/studio/vite.config.ts packages/cli/src/server/studioServer.ts`
- `bunx oxfmt --check packages/core/src/runtime/init.ts packages/core/src/runtime/startResolver.ts packages/core/src/runtime/timeline.ts packages/core/src/runtime/startResolver.test.ts packages/core/src/runtime/timeline.test.ts packages/studio/vite.config.ts packages/cli/src/server/studioServer.ts`
- `bun run --filter @hyperframes/core typecheck`
- `bun run --filter @hyperframes/studio typecheck`
- `bun run --filter @hyperframes/cli typecheck`
- `cd packages/core && bun run test src/runtime/startResolver.test.ts src/runtime/timeline.test.ts`
- `bun test packages/cli/src/server/studioServer.test.ts --timeout 20000`
### Browser proof
Tested in Studio with `agent-browser` against the Apple presentation project.
- root/master transport now shows `0:00 / 2:21`
- master clip manifest resolves sequentially (`slide-1 -> slide-2 -> slide-3 ...`)
- seeking to `120s` lands on a late slide instead of a collapsed early timeline state
- after refreshing onto the fresh runtime source, the visible later-slide media advanced correctly in local Studio playback
### CI-equivalent regression proof on devbox
The previously failing producer regressions were rerun on devbox using the same Dockerized path GitHub Actions uses:
- `docker build -f Dockerfile.test -t hyperframes-producer:test .`
- `docker run ... hyperframes-producer:test style-1-prod style-5-prod style-9-prod style-12-prod --sequential`
Those previously failing suites all passed after the runtime split fix:
- `style-1-prod`
- `style-5-prod`
- `style-9-prod`
- `style-12-prod`
## Notes
- the Apple project volume tweak stayed local-only for testing and is not part of this PR
- this PR fixes the master/root timeline bug and the runtime regression it introduced; it does not add general subtimeline authoring support
## Summary
- gate timeline actions to clips Studio can control deterministically
- disable direct move/trim for generic GSAP-timed DOM clips
- add an in-clip `Copy to Agent` fallback for unsupported edits
## Why
Studio should only advertise timeline actions it can round-trip to source HTML with deterministic meaning.
This PR now follows that stricter rule:
- direct move/end-trim are only exposed for clips with a deterministic timeline window
- start trim is only exposed for clips with a real content-offset model
- unsupported motion clips now offer `Copy to Agent` so users still have a fast path to request source-level timing changes
In practice this means generic GSAP-authored DOM clips no longer pretend Studio can rewrite their visible timing just by patching `data-start` / `data-duration`.
## What changed
- added `hasPatchableTimelineTarget()` and `getTimelineEditCapabilities()` in `timelineEditing.ts`
- tightened deterministic-window detection so only media, images, and composition hosts keep direct move/end-trim controls
- kept wrapped media clips editable by recognizing real media metadata even when the host tag is a `div`
- updated `TimelineClip` / `Timeline` to guard interactions with the shared capability model
- added `buildTimelineElementAgentPrompt()` and a `Copy to Agent` fallback button for unsupported clips
- added focused tests for capability derivation and the agent-prompt helper
## Verification
### Automated
- `bun test packages/studio/src/player/components/timelineEditing.test.ts packages/studio/src/player/components/Timeline.test.ts packages/studio/src/player/store/playerStore.test.ts packages/studio/src/utils/sourcePatcher.test.ts`
- `bun run --filter @hyperframes/studio typecheck`
- `bunx oxlint packages/studio/src/player/components/Timeline.tsx packages/studio/src/player/components/timelineEditing.ts packages/studio/src/player/components/timelineEditing.test.ts packages/studio/src/player/components/TimelineClip.tsx`
- `bunx oxfmt --check packages/studio/src/player/components/Timeline.tsx packages/studio/src/player/components/timelineEditing.ts packages/studio/src/player/components/timelineEditing.test.ts packages/studio/src/player/components/TimelineClip.tsx`
### Browser
Verified in Studio with live browser automation against `http://127.0.0.1:4175/#project/timeline-edit-playground`:
- generic GSAP-timed clips (`feature-card`, `title-card`, `prompt-card`) show `Copy to Agent` and no direct move/trim affordances
- wrapped media (`media-card`) still exposes direct controls and remains draggable
- the local playground timings were realigned to match the authored GSAP positions, so preview visibility now matches the timeline windows during manual testing
Recording artifacts used during verification:
- `/tmp/timeline-capabilities-proof/capabilities-flow.webm`
- `/tmp/timeline-capabilities-proof/capabilities-agent-flow.webm`
## Summary
- hide the leading trim handle for timeline clips that cannot offset their own content
- keep leading trim available for media clips backed by playback offset metadata or source duration
- map visual row priority like a normal timeline editor: top timeline rows render above lower rows
## Why This Is Needed
Generic GSAP/DOM timeline clips do not have a playback-offset model like media clips do.
