- Add Agent connection accounting and HTTP/socket compatibility surfaces
- Support dynamic Buffer at and slice access
- Pin behavior with differential corpus coverage
- The ratified rename rider (world-unification §7 lane 5): "DOM" collided with the browser DOM and, post-lane-1, the structure is no longer a document tree. Comments and doc prose now say "the checked-dynamic tree" for the noun and "dyn" adjectivally; runtime symbol names (scr_dyn_*), the error.domClone libCall, and the real web DOMException family are unchanged.
- The few user-facing strings carrying the nickname move with it (the structuredClone cyclic message, the dc subscriber/publish fences, two emitter ICE texts); diagnostics snapshots regenerated (96 pass). One private compiler constant (DOM_PROTO_METHOD_NAMES -> DYN_PROTO_METHOD_NAMES) rides along.
- Mechanical sweep, 142 files, comments/prose only — no behavior change.
- Keyed reads and writes, dynCall, and method dispatch on engine-held values route through the engine, which runs its own prototypes JS-exact
- One generic host shim carries boxed dyn functions into engine calls over the uniform thunk signature
- Nullish coalescing and optional chains unfence for every dyn value, engine-held or not
- Mixed island-vs-DOM deepStrictEqual comparisons loud-fence instead of minting a fabricated failure
- The formatter driver's support slice runs past its flatMap wall
- scr_dyn_from_jsval scalar-normalizes at wrap time (engine numbers/strings/booleans/null/undefined become native DOM kinds through the strict exits), so JSVAL nodes only ever hold engine objects/arrays/functions; the ops install like the promise-release hook, keeping the always-linked DOM core island-free
- typeof, truthiness, String(), and === route to the engine per use (scr_dyn_jsval_ops), the narrowing helpers (scr_dyn_isl_typeof_is/is_array/is_error) answer the engine's truth, and scr_jsval_from_dyn unwraps the SAME cell back — the identity round trip, nested members embedding by reference
- every un-armed DOM walk throws the loud "on an island value held in 'unknown' is not supported yet" ladder: keyed writes, method dispatch, calls, callback checks, 'in', spread, Object.keys/values/entries/hasOwn/assign/defineProperties, JSON.stringify/%j, structuredClone (options included), util.inspect (engine typeof named), deepStrictEqual (engine-identical answers true honestly), and dc subscription — never a silent wrong answer, never a false "is not a function"/"not iterable" claim
- assert's SameValue and strict_eq compare the ENGINE values (two wraps of one value are equal; a DOM copy is a different object, Node's answer too), and failure reports render wrapped operands as the depth-elided [island value] placeholder (the handle stance)
- ServerResponse/IncomingMessage/Socket members that fenced on checked-dynamic values now dispatch: flushHeaders, getHeaders, setTimeout, cork/uncork with a real writableCorked counter and coalescing flush, writeHead's raw-array form, write/end encodings and deferred callbacks, req.pause/resume with buffered drain, destroyed/readable/bytesWritten/res.req reads, setNoDelay, destroySoon, end(cb), and dyn Buffer at()/slice()
- new http.Agent/https.Agent lowers to a checked-dynamic handle: literal option parsing, getName, destroy, sockets/requests/freeSockets snapshots, settable defaultPort, and REAL maxSockets accounting (over-limit requests defer their dial and queue); keepAlive: true throws the named pooling fence
- the request path threads the agent (http.requestAgent/https.requestAgent rows, both backends); dyn keys now stringify for indexing and the in-operator over dyn receivers (dyn.hasKey)
- differential fixtures 2573-2577 pin both families against Node
Chris Tate