* feat(media): alpha-capable authoring proxies
Alpha sources were refused a proxy before the codec map ever asked whether the
browser could decode them, so a ProRes 4444 alpha file (which no browser
previews at all) rendered black forever, while an alpha WebM (which previews
fine) was already covered by the browser-safe check on the next line. The alpha
veto earned nothing and cost the one case that needed help.
Alpha is now a target-codec choice rather than a veto: alpha sources transcode
to VP9 + yuva420p in WebM, everything else keeps the existing H.264/MP4 path
byte for byte. Only files no browser can preview are proxied, which is the rule
the runtime already followed everywhere else.
WebM cannot carry AAC, so the VP9 path uses Opus and drops the MP4-only
faststart flag. PROXY_PARAMS_VERSION moves to v3 so clients stop serving the
previously cached proxies.
Safari does not decode VP9 alpha and still shows black for alpha sources, as it
does today: this is better on Chromium and Firefox and no worse anywhere.
* fix(media): infer proxy variant for rescue
* fix(media): preserve alpha proxy hardening after restack
* docs(media): document automatic proxying for hostile codecs
Describes the shipped behavior: which input codecs render, that live preview
auto-proxies what the browser cannot decode, where the cache lives, and how to
turn it off. Carries the skills notes and the hardening design documents.
* docs(media): align proxy guidance with runtime
* feat(studio-server): serve H.264 proxies from the preview route
Wires the codec manifest and the transcoder into the preview surface: the route
negotiates a proxy via a query param and serves it through the existing range
and ETag machinery, composition HTML carries a codec map for the runtime, and
hostile assets pre-warm so a first play does not wait on a cold transcode.
Exposes the three subpath exports the CLI surfaces consume upstack.
Drops the TEMP fallow entry added with the transcoder: it has real importers now.
* fix(studio-server): publish media proxy exports
* fix(parsers): scan HTML comments linearly
* feat(cli): let projects opt out of automatic proxying
Adds media.autoProxy to hyperframes.json plus --proxy/--no-proxy flags, and
forwards the resolved value into the studio and preview servers and the vite
adapter. Lands before the runtime slice that turns auto-proxying on, so the
switch exists before there is any behavior to switch off.
* fix(cli): align media config schema
* feat(core): swap undecodable video to its proxy at runtime
Adds the browser-side half: before first load the runtime consults the injected
codec map and swaps a hostile source to its proxy, and if a video still reports
zero decodable width it rescues it reactively. An HEVC file carrying AAC fires
no error event, so zero videoWidth, not the error event, is the reliable signal.
Audio elements and alpha sources are never proxied, render mode never proxies,
and each swap evicts the element's stale sync state and reports once.
This completes the loop: auto-proxying is live for preview and studio from here.
The opt-out (media.autoProxy, --no-proxy) shipped in the previous slice.
* feat(cli): serve proxies from play, present, and the static project server
Adds proxy negotiation to the CLI-side servers and gives play byte-range
serving it never had, so a swapped video can seek. The static project server
behind check, snapshot, compare and friends injects the codec map once, so all
of its callers inherit the behavior; snapshot forwards its own proxy flag.
* fix(cli): serve proxies for camera formats
* feat(cli): resolve proxies before check's timed browser phase
check pre-resolves hostile assets so a cold transcode cannot exhaust the
render-ready budget, and surfaces the runtime's proxy diagnostics as findings
so a swap is visible rather than silent.
* feat(cli): bake proxies into published archives
Published pages are static, so there is no server to negotiate with: publish
transcodes proxies for hostile assets into the archive and rewrites the video
sources that point at them. Audio elements keep their originals, since audio
decodes independently of the video codec.
Splits the archive build from the zip step so publish can transform between
them. cloud render keeps calling the unchanged composition and still uploads
originals, which its regression test pins.
