diff --git a/.github/workflows/common-ci.yml b/.github/workflows/common-ci.yml
index ad6b4ad9cf..58fe7bdec6 100644
--- a/.github/workflows/common-ci.yml
+++ b/.github/workflows/common-ci.yml
@@ -163,6 +163,15 @@ jobs:
           npm run typecheck
           npm test
 
+      # The console job installs ui/'s packages from this cache but does not
+      # save it, so on main this job fetches them too, and a copy it saves
+      # holds them.
+      - name: Fetch the console's packages
+        if: >-
+          ${{ steps.scope.outputs.needed == 'true' && (github.event_name == 'push' && github.ref == 'refs/heads/main') }}
+        working-directory: ui
+        run: npm ci --ignore-scripts --no-fund --no-audit
+
       - name: Report the npm cache
         id: report-npm-cache
         if: ${{ steps.scope.outputs.needed == 'true' && (always()) }}
@@ -183,7 +192,7 @@ jobs:
           PACKAGE_CACHE: ${{ runner.temp }}/space-ci-helpers/package-cache.py
         run: >-
           python3 -I "${PACKAGE_CACHE}" trim npm "${HOME}/.npm"
-          docs/api/package-lock.json scripts/console-loop/package-lock.json
+          docs/api/package-lock.json scripts/console-loop/package-lock.json ui/package-lock.json
 
       - name: Save the npm cache
         if: ${{ steps.scope.outputs.needed == 'true' && (steps.prepare-npm-upload.outcome == 'success') }}
@@ -192,6 +201,90 @@ jobs:
           path: ~/.npm
           key: ${{ steps.npm-cache-key.outputs.key }}
 
+  # The admin console's unit tests, type check and production build. Two
+  # console changes can each pass alone and break the console together; this
+  # catches that before the merge. The build needs no network or secrets: its
+  # API rewrites default to local addresses.
+  console:
+    if: github.repository == 'perplexityai/SPACE'
+    name: Admin console
+    runs-on: ubuntu-24.04
+    timeout-minutes: 10
+    permissions:
+      contents: read
+    env:
+      NEXT_TELEMETRY_DISABLED: '1'
+    steps:
+      - name: Check out SPACE
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      # Pull CI and the merge queue skip a check the change cannot affect,
+      # and Main CI, which passes no base, runs it (ci/check-scopes/README.md).
+      - name: Decide whether this change needs the check
+        id: scope
+        shell: bash
+        env:
+          SCOPE: console
+          SCOPE_BASE: ${{ inputs.scope_base }}
+          # Set only for pull requests, whose change is the synthetic merge
+          # against its first parent.
+          PULL_REQUEST_HEAD: ${{ github.event.pull_request.head.sha }}
+        # Only an explicit answer reaches the gates: anything else fails.
+        run: |
+          set -euo pipefail
+          decision="$(bash ci/scripts/check-needed.sh "${SCOPE}" "${SCOPE_BASE}" "${PULL_REQUEST_HEAD}")"
+          if [[ ! "${decision}" =~ ^needed=(true|false)($'\n'base=[0-9a-f]{40})?$ ]]; then
+            echo "check-needed.sh answered '${decision}'" >&2
+            exit 1
+          fi
+          printf '%s\n' "${decision}" >>"${GITHUB_OUTPUT}"
+
+      - *copy-package-cache-helper
+
+      # The Node version the console image builds with (docker/Dockerfile.ui).
+      # The SPACE Guide saves the npm cache this job restores.
+      - name: Set up Node
+        if: steps.scope.outputs.needed == 'true'
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+        with:
+          node-version: '22.23.3'
+
+      - *name-npm-cache
+
+      - *restore-npm-cache
+
+      - *prepare-npm-cache
+
+      - name: Install the console's packages
+        if: steps.scope.outputs.needed == 'true'
+        working-directory: ui
+        run: npm ci --ignore-scripts --no-fund --no-audit
+
+      - name: Run the console's unit tests
+        if: steps.scope.outputs.needed == 'true'
+        working-directory: ui
+        run: npm test
+
+      # --no-install: without the installed TypeScript, npx would fetch the
+      # unrelated `tsc` package instead of failing.
+      - name: Type-check the console
+        if: steps.scope.outputs.needed == 'true'
+        working-directory: ui
+        run: npx --no-install tsc --noEmit -p .
+
+      - name: Build the console
+        if: steps.scope.outputs.needed == 'true'
+        working-directory: ui
+        run: npm run build
+
+      - name: Report the npm cache
+        if: ${{ steps.scope.outputs.needed == 'true' && (always()) }}
+        env:
+          PACKAGE_CACHE: ${{ runner.temp }}/space-ci-helpers/package-cache.py
+        run: python3 -I "${PACKAGE_CACHE}" report npm "${HOME}/.npm"
+
   api_reference:
     if: github.repository == 'perplexityai/SPACE'
     name: Documentation site
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e528f98e7f..f30f311cf0 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -133,9 +133,9 @@ Pull CI and the merge queue also skip any other check the change cannot
 affect: a console-only change runs no Rust or Python checks, and a
 documentation change no Rust checks. Each check's scope in
 [ci/check-scopes/](ci/check-scopes/README.md) lists the paths it never reads
-(for the Go shim, the only paths it reads). A skipped check passes, and its
-log says why. Main CI runs every check after the merge, except archcheck,
-which runs only for pull requests and merge groups.
+(for the Go shim and the admin console, the only paths they read). A skipped
+check passes, and its log says why. Main CI runs every check after the merge,
+except archcheck, which runs only for pull requests and merge groups.
 
