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DEV-2107: show a remote host's hub in the current tab - #10
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ZmeiGorynych merged 9 commits intoOct 20, 2026
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ZmeiGorynych merged 9 commits into
ZmeiGorynych merged 9 commits into
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…nt tab Unit, process, e2e and opt-in real-SSH tests for opening a remote host's hub through the home page: browser protocol 10 messages and hub error codes, the frozen print-code line and page fragments, per-host port assignment, the install-only coordinator queue, the print-code opener and ssh -W forwards, the any-port Host/Origin rule, wtd ui <host> and --print-code, tunnel listeners, the Hubs menu and status line. The fake SSH learns -W forwarding; hub budgets are shortened in process tests via WTD_HUB_OPEN_MS, WTD_HUB_PROBE_MS and WTD_HUB_INSTALL_MS.
The home hub opens a remote host's own hub on request: it runs `wtd ui --print-code` there over the host's control master, binds the host's stable loopback port (assigned once into config.json) and relays each connection with `ssh -W`, probes it, and hands the page a URL to navigate to. The page gains a Hubs menu and an opening status line with the Tailscale login link, "Reinstall on <host>" and errors; a remote page routes back through home. `wtd ui <host>` and `wtd ui --print-code` are the CLI ends. The hub's Host/Origin rule accepts any loopback port with a same-origin Origin. Browser protocol 10. Also fixes tests the pr-tests stage left behind: the --version expectations still named browser protocol 9, the oversized print-code test raced the immediate kill, and a few toThrow assertions made more than one throwing call.
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Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 63 files. (1 skipped: 1… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title clearly and concisely describes the primary change: opening a remote host's hub in the current browser tab. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
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Write docstrings for the functions missing them to satisfy the coverage threshold.
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Inline comments:
Review comments at @src/hub/router/index.ts:
- Around line 173-188: Update openSteps to check ended() after readConfig() and
before printCode(), then check it again before assigning a port. Return
failed('cancelled') at either check so a cancelled opening does not start SSH or
call assignPort.
Review comments at @src/web/client/connection.ts:
- Around line 161-168: Update hubOperation to handle rejected pending replies by
sending a synthetic error with the same req to the opening listeners, including
the hub host and connection error details when available. Keep resolved replies,
including ok: false, unchanged.
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📒 Files selected for processing: 69
README.mdarchitecture/hub.arc42.mdopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/.openspec.yamlopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/design.mdopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/proposal.mdopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/cli/spec.mdopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/hub/spec.mdopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/protocol/spec.mdopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/web/spec.mdopenspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/tasks.mdsrc/cli/run.test.tssrc/cli/run.tssrc/daemon/server/bind.test.tssrc/hub/config/config.test.tssrc/hub/config/config.tssrc/hub/config/editor.test.tssrc/hub/config/editor.tssrc/hub/config/index.tssrc/hub/links/hub.test.tssrc/hub/links/hub.tssrc/hub/links/index.tssrc/hub/main/index.tssrc/hub/router/coordinator.test.tssrc/hub/router/coordinator.tssrc/hub/router/index.tssrc/hub/router/session.test.tssrc/hub/router/session.tssrc/hub/server/index.tssrc/hub/server/listener.tssrc/hub/server/tunnels.tssrc/platform/dialer/dialer.test.tssrc/platform/dialer/index.tssrc/protocol/constants.test.tssrc/protocol/constants.tssrc/protocol/frozen.golden.jsonsrc/protocol/hub.test.tssrc/protocol/hub.tssrc/protocol/index.tssrc/protocol/json.tssrc/protocol/messages.test.tssrc/protocol/messages.tssrc/protocol/test-samples.tssrc/protocol/values.tssrc/protocol/wire.golden.jsonsrc/protocol/wire.golden.test.tssrc/web/client/connection.tssrc/web/client/index.tssrc/web/client/page.test.tssrc/web/client/page.tssrc/web/main/index.tssrc/web/main/styles.csssrc/web/ui/app.tsxsrc/web/ui/hubs.test.tssrc/web/ui/hubs.tstest/architecture/dependencies.tstest/e2e/contract.tstest/e2e/fixture.tstest/e2e/hosts.spec.tstest/e2e/hubs.spec.tstest/integration/ssh-localhost.test.tstest/process/cli.test.tstest/process/fake-ssh.test.tstest/process/hub-cli.test.tstest/process/hub-router.test.tstest/process/hub-server.test.tstest/process/install-local.test.tstest/support/fake-ssh.tstest/support/hub-client.tstest/support/remote-hub.ts
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- Router: a cancelled opening no longer starts print-code or assigns a port (check after the config read and after print-code) - Tunnels: ensure takes the opening's AbortSignal, so a cancelled opening never binds or repoints a listener (D12) - Client: a hub opening ended by a lost connection reaches the Hubs status as an error; a superseded opening's pending request is forgotten - Sonar: Set for outdated statuses, no nested ternary/template, \d classes, no await in a loop, Escape handled on the menu button and role=menu list, assertions in tests that only waited
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Inline comments:
Review comments at @src/web/client/connection.ts:
- Line 158: Update the `openHub` request-forgetting flow around
`this.openingReq` and `this.pending.forget` to suppress queued errors only for
intentionally forgotten request IDs, using a bounded or lifecycle-cleaned
correlation cache rather than retaining IDs indefinitely. Clear cached IDs when
the connection or client session ends, while preserving active-request
resolution and notices for null or uncached request IDs.
Review comments at @src/web/ui/app.tsx:
- Around line 151-155: Update closeOnEscape so that when Escape closes the Hubs
menu, focus returns to the Hubs button. Keep the existing Escape-only behavior
and menu-closing flow unchanged.
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📒 Files selected for processing: 17
src/hub/links/hub.test.tssrc/hub/links/hub.tssrc/hub/main/index.tssrc/hub/router/index.test.tssrc/hub/router/index.tssrc/hub/server/listener.tssrc/hub/server/tunnels.test.tssrc/hub/server/tunnels.tssrc/protocol/hub.tssrc/web/client/connection.tssrc/web/client/page.tssrc/web/client/requests.test.tssrc/web/client/requests.tssrc/web/ui/app.tsxtest/e2e/hubs.spec.tstest/integration/ssh-localhost.test.tstest/process/hub-router.test.ts
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- test/e2e/hubs.spec.ts
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- Client: OpeningRequests keeps the latest opening and the 8 most recently superseded ones (cleared when the session closes), so an error a superseded opening sent before the hub ended it is no notice - Hubs menu: Escape returns the focus to the Hubs button - e2e: tunnel and remote hub ports avoid the local hub's port, which it may not listen on yet
…b-in-its-own-window Merges the change's delta specs into openspec/specs (cli, hub, protocol, web: 9 added, 14 modified requirements) and moves the change to openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window.
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Review comments at @openspec/specs/protocol/spec.md:
- Line 9: Update the later definition of BROWSER_PROTOCOL_VERSION to 10 so it
matches the value in the protocol version requirements and the specification
defines the constant consistently.