* fix(cli): harden proxy pre-resolution
* fix(cli): surface publish proxy outcomes
* test(cli): remove ffmpeg from archive guard
* test(cli): normalize publish fixture path
## What
Part 2 of the GSAP seek-safety rules (stacks on #2611): the two rules that touch existing catalog content and required reconciliation with an existing rule.
- `gsap_relative_value_second_writer` (error) — a relative var value (`y: "-=15"`) on a property whose target has another writer **active at the relative tween's start**. The relative base is captured at tween init, which reads a different partial state per seek path: sequential seek inits it mid-entrance, a cold render worker inits it at the entrance's end state, and the element teleports at chunk boundaries (production case: all scene nodes jumping ~20px mid-scene). Writers that complete strictly before the start are safe (children render in start-time order within a seek pass — verified against gsap 3.15.0) and are not flagged; neither are single-writer relatives, `from()`/`fromTo()`, build-time `gsap.set`, or relative position parameters (`"+=0.5"`). Selector resolution bails on combinators and cross-composition scoping rather than guessing. Findings aggregate per tween pair and report the overlap window.
- `gsap_timeline_set_initial_hide` (warning) — initial-state hiding via `tl.set(target, vars, 0)` on a paused timeline is not rendered while the playhead sits at exactly 0, so frame 0 shows the unhidden state (verified against gsap 3.15.0: opacity stays 1 after `tl.time(0)`, applies only past 0). Exempt when the target is already hidden by authored CSS/inline styles or a standalone `gsap.set()`, and only sets preceding every tween in source order qualify (mutated position variables resolve to their initial binding in the parser — outro hard-kills don't masquerade as position-0 sets).
- Reconciliation: `gsap_fullscreen_overlay_starts_visible`'s fixHint previously recommended exactly the flagged `tl.set(sel, {opacity:0}, 0)` pattern; it now recommends authored CSS hiding or immediate `gsap.set()`.
- Docs for the full rule family in `docs/packages/lint.mdx`.
## Corpus impact (the reason this is its own PR)
These two rules are the ones that fire on repo-shipped content:
- `gsap_relative_value_second_writer`: 4 errors in `gooey-metaball`, all genuine overlaps. Measured with gsap 3.15.0: ballD diverges **3.31 xPercent / 1.99 yPercent (~8px/5px at 240px ball size)** between sequential and cold seek — a permanent base offset that appears as a teleport at a chunk boundary. Real but modest; happy to fix the block in a follow-up (start the drift at the entrance's end, or use absolute `fromTo`).
- `gsap_timeline_set_initial_hide`: 10 warnings across the catalog after the CSS-hidden exemption (down from 54 pre-narrowing); spot-checked as genuine frame-0 pops with no authored hide (e.g. `vfx-text-cursor` `#phrase-b`).
Adversarially reviewed the same way as #2611 (393-composition corpus + gsap semantics experiments); FP classes fixed and locked as negative tests: precede-only second writers, descendant/cross-composition selector mis-joins, CSS-hidden re-assertions, mutated position variables.
## Tests
Full `packages/lint` suite green at 440 tests including multi-composition roots; `tsc`, oxlint, fallow audit clean.
## What
Five lint rules (plus one extended core pattern) for GSAP defect classes that pass every existing check but break rendered output — the narrow, corpus-clean half of what was originally one PR (split per review; part 2 with the two catalog-touching rules stacks on top as #2612).
- `gsap_repeat_refresh_relative_value` (error) — `repeatRefresh: true` + relative value re-captures and accumulates per iteration; a cold seek into iteration N skips the accumulation (verified with gsap 3.15.0: sequential 47.5 vs cold 17.5).
- `gsap_function_value_hazard` (error/warning) — function values that call a method on the first parameter (GSAP passes `(index, target, targets)` — the first param is a number, so `(el) => el.getTotalLength()` throws and aborts the seeked frame) or measure the DOM: transform-sensitive reads (`getBoundingClientRect`, `getComputedStyle`, `gsap.getProperty`) are errors; transform-invariant layout reads (`offsetWidth`, `getBBox`, ...) are warnings. Pure-index arithmetic, `gsap.utils.wrap/distribute`, dataset/attribute reads, and closures over build-time constants are exempt.
