Move exact user-patch watching into app boot and audit activation explicitly.
Wait for CLI fallback HMR and preset subtrees. Join the first fiber-disposal
result in the directory chooser and browser package runner. Keep async
update errors observable without restoring generic Loader rollback.
Restore the current workspace-link and Schemastery manifests and their gate.
Preserve unconditional patch-input cloning, awaited Include initialization,
and durable teardown writes. Update diagnostics, snapshots, bilingual docs,
and the exhaustive vendor divergence ledger.
Validation: focused Loader, watcher, preset, inventory, and cleanup tests;
100% watcher coverage; 32 Web preset cases; real CLI webhook model session;
SDK smokes; 13 headless expected cases; 3 recorded-session replays; build,
typecheck, lint contracts, and all 34 doc-sync gates.
A full Node 24/Python 3.12 Vitest run had 21806 passes and two failures:
a baseline-reproduced experimental CSS import failure and a Python probe
timeout that passed alone. The default Node 26/Python 3.9 run additionally
exposed unsupported Python and FileHandle-GC host failures.
The package exported six functions, four of them shaped by one SDK's
transport each: a dispatcher factory, a `node:http` agent factory, a
proxy-URL lookup, and a policy accessor. Review asked whether the call
sites could converge instead of the package growing an export per SDK.
They could, and each removal took a whole shape with it:
- The OTLP exporter moves to the SDK's `fetch` delegate, retiring
`createNodeHttpAgent`. Its Node-version floor goes too: `proxyEnv` on
an `http.Agent` needs 22.21 or 24.5, inside the engines range, so
telemetry was direct on 22.19, 22.20, and 24.0-24.4. The cost is
`compression`, a Node-transport option; the plugin now refuses it,
`keepAlive`, and `httpAgentOptions` at load instead of ignoring them.
- `web-fetch-http` builds its own address-pinning agent under an
annotated `proxy-exempt:` exemption, retiring `createDispatcher`.
Pinning is per-request state a process-wide dispatcher cannot hold.
- E2B reads `route.proxy`, retiring `proxyUrlFor`.
What remains is `installProxyFromEnvironment`, `proxyRouteFor`,
`proxyEnvironmentForChild`, and `clearedProxyEnv` — one per way a caller
can need the policy. Installation absorbs resolution and diagnostic
reporting, which no caller needed apart.
`proxyRouteFor` also closes a defect the old accessor made expressible:
`web-fetch-http` read the policy to decide whether to pin, then read it
again to build a transport, so an unmount between the two returned a
direct, unpinned agent for a URL the first read had cleared as proxied.
A route carries the answer and the transport that answer assumed.
Every egress spec now installs through `installProxyFromEnvironment`, so
no test asserts a policy object a real launch could not produce.
Node's built-in fetch ignores HTTP_PROXY, so every harness request connected
directly regardless of what the user exported. Resolve one policy from the
launch environment and install it as undici's global dispatcher, then wire the
four surfaces a global dispatcher cannot reach: web_fetch's pinned transport,
the OTLP exporter's node:http agent, the E2B SDK's own proxy option, and the
environment a child process or worker thread is given.
Each outbound call site carries an egress test that drives its real code path
through a fake proxy; that measurement is what found the OTLP and E2B gaps.
imccyu