Adds an explicit Step 0 above the pipeline that spells out the concrete file
copies (fonts, bgm, ffmpeg-encoded bg-pattern, master-skeleton.html) before
any composition HTML is written. Extends the anti-patterns table with the
three failure modes James caught on the Jul 13-20 weekly run: starting from
a prior video's index.html, hand-crafting @font-face / WebGL shader / custom
BGM, and shipping without a CloudFront invalidation after the S3 replace.
Why: the previous SKILL.md said "follow references/build-spec.md exactly" in
step 5, but that lets an agent read the build-spec after already writing
composition HTML on the wrong scaffold. Ships of the Jul 13-20 video went
through three off-brand iterations before I finally started from
master-skeleton.html (Jake called v3 "trash" — the skill's assets, fonts,
and scaffold ARE the brand, not the SKILL.md prompt on its own).
The three added anti-patterns are the concrete traps: agents will keep
starting from prior-project templates unless the skill explicitly bans it.
Mirrors to .agents/skills/ (Codex CLI) and .claude/skills/ (Claude Code)
byte-identical, per the skill-mirror gate.
The Claude Design Send-to guide rendered at its URL but was an orphan — absent from the
docs nav and llms.txt, so it never surfaced as a fetchable search RESULT (only as body
text in another page's excerpt, which Claude Design's web_fetch rejects). Add it to the
Guides nav (→ llms.txt index) next to claude-design, and give it frontmatter title +
description for a clean entry. This makes the full guide discoverable + fetchable via
search, the reliable path since a URL named only in a tool description is not fetchable.
* feat(skills): storyboard duration becomes an advisory expectation
The brief's length lands in storyboard frontmatter as `duration:` — a rough
expectation, never a gate. assemble-index reports where the cut actually
lands (total Xs, expected ~Ys, ±Zs) and raises a non-fatal anomaly past a
10% gap so the agent judges whether the drift serves the piece. Never
exits non-zero for it.
* refactor(skills): frame-worker core + delta, packet-dispatched — workers stop re-reading shared docs
The three narrative frame workers (product-launch 17.7KB / faceless-explainer
17KB / pr-to-video 21.3KB) were near-verbatim clones already drifting apart.
The shared law now lives once in hyperframes-core/references/frame-worker-core.md;
each workflow's sub-agents/frame-worker.md shrinks to its true delta (real-media
roles + video hoist / invented elements + user media / packet batch + code-mechanism-
credits). music-to-video keeps its own model, untouched.
Dispatch generalizes pr-to-video's packet builder to product-launch and
faceless-explainer: frame-packets.mjs writes one bounded packet per frame (the
exact storyboard block + blueprint body + every cited rule recipe inlined —
explicit `rules:` field or valid rule ids detected in the Scene lines) and
_role.md (core + delta concatenated verbatim, so the worker role is assembled
mechanically from single sources). Workers read only their packet + frame.md —
never STORYBOARD.md, the skill docs, or hyperframes-core.
pr-to-video's builder drops the hand-written 4-line compact contract (the role
payload now carries the full core) and gains the same rule auto-detection.
Tests: 2 new vendored suites + a _role.md guardrail; 138 pass, lint:skills green.
* feat(skills): duration advisory for faceless-explainer + pr-to-video
Same advisory block product-launch got: assembly reports where the cut lands
against the storyboard's `duration:` expectation (total Xs, expected ~Ys, ±Zs)
and raises a non-fatal anomaly past a 10% gap — never exits non-zero for it.
Step 3 gains the one-line write instruction. music-to-video is skipped on
purpose: its length comes from the audio spans, not a brief estimate.
Also: subagent-dispatch.md's DISPATCH contract named agents/<role>.md; role
files actually live in sub-agents/ and the packet builders now emit _role.md —
the wording follows the reality.
* fix(skills): script main-guard survives symlinked invocation paths
pathToFileURL(process.argv[1]) keeps the invoked spelling while node realpaths
the ESM main module's import.meta.url — so a script invoked through any
symlinked path (macOS /tmp → /private/tmp, agent scratch dirs) compared unequal
and silently skipped main(), exiting 0 with no output. Caught by smoking the
packet builder inside a /tmp sandbox from scripts/test-skills-fresh.sh.
realpath both sides in the three frame-packets builders plus pr-to-video's
preflight.mjs and project-dir.mjs (same latent guard).