- `gsap_callback_dom_measurement` (warning) — DOM layout measurement reachable from `tl.add()`/`tl.call()`/`eventCallback`/`onStart|onUpdate|...` via a two-hop named-function scan. The capture path seeks with `suppressEvents: false`, so callbacks re-fire on every seek and measured geometry is seek-order-dependent. `gsap.getProperty`-driven derived output (scramble/typewriter patterns) is exempt.
- `svg_measure_before_path_d` (error/warning) — `getTotalLength()` on a `<path>` with no static `d`: error when no `d` assignment exists anywhere (returns 0 in Chrome, silently killing dash animations); warning when assignments exist only inside function bodies. Recognizes `setAttribute`, GSAP `attr: { d }`, and CSS `d: path()`.
- `svg_drawon_css_dasharray_conflict` (error) — GSAP `strokeDasharray` on an element whose CSS declares a multi-component `stroke-dasharray`. GSAP merges per component, so `strokeDasharray: pathLength` computes to `"641.4px, 10px"` — the gap stays 10px, the hide-then-reveal hides only 10px, and the line stays visible all scene with a crawling notch. One of this repo's own producer fixtures has this exact bug (true positive from the corpus run).
- `gsap.utils.random()` and `"random(...)"` string tween values added to `non_deterministic_code` (core) — each worker inits independently, so the same tween resolves different randoms across chunks.
Both motivating production bugs (nodes teleporting at chunk boundaries; a draw-on line visible all scene) are minimally reproduced in the tests.
## Review hardening
Two independent adversarial reviews ran before submission: a false-positive hunt over all 393 compositions in this repo plus 23 constructed adversarial snippets (with gsap 3.15.0 semantics experiments), and a maintainer-conventions pass. Fixed FP classes are locked in as negative tests: all-interpolation template ids, GSAP attr-plugin `d` writes, getProperty-driven callbacks, transform-invariant marquee reads.
Corpus residue for these five rules: **1 error (a genuine dasharray bug in a producer fixture, happy to fix in a follow-up) and 2 warnings** (real layout reads in callbacks).
## Tests
`packages/lint` green at this commit in isolation; `tsc`, oxlint, fallow audit clean.
## Notes for reviewers
- All rules follow the file's conservative philosophy: anything not statically resolvable is skipped; false negatives over false positives.
- Open question: should the cold-seek family gate on `HyperframeLinterOptions.distributed` (error when distributed, warning otherwise), following the `system_font_will_alias` precedent? Happy to wire either way.
Addresses C1-C7 from Rames's adversarial review + N2/N3 nits:
- C1 (positionFixed): inline probe now value-scopes to 'fixed' — previously
fired on any position value (absolute, relative, sticky), producing a
false-positive anatomy that would mislead maintainers pattern-matching
the 'sub-comp + position:fixed capture' bug family.
- C2 (overflowHidden): symmetric fix — inline path now catches
style='overflow: hidden' via the value-scoped probe, matching the
<style>-tag branch. Also handles overflow-x/overflow-y variants.
- C3 (VISUAL_DEFECT_KEYWORDS): drop 'render' — CLI's primary command is
'hyperframes render', so build/perf/hang reports were triggering an
inappropriate COMPOSITION_STRUCTURE: nudge on the most common failure
mode. Rely on the more specific tokens (black, blank, flicker, corrupt,
wrong frame) to identify actual visual defects.
- C4 (mentionsVisualDefect): compile keywords into a word-bounded regex.
'blackboard', 'blanket', 'visualize', 'corruptible' no longer false-
positive. Accepted tradeoff: plural forms ('flickers') don't match.
