Commit graph inspector/clients/web/src/components
Author SHA1 Message Date
cliffhall
08fc20a22d feat(apps): negotiated app-rendered form elicitations
Let a server hand a form `elicitation/create` to an MCP App and return the
app's ordinary `ElicitResult`, with the native elicitation form as the
fallback on every failure.

No second extension, no custom method, and no custom result shape: the only
new wire surface is a nested `elicitation` flag on the existing
`io.modelcontextprotocol/ui` extension on each side, plus
`_meta.ui.resourceUri` on the request. App rendering is selected only when
all four gates hold — client `elicitation.form`, client MCP Apps MIME type,
the nested `elicitation` setting on BOTH peers, and a valid absolute `ui://`
URI on the request.

Only the web client advertises the nested client-side setting, and only
because it has a sandbox renderer: supplying
`InspectorClientOptions.appElicitation` is what opts a client in, so CLI and
TUI keep advertising the MIME type without ever claiming they can resolve an
elicitation through an app.

Routing lives in the one funnel both entry points already use
(`enqueuePendingElicitation`), so the inbound handler and the MRTR driver
cannot diverge. Ownership is request-scoped — a per-request id keys the
renderer, iframe and bridge — so two concurrent elicitations can never
resolve through each other's bridges. An explicit `decline`/`cancel` is a
completed elicitation and goes back to the server; everything else (absent or
malformed metadata, resource/sandbox/bridge failure, an app with no
elicitation capability, a timeout, an invalid result or one that fails the
requested schema) falls back.

The Inspector speaks the ext-apps#733 / SEP-3118 wire protocol but cannot yet
consume its helpers — the released `@modelcontextprotocol/ext-apps` (1.7.5)
predates that PR. `core/mcp/appElicitation.ts` and
`AppRenderer/requestAppElicitation.ts` mirror it exactly and are marked for
deletion once a release containing it ships. One consequence needed its own
seam: ext-apps 1.7.5 parses the view's `ui/initialize` through a schema that
strips `elicitation`, so an app that correctly advertises it would look like
one that did not, silently turning every negotiated elicitation into a
fallback. `AppRenderer/appCapabilities.ts` records the raw frame instead, and
prefers the bridge's own value once it carries the key.

`AppRenderer` now takes an `AppRenderSource` union rather than a `Tool`, so
the same renderer and bridge factory serve an App tool and an elicitation
without either faking the other's shape.

Adds the public fixture (`app_choose_option` + a self-contained
`ui://demo/choose-option.html` app covering accept/decline/cancel), its two
showcase configs, and `smoke:web:elicit`, which drives the negotiated path
end to end in headless Chromium and then the same tool against a server that
never advertised the capability, asserting the native form takes it.

Closes #1854

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 19:05:33 -04:00
cliffhall
219765efff fix(auth): address Copilot review round 10, and document the concurrency design
The headline is a correction to my own claim rather than a new defect.

**The optimistic verify is weaker than the comment said it was.** It
described the residual as a crash between the write and the verifying read.
The reviewer pointed out that no crash is needed: order two writers as
write-A, verify-A, write-B, verify-B and both report success while A's entry
is gone — A's verify simply ran before there was anything to see, and B did
nothing wrong. A crash is one instance of that shape, not the whole of it.
The trace in the old comment quietly assumed A verifies *after* B writes,
which nothing guarantees.

Corrected in the doc comment, the README and the spec, and the honest
summary is now stated rather than implied: this converges in every
interleaving where the clobber lands before the verify, it is not mutual
exclusion, and a deployment that needs the guarantee wants an OS-backed lock
from a dedicated library — not another hand-rolled election. It remains
better than what it replaced, which lost updates across a wider set of
interleavings and could not be closed at all with what Node exposes.

The other findings:

- **An envelope naming the cipher still is not an openable one.** Round 9
  added a `kdf`/`data` presence check; three dot-separated strings satisfied
  it while an empty tag, a 4-byte IV or `N: 3` still made every decrypt
  throw — so the quiet "Encrypted file" footer went to a file whose next
  save was guaranteed to fail. Now validates part sizes, a non-empty
  ciphertext, and the scrypt cost parameters (node rejects a non-power-of-two
  `N` synchronously, out of the derivation rather than the decrypt). A
  positive control asserts a file we actually wrote still reads as encrypted.

- **`encryptionUnknown` + `looseMode` claimed an exposure it had not
  established.** With both set, `plaintext` is absent, so a `!== false` test
  landed on "anyone who can read it can read the secrets in it" — about a
  file that may well hold ciphertext we simply could not classify. Three-way
  now, in `secretStorageCaveat` and mirrored in the footer's tooltip, with a
  test on each.

- **The README described a lock that no longer exists**, which is the worst
  kind of stale doc: it stated a durability guarantee the code had stopped
  providing. Rewritten to describe the actual design, including the residual.

- **The private-method access in the concurrency test** now carries the
  justification the repo's TypeScript rules require: the asserted shape is
  `writeMap`'s real signature, so a rename breaks the line instead of
  silently detaching the stub, and a production injection seam would let the
  real write path drift from the tested one.

Also updates `specification/v2_servers_file.md`, which still described #1356's
world: one keychain-only store, and unavailability as a hard error. It now
covers store selection and the probe, the file format and lazy encryption
upgrade, the concurrency design and its residual, the `getStrict`/`getMany`
seams and the two traps `getStrict` hit, the durability gate on migration,
the keychain hand-off and its conditional delete, and how the active store is
surfaced.

Full `npm run ci` green. (One unrelated `AppRenderer` theme-flip test failed
once under full-suite parallelism and passes in isolation with and without
these changes — a flake, not a regression.)

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 18:33:59 -04:00
cliffhall
6efc65d2af fix(auth): address Copilot review round 7 (five of six findings)
Five taken; one rejected with evidence, below.

- **The keychain hand-off ran outside the file lock.** Read → copy → delete
  has to be one transaction: another Inspector completing a `set` between
  the read and the delete had its brand-new secret removed without ever
  being copied — a write that reported success and then vanished, which is
  the loss the lock exists to prevent, reached through the migration meant
  to preserve things. The whole sequence now runs under the same
  cross-process lock every mutation takes.

- **An unmigratable entry was skipped and the file deleted anyway.** A key
  that is not `serverId:field` cannot be addressed through the store API,
  so it cannot be copied — which makes the hand-off incomplete by
  definition, and the complete-success rule then forbids removing the
  source. It was discarding that value permanently in order to tidy up a
  migration that had failed. The copyable entries still go across; the file
  stays, and says why.

- **`readOnDiskEncryption` accepted any format version.** A version-2 file
  was reported as a usable plaintext or encrypted store even though
  `readMap` refuses it and every save fails. Checked before the mode now,
  matching `readMap`.

- **The loose-mode warning at selection was encryption-blind**, claiming a
  reader could read the secrets of a file that is ciphertext, and it
  duplicated the caveat printed moments later by `warnAboutSecretStorage`.
  Selection now only repairs; the descriptor path does the reporting,
  because it is the one that knows whether the file is encrypted.

- **The footer's tooltip offered to copy the path without showing it.** The
  band stopped printing it and the accessible name carries it for
  screen-reader users, which left a sighted user unable to see where a
  custom destination points without pasting it somewhere else.

