inspector/clients/web/index.html
Cliff Hall e3b0b6a908
feat(connection-info): wire Connection Info modal to the connection handshake (#1377)
* feat(server-info): wire Server Info modal to the connection handshake

Closes #1364

- Add ServerInfoModal wrapping the existing ServerInfoContent, mirroring the
  ServerSettingsModal layout.
- Gate the Server Info button on ServerCard to render only when the
  connection is "connected".
- Expose `getClientCapabilities()` on InspectorClient (and protocol +
  FakeInspectorClient), and surface it through useInspectorClient so the
  modal can render the client side of the capability handshake without
  poking the SDK Client's private state.
- App.tsx: open the modal from the gated Server Info button, derive the
  active server's transport and OAuth details (synchronously, from the
  guided-OAuth state snapshot + persisted settings), and reset the open
  flag on InspectorClient `disconnect` so the modal does not auto-reopen
  on a future reconnect.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(server-info): dedupe modal header and render instructions in ContentViewer

- Drop the in-content "Server Information" Title from ServerInfoContent and
  rename the modal title to "Server Information" so the modal renders one
  heading instead of two stacked ones.
- Swap the instructions Blockquote for ContentViewer (copyable, with the
  existing wrapping Code variant) so long instructions wrap and the user
  can copy the full payload.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(server-info): rename ServerInfo -> ConnectionInfo

The popup covers server identity AND client capabilities AND OAuth state —
it's a snapshot of the live connection, not just the server. Rename to match
what it actually shows. Also add a "Server Implementation" heading above
the top section (name/version/protocol/transport) to balance the existing
capability headings.

- ServerInfoContent -> ConnectionInfoContent (directory, file, exports)
- ServerInfoModal -> ConnectionInfoModal (directory, file, exports)
- ServerCard button label "Server Info" -> "Connection Info";
  prop onServerInfo -> onConnectionInfo
- Modal title -> "Connection Info"
- App.tsx / ServerListScreen / InspectorView wiring updated to match

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(connection-info): cap instructions block height so it scrolls in place

A long server prompt (e.g. an Everything-style instruction document) was
pushing the OAuth section and the modal chrome off-screen — users had to
scroll the whole modal to reach the close button. Wrap the ContentViewer
in ScrollArea.Autosize with mah=280 so the instructions section scrolls
internally and the rest of the modal stays put.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(connection-info): add subtle background to section headings

Add a `section` variant for Title that paints the heading in the existing
`--inspector-surface-subtle` token (same surface token already used for
modal call-out panels). Apply it to each section heading in
ConnectionInfoContent (Server Implementation, Server Capabilities, Client
Capabilities, Server Instructions, OAuth Details) via a SectionHeading
subcomponent constant, so the sections read as distinct cards against the
modal background instead of bleeding into one stream of text.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(stories): wrap long import line in ConnectionInfoModal.stories.tsx

Prettier flagged the import in CI. The line exceeded printWidth=80 and
needed to wrap onto multiple lines.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(agents): require `npm run format` before committing

Add a pre-commit instruction to run the auto-fixing `npm run format` ahead
of `npm run validate`. `validate` runs `format:check` (non-fixing) which
will fail CI on any unformatted file — running the auto-fixer first
eliminates that class of failure entirely.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore(favicon): use theme/assets/MCP.svg as the favicon source of truth

Point index.html's icon link at /src/theme/assets/MCP.svg so the same MCP
logo asset already imported by ViewHeader is also the favicon. Delete the
now-unused clients/web/public/favicon.svg. Vite resolves the source path
during build and emits a hashed copy under dist/assets/.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(server-card): surface failed-handshake errors with a 5s auto-dismiss

Two related fixes so the user actually sees what went wrong when a
connect attempt fails (e.g. OAuth-backed server, bad URL, missing dev
auth token):

- App.tsx: add `connectInFlightRef` and skip clearing `activeServerId`
  in the InspectorClient `disconnect` listener while a connect attempt
  is in flight. The transport closes during a failing handshake and
  dispatches `disconnect` before the catch block sets `errorMessage`;
  without this guard InspectorView would map the card to plain
  "disconnected" and the InlineError would never render.

