feat(cli): add appkit doctor command by IamGalymzhan · Pull Request #489 · databricks/appkit

IamGalymzhan · 2026-07-23T14:00:52Z

appkit doctor - cli command that checks connectivity to the Databricks resources

The command does three level of checks:

auth - validates DATABRICKS_HOST and authenticates to the workspace
config - validates that each needed environmental variable is present (e.g. warehouse_id, genie_space_id)
existence - checks that given resource exists and reachable by read requests ( .get() or SELECT 1) to check connection
wiring - checks that resources are declared correctly across appkit.plugings.json ↔ apps.yaml ↔ databricks.yml

Output is a list of resources and problems if any with hints. Also there is options --json for machine readable output. and --detail for more detailed overview with error itself.

Examples:

Failed auth

Genie Space is not provided, Job is not accessible or doesn't exists

Files are not added to the app.yaml

Everything is setup correctly

How it works:

Resolve all resources needed for the app from appkit.plugins.json
Auth: calls currentUser.me() to check that auth is fine
Config: for each resource declared checks that corresponding environmental variable is present
Existence: for each resource declared tries to connect and check if resource exists / has permission to access
Wiring: checks that all required resources are declared correctly across appkit.plugins.json, databricks.yml and apps.yaml
Print a report for user or for the agent with --json option

github-actions · 2026-07-23T14:02:33Z

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github-actions · 2026-07-23T14:03:14Z

📦 Bundle size report

Compared against bundle-size-baseline.json (main).

`@databricks/appkit`

npm tarball (packed): 797 KB (+34 KB) — gzipped download (dist + bin; excludes release-only docs/NOTICE).

dist	raw	gzip
JS (runtime)	820 KB (+29 KB)	286 KB (+9.9 KB)
Type declarations	302 KB (+17 KB)	103 KB (+5.9 KB)
Source maps	1.6 MB (+65 KB)	536 KB (+21 KB)
Other	11 KB	3.7 KB
Total	2.7 MB (+110 KB)	929 KB (+37 KB)

Per-entry composition (own code — deps external (as shipped))

Entry	Initial (gz)	Lazy (gz)	Total (gz)	node_modules (min)	Own code (min)
`.`	86 KB (+10 B)	2.5 KB	89 KB (+10 B)	external	281 KB (+34 B)
`./beta`	44 KB (+4.6 KB)	429 B (+198 B)	45 KB (+4.8 KB)	external	129 KB (+9.5 KB)
`./type-generator`	19 KB	0 B	19 KB	external	54 KB

Chunks:

Entry	Chunk	Load	Size (gz)
`.`	`index.js`	initial	82 KB
`.`	`utils.js`	initial	4.0 KB
`.`	`remote-tunnel-manager.js`	lazy	2.5 KB
`./beta`	`beta.js`	initial	29 KB
`./beta`	`stream-manager.js`	initial	5.8 KB
`./beta`	`wide-event-emitter.js`	initial	3.2 KB
`./beta`	`databricks.js`	initial	3.0 KB
`./beta`	`configuration.js`	initial	2.1 KB
`./beta`	`service-context.js`	initial	1.3 KB
`./beta`	`client-options.js`	initial	220 B
`./beta`	`supervisor-api.js`	lazy	184 B
`./beta`	`databricks.js`	lazy	132 B
`./beta`	`index.js`	lazy	113 B
`./type-generator`	`index.js`	initial	19 KB

`@databricks/appkit-ui`

npm tarball (packed): 305 KB (+101 B) — gzipped download (dist + bin; excludes release-only docs/NOTICE).

dist	raw	gzip
JS (runtime)	360 KB (+390 B)	119 KB (+60 B)
Type declarations	205 KB	74 KB
Source maps	686 KB (+390 B)	224 KB (+66 B)
CSS	16 KB	3.3 KB
Total	1.2 MB (+780 B)	422 KB (+126 B)

Per-entry composition (consumer bundle — deps bundled, peerDeps external)

Entry	Initial (gz)	Lazy (gz)	Total (gz)	node_modules (min)	Own code (min)
`./js`	4.3 KB	49 KB	54 KB	208 KB	12 KB
`./js/beta`	20 B	0 B	20 B	0 B	0 B
`./react`	429 KB (+55 B)	49 KB	478 KB (+55 B)	1.3 MB	168 KB (+390 B)
`./react/beta`	20 B	0 B	20 B	0 B	0 B

Chunks:

Entry	Chunk	Load	Size (gz)
`./js`	`index.js`	initial	4.2 KB
`./js`	`chunk`	initial	120 B
`./js`	`apache-arrow`	lazy	49 KB
`./js/beta`	`beta.js`	initial	20 B
`./react`	`index.js`	initial	427 KB
`./react`	`tslib`	initial	2.1 KB
`./react`	`apache-arrow`	lazy	49 KB
`./react/beta`	`beta.js`	initial	20 B