**Not taken: "`writeStoreFile` is not atomic."** It is. The finding reads
`store-io.ts` line 84 as a direct write, but `writeFile` there is imported
from the `atomically` package, not `node:fs`. Verified rather than argued:
writing over an existing file changes its inode (so a rename happened) and
leaves mode `0600`. I had started implementing the suggested temp+rename
before checking the import, which would have replaced a tested library with
a hand-rolled duplicate.

That check corrected something of mine, though: `tightenSecretFilePermissions`
justified itself with "a rename over a 0644 file keeps the loose mode
forever", which is false — the temp carries `mode: 0o600` and the rename
replaces the inode, so every *write* re-establishes it. The function is
still needed for the case it actually addresses: a file that exists and is
never written. Comment corrected to say so.

Full `npm run ci` green — 5,753 tests under the coverage gate.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 14:57:55 -04:00
cliffhall
fdeffa1f00 fix(auth): address Copilot review round 6 on the secret-store PR
Four findings, all suppressed, all real. Three are the same mistake in
different places: a state that was never established being reported as a
confident answer.

- **`readOnDiskEncryption` conflated "no file" with "unreadable file".**
  Both answered `null`, and the descriptor falls back to the configured
  write policy on `null` — so a passphrase-configured install reported
  "File (encrypted)" about a file whose envelope had never parsed, and
  which `set` was in fact about to refuse rather than overwrite. It now
  returns a four-state result, and only `absent` falls back to the policy
  (honestly: the first write really will create it that way). `unreadable`
  produces `encryptionUnknown` on the descriptor, `plaintext` is omitted
  entirely so nothing can read a default out of it, and the label, caveat,
  tone and footer all carry "unreadable" rather than guessing a mode.

- **The loose-mode warning overstated exposure for an encrypted file.**
  "Anyone who can read it can read the secrets in it" is false when the
  file is ciphertext — a reader gets the bytes and still needs the
  passphrase. Both the caveat and the footer tooltip now branch on
  encryption: the passphrase becomes the only protection, which is the
  real consequence. Overstating it is not harmless, because a warning that
  cries wolf is discounted on the occasion it is literally true.

- **The keychain hand-off could invert its own keychain-wins rule.**
  `SecretStore.get` answers `null` both for a missing entry and for a
  keychain it could not read, and the migration *writes* on `null` — so a
  transient read failure would overwrite a newer keychain value with the
  older file copy. Added an optional `getStrict` (throws instead of
  swallowing) implemented by `KeyringSecretStore`, with
  `secretStoreGetStrict` falling back to `get` for stores whose reads
  cannot fail. A throw now aborts the hand-off with the file left in
  place, so the next run retries.

Writing the tests turned up one more, in code the review had passed:
`parseOwner` recorded a garbled pid as `-1`, and `process.kill(-1, 0)` is
a *wildcard* asking about every process this user can signal — it answers
"alive" almost always, which would have made a lock with a corrupt stamp
permanently unstealable. Only a positive pid is usable now; anything else
is treated as no pid at all and the mtime decides.

Tests: the four envelope states kept distinct; the descriptor refusing to
guess, with the genuine no-file case as the control; strict-read abort
without a write and with the file preserved, plus a store whose `get` and
`getStrict` disagree so the test proves which one the migration consults;
encryption-aware wording asserted in both directions in the caveat and the
band; three unusable owner stamps and a wildcard pid; and the descriptor
shapes that must now be rejected — neither half of the encryption question
answered, or both. Full `npm run ci` green — 5,750 tests under the
coverage gate.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 14:40:29 -04:00
cliffhall
1aa1f5a0ca docs(web): attach the footer doc blocks to the functions they describe
No behavior change.

Adding `filePermissionsSentence` in decc673a inserted it directly under
`footerMessage`'s doc block, which left two block comments stacked and each
attached to the wrong function: `footerMessage` was undocumented, and its
"why not `secretStorageLabel`" rationale read as though it were about the
permissions helper, which it is not.

Moves that block back above `footerMessage`, and drops the inline comment
inside it that now duplicated the new helper's doc — and had gone stale
besides, since it still described two permission states rather than three.

Caught by @mcp-inspector-v2-f1 on a read of the pushed commit.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 14:24:09 -04:00
cliffhall
decc673a5d fix(auth): address Copilot review round 5, and land the impl its tests need
Repairs origin as well as answering the review. 2d2c787e committed the
`absorbFileSecretsIntoKeyring` tests without the implementation they
import, so the branch has been failing `tsc` since; this commit brings the
source across.

Round 5's four findings (two inline, two suppressed):

- **The stale-lock takeover was still racy.** Round 4 made *stealing*
  liveness-aware but left the takeover as remove-then-recreate, which is
  not an election: two waiters can both judge the same lock stale, the
  first removes it and takes a fresh one, and the second then removes
  *that* — both inside the section, which is the lost update the takeover
  exists to prevent. Claiming is now an atomic `rename` to a
  token-unique name, so exactly one waiter can take a given stale lock and
  the losers get ENOENT. A failed claim also falls through to the deadline
  instead of `continue`ing, so a takeover that can never succeed times out
  rather than spinning forever on a swallowed error.

- **Every `stat` failure was read as "no file yet".** An existing file we
  cannot inspect (EACCES on the directory, a mode-less filesystem) then
  produced no warning at all, and the footer went on stating owner-only
  permissions having verified nothing. There is now a third state,
  `unknown`, carried end to end: `permissionsUnknown` on the descriptor, a
  caveat that says the permissions could not be checked, a `warn` tone, and
  its own branch in the footer sentence — which otherwise would have
  claimed "Owner-only permissions." by omission, the same bug one layer up.

- **mountinfo decoded only `\040`.** The kernel escapes tab, newline and
  backslash too (`\011`, `\012`, `\134`), so a mounted path containing any
  of them was compared in its escaped form, matched nothing, and read as
  the container's writable layer — `memory` selected and persistence
  silently lost on a box that had arranged for it. Decoded as octal in
  general now, since the rule is octal-in-general and a future addition
  would otherwise reintroduce exactly this.

- **File-backed secrets vanished once a keychain appeared.** Save secrets
  without libsecret, install libsecret, and the next run selects the
  keychain and stops seeing them: still on disk, read by nothing, and
  nothing looks broken. `absorbFileSecretsIntoKeyring` hands them over on
  the run that finds a keychain, under the rules the two existing plaintext
  migrations already use — keychain wins on conflict, the file is removed
  only on complete success, and a file that cannot be read is never
  deleted, because that is precisely the case where the values would be
  lost.

Tests: a two-waiter race over one stale lock asserting a single holder
throughout; `unknown` from `readSecretFilePermissions` through the
descriptor to the footer sentence and tone; the hand-off's happy path,
keychain-wins, write-failure, undecryptable-file, empty-file,
malformed-key, and explicitly-configured-keyring cases; and six more
rejected descriptor shapes, including each file-only field on a non-file
kind. Full `npm run ci` green — 5,732 tests under the coverage gate.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 14:15:35 -04:00
cliffhall
71cb7f3eae feat(web): state the file store as a sentence, and copy its path on click
The footer's file states now read "Secrets: Plaintext file. Owner-only
permissions." and "Secrets: Encrypted file. Owner-only permissions.",
and the band itself became the copy affordance for the path.

Three things worth reviewing:

- The path is no longer printed on the band. It goes to the clipboard
  instead, which means the only place it stays *readable* is the
  button's accessible name — so that carries it in full
  ("Copy secrets file path: /home/node/.mcp-inspector/secrets.json")
  rather than a generic "Copy". A clipboard is no use to a screen-reader
  user who cannot inspect it.

