## What
Adds `createHttpAdapter` — a browser-native `PersistAdapter` that reads and writes composition files through the Studio dev-server's `/api/projects/:id/files/...` endpoints using the Fetch API. Exported as a subpath: `@hyperframes/sdk/adapters/http`.
## Why
The SDK's `PersistAdapter` interface previously had filesystem (`fs`) and in-memory (`memory`) implementations, both Node-only. Studio runs in the browser and needs to persist compositions back to the dev server. This adapter is the browser-compatible plug that lets `openComposition` work in a Studio context without Node I/O.
## How
- `HttpAdapter` implements `PersistAdapter`: `read` → GET, `write` → PUT with per-path queue to serialize concurrent writes to the same file (at-most-once in-flight per path)
- `flush()` waits for all in-flight queues to drain
- `listVersions` / `loadFrom` proxy the server's version history endpoints
- `on('persist:error')` fires on network/non-2xx failures without throwing; callers can surface errors non-fatally
- Retry is caller's responsibility; the adapter does not retry
## Test plan
- `http.test.ts`: read/write round-trip with MSW, concurrent write serialization, persist:error event on 503, flush drains queue
- Contract suite (`persistAdapter.contract.test.ts`) passes for the http adapter against a mock server
* feat(sdk): scaffold @hyperframes/sdk — engine layer (model, RFC 6902 patches, mutate, apply-patches)
* fix(sdk): make engine-layer PR self-contained — trim index.ts, guard indexed access
- index.ts no longer exports document/session/history/persist-queue (those
modules land in the next stacked PR); branch now typechecks standalone
- setOwnText: optional-chain children[i] access (TS2532 under
noUncheckedIndexedAccess)
- fallow suppressions for buildPatchEvent + adapters/types.ts — consumers
arrive in #1325
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(sdk): fail loudly on Phase 3b ops; add sdk to root build pipeline
- applyOp throws UnsupportedOpError (code E_UNSUPPORTED_OP) for the 9
parser-backed ops instead of silently no-opping — callers must never
believe an animation edit succeeded when nothing was mutated
- validateOp returns false for Phase 3b ops so can() feature-detects
- root package.json build filter now includes @hyperframes/sdk (package is
dist-only; top-level build previously produced no SDK artifacts).
publish.yml intentionally NOT updated — sdk stays unpublished until
Phase 3 completes.
Adversarial-review findings F3 + F4.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(sdk): cross-realm origin sentinel, dual width/height channel, contract docs
Round-2 review (Rames/Miguel) on the engine layer:
- ORIGIN_APPLY_PATCHES: unique symbol → namespaced string
('@hyperframes/sdk:applyPatches'). Symbols are realm-local — they don't
survive postMessage/structured-clone, which T3 embedded hosts may forward
patch events across. Namespaced string keeps collision risk negligible.
- setCompositionMetadata width/height: runtime treats data-width/data-height
as a forced override of inline style (init.ts applyCompositionSizing).
Style is always written; the data-* attr is updated when already present
so the edit isn't clobbered on load. Absent attrs stay absent — inverses
stay exact. Mirrored in the patch applier; 3 new tests.
- JsonPatchOp documented as the emit-only RFC 6902 subset
(add/remove/replace); applier header notes move/copy/test are ignored.
- SdkDocument.html documented as a build-time snapshot (serialize() is the
live state).
- patches.ts path-grammar comment fixed: timing/{start|end|trackIndex}.
NOT changed (with reasons, see PR reply): moveElement left/top matches
Studio's own inline-style commit convention (sourcePatcher); package version
follows the repo-wide single-version policy.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(sdk): moveElement writes data-x/data-y, not left/top CSS
HF elements use data-x/data-y for positioning (read by htmlParser.ts,
emitted by hyperframes generator). CSS left/top is not the runtime convention.
Adds inverse round-trip test for prior position restore.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* chore: update bun.lock after sdk package registration
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Miguel Ángel