Diagnose whether an AppKit app's declared Databricks resources are actually usable, beyond the startup env-var check. Registered as `appkit doctor`. Three layers per resource: - auth: validate DATABRICKS_HOST, then currentUser.me() (once, app-wide) - config: offline env-var presence check - existence: live per-type probe — control-plane .get() for warehouse, serving, genie, job, volume, vector index, uc_function; a real SELECT 1 connection for Lakebase/postgres. Errors are classified (NOT_FOUND, INVALID_VALUE, ACCESS_DENIED) with clean one-line messages. Actionable hints translate opaque failures into the fix: expired/missing credentials to the right `databricks auth login`, a serving endpoint keyed by id to its name, and a Lakebase auth failure to the PGUSER/identity mismatch. Reaches the Databricks SDK / @databricks/appkit only through a runtime import in databricks-client.ts, keeping the SDK-free shared package free of the dependency and degrading gracefully when it is absent. Output is a friendly list (errors first; plugin/type + reason shown only on rows needing attention) or --json; exit code is non-zero on any error so it can gate CI. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

github-actions · 2026-07-24T11:30:29Z

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📦 Try this PR's app template

Scaffolds a new app from this PR's SDK build. Run it in any folder (requires the GitHub CLI — gh auth login — and the Databricks CLI):

gh run download 30629284434 -R databricks/appkit -n appkit-template-0.48.0-pr.8dea943-feat-doctor-command-489 -D appkit-pr-489 \
  && unzip -o "appkit-pr-489/appkit-template-0.48.0-pr.8dea943-feat-doctor-command-489.zip" -d "appkit-pr-489" \
  && databricks apps init --template "appkit-pr-489"

The template pins @databricks/appkit and @databricks/appkit-ui to tarballs built from this branch, so the scaffolded app runs against this PR's code.

Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

Run existence probes concurrently via Promise.all (independent network reads; input order preserved), cache DATABRICKS_HOST in a local, and drop a redundant `unknown | undefined` parameter type. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

…bility - Add --env-file flag to load an explicit env file (e.g. .env.local), overriding the auto-loaded .env so doctor checks the app's real env. - Add --detail flag to show the full raw SDK error; by default the report shows a short "authentication failed" headline plus an actionable hint. - Make auth hints action-first and reference the profile/host in use: classify unreachable-host (DNS/TLS) failures, recover the SDK-resolved profile so the login hint targets the right one, and surface it in the header. - Collapse auth-skipped resources into a single line, keep rows with real findings, and nudge toward --detail at the end. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

Match the capitalized "Details:" label used in the rendered report. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

…port Extend `appkit doctor` to understand Databricks Asset Bundles and to render a cleaner, single-list report. - Classify each resource's provenance from databricks.yml + app.yaml (bundle.ts): external (probed live) vs bundle-managed (created on deploy, reported as such rather than a false NOT_FOUND). - Add an offline three-file wiring check (checks-wiring.ts) that spans app.yaml <-> databricks.yml <-> plugin env vars, catching gaps the official validators miss: VALUEFROM_UNBOUND, BUNDLE_REF_MISSING, and ENV_UNWIRED. A wiring error gates the exit code for pre-deploy CI. - Filter to plugins marked requiredByTemplate: true. - Redesign the report: one flat, severity-sorted checklist (no titled sub-sections), every row sharing one shape (glyph + label, indented detail, hint set off by blank lines). Reserve colour for actionable tokens (cyan ids/code spans, bold env vars) via picocolors, which auto-disables for non-TTY / NO_COLOR. - Shorten and standardise error messages: drop redundant snake_case types and SDK noise, quote the value you'd act on, and give missing env vars an actionable hint. - Add --env-file and --detail flags. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

CI forces colour on, so picocolors wraps the summary line in escape codes; the exact-match and startsWith assertions failed against `\x1b[32m3 ok\x1b[39m`. Strip ANSI in the capture helper so assertions are colour-agnostic in any environment. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

…L, drop --manifest Act on code-review findings for the doctor command: - Declare js-yaml + @types/js-yaml in shared's package.json. bundle.ts imported js-yaml but only resolved via pnpm hoisting / being bundled into appkit — a fragile packaging gap. Declare it like dotenv/picocolors. - Surface malformed bundle YAML instead of swallowing it. readYaml now throws on a present-but-unparseable databricks.yml/app.yaml rather than returning null (which set present:false, skipping all wiring checks and reporting a false all-clear on deploy-breaking config). Absent files still degrade gracefully. - Remove the --manifest flag. Multiple plugin manifests is a non-scenario (appkit.plugins.json is generated at a fixed path), and the flag opened two footguns: a mistyped path silently checked nothing, and it could desync from the fixed bundle-file paths. Dropping it closes both. - Document the known limitation that used non-GA plugins aren't checked (plugin sync strips requiredByTemplate for non-GA), with a fast-follow note, in both the filter comment and the README. - Comment the deliberate, unrestored process.env mutation in getServiceClient (safe in a one-shot CLI). Adds tests for the malformed-YAML throw. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