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openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/.openspec.yamlopenspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/design.mdopenspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/proposal.mdopenspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/cli/spec.mdopenspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/hub/spec.mdopenspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/protocol/spec.mdopenspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/web/spec.mdopenspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/tasks.mdopenspec/specs/cli/spec.mdopenspec/specs/hub/spec.mdopenspec/specs/protocol/spec.mdopenspec/specs/web/spec.md
💤 Files with no reviewable changes: 8
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/.openspec.yaml
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/proposal.md
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/tasks.md
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/web/spec.md
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/cli/spec.md
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/protocol/spec.md
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/design.md
- openspec/changes/archive/2026-10-18-dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/specs/hub/spec.md
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Main (DEV-2108) split the big process-test files and moved their shared setup into test/support. This branch's test changes are re-homed there: - hub-server.test.ts additions (forwarded Host and Origin checks) go into hub-server-http.test.ts and hub-server-websocket.test.ts - the remote-hub opening, tunnel and install tests go into the new hub-router-opening.test.ts and hub-router-install-hub.test.ts - the hub budgets (HUB_ENV), INSTALL_TIMEOUT, PRINT_CODE, restartHub, connectRuns, LOGIN_URL, configFile and RemoteHostConfig.port move into test/support/hub-router.ts, shared by the split files - hub.arc42.md keeps this branch's Purpose sentence and principle 3 wording with main's [enforced] pointers to the split test files - install-local.test.ts keeps main's reinstall flake fix and this branch's browser protocol 10
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- Line 51: Update the WebSocket upgrade description to state that authentication
accepts either a valid token or a valid code, while retaining the documented
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architecture/hub.arc42.mdtest/process/hub-router-config.test.tstest/process/hub-router-install-hub.test.tstest/process/hub-router-opening.test.tstest/process/hub-router-remote.test.tstest/process/hub-server-http.test.tstest/process/hub-server-websocket.test.tstest/process/install-local.test.tstest/support/hub-router.ts
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…3 credentials - openspec/specs/protocol/spec.md: the Shared constants requirement states BROWSER_PROTOCOL_VERSION = 10, as the code and the protocol versions requirement do - hub.arc42.md principle 3: an upgrade needs the token or a valid one-time code
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Closes DEV-2107.
What and why
From the laptop you can now view a remote host as if you were on it: its own hub, repos, worktrees and terminals, read from its own
config.json. You configure nothing beyond the existinghostsentry.The issue asked for a separate Chrome
--appwindow per host. The planning interview settled on the current tab instead: the tab navigates to the remote hub and back. All openings go through the home page, so errors and the Tailscale login link always show in one place.How it works
wtd ui --print-code, makes a hub of thatwtd's version serve on the host and prints one line,{"port":…,"code":"…"}, instead of opening a browser.openHub, the home hub runs that command over the host's existing SSH control master. A Tailscale check's login link is relayed to the page while it waits.127.0.0.1:<host port>and relays each accepted connection to the remote hub with its ownssh -W. It checks the forward withGET /, then replies withhttp://127.0.0.1:<host port>/#code=…&host=…&home=…&hubs=…, and the tab navigates there.config.json. It never changes after that, so the host's page keeps its origin and itslocalStoragepreferences.Host: 127.0.0.1:<any port>withOriginequal tohttp://plus that Host, so a forwarded port reaches it. The token or code is still required, and DNS rebinding still fails because the Host is an IP literal.hub.arc42.mdprinciple 3 is updated with the approved wording.User-facing
home/#hub=<name>.Opening box…,box needs Tailscale loginwith an "Open login link" button, orbox: <reason>with a ×. A host whosewtdis missing or too old offers Reinstall on box. It installs without restarting the daemon (a newinstallHuboperation, queued with restarts and reinstalls), then opens the hub.worktree-term — <host>.config.jsongains an optional per-hostport:{ "hosts": [{ "name": "devbox", "ssh": "devbox", "port": 7418 }] }AllowTcpForwarding yes, which is OpenSSH's default.Compatibility
BROWSER_PROTOCOL_VERSIONgoes from 9 to 10 for the new messages and the browser-only error codeshub-outdatedandhub-failed. An open page reloads once. The daemon protocol and daemons are unaffected. The print-code line and the page fragments pass betweenwtdinstallations of any versions, so they are frozen infrozen.golden.json.Testing
-W) and e2e (test/e2e/hubs.spec.ts) tests.pnpm test, lint,tsc -b,la-arch-check,la-check-conventionsandopenspec validate --strictall pass.test/integration/ssh-localhost.test.tswere not run locally.The full spec is in
openspec/changes/dev-2107-worktree-term-open-a-remote-hosts-hub-in-its-own-window/.🤖 Generated with Claude Code
Summary by CodeRabbit
wtd ui <host>, switching to it in the same browser tab.wtd ui --print-codeto print a one-time connection code without opening a browser.