- "Owner-only permissions." is a claim of fact, so it is made only when
  the mode was verified as 0600. `looseMode` is set exactly when it is
  something else and could not be tightened, and the message says
  "Mode 0644 — not owner-only." there. A footer that asserted the
  opposite of the truth about a secrets file is the one failure this
  band exists to prevent, so it has its own test.

- The footer phrases its own copy rather than reusing
  `secretStorageLabel` for the file case: that label is parenthetical
  ("File (unencrypted)") because the startup banner appends
  " at <path>" to it. The tone and the underlying facts still come from
  the shared helpers, so the two surfaces cannot disagree about
  anything that matters. Memory's line is still derived from the shared
  caveat.

The click target is an `UnstyledButton` filling the band edge to edge —
a real control, reachable by keyboard and announced as a button, rather
than a click handler on a div. Padding moved from the band to the inner
row so the button has no dead margins.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 14:05:13 -04:00
cliffhall
2d2c787e22 style(web): tighten the in-memory caveat and punctuate the footer
Reads "Memory (this session only): Secrets are not written anywhere and
are lost on exit." — shorter tail than "lost when the Inspector exits",
and a colon separating the store from what follows it.

The colon is added at the footer's composition, not inside
`secretStorageLabel`. The label is also consumed alone by
`secretStorageSummary`, which appends " at <path>" for a file-backed
store, so a colon baked into the label would print
"File (encrypted): at /path" in the startup banner. It renders only when
a detail actually follows.

The caveat string is shared with the banner's warning line, so the
terminal picks up the shorter wording too.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 13:56:13 -04:00
cliffhall
6460d1804a style(web): bold the "Secrets:" prefix in the settings-modal footers
Weights the label so the band reads as a labelled fact rather than one
run of prose — the eye lands on what the line is about before reading
which store it names.

Rendered as a `span` inside the existing `Text` rather than as a sibling
in the `Group`: `Text` renders a `<p>`, so a nested one would be a `<p>`
inside a `<p>` (invalid, and the browser closes the outer paragraph
early), and a sibling would take the Group's `gap` and sit too far from
the value it labels. `inherit` keeps it at the label's own size.

Splitting the text is why the assertions move off `getByText`: it matches
a string against an element's *direct* text nodes, so "Secrets: OS
keychain" now reads as two fragments even though it renders as one line.
The unit tests, both modal tests, and the four stories assert
`toHaveTextContent` on the band instead, which reads the full subtree.

Verified in the running dev server: prefix 700, store name 500, both at
the same 12px.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 13:31:04 -04:00
cliffhall
de7795ca54 fix(auth): address Copilot review round 2 on the secret-store PR
Seven findings, all taken.

- **The descriptor went stale after the upgrading write.** Round 1 made it
  read the file instead of the policy, but it was still computed once and
  cached beside the selection — so the first `set` under a newly-set
  passphrase encrypted the file while `/api/config` kept serving "still
  unencrypted" for the rest of the session, describing bytes this very
  process had just changed. The *selection* stays cached (the banner, the
  payload, and the store doing the writing must agree on which store it
  is); the file descriptor is re-derived per call, which costs one read of
  a small file per config fetch.

- **The mount check asked the wrong question.** Comparing a directory's
  `st_dev` against its parent's detects a mount *at* that path, but a
  volume mounted at `/home/node` leaves `/home/node/.mcp-inspector` an
  ordinary subdirectory sharing its parent's device — so a durable
  container setup was judged unmounted and demoted to session-only
  `memory`. It now reads `/proc/self/mountinfo` and asks whether the
  directory is *under* any mount other than `/`, which also catches the
  same-device bind mount no `st_dev` test can see. Where mountinfo is
  unreadable (macOS, Windows, a `/proc`-less container) it falls back to
  the device comparison, now against `/` rather than the parent.

- **A decrypted payload was cast, not checked.** GCM proves the bytes are
  authentic, not that they parse to the right shape. An array passes
  `typeof === "object"`, takes the named assignment, and then
  `JSON.stringify` drops every named property of an array — so `set` would
  resolve having written a file without the secret it was handed. Silent
  loss on the one operation whose entire contract is that it does not lose
  things. Both branches now validate a non-array object of string values,
  and a shape refusal is deliberately not rethrown as a key mismatch,
  which would send the user to fix a working passphrase.

- **The read-modify-write cycle was only serialized in-process.** A
  durable file is shared state and a second Inspector on the same box (a
  CLI run beside a web session) could read the same map and overwrite the
  first one's save, both reporting success. Mutations now take a
  `mkdir`-based lock. A lock left by a killed process is stolen after 10s
  — one `docker kill` must not brick secret writes permanently, which
  would be a worse failure than the race. If the lock cannot be created at
  all, the write proceeds unlocked rather than denying a real user a real
  secret to prevent a race with a process that may not exist. Reads do not
  lock: `writeStoreFile` is atomic, so a reader sees the old file or the
  new one, never a torn one.

- **The permission repair was fire-and-forget while the docs promised
  0600.** A file owned by another user, or on a read-only mount, stayed
  exposed while the footer described it as protected. It now verifies the
  resulting mode and warns, naming the actual mode, when it could not be
  tightened.

- **`Group`'s theme carried a domain-named `secretStorageFooter`
  variant**, which AGENTS.md reserves for app-wide primitive styling.
  Renamed to the structural `stickyModalFooter`; the secret-storage
  meaning stays in the element that owns it.

- The PR description still claimed the salt made a short passphrase safe,
  contradicting the corrected comment and README. Updated.

Tests: both mount layouts that motivated the change (mount-at and
mount-above) plus the sibling-prefix, space-escaped, first-run, and
no-mountinfo cases; the array and non-string refusals on both the
plaintext and the authentic-ciphertext paths (the latter through a
hand-built fixture, since the store's own writer cannot produce that
state); lock exclusion, stale-lock stealing, the un-lockable fallback, and
two independent store instances racing; the permission report in all three
states; and the descriptor no longer going stale within one process. Full
`npm run ci` green — 5,688 tests under the coverage gate.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 12:51:14 -04:00
cliffhall
3452a63101 fix(auth): address Copilot review on the secret-store PR
Six findings, all taken.

- The descriptor reported the *write policy*, not the file. Adding
  `MCP_INSPECTOR_SECRET_KEY` to an install that already has a plaintext
  file flipped `store.encrypted` immediately, so the banner and footer
  claimed "File (encrypted)" while the existing secrets sat readable
  until the next `set`. `FileSecretStore.readOnDiskEncryption()` now
  reads the envelope (never the payload, so it needs no passphrase) and
  the descriptor is built from that. The transitional state gets its own
  `pendingEncryption` flag, which changes the advice without softening
  the verdict — "set a passphrase" is the wrong thing to tell someone who
  already has, so the caveat names the pending write instead.

- The secrets file ignored the configured storage directory. A container
  mounting only that directory was judged unmounted, fell back to
  `memory`, and lost secrets the user had arranged to keep.
  `defaultSecretFilePath()` now follows `MCP_STORAGE_DIR` — the variable
  that already relocates OAuth tokens and `client.json` — between the
  explicit `MCP_INSPECTOR_SECRET_FILE` and the `~/.mcp-inspector`
  default. (The issue comment called it `MCP_INSPECTOR_STORAGE_DIR`; no
  such variable exists.)

