Fix/bb 63 swarm server readiness - #4503
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Opening Swarms → New with a server in the project but none attached to the setup showed an amber warning whose remedy was "Connect a server and turn on Auto-connect on the Servers tab" — next to a picker plainly listing the server the user had. Four situations shared that one sentence and it was right for only one of them. They now say four different things, because each needs a different fix: pick the server you already have, connect your first one, expose a local one over HTTPS, or replace servers that are attached and cannot run. Naming only the reachable ones matters — offering a stdio or loopback server would have walked the user into the next failure. The band is calmer too. A calm sentence inside an amber box with an alert triangle still reads as an alarm, so the notice takes a tone: nothing attached yet renders quietly, attached-and-unusable keeps the warning. `warning` stays the default, leaving the swarm sandbox block and the evals suite pin untouched. An empty project gets the one button that resolves it, since there is nothing on that screen to pick and leaving is unavoidable. The draft survives the trip. Server groups arrive answered: with three or fewer servers the form opens with them ticked, Create live, and a name taken from the contents rather than `group 1`. Click-away no longer commits a form the user only looked at — preselection had made that reachable. The launch gate is unchanged. A setup that resolves to zero servers is still blocked before it writes personas and goals. Refs: BB-63 Refs: BB-3 (partial — naming only; renaming still needs a mutation)
Follow-up to 88caf82, from reviewing it. The project catalog arrives on its own query, and the hook collapsed "still loading" into "empty" with `servers ?? []`. Those lead to opposite advice, so a project that does have servers rendered the empty-project copy and its Connect button on first paint, then swapped to "Your project has draw" once the query answered. A user who clicked in that window was navigated away to connect a server they already had. The race predates this work; giving the two cases different copy is what made it visible. `poolSize` is now `number | null`, and an unknown pool says only what holds in every case and offers no shortcut. Three smaller ones from the same pass: - Capping the server list at two names made three of them longer, not shorter: "a, b and 1 more" against "a, b and c". The cap starts at four. - The new-group form preselected servers a cloud run cannot reach, so accepting what it offered produced the amber warning the rest of this work exists to avoid. It now applies the same reachability filter the readiness check already used, which means a local-only project opens with nothing ticked — as it did before any of this. - The notice's action and icon derive their test ids from the notice's own id. Two of these bands already share one screen. Left alone deliberately: the group name re-derives when the group list changes, which can rename the field mid-edit. Freezing it would let the user submit a name that has since been taken, and the churn stops the moment they type. Recorded in a comment so the next review does not re-raise it. Refs: BB-63
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Included review availability: Your plan provides up to 8 included reviews per hour; 6 remain after this review. WalkthroughThe change adds reachability-aware cloud server readiness data and differentiated guidance copy. Notices now support guidance or warning tones and optional navigation actions. Swarm creation uses the new copy and identifies missing server selection. Server-group creation now preselects reachable servers in small pools, derives collision-safe names, preserves edited names, and avoids untouched click-away commits. Tests cover readiness states, notice rendering, swarm flow, naming, draft selection, and picker interactions. Merge Risk: ⚪ Minimal · up to The PR improves server-readiness guidance and new-group defaults without changing launch gating or system boundaries; no actionable merge-blocking risk remains after normal checks and review. Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
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Inline comments:
In
`@mcpjam-inspector/client/src/components/hosts/__tests__/ServerGroupPicker.create.test.tsx`:
- Line 57: Update both handleCreate mocks used by ServerGroupPicker tests to
resolve an object containing the _id field expected by handleCreate, then assert
the completed onChange call receives "new-id" as the attachment ID.
In
`@mcpjam-inspector/client/src/components/swarms/__tests__/SwarmsTab.createFlow.test.tsx`:
- Around line 569-571: Update the test around the Connect a server button to
click it and assert navigation reaches the Servers route, rather than only
checking visibility. Preserve the existing role/name lookup and verify the
resulting route so the action handler and destination are both exercised.
Apply the same fix in
`@mcpjam-inspector/client/src/components/computer/__tests__/CloudUnreachableNotice.test.tsx`
at line 52: Covers the empty optional-detail branch in the same notice behavior
test set.
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.changeset/bb-63-swarm-server-readiness.mdmcpjam-inspector/client/src/components/computer/CloudUnreachableNotice.tsxmcpjam-inspector/client/src/components/computer/__tests__/CloudUnreachableNotice.test.tsxmcpjam-inspector/client/src/components/environment-composer/__tests__/use-cloud-server-readiness.test.tsxmcpjam-inspector/client/src/components/environment-composer/use-cloud-server-readiness.tsmcpjam-inspector/client/src/components/hosts/ServerGroupPicker.tsxmcpjam-inspector/client/src/components/hosts/__tests__/ServerGroupPicker.create.test.tsxmcpjam-inspector/client/src/components/hosts/__tests__/server-group-name.test.tsmcpjam-inspector/client/src/components/hosts/server-group-name.tsmcpjam-inspector/client/src/components/swarms/__tests__/SwarmsTab.createFlow.test.tsxmcpjam-inspector/client/src/components/swarms/new-swarm-create-flow.tsxmcpjam-inspector/client/src/components/swarms/swarm-target-composer.tsxmcpjam-inspector/client/src/lib/__tests__/cloud-server-readiness.test.tsmcpjam-inspector/client/src/lib/cloud-server-readiness.ts
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…t fired From CodeRabbit on MCPJam#4503. The ServerGroupPicker mock resolved a bare string where `handleCreate` casts to `{ _id: string }` and calls `onChange(result._id, …)`. The click-away test passed while the selection was handed an undefined id. The mock now returns the row shape, and the test asserts the id reaches `onChange`. The empty-project action was only checked for visibility, which cannot catch the one way its route mapping breaks — `routePaths[route]` resolving to undefined. Clicking it and asserting the destination lives in swarm-target-composer, the layer that owns that mapping; SwarmsTab.createFlow mocks `useAppNavigate` and this path uses `navigateApp`, so it is unobservable there. Writing that turned up two problems in the composer's own fixture: a second `vi.mock` for app-navigation that silently won over the first, and a `routePaths` stub with no `servers` key. Both are now one mock with the key present, and removing the key fails the new test. Refs: BB-63
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Closes BB-63
What this changes
BB-63 reported two blocks on the Swarm create screen. Both came from the same place: a preflight check that could tell a setup was empty but not why, and so said the same thing however it got there.