- C5 (marker case-normalization): REPRO COMMAND: / COMPOSITION_STRUCTURE:
checks now case-insensitive, matching mentionsVisualDefect's
normalization. Reporters using 'Repro command:' or lowercase
'composition_structure:' get credit for compliance.
- C6 (background/mask shorthand): inline branch previously required the
longhand 'background-image:' / 'mask-image:' — style='background:
url(bg.png)' silently returned false. Now checks both longhand AND
shorthand-with-url() inline forms.
- C7 (usesGsap docstring): trim promise of data-gsap-* attribute scanning
that detectGsap never implemented — attribute scan lives outside the
<script>-only detection path.
- N2 (EMPTY_VALUES): include 'inherit', 'revert', 'revert-layer' — a
style='position: inherit' is authored intent to defer, not authored
intent to place.
- N3 (input size cap): early-exit to a zero census on HTML > 20 MB
rather than feeding linkedom a hostile input. Not expected in normal
usage; guard for future callers that might pass raw user uploads.
Extends the test locks: 6 new census tests (value-scoping, size cap) and
5 new lint tests (word-boundary rejections, render-noise rejections,
lowercase-marker acceptance). All existing tests unchanged in intent —
only the 'flickers' plural in one test updated to 'flicker' to reflect
the new word-boundary rule.
No behavior change to the wire path: lint is still soft-warn, census is
still never called from feedback.ts, no new dependencies.
* feat(studio-server): serve H.264 proxies from the preview route
Wires the codec manifest and the transcoder into the preview surface: the route
negotiates a proxy via a query param and serves it through the existing range
and ETag machinery, composition HTML carries a codec map for the runtime, and
hostile assets pre-warm so a first play does not wait on a cold transcode.
Exposes the three subpath exports the CLI surfaces consume upstack.
Drops the TEMP fallow entry added with the transcoder: it has real importers now.
* fix(studio-server): publish media proxy exports
* fix(parsers): scan HTML comments linearly
* feat(cli): let projects opt out of automatic proxying
Adds media.autoProxy to hyperframes.json plus --proxy/--no-proxy flags, and
forwards the resolved value into the studio and preview servers and the vite
adapter. Lands before the runtime slice that turns auto-proxying on, so the
switch exists before there is any behavior to switch off.
* fix(cli): align media config schema
* feat(core): swap undecodable video to its proxy at runtime
Adds the browser-side half: before first load the runtime consults the injected
codec map and swaps a hostile source to its proxy, and if a video still reports
zero decodable width it rescues it reactively. An HEVC file carrying AAC fires
no error event, so zero videoWidth, not the error event, is the reliable signal.
Audio elements and alpha sources are never proxied, render mode never proxies,
and each swap evicts the element's stale sync state and reports once.
This completes the loop: auto-proxying is live for preview and studio from here.
The opt-out (media.autoProxy, --no-proxy) shipped in the previous slice.
* feat(cli): serve proxies from play, present, and the static project server
Adds proxy negotiation to the CLI-side servers and gives play byte-range
serving it never had, so a swapped video can seek. The static project server
behind check, snapshot, compare and friends injects the codec map once, so all
of its callers inherit the behavior; snapshot forwards its own proxy flag.
* fix(cli): serve proxies for camera formats
* feat(cli): resolve proxies before check's timed browser phase
check pre-resolves hostile assets so a cold transcode cannot exhaust the
render-ready budget, and surfaces the runtime's proxy diagnostics as findings
so a swap is visible rather than silent.
* fix(cli): harden proxy pre-resolution
`main`'s Test job is red: studioServer.test.ts fails to collect with "Failed to
resolve entry for package @hyperframes/producer".
studioServer.ts has long carried `await import("@hyperframes/producer")`, but
nothing under test imported that module until #2591 added a suite that does.
Vite's import analysis resolves the specifier at transform time, and the CI test
job builds only parsers, lint, studio-server and core, so the package has no
dist to resolve and the whole file fails to collect. It passes locally only
because a full `bun run build` happens to build the producer first.
