diff --git a/.github/actions/cache/action.yml b/.github/actions/cache/action.yml
new file mode 100644
index 00000000000..39edb3ad1f2
--- /dev/null
+++ b/.github/actions/cache/action.yml
@@ -0,0 +1,24 @@
+name: Cache
+
+description: Restore cached dependencies.
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Get yarn cache directory path
+      shell: bash
+      id: yarn-cache-dir-path
+      run: echo "::set-output name=dir::$(yarn cache dir)"
+
+    - name: Restore yarn cache
+      uses: actions/cache@v2
+      id: yarn-cache
+      with:
+        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+        key: ${{ runner.os }}-yarn-${{ hashFiles('yarn.lock') }}
+
+    - name: Restore node_modules
+      uses: actions/cache@v2
+      with:
+        path: '**/node_modules'
+        key: ${{ runner.os }}-modules-${{ hashFiles('yarn.lock') }}
diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
new file mode 100644
index 00000000000..01c7e786ce3
--- /dev/null
+++ b/.github/actions/setup/action.yml
@@ -0,0 +1,32 @@
+name: Setup
+
+description: Setup CI environment.
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Restore cache
+      uses: ./.github/actions/cache
+
+    - name: Update apt packages
+      shell: bash
+      run: sudo apt update
+
+    - name: Install Java
+      uses: actions/setup-java@v2
+      with:
+        distribution: 'zulu'
+        java-version: '11.0.4'
+
+    - name: Install Node
+      uses: actions/setup-node@v2
+      with:
+        node-version-file: '.nvmrc'
+
+    - name: Install JavaScript Dependencies
+      shell: bash
+      run: yarn install
+
+    - name: Install spec linter
+      shell: bash
+      run: sudo apt-get -y install yamllint
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 00000000000..da5f08bb0b8
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,81 @@
+name: Checks
+
+on: [push]
+
+jobs:
+  setup:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+  specs:
+    runs-on: ubuntu-20.04
+    needs: setup
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Restore cache
+        uses: ./.github/actions/cache
+
+      - name: Build
+        run: yarn build:spec
+
+      - name: Validate
+        run: yarn validate
+
+      - name: Lint
+        run: yamllint specs
+
+  client_javascript:
+    runs-on: ubuntu-20.04
+    needs: [setup, specs]
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Restore cache
+        uses: ./.github/actions/cache
+
+      - name: Generate search client
+        run: yarn generate:js:search
+
+      - name: Build search client
+        run: yarn client:build-js:search
+
+      - name: Generate recommend client
+        run: yarn generate:js:recommend
+
+      - name: Build recommend client
+        run: yarn client:build-js:recommend
+
+      - name: Generate personalization client
+        run: yarn generate:js:personalization
+
+      - name: Build personalization client
+        run: yarn client:build-js:personalization
+
+      - name: Lint
+        run: yarn lint
+
+  cts:
+    runs-on: ubuntu-20.04
+    needs: [setup, specs, client_javascript]
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Restore cache
+        uses: ./.github/actions/cache
+
+      - name: Generate clients
+        run: yarn generate
+
+      - name: Build client
+        run: yarn client:build
+
+      - name: Generate CTS
+        run: yarn cts:generate
+
+      - name: Run CTS
+        run: yarn cts:test
diff --git a/.github/workflows/client_javascript.yml b/.github/workflows/client_javascript.yml
deleted file mode 100644
index d10b13ff9da..00000000000
--- a/.github/workflows/client_javascript.yml
+++ /dev/null
@@ -1,43 +0,0 @@
-name: client_javascript
-
-on: [push]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: actions/setup-java@v2
-        with:
-          distribution: 'zulu'
-          java-version: '11'
-
-      - uses: actions/setup-node@v2
-        with:
-          node-version-file: '.nvmrc'
-          cache: 'yarn'
-          cache-dependency-path: 'yarn.lock'
-
-      - name: Install Dependencies
-        run: yarn install
-
-      - name: Generate search client
-        run: yarn generate:js:search
-
-      - name: Build search client
-        run: yarn client:build-js:search
-
-      - name: Generate recommend client
-        run: yarn generate:js:recommend
-
-      - name: Build recommend client
-        run: yarn client:build-js:recommend
-
-      - name: Generate personalization client
-        run: yarn generate:js:personalization
-
-      - name: Build personalization client
-        run: yarn client:build-js:personalization
-      - name: Lint
-        run: yarn lint
diff --git a/.github/workflows/cts.yml b/.github/workflows/cts.yml
deleted file mode 100644
index ce512506f28..00000000000
--- a/.github/workflows/cts.yml
+++ /dev/null
@@ -1,30 +0,0 @@
-name: cts
-
-on: [push]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: actions/setup-node@v2
-        with:
-          node-version-file: '.nvmrc'
-          cache: 'yarn'
-          cache-dependency-path: 'yarn.lock'