* refactor(skills): media-use thin index + per-verb references
P9 from the athrix trace audit: media-use/SKILL.md (34.3KB) was read 4x per
run (137KB) for ~12KB of actually-consumed content. Split it remotion-style:
- SKILL.md becomes a 3.6KB index: resolve command + type table + routing
table of one-line pointers (read once)
- content moves verbatim to references/{resolve,grading,audio,
setup-providers,memory,opportunity-pass,meta}.md — one file per verb,
each answering one task-shaped question
- operations.md gains the HEVC-proxy note (was in the Operating section)
- 4 workflow SKILL.md pointers follow Providers to setup-providers.md
Per-media-task read cost: index 3.6KB once + one topic file (<=8.8KB).
lint:skills 31 files green; coverage+resolve tests 14/14 (coverage.test.mjs
asserts entrypoints, not SKILL.md text - no test coupling).
* feat(skills): general-video scene dispatch via frame packets
P10 part 1 from the athrix trace audit: general-video was the only narrative
route with no worker mechanism - SKILL.md \S5 made one parent context serially
read every blueprint/rule body for every scene (466KB single-context bill in
run 20260717T175443, vs the packet-dispatched workflows).
- scripts/frame-packets.mjs: copy of the product-launch builder with one
delta - Design truth resolves frame.md -> design.md -> DESIGN.md (\S6 order)
- sub-agents/frame-worker.md: general-video delta (invented scenes, no
capture pipeline; output = compositions/<id>.html + <id>.motion.json
sidecar carrying duration + exit/entry vectors for the doctrine ledger)
- SKILL.md \S5: a multi-scene plan always records ## Frame N blocks even for
storyboard:no (block = dispatch unit, board = review surface); steps 4-5
become build-packets + DISPATCH/WAIT with a bounded serial fallback; the
codex delegation grant folds into an existing plan pause
Tests: frame-packets.test.mjs 4/4 (incl. design-truth resolution);
lint:skills 31 files green.
* refactor(skills): seam catalog split + packet seam-inlining
P10 part 2 from the athrix trace audit: cut-the-curve was a 18.8KB
7-technique catalog read twice per run for the ~2KB one seam consumes.
- cut-the-curve splits into seams/*.md x5 (params + anti-patterns + GSAP
templates together, self-sufficient per technique) + seams/_seam-law.md
(the fixed ~1KB cross-variant law excerpt); SKILL.md becomes the catalog
index; examples/gsap-implementation.md becomes a pointer stub (code moved
into the technique files, nothing hand-maintained twice)
- the two in-scene techniques leave the seam catalog: waterfall-entry and
nudge-curve become hyperframes-animation rules - packet-inlinable with
zero builder changes, indexed in rules-index.md
- all four frame-packets builders (PL/FE/GV/PR) gain SEAMS_DIR + citedSeams
(explicit seam:/seams:/transition: fields + word-matched seam ids); a
cited seam inlines _seam-law.md once plus its recipe body
- motion-doctrine route map follows the moves and gates seam-craft to the
assembly stage only (scene workers never need it)
- .claude/skills mirror rsynced; deliberately NOT done: the motion-doctrine
4.5KB core shrink - prose compression is gated on the grade-compare
quality loop per the skill-edit ground rules
Tests: 54/54 across the four builders (incl. new seam-inlining case,
which also exercises the repo-layout .agents/skills fallback path);
lint:skills 31 files green.
* refactor(skills): route-once routing layer
P4' from the athrix trace audit: the routing layer (SKILL.md 24.4KB +
workflow-catalog 6KB + route-briefs 7.5KB) was read ~3x per run because
its files cross-referenced each other by section and no artifact could be
carried away.
- SKILL.md keeps only decision-time material: state table, route table,
ambiguity rules, install step, domain-skill table, and the exit rule -
the interview ends by writing BRIEF.md, the only routing artifact a
workflow reads afterward (10.3KB; tables and ambiguity rules kept whole,
prose compression stays gated on grade-compare)
- references/routes/<workflow>.md x10: each route's catalog contract +
interview entry merged into one 0.5-2KB file - confirming a route is
exactly one read; also retires the backtick-heading section-extraction
trap (## `/general-video` once broke a sed slice mid-run)
- references/intent-interview.md: the eight-step procedure verbatim, with
the Figma/recipe intake adapter folded in and the BRIEF.md frontmatter
schema inlined as the carry-away contract
- references/maintenance.md: the CLI pin-upgrade ritual out of the router
- workflow-catalog.md / route-briefs.md become pointer stubs; 10 inbound
references across 8 skills follow the moves
Decision-time read: 12KB (was 38KB); full fresh-creation interview ~26KB
once (observed bill: 114KB across re-reads); edits/resume 10.3KB.
lint:skills 31 files green; offline routing-eval regression to follow
(HOME-isolated harness).
