* feat(plugins): stream events and bytes between plugins and the app
Plugins can declare a subscription with defineSubscription, handle it with
server.handle(contract, (input, { push, signal })), and listen from a surface
with useSubscription or client.subscribe. A top-level Uint8Array in an event,
an RPC output, or an RPC input crosses the wire as a binary frame (opcodes
0x20-0x2f) without JSON or base64; a nested one fails validation on the sender.
Each subscriber runs its own handler, owned by the session that subscribed,
so release, disconnect, plugin stop and reload need no plugin code. The
runtime buffers pushes until the subscribe response has gone out, so a client
never sees an event for a subscription it does not know yet.
Gated on server_info.features.pluginSubscriptions; binary outputs reach only
clients that advertise plugin_binary_payloads.
* fix(plugins): close subscription gaps found in review
- Losing daemon.manage now releases the session's plugin subscriptions;
binary events bypass the outbound permission check, so streams would
otherwise outlive the revocation.
- A subscribe that times out sends unsubscribe, since the plugin may
still start the handler after the daemon gave up.
- The byte limit leaves room for the largest frame header and routing,
and lives in assertPluginWireValue so events, outputs and inputs share it.
- A release right after the host accepted keeps `ready` resolved, so a
handler that returns at once reports closed rather than an error.
- Session trace logging tolerates loggers without isLevelEnabled.
* fix(plugins): withhold binary plugin results after plugin access is revoked
A binary RPC output or event skipped the outbound permission check its
JSON form passes, so an RPC in flight when daemon.manage was revoked still
delivered its bytes. Each frame now checks the permission of the JSON
message it stands in for.
* test(plugins): cover subscriptions in a real browser instead of JSDOM
The app subscription tests mounted hooks in JSDOM, which docs/testing.md
rules out. The adapter and contract behavior is now a plain unit test,
and a Playwright spec drives the diff-watch and media-stream examples:
JSON events following file changes, streamed bytes, and an upload.
* test(plugins): add the plain subscription unit test and the browser spec
* fix(plugins): apply subscription schema transforms once
Both ends parsed each subscription value, and the sender sent its parse
output, so the receiver parsed a schema's output as fresh input. An event
schema like z.string().transform((s) => s.length) closed the stream as
invalid. The sender now validates and sends the value as given; the
receiver's parse produces what the handler or callback sees.
* fix(plugins): parse a subscription's input once in the plugin process
server.handle wrapped subscription handlers in a second input parse, so a
transforming input schema rejected its own parsed output before the
handler ran.
Restore configured terminal history on reconnect, retaining 10,000 rows plus the screen. Serialize the worker-owned xterm buffer directly to ANSI and forward negotiated bounded replay chunks while preserving ANSI-era clients and per-viewer live ordering.
Preserve captured geometry through replay, bound pressure recovery to 500 rows, and keep the omitted visible-history default at 200. Remove the full cell-grid copy and obsolete JSON rendering.
All 21 CI checks pass. Real browser, native Debug emulator/simulator and Linux Electron coverage and platform limits are documented in the PR. The Android Debug invalid native delegate dispatch also reproduces on upstream main; its cause and any change in frequency remain unproven.
Credit Manav Dhindsa (DrakenKor), #6139 and #6148, and Lennart Schoch, #6743, for prior ANSI replay and retention work informing this change.
Closes#6137.
Closes#6147.
* feat(hosts): connect to saved hosts through a daemon
* fix(hosts): validate safe targets and verify encrypted relay routes
* test(hosts): include relay coverage in existing CI contracts
* fix(cli): preserve validated addresses in daemon command hints
* fix(hosts): share daemon links across isolated routed sessions
Multiplex logical sessions over the monitored daemon connection and wrap original binary bytes in routing headers. Admit channels under their authenticated parent and current grants; preserve scoped delivery and physical send completion.
* fix(hosts): bound encrypted overload and initial acquisition
Check encrypted wire capacity before the async channel converts a resource limit into a physical connection error. Bound initial routed acquisition with the existing client timeout, then enable reconnect after admission.
* fix(hosts): keep compact row actions clear of host labels
Give compact connected-host rows separate text and action widths so long names and producer labels cannot compete with primary controls.
* refactor(hosts): remove management settings UI from phase one
Keep connected-host management in the CLI and shared SDK while preserving app saved connections and plugin access.
* test(hosts): control physical write backpressure across platforms
Hold real TCP writes until assertions finish instead of assuming a paused receiver exhausts every platform receive buffer. Preserve physical send settlement, byte identity, capacity and sibling checks.
* refactor(hosts): use the ordinary client contract over channel transports
Keep queuing, permission codes and reconnection independent of transport selection. Track submitted request outcomes generically while retaining connection error codes and structured causes.
* test(e2e): keep transient developer toasts from stalling checks
Concurrent locator handlers can wait for a dismiss button another handler removed. Dismiss existing toast DOM at document lifetime, including its open shadow root, without intercepting app actions.
* Create, prompt, and monitor agents across connected hosts (#7507)
* feat(hosts): delegate agents across connected hosts
Resolve MCP host operations through in-process commands for self and the existing routed client transport for other destinations. Keep ordinary parent labels, app sessions and idle finish notifications.
* test(app): normalize subagent fixtures through snapshots
* docs(protocol): clarify same-host parent labels
* fix(hosts): resolve subagents through destination sessions
A child address identifies its destination regardless of the connection used. Reuse the existing host candidate selection for discovered routes and direct connections, and keep navigation and row actions independent of the parent transport.
* fix(hosts): keep routed destinations distinct during discovery
A routed candidate names only the origin daemon. Match it within the named destination profile so two destinations discovered through the same origin retain separate identities and connections, including existing saved routes.
* feat(hosts): prompt and query agents on selected hosts
Extend the existing MCP host operation boundary with prompt, status, activity and list operations. Local calls retain their handlers and notification owner; selected destinations use ordinary client RPCs and the existing idle finish wait.
* test(e2e): preserve toast coverage with CSS hiding
* docs(hosts): translate connected host references
Mohamed Boudra