The tsup build already aliases this specifier to the producer's source, because
the CLI bundles the producer rather than depending on it at runtime. The test
config now resolves it the same way, so the tooling agrees with the build. The
neighbouring @hyperframes/core alias exists for the same class of reason.
Config only: no source change, so the shipped bundle still inlines the producer
and installed users are unaffected.
Verified by reproducing the CI condition locally (producer dist removed):
studioServer.test.ts fails without this change and passes with it, and the built
cli.js still contains no runtime import of @hyperframes/producer.
The added `for...of` loop over `lintFeedbackComment` warnings pushed the
`run` function's cyclomatic complexity from 4 to 5, landing the CRAP
score at exactly the 30.0 Fallow threshold. Extract the loop into
`printFeedbackLintWarnings` so `run` stays a flat driver — the helper
carries the incidental complexity.
No behavior change; all 29 unit tests + typecheck + oxlint + oxfmt +
local `fallow audit --base origin/main` pass clean.
* feat(studio-server): serve H.264 proxies from the preview route
Wires the codec manifest and the transcoder into the preview surface: the route
negotiates a proxy via a query param and serves it through the existing range
and ETag machinery, composition HTML carries a codec map for the runtime, and
hostile assets pre-warm so a first play does not wait on a cold transcode.
Exposes the three subpath exports the CLI surfaces consume upstack.
Drops the TEMP fallow entry added with the transcoder: it has real importers now.
* fix(studio-server): publish media proxy exports
* fix(parsers): scan HTML comments linearly
* feat(cli): let projects opt out of automatic proxying
Adds media.autoProxy to hyperframes.json plus --proxy/--no-proxy flags, and
forwards the resolved value into the studio and preview servers and the vite
adapter. Lands before the runtime slice that turns auto-proxying on, so the
switch exists before there is any behavior to switch off.
* fix(cli): align media config schema
* feat(core): swap undecodable video to its proxy at runtime
Adds the browser-side half: before first load the runtime consults the injected
codec map and swaps a hostile source to its proxy, and if a video still reports
zero decodable width it rescues it reactively. An HEVC file carrying AAC fires
no error event, so zero videoWidth, not the error event, is the reliable signal.
Audio elements and alpha sources are never proxied, render mode never proxies,
and each swap evicts the element's stale sync state and reports once.
This completes the loop: auto-proxying is live for preview and studio from here.
The opt-out (media.autoProxy, --no-proxy) shipped in the previous slice.
* feat(cli): serve proxies from play, present, and the static project server
Adds proxy negotiation to the CLI-side servers and gives play byte-range
serving it never had, so a swapped video can seek. The static project server
behind check, snapshot, compare and friends injects the codec map once, so all
of its callers inherit the behavior; snapshot forwards its own proxy flag.
* fix(cli): serve proxies for camera formats
* feat(studio-server): serve H.264 proxies from the preview route
Wires the codec manifest and the transcoder into the preview surface: the route
negotiates a proxy via a query param and serves it through the existing range
and ETag machinery, composition HTML carries a codec map for the runtime, and
hostile assets pre-warm so a first play does not wait on a cold transcode.
Exposes the three subpath exports the CLI surfaces consume upstack.
Drops the TEMP fallow entry added with the transcoder: it has real importers now.
* fix(studio-server): publish media proxy exports
* fix(parsers): scan HTML comments linearly
* feat(cli): let projects opt out of automatic proxying
Adds media.autoProxy to hyperframes.json plus --proxy/--no-proxy flags, and
forwards the resolved value into the studio and preview servers and the vite
adapter. Lands before the runtime slice that turns auto-proxying on, so the
switch exists before there is any behavior to switch off.
* fix(cli): align media config schema
* feat(core): swap undecodable video to its proxy at runtime
Adds the browser-side half: before first load the runtime consults the injected
codec map and swaps a hostile source to its proxy, and if a video still reports
zero decodable width it rescues it reactively. An HEVC file carrying AAC fires
no error event, so zero videoWidth, not the error event, is the reliable signal.