That means a left trim affordance on those clips is misleading today:
- users reasonably expect front trim to remove the beginning of the animation
- the current model can only shorten the clip window, not start the motion halfway through
Instead of exposing a control that implies unsupported behavior, this PR keeps true front trim only on clips that can actually offset their content.
The PR also fixes the stacking convention so the timeline matches normal editor expectations:
- visually higher track row = higher render priority
- visually lower track row = lower render priority
## Current Flow By Element Type
### Generic motion / DOM clips
Examples: `section`, `div`, `aside`, GSAP-driven cards and overlays.
Current supported flow:
- drag the whole clip horizontally to change `data-start`
- right-trim to shorten the end of the clip window
- move between tracks to change `data-track-index`
Not supported yet:
- true front trim that removes the beginning of the animation itself
Behavior after this PR:
- no interactive left trim handle is shown
- right trim still works
- horizontal move still works
### Media clips
Examples: `video` / `audio` clips, or wrappers carrying `data-media-start` / `data-playback-start`.
Current supported flow:
- drag the whole clip horizontally to change `data-start`
- left trim advances clip start and playback offset together
- right trim shortens `data-duration`
Behavior after this PR:
- both left and right trim handles remain available
- left trim persists `data-start` plus `data-media-start` / `data-playback-start`
- right trim persists `data-duration`
## Z-Index Rule
This PR now follows the normal timeline-editor convention:
- top visual row on the timeline = highest `z-index`
- lower visual rows = lower `z-index`
Concretely, because Studio renders tracks in ascending numeric order from top to bottom, lower numeric track values now map to higher `z-index` values.
## Validation
### Automated
- `bun test packages/studio/src/player/components/timelineEditing.test.ts packages/studio/src/player/components/Timeline.test.ts packages/studio/src/player/store/playerStore.test.ts packages/studio/src/utils/sourcePatcher.test.ts`
- `bun run --filter @hyperframes/studio typecheck`
### Browser verification
Verified with `agent-browser` on `timeline-edit-playground`:
- generic motion clips no longer expose an interactive left trim handle
- media clips still expose both trim handles
- left trim on `media-card` persisted `data-start` and `data-media-start`
- right trim on `media-card` persisted `data-duration` only
- moving `title-card` from the bottom row to the top row persisted the highest `z-index` for the top-row clips
- recordings:
- `/tmp/trim-fix-artifacts/trim-flow.webm`
- `/tmp/trim-fix-artifacts/z-index-flow.webm`
## Summary
Add the actual Studio timeline editing layer on top of the preview/runtime foundation.
This PR includes:
- drag-to-move clips across time and tracks
- left/right resize handles with media-aware trim persistence
- edge auto-scroll and edge track creation while dragging
- selector-based source patching for `data-start`, `data-duration`, `data-track-index`, `z-index`, and media trim attributes
- timeline UI cleanup, theming, hover/drag states, and the `Copy Prompt` action
## Why This PR Is Separate
This is the user-facing editing behavior. It depends on the preview/runtime fixes in the base PR, but it is much easier to review once that plumbing is isolated.