- `version` was never checked before the plaintext branch, so a
  `{ version: 2, encryption: "none" }` file was read and silently
  rewritten as version 1, discarding whatever the newer format added —
  the same destroy-to-satisfy-an-additive-request case the encrypted
  branch already refuses. Checked first now, so the answer no longer
  depends on which encryption mode the newer writer chose.

- The doc comment claimed a per-file salt made "a short, memorable value
  safe to use". It does not: the salt defeats precomputation, not
  guessing, and the scrypt cost is deliberately a few milliseconds
  because it runs on every read and write. Both the comment and the
  README now say to use a high-entropy value, generated rather than
  chosen.

- `usableSecretStorage` validated only `kind`, so a partial
  `{ kind: "file" }` was cast through and — because a missing `plaintext`
  is falsy — rendered as the quiet, neutral *encrypted* file. That is the
  confident half-answer the guard exists to reject, produced by the
  absence of information rather than by any claim the backend made.
  `reason`, `durable`, and each kind's own required fields are checked.

- The footer's inline `Tooltip` carried four static props; extracted to a
  `CaveatTooltip` constant per the `.withProps()` rule.

Tests cover each: the policy/file disagreement in both directions and the
no-file-yet fallback, `MCP_STORAGE_DIR` and its precedence against
`MCP_INSPECTOR_SECRET_FILE`, the version refusal (asserting the bytes
survive it) split from the unrecognized-cipher refusal it used to be
conflated with, `readOnDiskEncryption` including the keyless and
unparseable cases, five new rejected descriptor shapes, and the changed
caveat. Full `npm run ci` green.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 12:26:33 -04:00
cliffhall
bc408f5869 feat(auth): file-backed and in-memory SecretStore for hosts with no keychain
Closes #1950

Before this, a box with no reachable OS keychain — the published
container (no D-Bus session, #1848), Android/Termux (no platform binary,
#1905), a minimal Linux install without libsecret — could not persist an
OAuth client secret or a stdio `env:` value at all. `KeyringSecretStore`
degraded into a store that silently holds nothing: `get` returned null,
`delete` no-opped, and `set` hard-failed with a 503. That is the correct
failure behavior, but it left the documented, supported way to run the
Inspector with no secret persistence whatsoever.

Adds the two missing implementations and, more importantly, the policy
that picks one and the surfaces that say which was picked.

- `FileSecretStore` — one `0600` JSON document at
  `~/.mcp-inspector/secrets.json`, encrypted with AES-256-GCM whenever
  `MCP_INSPECTOR_SECRET_KEY` is set (scrypt, per-file random salt). The
  whole map is encrypted as a unit rather than value-by-value so the
  account names — `${serverId}:${field}` — are hidden too; a per-value
  scheme would leave a readable index of which servers you hold a client
  secret for. A file that can no longer be decrypted reads as empty
  (matching the interface's read tolerance) but *refuses to be written*,
  because replacing a file of still-valid secrets to satisfy an additive
  request destroys data.

- `secret-store-selection.ts` — the policy.
  `MCP_INSPECTOR_SECRET_STORE=keyring|file|memory` wins outright;
  otherwise probe the keychain and, if unreachable, fall back loudly. The
  fallback is `memory` in a container whose secrets directory is not on a
  mount, and `file` otherwise — so mounting the volume the README already
  recommends for the catalog flips the same run to durable storage with
  no configuration, and an unmounted container gets the honest answer
  rather than a file `--rm` will discard. Cached per process so the
  banner, `/api/config`, and the store doing the writing cannot disagree.

- Automatic, but never silent. The downgrade prints at startup, rides
  `GET /api/config`, and is named in a permanent 32px footer at the
  bottom of both dialogs that accept a secret. A startup banner is seen
  once by whoever started the process; a toast is seen once; a
  dismissible banner is the thing a user dismisses before doing the work
  it describes. The plaintext and memory cases render their caveat inline
  in a warning tone — a warning you must hover to discover is not one.

- `SecretStoreUnavailableError` is now the base every store's `set`
  throws, so the routes translate one condition into a 503 instead of
  matching `KeychainUnavailableError` by name.

Docs: the container section of the root README gains a table of which
store you get and how to make secrets survive, plus the
`MCP_INSPECTOR_SECRET_KEY` upgrade/mismatch rules.

Tests: the existing interface contract block is extracted to
`secretStoreContract.ts` and run against all three implementations, so
none can drift on the availability contract. `FileSecretStore` is tested
against a real temp filesystem — mode, cross-instance round-trip, that
the ciphertext does not contain the plaintext, the read-modify-write
race, and every refusal path. Full `npm run ci` passes, per-file gate
included.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-22 12:06:31 -04:00
Cliff Hall
5dd038eb21
Merge pull request #2041 from modelcontextprotocol/v2/fix/2001-duplicate-tool-selection
fix(web): key tool selection by row identity so duplicate tool names are individually inspectable
2026-08-17 08:19:42 -04:00
Cliff Hall
f8d8c77783
Merge pull request #2035 from modelcontextprotocol/v2/fix/1919-rfc6570-uri-template-expansion
fix(web): expand resource templates per RFC 6570
2026-08-17 08:17:54 -04:00
cliffhall
05bbfe5074 fix: read the completions map by own property, not through the prototype
Addresses Copilot's round-17 review on #2035. A real crash, and a class the
earlier prototype work missed rather than a narrower version of it.

`toString`, `constructor` and `__proto__` are valid RFC 6570 variable names,
and `completions` starts as `{}`. So for such a name:

  completions["toString"] ?? []   =>  the prototype's FUNCTION

`??` catches only null and undefined, so that function went to Mantine's
Autocomplete as its `data`, and the field crashed on first render with
`TypeError: data.map is not a function` -- reproduced by reverting the fix
under the new test.

The earlier rounds fixed this for the *values* map, which is seeded with
every declared variable and so always has the key as an own property. The
completions map is the one name-keyed map this component reads WITHOUT
having seeded it, which is what made it the surviving instance. Both reads
now go through `Object.hasOwn` -- the render, and the stale-dropdown check
that clears a variable's options on the next keystroke.

Only the autocomplete branch could reach it, so the regression drives that
branch: completions supported, a `{toString}` template, type and submit.

npm run ci passes.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-17 01:25:58 -04:00
cliffhall
1c595e96ee fix: dedupe a repeated name in a group, and name every unmet requirement
Addresses Copilot's round-13 review on #2035. Two suppressed comments, both
real, both in the required-group work from round 7 rather than in the recent
preview rework.

1. `{a,a}` is ONE requirement named twice, but `requiredGroups` stored it as
   a two-name group, so everything downstream read it as "either of these
   will do". The TUI was left with a form it could not submit: its
   `length === 1` test marked `a` optional while ResourceTestModal's guard
   still refused a blank. The web panel offered the useless hint
   "Any one of: a, a". Names are now deduplicated within the expression --
   expansion still emits both occurrences (`x://{a,a}` -> `x://1,1`), which
   RFC 6570 requires.

2. The per-field hint used `find`, so a variable in several shared groups
   advertised only the first. With `{a,b}{b,c}{a,c}`, filling `b` satisfies
   the first two and every visible hint then looks met while Read Resource
   stays disabled on the unmet `{a,c}` -- a requirement with nothing on
   screen pointing at it.