…tion The prior code set process.env.DATABRICKS_CONFIG_PROFILE to apply an explicit --profile — a hidden, unrestored global side effect. The SDK's own Config exposes a first-class `profile` field, so pass it straight into new WorkspaceClient({ profile }) instead. No env mutation, no leak past the call, and it correctly overrides an ambient DATABRICKS_CONFIG_PROFILE. Verified against the real SDK. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

Address a security finding: sensitive data could reach captured output. - Strip URL userinfo (user:pass@) from DATABRICKS_HOST at capture, so credentials embedded in the host never reach the report or --json. Validation still runs on the raw value. - Gate auth.raw in --json behind --detail, matching the human report. A bare --json omits the raw SDK error (CI commonly captures --json); --json --detail opts back in. Also folds in pending doctor cleanups the tree already carried and that these changes build on: an errorMessage() helper in a new utils.ts, and STATUS_SEVERITY / AUTH_UNAVAILABLE_CODE constants shared via types.ts to stop run.ts and report.ts drifting. Adds tests for host sanitization and the --json raw gate (92 total). Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

ENV_UNWIRED was always a warning, but exitCodeFor gates only on errors — so a required plugin's env var with no app.yaml entry (set locally via .env, unset in the deployed container) exited 0, the exact works-locally-breaks-on-deploy case the wiring check exists to catch. Gate on target.required: error for required (fails the exit code, blocks pre-deploy CI), warn for optional. Tests cover both. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

No probe, currentUser.me(), or Lakebase SELECT 1 had a deadline, so a reachable-but-unresponsive endpoint would hang doctor forever — and as a CI gate, the job would never return. Add withTimeout (Promise.race against a 10s wall-clock deadline) around each existence probe and the auth me() call. It can't cancel the underlying request, but it stops doctor *waiting* so the report returns: a timed-out probe becomes a PROBE_TIMEOUT error row, a timed-out auth becomes an auth failure. The timer is always cleared, so a fast result leaves nothing pending and the CLI exits promptly. Lakebase connection setup was already bounded (connectionTimeoutMillis: 10s); this covers a hung query on an established connection too. Tests: withTimeout unit tests (fake timers), a hung-probe run test, and a hung-auth test. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

summary counted only resources; printReport folded auth + wiring in at render time but never wrote it back, so printReportJson emitted the unfolded counts. A --json consumer reading summary.error === 0 missed auth failures and wiring errors (e.g. a required ENV_UNWIRED) — the exact CI-gate case. Build summary over everything with a status (resources + auth + wiring) once in runDoctor, and add a top-level exitCode as the unambiguous pass/fail signal. printReport now renders the summary verbatim (no re-folding, so human and --json agree) and exitCodeFor just reads the field. Moves the aggregation coverage to run.test.ts. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

The probe's own .catch covered a probe rejection, but checkResource had no top-level guard: an unexpected throw (a config-layer error, a synchronous throw in probe dispatch, anything else) rejected Promise.all and lost the entire report to a stack trace. Wrap each resource in checkResourceSafe, mapping any throw to a PROBE_EXCEPTION error row so the run always resolves and the rest of the report survives. Test verifies a synchronous probe throw becomes a row rather than crashing (confirmed it fails without the guard). Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

The Lakebase pool's default error-only logger dumps the raw SDK ApiError (stack + full response blob) to stderr on a failed token fetch, burying doctor's clean one-line classification. Pass logger: { error: false } so doctor owns the failure output. Reorder createLakebasePool so a caller-supplied logger overrides the appkit default. Also trims the Lakebase auth hint and prunes redundant tests. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

IamGalymzhan force-pushed the feat/doctor-command branch from 8907117 to 0744f9a Compare July 24, 2026 11:24

IamGalymzhan force-pushed the feat/doctor-command branch from fc846c6 to 1dde6f9 Compare July 27, 2026 09:40

Merge branch 'main' into feat/doctor-command

7569c08

Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

IamGalymzhan force-pushed the feat/doctor-command branch from 1dde6f9 to 7569c08 Compare July 27, 2026 09:55

IamGalymzhan marked this pull request as ready for review July 27, 2026 13:13

IamGalymzhan requested a review from a team as a code owner July 27, 2026 13:13

IamGalymzhan requested a review from atilafassina July 27, 2026 13:13

IamGalymzhan and others added 15 commits July 29, 2026 10:48

test(shared): fix doctor report detail-block assertion

463560c

Match the capitalized "Details:" label used in the rendered report. Signed-off-by: Galymzhan <zhangazy2004@gmail.com>

Merge branch 'main' into feat/doctor-command

87271e6

Merge branch 'main' into feat/doctor-command

cbf5100

Merge branch 'main' into feat/doctor-command

006b7a7

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feat(cli): add appkit doctor command - #489

feat(cli): add appkit doctor command#489
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appkit doctor - cli command that checks connectivity to the Databricks resources

Examples:

How it works:

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📦 Bundle size report

@databricks/appkit

@databricks/appkit-ui

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`@databricks/appkit`

`@databricks/appkit-ui`

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