## Verification
- `bun run --filter @hyperframes/studio test`
- `bun run --filter @hyperframes/studio typecheck`
- `bunx oxlint packages/studio/src/App.tsx packages/studio/src/components/nle/NLELayout.tsx packages/studio/src/player/components/EditModal.tsx packages/studio/src/player/components/Timeline.tsx packages/studio/src/player/components/TimelineClip.tsx packages/studio/src/player/components/timelineEditing.ts packages/studio/src/player/components/timelineEditing.test.ts packages/studio/src/player/components/timelineTheme.ts packages/studio/src/player/components/timelineTheme.test.ts packages/studio/src/utils/sourcePatcher.ts packages/studio/src/utils/sourcePatcher.test.ts`
- `bunx oxfmt --check packages/studio/src/App.tsx packages/studio/src/components/nle/NLELayout.tsx packages/studio/src/player/components/EditModal.tsx packages/studio/src/player/components/Timeline.tsx packages/studio/src/player/components/TimelineClip.tsx packages/studio/src/player/components/timelineEditing.ts packages/studio/src/player/components/timelineEditing.test.ts packages/studio/src/player/components/timelineTheme.ts packages/studio/src/player/components/timelineTheme.test.ts packages/studio/src/utils/sourcePatcher.ts packages/studio/src/utils/sourcePatcher.test.ts`
## Browser Proof
- verified timeline drag / resize / trim flows in Studio with `agent-browser`
- verified preview hot-refresh behavior without iframe remount flashes
## Stack
- depends on #389
- followed by `fix: smooth scrubber end seeking`
[result.mp4 <span class="graphite__hidden">(uploaded via Graphite)</span> <img class="graphite__hidden" src="https://app.graphite.com/user-attachments/thumbnails/ca71c177-5042-468d-906f-b353938f40f8.mp4" />](https://app.graphite.com/user-attachments/video/ca71c177-5042-468d-906f-b353938f40f8.mp4)
## Summary
Stabilize the Studio preview/runtime path so timeline data, preview rendering, and thumbnails stay in sync.
This PR includes:
- preview hot-refresh without remounting the iframe
- runtime duration/timeline fixes so Studio stops drifting from playback state
- thumbnail and selector-based preview fixes
- local Studio runtime serving and player-resolution fixes so dev/CI do not depend on prebuilt player artifacts
- tests around preview identity and thumbnail/runtime behavior
## Why This PR Exists
This is the foundation layer for timeline editing. Without it, the editor was prone to:
- iframe remount flashes after saves
- duration mismatches between preview and timeline
- stale or incorrect thumbnails
- CI/test failures when `@hyperframes/player` artifacts were not prebuilt
## Verification
- `bun run --filter @hyperframes/studio test`
- `bun run --filter @hyperframes/studio typecheck`
- `bun run --filter @hyperframes/core typecheck`
- `bunx oxlint packages/cli/src/server/studioServer.ts packages/core/src/runtime/timeline.ts packages/core/src/runtime/timeline.test.ts packages/core/src/studio-api/routes/thumbnail.ts packages/core/src/studio-api/routes/thumbnail.test.ts packages/core/src/studio-api/types.ts packages/studio/src/components/nle/NLELayout.tsx packages/studio/src/components/nle/NLEPreview.tsx packages/studio/src/components/nle/NLEPreview.test.ts packages/studio/src/player/components/CompositionThumbnail.tsx packages/studio/src/player/components/Player.tsx packages/studio/src/player/hooks/useTimelinePlayer.ts packages/studio/src/player/store/playerStore.ts packages/studio/vite.config.ts`
- `bunx oxfmt --check packages/cli/src/server/studioServer.ts packages/core/src/runtime/timeline.ts packages/core/src/runtime/timeline.test.ts packages/core/src/studio-api/routes/thumbnail.ts packages/core/src/studio-api/routes/thumbnail.test.ts packages/core/src/studio-api/types.ts packages/studio/src/components/nle/NLELayout.tsx packages/studio/src/components/nle/NLEPreview.tsx packages/studio/src/components/nle/NLEPreview.test.ts packages/studio/src/player/components/CompositionThumbnail.tsx packages/studio/src/player/components/Player.tsx packages/studio/src/player/hooks/useTimelinePlayer.ts packages/studio/src/player/store/playerStore.ts packages/studio/vite.config.ts`
## Stack
- base of stack
- followed by `feat: add studio timeline editing`
- followed by `fix: smooth scrubber end seeking`
## Summary
This fixes a render-time audio correctness bug where Hyperframes applied a hidden post-mix gain to every rendered output, boosting audio by about +2.6 dB and causing clipping on normally leveled sources.
It also fixes a related mute bug where `data-volume="0"` was treated as falsy and silently converted back to full volume during audio track preparation.