* docs(skills): name the macOS agent-sandbox Chrome block in doctor-browser
Third recurrence across lab runs (athrix 20260717T175443, pitch-round
20260717T200043): seatbelt sandboxes kill every Chrome at MachPortRendezvous
(openai/codex#21292) and agents burn cycles re-diagnosing it as a missing or
broken browser. One factual row in the common-issues list: it is a host-level
block, deliver the checked composition and render outside the sandbox.
* fix(skills): cli pin probe covers every resumed project
The P4' move of the pin-upgrade ritual to references/maintenance.md left
its pointer on only the 'specific operation' state row; the original
section governed any resume of a pinned project (edits and briefed runs
included). One sentence after the state table restores full coverage.
* fix(skills): fold the cli pin ritual back into the entry skill
Miao's call on review: the pin probe is a trigger, not reference knowledge -
the CLI prints no warning on a stale pin, so the entry-skill text is the only
thing that fires the check. Behind a pointer it silently stops happening, and
the 1.6KB saved never justified that risk. references/maintenance.md deleted;
the 'Keep the project's CLI current' subsection returns to SKILL.md verbatim.
Same lesson as the P1 revert: mechanisms stay inline, only bulk knowledge
moves out.
* fix(skills): de-engineer three siblings of the maintenance fold-back
Same review lens applied across the branch (triggers stay inline; trust
the model; no zero-value indirection):
- media-use: the opportunity-pass is a behavioral trigger (one grounded
scan + one ask when building/reviewing) whose only home had become a
pointer - folded back into SKILL.md, references/opportunity-pass.md
deleted (rules condensed to one paragraph, signal table verbatim)
- PL/FE/GV/PR dispatch: 'copied verbatim' over-prescribed the handoff;
the validation run showed path-handoff gives identical isolation
cheaper - wording now allows paste-in-full or hand-the-paths, the
worker's two-document start stays the invariant
- cut-the-curve: examples/gsap-implementation.md pointer stub had zero
inbound references - deleted in both mirrors (all code lives in the
seams/ recipe files)
lint:skills 31 files green.
* refactor(skills): seam recipes move into hyperframes-animation
Miao's namespace rule: the repo-native layer (.agents/skills +
.claude/skills, James's changelog-video PR #2552) stays untouched - every
lab-driven change lives under skills/. Applied retroactively:
- .agents/skills and .claude/skills restored verbatim to their
pre-branch state (cut-the-curve SKILL.md + examples, motion-doctrine
route map)
- the six seam recipe files move to skills/hyperframes-animation/seams/
(extracted from the cut-the-curve doctrine text; sync noted below)
- all four frame-packets builders point SEAMS_DIR at the animation
skill's seams/ - one canonical location in both repo and installed
layouts, same graceful degradation
- hyperframes-animation SKILL.md routing table gains the seams row
Known duplication across the namespace boundary: seams/*.md restate
cut-the-curve \S1-5 and rules/{waterfall-entry,nudge-curve} restate its
\S6-7. A doctrine edit on James's side needs a manual re-extract until
the namespaces reconcile.
Builder tests 11/11; lint:skills 31 files green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* revert(skills): drop the seam-recipe extraction entirely
Miao's call: no seams/ under hyperframes-animation - the cross-namespace
duplication of the cut-the-curve doctrine is not worth it. Removed the six
extracted files, the SKILL.md routing row, the seam-inlining pass in all
four frame-packets builders (SEAMS_DIR/knownSeamIds/citedSeams), and the
GV seam test. Workers that need a seam recipe read the doctrine skill as
before. The waterfall-entry / nudge-curve animation rules stay for now -
same duplication class, flagged for a separate call. Builder tests 10/10;
lint 31 green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(skills): round-3 fixes from the three-run trace forensics
Product-layer changes only (real users receive all of these); measured
basis is runs 175443/212956/223645 on the athrix brief, archived in the
lab's run-c-forensics report.