   Fields now hint every shared group they sit in. That alone is not enough,
   because no per-field hint can say WHICH group is still outstanding, so
   the form states it directly: "Still needed: a or c", built from the same
   `unmetRequiredGroups` the submit gate uses, so the message and the button
   cannot disagree. `hasRequiredValues` is no longer called here -- the
   panel derives both from the one list.

npm run ci passes.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-17 00:33:52 -04:00
cliffhall
ab40fb621a fix(web): key tool selection by row identity, not name
#1961 keyed the sidebar's React children by source position, but everything
downstream still identified a tool by `tool.name`. With a `tools/list` that
repeats a name, both copies highlighted at once, the click guard made the
other copy a no-op, and `tools.find((t) => t.name === …)` always resolved to
the first — so a later copy rendered but could never be opened.

Thread the row key through selection instead:

- `utils/toolUtils.ts` now owns `toolRowKey` (moved out of ToolControls) and
  adds `findToolByRowKey`, which compares computed keys rather than parsing
  one so the two can't drift.
- `ToolControls`: `selectedName` → `selectedKey`; the highlight and the click
  guard compare keys, and `onSelectTool` emits the row key.
- `ToolsScreen`: `ToolsUiState.selectedToolName` → `selectedToolKey`, with
  both lookups going through `findToolByRowKey`. Renamed through
  `screenUiState.ts` and `App.tsx`'s `onToolsUiChange`.

`onCallTool` still sends `selectedTool.name` — the duplicated name is the
genuine wire identity; only the UI identity needed to be unique.

Also prefixes the excluded (SEP-2243) rows' keys: they render into the same
`Stack` as the list rows but index within their own list, so an excluded tool
sharing a name and index with a listed one collided in the key space.

Closes #2001

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-17 00:02:13 -04:00
Cliff Hall
4d7405bea0
Merge branch 'v2/main' into v2/feat/1915-manual-server-headers 2026-08-16 23:21:17 -04:00
Cliff Hall
1e0fd88956
Merge pull request #2034 from modelcontextprotocol/v2/fix/1860-mrtr-results-panel
fix(web): name an empty tool result instead of "No results yet" (#1860)
2026-08-16 23:20:29 -04:00
Cliff Hall
63250a6c52
Merge branch 'v2/main' into v2/fix/1919-rfc6570-uri-template-expansion 2026-08-16 23:16:27 -04:00
cliffhall
6acaff70ca fix: honor a defined-but-empty value, and announce the expansion error
Addresses Copilot's round-8 review on #2035 (one inline comment, one
suppressed). Both real.

1. RFC 6570 distinguishes an UNDEFINED variable, which omits its whole
   expression, from one defined as the empty string, which expands. The
   expander was calling `definedValues` on the way in, collapsing the two --
   so `x{?q}` with `{ q: "" }` gave `x` instead of `x?q=`, and there was no
   way for any caller, `readResourceFromTemplate` included, to request
   either that or `x;q`. Key presence is now honored, including §3.2.7's
   rule that the matrix operator drops the `=` for an empty value (`x{;q}`
   -> `x;q`, while `?`/`&` keep it).

   Dropping blanks is a FORM concern, so it moved to the two form
   boundaries: the web panel seeds every declared variable with "" and the
   TUI's ink-form returns "" for every untouched field, so neither can tell
   "never touched" from "deliberately empty" -- but that is a fact about a
   text input, not about the template, and it has no business deciding what
   a template means for every other caller.

   Six unit tests and one integration test encoded the old collapse and now
   assert the corrected meaning. The prototype-collision cases get stronger
   rather than weaker: a blank `{?toString}` expands to `?toString=` -- its
   OWN empty value -- where the original bug expanded the inherited
   function's body.

2. The expansion error is now `role="alert"`. It can appear while typing (a
   pasted value that cannot be encoded), and plain text is not announced, so
   a screen-reader user met a disabled Read Resource with no stated reason.

npm run ci passes.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 23:08:30 -04:00
cliffhall
4dd8ed4498 revert(web): drop custom headers from the manual add form (#1915)
Server Settings already has a Custom Headers editor, so adding one to the
manual add form created a second place to edit the same field. The reporter
had also conditionally withdrawn #1915 — "editing that information from the
server settings dialog is sufficient" once #1848 closed, which it has.

Reverts the add-form editor, the shared KeyValueRows element, the optional
`settings` argument on addServer / updateServer, and the App-level merge
helper. What remains are two defects found while working in
ServerSettingsForm, which this PR now closes instead (#2040): the Custom
Headers hint misstating OAuth precedence, and the key/value rows' missing
accessible names.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 22:57:34 -04:00
Cliff Hall
4e4aa49db1
Merge pull request #2037 from modelcontextprotocol/v2/feat/1906-auth-token-url-overrides
feat(auth): Auth URL and Token URL overrides in Server Settings
2026-08-16 22:49:19 -04:00
Cliff Hall
405d0f4d0d
Merge pull request #2039 from modelcontextprotocol/v2/chore/1959-no-floating-promises
chore(lint): enable @typescript-eslint/no-floating-promises in all five ESLint scopes
2026-08-16 22:35:52 -04:00
cliffhall
1ad3edd96d fix: refuse a template that cannot expand, instead of reading the raw one
Ports the two behaviors PR #2033 (the parallel attempt at #1919, now closed
as a duplicate) got right and this branch did not.

1. An expression declaring no variable is a malformed template, not one
   with a member to skip. RFC 6570 requires at least one varspec per
   expression and admits no empty member, so `{}`, `{,}`, `{a,}`, `{?}`
   and `{*}` (an explode modifier is not a name) now make the template
   invalid. Skipping them was the more dangerous reading: `x://{}`
   expanded to `x://` while the form rendered no inputs, so its
   "everything required is filled" check was vacuously true and it
   submitted a URI that is not the template the server published.

2. The read is withheld when expansion fails. `expandUriTemplate`'s
   raw-template fallback exists for the preview, which runs during render
   -- but the submit path used it too, so an invalid template was read
   with its braces intact and the server answered with a confusing "not
   found" for a defect that is not the user's. `tryExpandUriTemplate`
   returns the URI or the reason as a value the caller cannot mistake for
   one; the panel gates Read Resource on it and prints the reason.
   This also covers a value that cannot be encoded -- an unpaired
   surrogate has no UTF-8 encoding, so `encodeURIComponent` throws
   `URIError` on it, and a text input can hold one via paste.

`requiredGroups` now skips an expression naming no variable: an empty
group can never be satisfied, so it would gate the form a second time on
a condition nothing can meet, and the "any one of" hint built from it
would name no fields. The accurate reason is the malformed template,
which the expansion gate reports.

npm run ci passes.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 22:32:27 -04:00
cliffhall
51d35d864b fix(web): correct the OAuth header hint, keep utils off components (#1915)
Round-4 review follow-ups on #2038.

The Custom Headers hint claimed a custom `Authorization` value is "ignored"
once OAuth is configured. Verified against the installed
@modelcontextprotocol/client: both SSE and streamable-HTTP `_commonHeaders()`
set the bearer first and then spread `requestInit.headers`, so a custom
value *overrides* the OAuth token. The hint told users the opposite of what
would happen, and could have them silently break their own auth. Corrected in
both places — the modal's new hint and the pre-existing one in
ServerSettingsForm, which carried the same wrong claim.