Additionally, this PR fixes the Studio workspace typecheck path for `@hyperframes/player`, so local pre-commit/typecheck flows no longer depend on the Player package having been built first.
## Root Cause
The issue report measured a near-constant gain increase and suspected a hidden normalization step. After tracing the engine audio path, the root cause turned out to be explicit code, not FFmpeg behavior:
- `packages/engine/src/config.ts` defaulted `audioGain` to `1.35`
- `packages/engine/src/services/audioMixer.ts` always appended a post-mix FFmpeg filter:
- `[mixed]volume=${masterOutputGain}[out]`
- with the default config, that meant every render got multiplied by `1.35`
That exactly matches the issue reporter's measured scalar boost.
While investigating the workaround, I also found a second correctness bug:
- `processCompositionAudio()` used `element.volume || 1.0`
- that coerced `0` to `1.0`
- so `data-volume="0"` did not actually mute the track in rendered output
Separately, the repo-level Studio typecheck could fail before any build step because:
- `packages/studio/src/player/components/Player.tsx` imports `@hyperframes/player`
- `packages/player/package.json` points TypeScript at built `dist/*` outputs
- in a fresh workspace, those built outputs may not exist yet
- Studio therefore failed type resolution for `@hyperframes/player` during pre-commit/typecheck
## What Changed
1. Set the engine default `audioGain` back to unity (`1`)
2. Preserve explicit zero volumes by changing `element.volume || 1.0` to `element.volume ?? 1.0`
3. Added regression coverage for both behaviors
4. Updated the producer-side config fixture to reflect the corrected default
5. Added a Studio tsconfig path mapping for `@hyperframes/player` to the local workspace source and widened `rootDir` so workspace typecheck succeeds without requiring a prior Player build
## Why These Changes Are Needed
This is not a UX preference issue; it is a correctness and API contract issue.
- The docs describe `data-volume` as a direct 0-1 control.
- Rendered output should preserve source levels unless the author explicitly changes them.
- Hidden global gain makes output non-deterministic from the author's perspective.
- `data-volume="0"` must mean silence, not full-volume playback.
- Local workspace typecheck should not require unrelated package build artifacts to exist first.
Leaving the current behavior in place means:
- voice recordings near normal peak levels can clip during render
- authors need undocumented manual compensation (`0.75`-ish scaling) to get unity output
- mute semantics in docs and code diverge
- local pre-commit/typecheck can fail for reasons unrelated to the actual diff being committed
## Testing
### Focused regression tests
Ran:
- `packages/engine/node_modules/.bin/vitest run packages/engine/src/config.test.ts packages/engine/src/services/audioMixer.test.ts`
Result:
- `10 passed`
These tests specifically verify:
- default resolved `audioGain` is `1`
- a track with `volume: 0` stays `volume=0` in the FFmpeg filter graph
- the post-mix output filter stays at unity gain (`[mixed]volume=1[out]`)
### Broader package verification
Ran:
- `bun run --filter @hyperframes/engine test`
- `bun run --filter @hyperframes/engine build`
- `packages/engine/node_modules/.bin/vitest run packages/producer/src/services/renderOrchestrator.test.ts`
- `bun run --filter @hyperframes/producer typecheck`
- `bun run --filter @hyperframes/studio typecheck`
- `bunx oxlint packages/engine/src/config.ts packages/engine/src/config.test.ts packages/engine/src/services/audioMixer.ts packages/engine/src/services/audioMixer.test.ts packages/producer/src/services/renderOrchestrator.test.ts`
- `bunx oxfmt packages/engine/src/config.ts packages/engine/src/config.test.ts packages/engine/src/services/audioMixer.ts packages/engine/src/services/audioMixer.test.ts packages/producer/src/services/renderOrchestrator.test.ts packages/studio/tsconfig.json`
- `bunx lefthook run pre-commit`
Results:
- full engine test suite passed (`309 passed`)
- engine build passed
- touched producer test file passed (`7 passed`)
- producer typecheck passed
- studio typecheck passed
- oxlint passed with `0 warnings, 0 errors`
- formatting passed
- pre-commit hook no longer hits the prior `@hyperframes/player` module-resolution blocker
## Known Verification Limitation
There is no meaningful browser UI flow for this bug: the defect is in the engine/CLI audio render pipeline rather than an interactive browser surface. Because of that, verification was done at the renderer and test level rather than through an agent-browser flow.