Audio elements and alpha sources are never proxied, render mode never proxies,
and each swap evicts the element's stale sync state and reports once.
This completes the loop: auto-proxying is live for preview and studio from here.
The opt-out (media.autoProxy, --no-proxy) shipped in the previous slice.
* feat(studio-server): serve H.264 proxies from the preview route
Wires the codec manifest and the transcoder into the preview surface: the route
negotiates a proxy via a query param and serves it through the existing range
and ETag machinery, composition HTML carries a codec map for the runtime, and
hostile assets pre-warm so a first play does not wait on a cold transcode.
Exposes the three subpath exports the CLI surfaces consume upstack.
Drops the TEMP fallow entry added with the transcoder: it has real importers now.
* fix(studio-server): publish media proxy exports
* fix(parsers): scan HTML comments linearly
* feat(cli): let projects opt out of automatic proxying
Adds media.autoProxy to hyperframes.json plus --proxy/--no-proxy flags, and
forwards the resolved value into the studio and preview servers and the vite
adapter. Lands before the runtime slice that turns auto-proxying on, so the
switch exists before there is any behavior to switch off.
* fix(cli): align media config schema
* feat(studio-server): serve H.264 proxies from the preview route
Wires the codec manifest and the transcoder into the preview surface: the route
negotiates a proxy via a query param and serves it through the existing range
and ETag machinery, composition HTML carries a codec map for the runtime, and
hostile assets pre-warm so a first play does not wait on a cold transcode.
Exposes the three subpath exports the CLI surfaces consume upstack.
Drops the TEMP fallow entry added with the transcoder: it has real importers now.
* fix(studio-server): publish media proxy exports
* fix(parsers): scan HTML comments linearly
Extend the CLI feedback reproduction packet (#2498) with a fifth
mandated field, `COMPOSITION_STRUCTURE:`, and enforce presence of
`REPRO COMMAND:` / `COMPOSITION_STRUCTURE:` at feedback-submit time.
- Skill + reference now specify `COMPOSITION_STRUCTURE:` — a
privacy-preserving structural anatomy (element census + attribute
presence + timeline shape + delta + defect location) — required for
any rating <=7 that describes a visual defect.
- `buildCompositionCensus()` + `renderCompositionCensusBlock()`
auto-fill the block from composition HTML so agents don't ask the
human user to hand-count `<video>` / `<img>` / sub-comp mounts.
Counts + presence flags only — no file paths, no src URLs, no user
text.
- `hyperframes feedback` soft-warns (never blocks) when a non-10
`--comment` is missing `REPRO COMMAND:`, and when a rating-<=7
visual-defect comment is missing `COMPOSITION_STRUCTURE:`. The
warning points at the auto-census helper so agents remediate
themselves.
- `coreSkillContent.test.ts` locks the new literal in both the skill
and the reference file, following #2498's pattern.
Extends #2498. Follow-up: no change to `doctorSummary` generation, no
change to the feedback-submission API endpoint, no refactor of
#2498's doc-content Jest test.
Signed-off-by: Via
Fallow audit failed on the parent PR (#2563) with 8 findings, all of them
tracing back to line-shift fingerprint invalidation on pre-existing complexity/
duplication, plus one new-but-easily-simplified CRAP finding on the CSS.escape
polyfill in picker.test.ts.
Actions:
- picker.ts: 5 pre-existing inherited-complexity findings (isEffectivelyHidden,
isPickableElement, buildElementLabel, getPickCandidatesFromPoint,
pickManyAtPoint). All in the file at the parent SHA. The one-line
buildElementSelector edit (+ 3-line comment) shifted every function below
it, re-triggering the fingerprint. Added to health.ignore with rationale.
- screenshotClip.ts + vite.browser.ts: 19-line clip-computation clone that
pre-dates this PR — the try/catch guard around querySelectorAll shifted
screenshotClip.ts's clone-start line, re-flagging the inherited duplication.