`utils/serverSettingsPatch.ts` imported both its shared types from
components, reversing the one-way `components -> utils` direction AGENTS.md
sets. `KeyValuePair` moves to `utils/keyValuePairs.ts` (KeyValueRows
re-exports it), and the mode is spelled as a literal union — still checked,
since `ServerConfigModalMode` must stay assignable to it at the call site.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 22:14:40 -04:00
cliffhall
d60a5c713d fix(web): only write settings on a real header edit; label rows by position (#1915)
Round-3 review follow-ups on #2038.

`buildHeaderSettingsPatch` treated the mere presence of stored headers as a
change, so saving an id or URL edit re-sent the modal's settings snapshot —
taken when it opened — and could overwrite a metadata or OAuth change made
in the settings form since. It now compares the submitted headers against
the stored ones and omits `settings` when they match, which is what makes
the PUT route preserve the node. Order counts as a difference: it is what
the form round-trips and what the user sees.

Row labels carried the key alone, so two rows sharing a key — mid-edit, or a
duplicate a server persisted — gave both rows' controls identical accessible
names, the thing the labelling exists to prevent. The row number is now
always part of the label rather than a blank-key fallback.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 21:57:09 -04:00
cliffhall
e5c20608bf fix(auth): never read a stream, and say what the issuer override does not do
Two review findings on the fetch wrapper:

The content-type test was a substring match for "json", which also
matches `application/x-ndjson` — how the streamable-HTTP transport can
serve its long-lived server-push channel (`isLongLivedStreamResponse`).
Awaiting `.json()` on a clone of an unbounded stream never resolves, so
the MCP connection would hang for as long as an override was configured.
It now matches the media type exactly (`application/json` or a `+json`
suffix), with a regression test driven by a stream that never closes.

The overrides also leave `issuer` as discovery returned it, so pointing
one at an authorization server that advertises a different issuer is
rejected on callback by the RFC 9207 / SEP-2352 mix-up defense. That
check is deliberately not weakened; the limit is now stated on the
module, in the field description, and in the configuration guide.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 21:52:09 -04:00
cliffhall
ed99617c53 fix(web): lock header rows while submitting, name their clear buttons (#1915)
Round-2 review follow-ups on #2038, all three from the suppressed set.

The header rows stayed editable while a save was in flight, unlike the rest
of the modal — a slow request let a user edit a row whose value had already
been captured, and the modal then closed having persisted the earlier one.
`KeyValueRows` takes a `disabled` prop and the modal passes `submitting`.

Each row's clear buttons were still named the bare "Clear", so a screen
reader saw six indistinguishable buttons across three rows. They now name
the field they empty ("Clear header name, Cookie").

The App-level headers-into-settings merge — the seam that distinguishes an
edit from a clone, and where the credential copy lived — moves into
`utils/serverSettingsPatch.ts` with its own tests. App.tsx is outside the
coverage gate, so inline it could not be covered at all.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 21:40:07 -04:00
cliffhall
05698647f8 fix(auth): never apply endpoint overrides on the enterprise-managed leg
The overrides are per-server configuration for the *resource* server's
authorization server, but the fetch wrapper that applies them is shared
with the enterprise-managed (EMA) flow, whose IdP OIDC discovery runs
through the same fetch and satisfies the metadata predicate. An
authorization override could therefore redirect the IdP login to the
resource AS, and a token override could send the IdP code or refresh
token there.

OAuthManager.getEndpointOverrides() now returns nothing when the server
is enterprise-managed — the same boundary redirectToExternalAuthorization
draws for the custom authorization parameters (#2018) — with a regression
test, the note surfaced on both form fields, and the rule documented.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 21:13:51 -04:00
cliffhall
935113d1e0 fix: encode per RFC 3986, and derive the TUI form from the shared parser
Addresses Copilot's round-4 review on #2035 — again reported as "no new
comments" while carrying three suppressed ones. All three reproduced.

1. The TUI form still named its fields from the SDK. `uriTemplateToForm`
   read `UriTemplate.variableNames`, which mangles a name: `{;id}` yields
   ";id" and `{id:3}` yields "id:3". The form therefore submitted
   `{ ";id": "7" }` while the shared expander looked up `id`, found
   nothing, and dropped the expression — the value vanished silently.

   This is the finding that mattered most, because it falsified the claim
   this change is built on. Moving the expander into core only makes the
   clients agree if each client's FORM derives its names from the same
   parser: a form submits under the names it rendered. The TUI now reads
   `templateVariables`, and the SDK template is constructed only to
   validate, preserving the existing malformed-template diagnostic.

   Its `required` flag comes from `requiredGroups`, and only a variable
   that is the sole member of a non-omittable expression is marked: ink-
   form cannot express "any one of these", so marking every member of
   `{a,b}` required would refuse input the expander accepts.

2. `encodeURIComponent` is not RFC 3986's unreserved set — it leaves the
   sub-delims !'()* bare, which RFC 6570 requires encoded for every
   operator except + and #.

   Fixing that settled a design question left open in the previous round.
   With two encoders, the SAME value encoded differently depending on
   whether its expression happened to carry a modifier, since only the
   modifier pushed it onto our path. So delegation is gone entirely: one
   expander, one set of rules. The SDK's `UriTemplate` is still
   constructed, but only to validate a template.

3. The "Any one of: a, b" hint could contradict the disabled submit
   button. A name can sit in a singleton required group AND a shared one
   (`x://{a}/{a,b}`), where the singleton demands that exact field. The
   hint is suppressed in that case.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 21:04:20 -04:00
cliffhall
519ecf49ee chore(lint): enable no-floating-promises in all five ESLint scopes
A floated promise is invisible at review time — the call reads like an
awaited one minus four characters — and the unhandled rejection it
produces surfaces in a different test, in a different file, as a stack
pointing at SDK internals. In #1947 two un-held `callTool` calls made
`npm run ci` unpassable and took a full investigation to attribute; the
fix was two lines. `@typescript-eslint/no-floating-promises` catches the
class outright, so enable it at `error` everywhere.

The rule is type-aware and `tseslint.configs.recommended` is not, so each
scope's config gains a parser project. The four clients name their own
tsconfig projects (both of them — `src` and `__tests__`/`server` live in
different ones). The root scope has no tsconfig at all, so add
`tsconfig.lint.json`: a lint-only project covering `core/**`,
`test-servers/src/**`, and `vitest.shared.mts`, emitting nothing and
gating nothing. It sets `moduleResolution: bundler` deliberately — under
NodeNext `core/`'s extensionless imports fail to resolve, every import
degrades to `any`, and the rule silently stops seeing promises at all.

Measured surface, and the fixes:

- core (2) — `stream.close()` in two Hono `onAbort` listeners. Hono
  invokes subscribers with a bare `subscriber()`, so a promise returned
  from the listener is floated one layer up; `closeAbortedStream` owns
  the rejection where it can actually be owned.
- tui (5) — `handleDisconnect` had no catch of its own and its only
  caller is a key handler that cannot await, so a failing disconnect was
  a live unhandled rejection; it now surfaces the message the way
  `handleConnect` does. The rest are `void` at callers that genuinely
  cannot await, over callees that already own their failures.
- web (92) — 83 are Storybook `expect(...)`, which is instrumented and
  returns a promise, now awaited (`scrollAreaStoryAssertions` is async
  for the same reason). Two tests were asserting against a provider call
  they never awaited. `open(url)` in both web servers now warns instead
  of escaping a synchronous callback.
- cli, launcher — already clean.