 Run `cargo arch` to check the repository structure rules in
 [ARCHITECTURE.toml](ARCHITECTURE.toml); [archcheck](crates/tools/archcheck/README.md)
diff --git a/ci/check-scopes/README.md b/ci/check-scopes/README.md
index c7a7143fcf..201304c1a7 100644
--- a/ci/check-scopes/README.md
+++ b/ci/check-scopes/README.md
@@ -25,7 +25,7 @@ What counts as the change:
   makes the check run, so an omission costs time, never coverage.
 - `<scope>.run` lists the only paths the check reads, and the check runs when
   a changed path matches one of them. Use it only for a check whose inputs
-  are self-contained: today, the Go shim.
+  are self-contained: today, the Go shim and the admin console.
 - `run-all.txt` lists paths that make every check run: the workflows, the CI
   scripts, these files and the CI image's inputs.
 - The scope `always`, used by the two documentation jobs, has no file: those
diff --git a/ci/check-scopes/console.run b/ci/check-scopes/console.run
new file mode 100644
index 0000000000..44e2aecd69
--- /dev/null
+++ b/ci/check-scopes/console.run
@@ -0,0 +1,5 @@
+# The admin console check installs, tests, type-checks and builds ui/ from
+# its own package.json and package-lock.json. Nothing under ui/ imports,
+# reads or generates from outside it, and the Node version it runs on is in
+# the workflow, which run-all.txt covers.
+ui/**
diff --git a/ci/scripts/package-cache.py b/ci/scripts/package-cache.py
index 557a7fed4d..1112abd814 100644
--- a/ci/scripts/package-cache.py
+++ b/ci/scripts/package-cache.py
@@ -76,9 +76,14 @@
 FAMILIES = {
     "cargo": ("Cargo.lock",),
     "go": ("shim/go.mod", "shim/go.sum"),
-    # The SPACE Guide job installs both: the docs' Mermaid bundle and the
-    # console loop's checks.
-    "npm": ("docs/api/package-lock.json", "scripts/console-loop/package-lock.json"),
+    # The SPACE Guide job, which saves this cache, installs all three: the
+    # docs' Mermaid bundle, the console loop's checks and, on main, the admin
+    # console's packages, which the console job installs on every run.
+    "npm": (
+        "docs/api/package-lock.json",
+        "scripts/console-loop/package-lock.json",
+        "ui/package-lock.json",
+    ),
     "uv-python": ("uv.lock", "pyproject.toml", "ci/scripts/run-python-tests.sh"),
     "uv-shell": (
         "uv.lock",
diff --git a/ci/scripts/test-check-needed.sh b/ci/scripts/test-check-needed.sh
index d19fca9c09..902616514a 100755
--- a/ci/scripts/test-check-needed.sh
+++ b/ci/scripts/test-check-needed.sh
@@ -67,6 +67,11 @@ assert_needed true rust shim/env_contract_generated.go
 # The shim's commands run without GOWORK=off.
 assert_needed true go go.work
 
+# The admin console needs only ui/.
+assert_needed true console ui/src/lib/api.ts
+assert_needed true console ui/package-lock.json
+assert_needed false console crates/l40_api/api/src/lib.rs docs/api/openapi.json scripts/console-loop/src/loop.ts
+
 # Anything not listed as unread runs the check: Rust reads infra/, db/,
 # templates/ and scripts/.
 assert_needed true rust infra/space/identity/node-identities.sh
@@ -96,11 +101,12 @@ assert_needed false rust "ui/src/app/café.tsx"
 assert_needed false rust "docs/release notes.md"
 
 # A change to CI itself, or to the CI image's inputs, runs every check: the
-# Go scope would otherwise skip all of these.
+# Go and console scopes would otherwise skip all of these.
 assert_needed true go .github/workflows/pull-ci.yml
 assert_needed true go ci/scripts/run-shim-checks.sh
 assert_needed true go rust-toolchain.toml
 assert_needed true go docker/build-btrfs-progs.sh
+assert_needed true console .github/workflows/common-ci.yml
 
 # The change is tree to tree: a later console-only commit does not hide an
 # earlier Rust one.