## User Impact
After this change:
- rendered audio matches source level by default
- authors no longer need to compensate for a hidden +2.6 dB boost
- `data-volume="0"` correctly mutes rendered audio
- the documented volume contract matches engine behavior again
- local workspace typecheck no longer depends on prebuilt `@hyperframes/player` artifacts
Closes#361.
## Summary
Today users have to run `hyperframes upgrade` (or the right install command for their package manager) to get a new release — we ship fixes but they don't reach the install until the user remembers. This PR borrows the Claude Code model: detect the update on run N, install it in a detached background child, surface one line ("hyperframes auto-updated to vX.Y.Z") on run N+1. The user's current command never blocks, never prompts, never sees an install stream.
## Flow across two runs
```
Run N → checkForUpdate() sees latest > current → spawn detached
child running `npm install -g hyperframes@X` (or bun /
pnpm / brew equivalent). Parent exits immediately.
(between) → detached child installs, writes completedUpdate into
~/.hyperframes/config.json, clears pendingUpdate.
Run N+1 → reportCompletedUpdate() prints one line and clears the
marker. User is on the new version.
```
## Installer detection
Walks `realpathSync(process.argv[1])` against each package manager's well-known global prefix. Wrong guesses are biased toward `skip` — we'd rather miss an auto-update than clobber a Homebrew install with npm.
| Resolved entry path contains | Detected as | Install command |
|---|---|---|
| `…/Cellar/hyperframes/<v>/…` | `brew` | `brew upgrade hyperframes` |
| `…/.bun/…` | `bun` | `bun add -g hyperframes@<v>` |
| `…/pnpm/global/…` or `…/.pnpm/…` | `pnpm` | `pnpm add -g hyperframes@<v>` |
| `…/lib/node_modules/hyperframes/…` | `npm` | `npm install -g hyperframes@<v>` |
| `…/packages/cli/…` (workspace link) | `skip` | (no-op) |
| `…/_npx/…`, `…/bunx-…/…` | `skip` | (no-op) |
| Anything else | `skip` | (no-op) |
## Guardrails
- **Never auto-update across a major version.** The existing banner still nudges the user to run `hyperframes upgrade` explicitly.
- **Skip on CI, non-TTY, dev mode,** npx / bunx / workspace link, or any install layout the detector doesn't recognize.
- **`HYPERFRAMES_NO_AUTO_INSTALL=1`** disables the install without silencing the notice banner.
- **`HYPERFRAMES_NO_UPDATE_CHECK=1`** silences both (existing knob).
- **Fresh pending install (<10 min old)** prevents re-launch on every invocation.
- **Installer stdout + stderr go to `~/.hyperframes/auto-update.log`** for postmortem — the terminal stays clean.
- **Failed installs are surfaced once** with a prompt to run `hyperframes upgrade` manually.
## What changed
| File | Role |
|---|---|
| `packages/cli/src/utils/installerDetection.ts` | Classifies the running install → npm \| bun \| pnpm \| brew \| skip, with the right install command. |
| `packages/cli/src/utils/autoUpdate.ts` | `scheduleBackgroundInstall` + `reportCompletedUpdate`. Spawns a detached `node -e "..."` child that runs the install and writes the outcome back to the config, then `unref()`s so the parent exits immediately. |
| `packages/cli/src/telemetry/config.ts` | `pendingUpdate` + `completedUpdate` fields on the config schema. |
| `packages/cli/src/cli.ts` | Wires `reportCompletedUpdate()` at startup and `scheduleBackgroundInstall()` after `checkForUpdate()` resolves. |
## Verification
### Unit tests — 19 / 19 pass (full CLI suite 115 / 115)
- `installerDetection.test.ts` — 9 cases, one per layout (workspace, npx, bunx, brew, bun, pnpm, npm, unknown, unresolved).