Type-aware linting costs time: `clients/web`'s `eslint .` goes from ~8s
to ~19s, inside `validate`. Narrowing the loaded projects is the lever if
that needs reducing later; dropping the rule is not.

Closes #1959

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 20:57:32 -04:00
cliffhall
9aab945964 feat(web): custom headers on the manual server-config form (#1915)
Adding a server by hand offered no way to set custom HTTP headers, so the
only route to a cookie or a routing header was importing a config file.
The manual "Add server" form now carries a Custom Headers key/value editor
for the sse / streamable-http transports, pre-populated when editing or
cloning and submitted alongside the config.

Headers are not part of `MCPServerConfig` — they live on the entry's
`settings` — so they travel as `onSubmit`'s third argument rather than
folded into the config, and `addServer` / `updateServer` gained an optional
`settings` parameter to carry them to the backend (`POST /api/servers`
already accepted one). `updateServer`'s omission semantics are unchanged:
with no settings passed, the route still preserves the node on disk.

`KeyValueRows` moves out of ServerSettingsForm into a shared element so the
two editors cannot drift, and each row's controls gain a row-scoped
`aria-label` ("header value, Cookie", "Remove header, Cookie") — previously
every remove button announced only "X", indistinguishable across rows.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 20:57:02 -04:00
cliffhall
364d8c9dbc feat(auth): per-server authorization and token URL overrides
Adds two optional per-server fields — `oauth.authorizationUrl` and
`oauth.tokenUrl` — that override the endpoints authorization-server
metadata discovery resolved, so a server can be pointed at a development
or staging authorization server without changing what it advertises.

SDK v2 routes both endpoints through the discovered metadata document and
neither through OAuthClientProvider, so the override is applied by
wrapping the client's base fetch and patching the metadata document in
flight (core/auth/endpointOverrides.ts). Wrapping the base fetch — rather
than only the auth fetch — also covers the discovery the SDK runs from
inside the transport on the 401/refresh path.

The fields round-trip through mcp.json, the /api/servers routes, the
runner (CLI/TUI), and the Server Settings → Authorization panel, where a
value that is not an absolute http(s) URL is flagged inline; at runtime
such a value is dropped with a single warning rather than failing the
connection.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 20:36:24 -04:00
cliffhall
1d29e4e71c Merge remote-tracking branch 'origin/v2/fix/1919-rfc6570-uri-template-expansion' into v2/fix/1919-rfc6570-uri-template-expansion 2026-08-16 19:35:48 -04:00
cliffhall
e7d1246c86 fix(core): scope requiredness to expressions, and encode + / # per RFC 6570
Addresses Copilot's round-3 review on #2035. It again reported "no new
comments" while carrying two suppressed ones; both reproduced.

1. Requiredness could not live on a variable at all. Deduplication kept the
   first occurrence's group, so in `x{?a}{?b}{a,b}` both names ended up
   required with singleton groups and the form demanded both -- while the
   SDK expands that template with only `a` to "x?a=11". Widening the stored
   group would not have been enough either: in `{a,b}{a,c}`, filling `b` and
   `c` satisfies both expressions, which no per-variable flag can express.

   So requiredness is now returned per expression by `requiredGroups`, and
   `hasRequiredValues` asks that each group be satisfied by any one of its
   names. `TemplateVariable.groupNames` is gone rather than left as a field
   that quietly means something narrower than it reads; `required` remains,
   documented as driving the "Optional" marker and nothing else.

2. `encodeURI` is not the allow-reserved encoder `+` and `#` call for. It
   escapes `[` and `]`, which are reserved and must survive, and it escapes
   `%`, so an already-encoded value is double-encoded. Measured:
   "[::1]" -> "%5B::1%5D" and "%2F" -> "%252F". Both corrupt the URI rather
   than merely over-escaping it -- an IPv6 literal or a pre-encoded path
   reaches the server altered, which is the same class of defect #1919 is
   about.

   Added an RFC 6570 3.2.1 encoder that preserves reserved characters and
   existing pct-triplets, splitting on `%XX` so a lone `%` is still encoded
   to `%25`, and matching with the `u` flag so an astral character is
   encoded whole. `+` and `#` expressions are now taken over even for a
   single name, so both expansion paths agree on what those operators mean.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 19:35:33 -04:00
Cliff Hall
539475ca6a
Merge branch 'v2/main' into v2/fix/1919-rfc6570-uri-template-expansion 2026-08-16 19:31:24 -04:00
Cliff Hall
d0c38b6bf7
Merge branch 'v2/main' into v2/fix/1860-mrtr-results-panel 2026-08-16 19:21:37 -04:00
cliffhall
25c3ad272e fix(core): support ; and :length, and scope requiredness to the expression
Addresses Copilot's round-2 review on #2035. It reported "no new comments"
but carried three *suppressed* ones; all three reproduced against the
pinned SDK.

1. The `;` path-parameter operator is absent from the SDK's operator list,
   so `{;id}` parsed as a variable literally named ";id" and expanded to
   nothing. Added the operator and its named expansion (`;a=1;b=2`).

2. An RFC 6570 prefix modifier was folded into the variable name: `{id:3}`
   yielded a variable called "id:3" and expanded to nothing. Varspecs are
   now parsed properly and the value truncated before encoding. Truncation
   is by code point, since `String.prototype.slice` counts UTF-16 units and
   would split an astral character into a lone surrogate.

   For both of these the wrong URI is the lesser problem: a form has to
   *name* the variables it asks the user to fill, so the panel was
   rendering fields labelled `;id` and `id:3` that nobody could use.

3. Requiredness was applied per variable, but it is a property of the
   *expression*: RFC 6570 drops undefined names from a multi-name
   expression, so `{a,b}` with only `a` filled expands to `a`'s value --
   the SDK does this too. The panel was refusing input the expander would
   have accepted. `hasRequiredValues` now encodes "any one name in a
   required group suffices", and such a field reads "Any one of: a, b"
   rather than falsely claiming each is mandatory.

Two structural consequences, each pinned by a test:

- Takeover is now per TEMPLATE rather than per expression. Splicing
  corrected fragments into a template the SDK re-expands would leave its
  cross-expression `?`-to-`&` rewrite blind to the fragments already
  resolved.

- Expansion is split into a strict variant that throws and a lenient one
  that returns the raw template. `readResourceFromTemplate` wraps the
  thrown error with the template name -- three pre-existing integration
  tests assert that -- while the form must not throw on a server-supplied
  template, since that would take out the panel on render. The strict
  variant constructs the SDK template unconditionally, because that
  construction is what validates syntax: otherwise `x://{;a}{b,c` would
  take the own-expansion path and its unclosed tail would pass as literal
  text with nothing objecting.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 19:17:05 -04:00
cliffhall
83658db2dd fix(web): expand resource templates per RFC 6570
The Resources screen discovered and substituted template variables with a
bare `/\{(\w+)\}/g` regex, which is wrong two ways: it cannot see an
expression carrying an operator, so `foobar://events{?topic}` rendered no
input at all; and it splices the raw value in, so a `/`, `?`, `#`, `%`,
space or non-ASCII character in a simple `{topic}` landed unencoded and
changed the URI's structure -- `foo/bar` produced an extra path segment
that a conforming matcher rejects with `-32602 Resource not found`.