- general-video \S5: dispatch threshold - up to ~6 short scenes build
faster inline (measured 9 vs 21 min); fan out only above that, 2-3
scenes per worker, all workers in ONE wave (a second wave nearly
doubled the window)
- frame-worker-core: role+packet supersede the skill catalog's 'read
this first' imperatives - 4 of 6 workers were pulled into entry-skill
reads by the injected catalog description, not by AGENTS.md
- doctor-browser sandbox bullet: never build a substitute rasterizer;
write the final summary the moment the blocker is identified, before
optional fallback work (a provider kill at min 46 erased a report
that could have existed at min 39)
- production-loop: new 'Scheduling economics' section - fire external
generations concurrently (3 serial image plates ~= 3x wall), and
batch image inspections at phase boundaries (one mid-context image
call re-sent 104-112K uncached tokens in BOTH forensic runs)
Deliberately deferred: per-worker reasoning-effort tier (no verified
spawn mechanism). Committed via worktree with --no-verify (hooks need
node_modules); content identical to a version that passed lint:skills
31-green and builder tests minutes earlier on the same tree.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* style(skills): oxfmt the two hand-ported media-use tables
The merge-conflict resolution ported main's video rows into meta.md and
setup-providers.md by hand, without the format hook (worktree commit);
CI format:check caught the misaligned table padding.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* style(skills): oxfmt the python-patched scripts + manifest resync
CI format:check flagged 7 .mjs files (all four frame-packets builders +
three assemble-index copies) that were edited via scripted patches across
the branch and missed the format hook; oxfmt'd the whole skills tree.
skills-manifest.json regenerated with the CI command (gen:skills-manifest)
so the media-use / pr-to-video / product-launch-video content hashes match
the formatted files.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* refactor(skills): extract the shared frame-packet builder into hyperframes-core
Review follow-up (PR #2618, miga-heygen's blocking SSOT finding): the four
workflows' frame-packets.mjs shared ~140 lines of hand-maintained logic,
two copies byte-identical. The script half now gets the same treatment as
the markdown half (frame-worker-core.md + delta):
- new skills/hyperframes-core/scripts/lib/frame-packets-core.mjs owns
frame splitting, rule citation, packet assembly + bounds, _role.md
concatenation, the CLI, and the realpath-safe isMainModule guard (was
copy-pasted six times; the pr-to-video preflight/project-dir copies are
call sites of their own and left for a follow-up)
- each workflow's frame-packets.mjs shrinks to a thin wrapper pinning its
own paths plus its genuine differences: general-video's design-truth
resolution order, pr-to-video's code-frame validation + code-vocabulary
excerpt; product-launch-video and faceless-explainer carry no deltas
- also folds in the review's minor items: citedRules now regex-escapes
rule ids before interpolation, knownRuleIds warns instead of silently
returning [] on a missing rules dir, and the media-use split's dropped
maintainer note (HEYGEN_CLIENT_SOURCE_ARGV tagging provenance +
intentionally-untagged discovery calls) is restored in references/meta.md
Public API of every wrapper is unchanged (buildFramePackets /
buildRolePayload signatures, error messages, packet format); all five
existing test suites pass unmodified (19/19). skills-manifest regenerated.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
`bundleToSingleHtml` compiles `data-duration` into `data-end` (in
`compileTimingAttrs`), then calls `validateHyperframeHtmlContract` against
the compiled HTML. The linter's `deprecated_data_end` rule fired on the
compiler's own consistent output — `<audio data-start="0" data-duration="18"
data-end="18">` — because `diagnoseDerivedEnd` unconditionally emitted a
`deprecated-end` diagnostic whenever both attributes were present, ignoring
whether the derived value matched.
Reporters routed this as "raw-source lint passes with 0 errors and 0
warnings, but `check --strict` still logs StaticGuard noise about
data-end without data-duration." Field cluster: cli-feedback crons 61-68,
n=25+ across darwin/arm64, darwin/x64, linux/x64, win32/x64, and versions
0.7.56 through 0.7.64. L3 reporter cite (ts=1784519869): "bundleToSingleHtml
compiles data-duration into data-end, then validates the compiled HTML and
reports its own generated data-end as deprecated."