Servers (0 picked), Create dead.assessCloudServerReadinessreportedno_serversfor four different situations anddescribeCloudServerBlockhad one sentence for all of them. It was correct for exactly one — an empty project. For the other three it prescribed work already done, or work that would fail the same way.The readiness result now carries what the project could offer:
attachable— catalog servers a cloud run can actually reach. Offering a stdio or loopback server here would walk the user into thelocal_onlyfailure on the next click, which is the trap the old copy set.poolSize: number | null—nullwhile the catalog query has not answered. The hook used to writeservers ?? [], collapsing "still loading" into "project is empty". Those prescribe opposite remedies, so a project that had servers rendered the empty-project copy and its Connect button on first paint, then swapped once the query landed. The race predates this work; giving the cases different copy is what made it visible.Copy is chosen from those two, most specific first: name the servers you have → connect your first one → expose a local one over HTTPS → say only what holds whilethe pool is unknown.
Tone is part of the fix, not a coat of paint. A calm sentence inside an amber box with an alert triangle still reads as an alarm, so
describeCloudServerBlockgrades it next to the copy: nothing attached yet is a step in setup and renders quietly; servers that are attached and cannot run keep the warning.warningstays the component default, so the swarm sandbox block and the evals suite pin are untouched.The group form arrives answered. With three or fewer reachable servers it opens with them ticked, Create live, and a name from the contents rather than
group 1(BB-3). Preselection made the click-away commit reachable without the user having touched anything, so that path is now gated on a real interaction — otherwise opening the form and clicking away created a group nobody asked for.Impact
Connect a server)New group form, project with one reachable server:
group 1Three-server list:
a, b and 1 more(15 chars) →a, b and c(10). The cap only pays for itself at four.Notes for reviewers
score run resume > stays silent when sessionStorage is unavailablefails on this branch and is not from this PR. It comes from #4500 and reproduces with these changes stashed. CI stays red until someone on that change looks at it.Conflict ahead.
BB-59_Swarm_update_Personas_page_and_UXhas committed a rename oflocal_only→unrunnable_serversincloud-server-readiness.ts, plus a rule change — one stdio member sinks the run. Theno_servershalf of this PR merges clean; that branch does not. Whoever lands second reconciles thelocal_onlybranch, and this PR'stone: "warning"line lives inside it.BB-160 rewrites
new-swarm-create-flow.tsxfor the 3-step designs. The one line this PR changes there — the disabled-Continue hint — goes with it. Paper's V2 frames carry no empty-state for this picker, so the copy here fills a gap rather than contradicting them; the V2 label ("Choose the clients and servers your users will interact with") reads as its lead-in.The launch gate is unchanged. A setup resolving to zero servers is still blocked before it writes personas and goals. That block exists because of a real
ENV_NO_SERVERSfailure (BB-36) and softening it would only move the failure later — the point of BB-63 is how it is said, not whether.One thing left alone deliberately. The group name re-derives when the group list changes, which can rename the field mid-edit. Freezing it would let the user submit a name taken since they opened the form, and the churn stops the moment they type. Recorded in a comment so the next review doesn't re-raise it.
local_only's detail still says "point the client at that URL" — the same jargon this PR removes next door. Out of BB-63's scope; flagged rather than fixed.Tests
164 across the directly affected files.
New —
server-group-name.test.ts(16),ServerGroupPicker.create.test.tsx(7),CloudUnreachableNotice.test.tsx(6). The picker file covers the wiring the pure module cannot: that the form actually asks for the derived state, and that click-away discards an untouched one.Extended —
cloud-server-readiness.test.ts15 → 31.Migrated —
use-cloud-server-readiness.test.tsx(2 assertions) andSwarmsTab.createFlow.test.tsx(1 test) to the new shape and copy.Verified they aren't decorative. Every fix was written test-first, and the whole change was then reverted with the tests kept: 24 fail against the pre-fix code, in 6 files. The six that survive are negative guards — they assert the absence of something new, or pin behaviour deliberately kept, so they cannot fail against a baseline that lacks the field. One test that passed both ways was deleted rather than kept: it asserted
/connect/ion copy that said "Connect a server" before and after, and the case it covered is already pinned by an assertion on the exact action object.Pre-existing tests changed deliberately, not loosened: three
assessCloudServerReadinessassertions gained the new fields; the empty-case copy assertion moved fromdetailtoaction.labelbecause the imperative moved to the button; threedata-testidlookups follow the notice's own id now that two of these bands can share a screen.Summary by cubic
Fixes BB-63: the Swarm create screen's preflight block now says what's actually wrong in each of the four situations it called "no servers." The old copy told users to "connect a server" even when their project already had one; the launch gate itself is unchanged.
New Features
group 1.Bug Fixes
poolSizestaysnullwhile the catalog query loads, so an empty project no longer flashes the wrong copy on first paint.local_onlyfailure on the next click.guidancetone; only attached-but-unusable servers keep the amberwarning, which stays the default for shared callers.serversroute key in the test stub.Written for commit 555f61b. Summary will update on new commits.