Delegate expansion to the SDK's `UriTemplate`, the same implementation
`InspectorClient.readResourceFromTemplate` (and so the TUI) already
expands through, so the two clients cannot disagree about what a template
means. The new `utils/uriTemplate` supplies only what that class does
not: which variables to render an input for, which of them a read cannot
proceed without, and a partially-expanded preview.

Required-ness follows the operator. Under `?`, `&`, `.` or `/` the whole
expression is omitted when the variable is undefined, so those fields are
marked Optional and reading with them blank is a legitimate request for
the unfiltered resource; under `""`, `+` or `#` the variable sits mid-URI,
so it stays required. Blank fields are dropped before expanding so an
untouched optional field reads as undefined rather than as the empty
string, which would expand to a valueless `?topic=`.

Adds the `rfc6570_templates` preset and a `rfc6570-templates-http.json`
showcase server serving the two templates from the issue.

Closes #1919

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 18:31:35 -04:00
cliffhall
b3aedf62cd fix(web): name an empty tool result instead of "No results yet" (#1860)
The Tools screen mounts the Results panel only once a call has produced a
result, but the panel's zero-content branch rendered "No results yet" — the
same wording it would use before anything had run. An empty `content` array
with no `structuredContent` is a legal `CallToolResult`, so a call that had
plainly completed reported itself as a call that never happened.

That reads worst after a multi-round-trip (MRTR) sequence, which is how it was
reported: the user answers one or more embedded elicitations, watches the
Protocol tab group the exchange and mark it COMPLETE, and is then told there
are no results yet. Nothing was lost — the result was stored and rendered; the
panel simply had no wording for "completed, returned nothing".

The panel now renders an "Empty result" alert saying the call completed and
returned no content. This is the remaining half of the same gap #1908 closed
for `structuredContent`-only results.

test-servers: new `mrtr_empty` preset (`createMrtrEmptyResultTool`) — one
elicitation round, then a complete result with `content: []` and no
`structuredContent` — added to `mrtr-showcase-http.json` so the shape is
reproducible by hand. README documents it.

Signed-off-by: Cliff Hall <cliff@futurescale.com>
Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 18:31:01 -04:00
cliffhall
0b54cdc4e1 test(web): use the object shape for the legacy tasks capability
`ServerTasksCapability`'s `list`/`cancel` are objects, not booleans, so
the legacy-tasks fixture failed `tsc -b` in CI. A stale incremental
build cache hid it locally.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 18:25:49 -04:00
cliffhall
73913ef09f fix(web): read modern tasks support from the extension map
SEP-2663 moved task support from `capabilities.tasks` to the negotiated
`capabilities.extensions["io.modelcontextprotocol/tasks"]`, but the
Connection Info modal's capability grid tested only for the top-level
key. A modern server that advertised the extension in `server/discover`
therefore showed "Tasks ✗" while the very same extension id was listed
under "Server Extensions" two sections below.

Server capability rows now fall back to an extension id for the
capabilities the modern era expresses that way (tasks is the only one
today), gated on the negotiated era so a legacy connection is still
judged purely on its `initialize` capabilities. Keyed the same way
`InspectorClient.isTasksExtensionNegotiated()` gates the Tasks tab, so
the checkmark and the tab can't disagree.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 18:11:29 -04:00
cliffhall
a945fb71c6 docs: correct how a null reaches the number field
Copilot review: the comments offered "a nullable number the user cleared" as a
way to get an explicit `null` into this field. Clearing the box reports
`undefined` — `toNumericValue("")` says so, and an existing test pins it — so
the only way `null` arrives is from parent state: a value received from the
server, restored from a deep link, or written by a caller for a nullable
schema. Say that in all three places instead.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 01:08:40 -04:00
cliffhall
27fe15976f fix(web): admit null in the number field's value and default prop types
Copilot review: a nullable number schema really does produce `null` for both
the raw value and the schema default, but the props declared only
`number | undefined` and the call site cast the null away. The runtime already
handled it — the initializer's `?? ""` exists for exactly that — so the types
were the part that was wrong, and a cast hiding it is how a future null bug
goes unseen by the compiler.

Widen both to `number | null | undefined` and drop the narrowing casts, keeping
the distinction the initializer encodes: `undefined` takes the default, `null`
is a value and renders as an empty box.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 01:00:48 -04:00
cliffhall
d3b70a6329 fix(web): keep an explicit null out of the number field's default fallback
Copilot review: seeding with `value ?? defaultValue` also substitutes the
default when the raw value is an explicit `null` — a nullable number field the
user cleared, or one the server sent — where `resolveValue` previously kept the
null and the box rendered empty. A nullable schema with a non-null default
would have opened showing that default over a real value.

Test the `undefined` case explicitly, as `SchemaJsonField` already does, and
pin it: the new test fails with `'30'` where `''` belongs.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 00:53:16 -04:00
cliffhall
c6edc13a9f docs: mark the JSON half of #2026 latent, not reproducible today
Copilot review: the code and test comments still said a defaulted array or
object argument *was* uneditable. It would be, but not through today's seeding
path — `collectSchemaDefaults` assigns `fieldSchema.default` itself, so the
substitution returns the same reference and the re-sync never fires. It needs a
structurally-equal but distinct value object, which parsed wire/deep-link
values and rebuilt nested-object defaults produce, and which these tests
construct. The number field has no such protection and did revert in the app.

State the boundary in all three places, and stop claiming the distinct-object
seed is how the Tools tab seeds the field, which it is not.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 00:44:53 -04:00
cliffhall
a24413af6f fix(web): stop a schema default from reverting the edit in progress (#2026)
A field whose schema declares a `default` could not be edited. Unsendable
draft text reports `undefined` by design — an inspector must not report a value
it cannot send — and `resolveValue` turned that straight back into the default.
That is a real change from the previous value, so the draft/value re-sync
rewrote the box to the default and the keystroke was lost. Almost every edit
passes through an unsendable state, which left a defaulted array or object
argument uneditable in the JSON editor, and a defaulted number field unable to
be emptied.

Hand the two draft-holding fields the raw value and the schema default
separately, and compare only against the raw one. The default now seeds what
the field opens with, which is what a `default` means, rather than being
re-imposed while the user types. Every other field keeps resolving through
`resolveValue` unchanged.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-16 00:27:56 -04:00
cliffhall
325ac536cd test(web): resolve the null defaults from the schema, not a seeded value
Copilot review: seeding `{ b: null }` / `{ cfg: null }` meant the schema's
`default: null` was never resolved, so a regression that dropped null defaults
would have left both #1885 tests green while claiming to pin that path. Render
the harness unseeded instead, which is also how the reporter's form arrived.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-15 23:59:31 -04:00
cliffhall
4676af4e39 test(web): pin the JSON editor's reported escaping reproductions
Three issues report one defect: the schema form's JSON fallback re-escaping
the text being typed. #1853 saw it while typing an array, #1856 on the
Backspace that first makes a valid array invalid, and #1885 on a nullable
parameter whose default `null` had to be edited in place.

The mechanism — unparseable draft text stored back as the field's value, which
the next controlled render re-JSON.stringify'd — was removed by the draft/value
split in SchemaJsonField and the nullable-union collapse (#1928, #2007, #2020).
Those fixes were made for differently-framed issues, so nothing pinned the
flows these three reports actually describe.

Verified against the pre-fix commit: four of the five new tests fail there with
the reported corruption, including '"\"\"a"' for the caret-outside-the-quotes
case and the compounding backslash cascade for the typed array.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-15 23:51:21 -04:00