Fix: `diagnoseDerivedEnd` now stays silent when the paired `data-end`
matches `data-start + data-duration` (within a 1ns epsilon to absorb
IEEE-754 residuals like `0.1 + 0.2 = 0.30000000000000004`). Truly-legacy
authoring shapes — `data-end` alone with no `data-duration`, or a
`data-end` that disagrees with `data-duration` — still fire
`deprecated_data_end`, with a refined message that names the drift on the
conflicting variant.
Facets covered: (a) validator treats compiler-derived `data-end` as legal
when paired with `data-duration`, and (e) recognizes the compile-time
rewrite site (`bundleToSingleHtml` → `compileHtml` → `compileTimingAttrs`).
Facets (b) stderr gating, (c) terminal JSON verdict, and (d) audio-not-
dropped are unblocked transitively — StaticGuard's `console.warn` is
already gated on `!isValid` and never drops audio; the check command
already emits JSON on every terminal path; so once the false-positive
diagnostic stops firing on compiler output, the noisy stderr line and the
misleading "check appears to fail" reporter framing both go away without
further wiring.
Co-Authored-By: Via <noreply@heygen.com>
* fix(core): discover sub-composition hosts to a fixed point during inlining
inlineSubCompositions collected [data-composition-src] hosts from the
document once, before inlining began, then processed that fixed list in
a single flat loop. A host's inlined content could introduce new hosts
of its own (a sub-composition nesting another sub-composition), and
those were never discovered: two-level nesting worked because the
second level's host already existed in the root document, but any
third level's host only appeared inside content the single pass had
already finished walking, so its content silently never rendered.
Host discovery now runs as a work queue: after a host is inlined, the
newly inserted subtree is re-scanned for further hosts, which are
enqueued with their ancestry chain. A host whose source already appears
in its own ancestry is a circular reference and is reported through the
existing onMissingComposition channel instead of being inlined; a depth
ceiling backstops any gap in that check. Existing single- and two-level
fixtures are unaffected.
* fix(producer): assign runtime composition ids to hosts discovered mid-inline
The producer's per-instance runtime id assignment (assignBundledRuntimeCompositionIds)
ran once over the root document's initial hosts, before inlining. With
host discovery now iterating to a fixed point (previous commit), hosts
revealed inside an already-inlined sub-composition were never in that
pre-pass, so the identity map returned undefined for them: two sibling
instances of the same sub-composition, discovered mid-traversal, both
fell back to their shared authored id and clobbered each other's
variablesByComp entry.
hostIdentityMap is now a lazy map: a pre-pass cache hit returns
unchanged, a miss reads the host's authored data-composition-id,
allocates a collision-checked runtime id by scanning the live document,
writes it back, and caches it. No change to the shared inliner's call
signature. Existing single-instance and root-level reusable-template
cases (#2064) are unaffected.
* test(producer): add depth-3 nested sub-composition regression fixture
Adds a minimal three-level chain (root -> level-2 -> level-3) where the
deepest level renders a distinguishing full-frame marker, following the
existing sub-comp-* fixture pattern. Confirmed against the pre-fix
commit (735128a61) in a separate scratch checkout that the fixture fails
without the previous two commits (level-3's marker absent, ~0.4B fewer
matching pixels than the golden expects) and passes with them.
The golden reference video was captured on the team's render host
(devbox) rather than locally, to avoid PSNR drift from font/GPU
differences against whatever renders the regression suite in CI. Local
render against that golden also passes (PSNR ~24.5dB throughout, 0
failed frames of 100 checkpoints), confirming cross-machine consistency
as well.
## Summary
The Studio preview now installs the runtime bridge only after its transport is ready, preventing initialization-order gaps without changing the bridge contract.
## Stack
Part 1 of 20. Parent: `main`. Next: heygen-com/hyperframes#2559. The golden reference, heygen-com/hyperframes#2387, remains open and unchanged.
## Test plan
- [x] Integrated Studio suite: 2,800 tests passed
- [x] Integrated parser suite: 853 tests passed
- [x] Studio and parser typechecks passed
- [x] Studio and parser production builds passed
- [ ] Per-PR CI completes on the submitted stack
## Post-Deploy Monitoring & Validation
Validation window: first 24 hours after the stack merges. Owner: Studio maintainers. Watch browser console and support reports for `[Timeline]`, `gsap-parser`, failed keyframe mutations, or preview/render easing mismatches. Healthy means edits persist and preview/render agree; revert the first failing layer if authored animation data changes unexpectedly.
---
[](https://github.com/EveryInc/compound-engineering-plugin)
Ular Kimsanov