Added both files to duplicates.ignore with rationale (splitting the clone
would require crossing puppeteer's page.evaluate serialization boundary).
- picker.test.ts CSS.escape polyfill: simplified from a 15-line char-by-char
loop (CRAP 56.3, cyclo 14) to a compact regex + leading-digit special case
(~4 cyclo). Still handles the digit-leading case this PR's regression test
needs (`#0` -> `#\30 `); the round-trip through querySelector still asserts
the element is picked back. All 16 picker tests + 3 screenshotClip tests
still pass locally.
Change by Via
Addresses Miga's SSOT review on #2564. The render command was
inlining the disable-alias list (["off","none","false","0"]) instead
of importing the exported constant, defeating the drift-safety the
constant exists to provide. Also switches the flag description string
to interpolate the alias set from the constant for consistency.
_— Via_
* feat(studio-server): bound the proxy cache with LRU accounting
Adds cache accounting and bounded cleanup for transcoded proxies, and keeps
.transcode-cache out of git. Standalone: the transcoder consumes it next.
* feat(studio-server): transcode bounded H.264 proxies on demand
Adds the proxy transcoder: a bounded work queue with per-key dedupe, a hard
kill ceiling, TTL'd failure memory so a broken asset is not retried forever,
and pixel/color normalization for browser playback. Writes through a temp name
and renames on success, so a cache entry is never partial.
Carries a TEMP fallow ignoreExports entry: this module lands below its
consumers, so a per-PR audit sees its exports as unused until the preview weld
arrives. The entry is dropped there.
* feat(studio-server): probe media codec facts for proxy decisions
Adds the codec manifest: one ffprobe-backed answer to what codec an asset
uses, whether a browser can decode it, and whether it carries alpha. Migrates
the existing prober to the shared ff-binaries resolver and to async execFile so
a scan pool runs off the event loop. No consumer yet; the preview weld wires it
up later in the stack.
* fix(studio-server): honor injected ffprobe runners
Moves assetResolution.ts from packages/lint into @hyperframes/parsers behind
a ./asset-resolution subpath export, mirroring the ./ff-binaries shape, and
points lint's two importers at it. Pure move: no behavior change. Unblocks
studio-server consuming the same helpers without a dependency cycle (the CLI
already depends on lint, so importing lint from studio-server is not an option).
The cli, engine, and lint packages each carried their own copy of the
ffmpeg/ffprobe lookup, annotated fallow-ignore code-duplication, and the
copies had drifted: the engine copy handled Windows PATHEXT and executed
which/where without a shell but lacked the Homebrew-dirs fallback for
GUI-spawned processes; the cli copy had the opposite. One resolver in
@hyperframes/parsers (the dependency-graph bottom) now carries the union
of both hardenings, and all three packages delegate to it. Every
consumer gets strictly more robust resolution; env-override semantics
per call site are preserved via configuredMustExist.
A composition variable mirrored as --<slug> for a mounted sub-composition
(default or an explicit data-variable-values value) previously overrode any
same-named custom property the document already authored elsewhere (e.g. a
:root theme token), since the mirroring had no "already defined" guard —
unlike the two other emission paths, which already skip re-emitting when the
name collides with an authored definition. Extend that guard to the
sub-composition mount path in both the compiler (htmlBundler.ts) and the
runtime loader (compositionLoader.ts / getVariables.ts), so an authored
definition always wins; render-time --variables overrides still always win.
Field feedback (#hyperframes-cli-feedback ts=1784227832, darwin/x64,
macOS 12, HyperFrames CLI 0.7.60) hit
`dyld: Symbol not found: _kVTCompressionPropertyKey_ReferenceBufferCount`
from VideoToolbox when launching the pinned chrome-headless-shell
mac-152.0.7928.2. The symbol is macOS-13-only, so older hosts abort
the binary at dyld load before any browser process starts.