- `autoUpdate.test.ts` — 10 scheduling-policy cases:
- Minor/patch → schedules + writes pendingUpdate
- Major bump → **does not** schedule
- Dev mode → skipped
- `CI=1` → skipped
- `HYPERFRAMES_NO_AUTO_INSTALL=1` → skipped
- Unknown installer → skipped
- Already-on-latest → skipped
- Fresh pending install → de-duplicated
- Stale pending install (>10 min) → supersedes
- Previous run already completed this version → skipped
Unit tests mock `spawn` and the installer — they verify the **policy**, not the real detached-child path.
### Live end-to-end smoke test (on this Mac, real processes)
To validate the parts the unit tests can't — actual detached spawn, real config writeback, banner surfacing in a fresh subsequent process — I wired a smoke script that exercises the exact same code path `autoUpdate.ts` uses, but with `echo …` as the "install command" so nothing global gets touched.
**Steps exercised:**
1. Backed up the user's real `~/.hyperframes/config.json`.
2. Wrote a `pendingUpdate` marker for version `0.4.99` (like `scheduleBackgroundInstall` does).
3. Spawned the **exact same detached `node -e "..."` child** the real scheduler produces, with the install command replaced by `echo 'faux install for 0.4.99'`.
4. The parent `unref()`d and continued; 800 ms later the parent re-read `config.json`.
5. Ran `reportCompletedUpdate()` in a **fresh subprocess** (via `bunx tsx -e ...`) to match the real "Run N+1" conditions, capturing its stderr.
6. Asserted the marker was cleared.
7. Restored the original config on exit.
**Observed output:**
```
[setup] Backed up config to /Users/miguel/.hyperframes/config.json.smoke-backup
[setup] Wrote pendingUpdate for v0.4.99
[spawn] Detached child pid=49469
[after] completedUpdate = {"version":"0.4.99","ok":true,"finishedAt":"2026-04-17T17:26:50.115Z"}
[after] pendingUpdate = (cleared)
✓ detached spawn + writeback verified
[banner-subprocess] stderr: "hyperframes auto-updated to v0.4.99"
✓ banner fired in fresh process + marker cleared
ALL CHECKS PASSED ✓
[cleanup] Config restored
```
**What this proves:**
| Claim | Evidence |
|---|---|
| Detached spawn works (doesn't block the parent) | `[spawn] pid=49469` logged, parent continued immediately |
| Detached child is process-independent | Parent exited its own work while child ran `exec(CMD)` |
| Child writes correct config shape | `completedUpdate = { version: "0.4.99", ok: true, finishedAt: … }` |
| Child clears the pending marker | `pendingUpdate = (cleared)` |
| Banner fires only in a fresh process | Subprocess stderr = `"hyperframes auto-updated to v0.4.99"` |
| Banner message format | Matches the copy in `autoUpdate.ts:reportCompletedUpdate` exactly |
| Marker clears after banner | Second file read shows `completedUpdate` absent |
Both the original test-plan checkboxes (fresh install, `HYPERFRAMES_NO_AUTO_INSTALL=1`, `CI=1`) are covered by either the unit-test suite or this smoke test — the scheduling-policy gates are unit-tested under `CI=true`, and the real detached-spawn path is smoke-tested above.
### What's still worth doing
- **Physical installer test on a real `npm i -g` / `brew` / `bun add -g` environment** — the smoke test above replaces the install command with `echo`, so we've never actually seen npm/bun/brew run the real command. That's the one remaining unknown. Worth one manual run on the maintainer's machine before cutting v0.4.4.
## Test plan
- [x] `bunx vitest run` on `packages/cli` — 115 / 115 pass (incl. 19 new)
- [x] `tsc --noEmit` clean
- [x] `tsup` build clean
- [x] **Live e2e smoke test** exercising the real detached spawn + config writeback + fresh-process banner (output above)
- [x] CI green on this branch (Typecheck, Test, Test: runtime contract, Build, Lint, Format)
- [ ] One manual run on a physical `npm i -g hyperframes@0.4.2` install to confirm the real `npm install -g hyperframes@0.4.3` command actually runs when `autoUpdate.ts` delegates to it (the smoke test stopped short of executing `npm`)
## Notes
- Independent of any version bump — ship whenever.
- The existing `checkForUpdate` + `printUpdateNotice` still work unchanged; this PR adds a second stage that *applies* the update rather than just telling the user about it.
- `hyperframes upgrade` still exists and is still the right command for explicit upgrades (especially major-version jumps).
Miguel Ángel