- InlineError: opt-in `autoDismissMs` prop that runs a Mantine `slide-up`
  Transition exit animation after the message has been visible for the
  given duration. Visibility is derived from a "dismissed message"
  state (rather than a mounted boolean + setMounted-in-effect), so the
  timer re-arms whenever `error.message` changes without tripping the
  react-hooks/set-state-in-effect rule. ServerCard passes
  autoDismissMs={5000}.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(server-card): own InlineError visibility + animate parent-driven removal

Move the 5s auto-dismiss timer and visibility state out of InlineError
and into ServerCard so the slide-up exit animation runs in both cases:

- Timer-driven: after 5s the alert animates out (existing behavior).
- Parent-driven: when `connection.error` is cleared mid-flight (e.g. a
  successful reconnect), the alert ALSO slides up instead of vanishing.

To keep the message painted during the parent-driven exit, ServerCard
tracks a `lastError` state that mirrors `connection.error` only on its
truthy edges. The conditional setState during render is the supported
React pattern for "remember the last seen value of a prop"; gated on
message inequality so it can't loop. The `useRef` version of this
pattern failed `react-hooks/refs` (no ref writes/reads during render).

InlineError is now a pure presentational component: `mounted` prop
controls a Mantine `slide-up` Transition. The internal `autoDismissMs`
prop is gone — its single caller has moved to the controlled `mounted`
pattern.

Closes the "error vanishes the moment the parent removes it" half of #1364
(the timer half landed in 6d147e0f).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor(server-card): surface connection errors as a toast, drop InlineError

Move handshake-failure messaging out of the ServerCard body and onto a
Mantine toast (`notifications.show`). The inline alert had a 5-second
visibility contract entangled with InspectorView's status pipeline, and
the active card was flipping through error → disconnected → error during
a failing handshake; surfacing the error as a toast sidesteps that whole
timing problem and keeps the card focused on the live status indicator.

- App.tsx: toast on the connect-catch path; drop `errorMessage` state +
  `connectInFlightRef` (the latter was only there to keep the inline
  alert visible past the transport's close event).
- InspectorView: drop the `errorMessage` prop and the
  `connectionStatus === "error" && errorMessage` mapping branch.
- ServerCard: drop the InlineError rendering + the displayedError /
  errorVisible visibility state machine.
- Delete the InlineError component — no other consumers.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore(notifications): anchor toasts to the bottom right

Move the Notifications portal from top-right to bottom-right so a
connection-failure toast doesn't overlap the ViewHeader / tabs row.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* review: address PR feedback on the Connection Info modal

1. Hoist `EMPTY_CLIENT_CAPABILITIES = Object.freeze({})` to module scope
   in `useInspectorClient` so the fallback returns a stable reference
   (avoids invalidating downstream `useMemo`/`useEffect` deps when no
   client is attached).
4. Drop the `?? "stdio"` silent fallback on `connectionInfoTransport`
   in the JSX — gate the modal render on `activeServer` too. The
   "stdio" default still lives at the derivation site (config.type is
   schema-optional and `ServerType` is required by the modal prop),
   but the gate makes the invariant explicit.
6. Replace the raw `document.querySelector("button.mantine-CloseButton-root")`
   in `ConnectionInfoModal.test.tsx` with `screen.getByRole("button",
   { name: /close/i })`. Add `aria-label="Close"` to the
   CloseButton so the assertion (and screen readers) have a name to
   match on.
7. Switch the OAuth scope splitter from `/\s+/` to the literal `" "`
   per OAuth 2.1 §3.3.

Also clarify in comments:
2. Note that `connectionInfoOAuth` uses snapshot-at-open semantics on
   purpose — token refreshes mid-session won't re-render the modal.
5. Note that we prefer the AS-advertised `authorization_endpoint`
   over `authorizationUrl` because the latter is per-flight noise
   (state, code_challenge) rather than a stable identifier.

Finding 3 (modal exit animation short-circuited by the `{initializeResult
&& …}` guard) left as intentional — we want the snap-shut on disconnect
so a stale info dialog can't keep rendering with no live client behind it.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(connection-info): tighten the OAuth memo comment per re-review

The reviewer noted that "snapshot-at-open" was imprecise — the memo
re-runs on any of its deps (connectionStatus, inspectorClient,
activeServer), which includes settings edits that re-reference the
active server. Reframe as "snapshot-at-last-derivation" and call out
the natural triggers (server switch, reconnect, settings edit) so a
future reader doesn't conclude the memo is open-only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-30 16:42:37 -04:00

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HTML

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/src/theme/assets/MCP.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link href="https://fonts.googleapis.com/css2?family=Fredoka:wght@300..700&family=Roboto+Mono:ital,wght@0,100..700;1,100..700&display=swap" rel="stylesheet" />
<title>MCP Inspector</title>
</head>
<body>
<div id="root"></div>
<script type="module" src="/src/main.tsx"></script>
</body>
</html>