The reporter recovered by installing an older shell
(`@puppeteer/browsers install chrome-headless-shell@150`) and pointing
`PRODUCER_HEADLESS_SHELL_PATH` at it. Their check/snapshot commands
accepted that older cached shell (they do not force the pinned build),
but the render command requires v152 via `preferManagedChrome: true`
and could not fall back on its own. The generic "Try --docker" hint
didn't name any of the browser-path env vars.
Sibling failure mode to the download-time hint added in #2443 and the
closed-with-invite #2078 (SIGTRAP at launch on macOS arm64), and the
in-flight #2481 (Windows STATUS_STACK_BUFFER_OVERRUN); same
`HYPERFRAMES_BROWSER_PATH` remediation, different trigger + platform.
The match is gated on:
1. Puppeteer launch-failure wrapper text
2. dyld Symbol-not-found signal
3. a macOS-13-only symbol OR the VideoToolbox framework
so unrelated darwin launch failures do not mis-fire the hint. The
symbol name is macOS-version-specific by construction — if a user's
dyld cannot find `_kVTCompressionPropertyKey_ReferenceBufferCount`
their host is <13, no separate `os.release()` gate needed.
- Signed-off-by: Via -
Windows users with the OS temp dir on a small system drive have hit
C: exhaustion mid-render (Slack ts=1784219488 · CLI v0.7.58 · win32
15 GB / 8-core, ~5500 frames). The engine already honors
HYPERFRAMES_EXTRACT_CACHE_DIR for relocation, but the knob was
undocumented and invisible in diagnostics — the reporter had to piece
together a 4-flag compound workaround including EXTRACT_CACHE_DIR=off.
Changes:
- Extract the env-var resolver into a public engine API
(resolveExtractCacheDir, defaultExtractCacheDir,
EXTRACT_CACHE_DIR_DISABLED_ALIASES) with a typed resolution shape
distinguishing "disabled by user" vs "default" vs "env override".
- Add a Frames-cache check to `hyperframes doctor` that reports the
effective directory, its free space, source (env or default), and
fails with a relocation hint when <2 GB free at that mount.
- Add `hyperframes render --frames-cache-dir <path>` as discoverable
CLI sugar for the env var, including the opt-out aliases
(off/none/false/0) and CWD-safe absolute-path resolution.
- Document the flag in docs/packages/cli.mdx with the field-signal
citation, and add a render example row for the Windows workflow.
- Cover both surfaces with unit tests (6 doctor cases + 4 engine
cases including all disabled-alias variants).
Refs Slack #hyperframes-cli-feedback ts=1784219488 (win32 v0.7.58).
Co-authored-by: Via <via-heygen[bot]@users.noreply.github.com>
The runtime picker built raw `#${id}` selectors while its sibling
attribute-selector branches (data-composition-id, data-composition-src,
data-track-index) already CSS.escape'd their values. When a user
composition has an element with a digit-leading id (e.g. `id="0"`),
the picker emits the selector `#0` which is invalid per the CSS spec —
downstream `document.querySelector` throws SyntaxError.
Same failure mode reached the Studio thumbnail: getElementScreenshotClip
called `document.querySelectorAll(selector)` unguarded, so an invalid
selector bubbling out of page.evaluate failed the whole thumbnail and
returned 500 to the browser (broken thumbnail image).
Fixes:
- packages/core/src/runtime/picker.ts — CSS.escape the id, matching the
sibling branches on lines 100/102/104.
- packages/studio-server/src/helpers/screenshotClip.ts — catch
SyntaxError from an invalid selector and return undefined so the
caller falls back to a full-page screenshot, so the user still sees
a thumbnail instead of a broken image.
Regression tests for both.
Reported via #hf-cli-feedback (Slack ts=1784218060, darwin/arm64,
CLI 0.7.60): "digit-leading worker IDs broke Studio thumbnail
querySelectorAll".
— Via
Vance Ingalls