-
-      - name: Install Dependencies
-        run: yarn install
-
-      - name: Generate client
-        run: yarn generate:js
-
-      - name: Build client
-        run: yarn client:build
-
-      - name: Generate CTS
-        run: yarn cts:generate
-
-      - name: Run CTS
-        run: yarn cts:test
diff --git a/.github/workflows/specs.yml b/.github/workflows/specs.yml
deleted file mode 100644
index 88840a75ec6..00000000000
--- a/.github/workflows/specs.yml
+++ /dev/null
@@ -1,32 +0,0 @@
-name: specs
-
-on: [push]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: actions/setup-java@v2
-        with:
-          distribution: 'zulu'
-          java-version: '11'
-
-      - uses: actions/setup-node@v2
-        with:
-          node-version-file: '.nvmrc'
-          cache: 'yarn'
-          cache-dependency-path: 'yarn.lock'
-
-      - name: Install Dependencies
-        run: yarn install
-
-      - name: Build
-        run: yarn build:spec
-
-      - name: Validate
-        run: yarn validate
-
-      - name: Lint
-        run: yarn prettier --check specs
diff --git a/.yamllint b/.yamllint
new file mode 100644
index 00000000000..936003eef68
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,29 @@
+---
+yaml-files:
+  - '*.yml'
+
+rules:
+  line-length: disable
+  braces: enable
+  brackets: enable
+  colons: enable
+  commas: enable
+  comments:
+    level: warning
+  comments-indentation:
+    level: warning
+  document-end: disable
+  document-start: { present: false }
+  empty-lines: enable
+  empty-values: disable
+  hyphens: enable
+  indentation: enable
+  key-duplicates: enable
+  key-ordering: disable
+  new-line-at-end-of-file: enable
+  new-lines: enable
+  octal-values: disable
+  quoted-strings: disable
+  trailing-spaces: enable
+  truthy:
+    level: warning
diff --git a/specs/analytics/paths/search/getTopFilterAttributes.yml b/specs/analytics/paths/search/getTopFilterAttributes.yml
index e012e7acb56..516f9e4a9c5 100644
--- a/specs/analytics/paths/search/getTopFilterAttributes.yml
+++ b/specs/analytics/paths/search/getTopFilterAttributes.yml
@@ -1,2 +1,2 @@
+# handle /2/filters?search= as well
 get:
-# handle /2/filters?search= as well
diff --git a/specs/analytics/spec.yml b/specs/analytics/spec.yml
index 871895b8233..fb71e428c57 100644
--- a/specs/analytics/spec.yml
+++ b/specs/analytics/spec.yml
@@ -13,12 +13,6 @@ security:
   - appId: []
     apiKey: []
 paths:
-  # ########################
-  # ### Status Endpoints ###
-  # ########################
-  /2/status:
-    $ref: './paths/status/getStatus.yml'
-  #
   # ##################################
   # ### Search Analytics Endpoints ###
   # ##################################
@@ -48,7 +42,7 @@ paths:
   #   $ref: './paths/search/getAttributeTopFilters.yml'
   # /2/countries:
   #   $ref: './paths/search/getTopCountries.yml'
-  #
+
   # #################################
   # ### Click Analytics Endpoints ###
   # #################################
@@ -60,3 +54,9 @@ paths:
   #   $ref: './paths/click/getClickThroughRate.yml'
   # /2/conversions/conversionRate:
   #   $ref: './paths/click/getConversionRate.yml'
+
+  # ########################
+  # ### Status Endpoints ###
+  # ########################
+  /2/status:
+    $ref: './paths/status/getStatus.yml'
diff --git a/specs/search/spec.yml b/specs/search/spec.yml
index 9ca319447a6..e75bddb1848 100644
--- a/specs/search/spec.yml
+++ b/specs/search/spec.yml
@@ -20,11 +20,11 @@ paths:
     $ref: './paths/search/search.yml'
   /1/indexes/*/queries:
     $ref: './paths/search/multipleQueries.yml'
-  #/1/indexes/{indexName}/facets/{facetName}/query:
+  # /1/indexes/{indexName}/facets/{facetName}/query:
   #  $ref: './paths/search/searchForFacetValues.yml'
-  #/1/indexes/{indexName}/browse:
+  # /1/indexes/{indexName}/browse:
   #  $ref: './paths/search/browse.yml'
-  #
+
   # #########################
   # ### Objects Endpoints ###
   # #########################
@@ -46,21 +46,13 @@ paths:
   #   $ref: './paths/objects/multipleGetObjects.yml'
   # /1/indexes/{indexName}/{objectID}:
   #   $ref: './paths/objects/getObject.yml'
-  #
+
   # ##########################
   # ### Settings Endpoints ###
   # ##########################
   /1/indexes/{indexName}/settings:
     $ref: './paths/settings/settings.yml'
-  #
-  # ################################
-  # ### Manage Indices Endpoints ###
-  # ################################
-  /1/indexes/{indexName}/operation:
-    $ref: './paths/manage_indices/operationIndex.yml'
-  /1/indexes:
-    $ref: './paths/manage_indices/listIndices.yml'
-  #
+
   # ##########################
   # ### Synonyms Endpoints ###
   # ##########################
@@ -72,7 +64,7 @@ paths:
   #   $ref: './paths/synonyms/clearAllSynonyms.yml'
   # /1/indexes/{indexName}/synonyms/search:
   #   $ref: './paths/synonyms/searchSynonyms.yml'
-  #
+
   # ######################
   # ### Keys Endpoints ###
   # ######################
@@ -82,7 +74,7 @@ paths:
   #   $ref: './paths/keys/key.yml'
   # /1/keys/{key}/restore:
   #   $ref: './paths/keys/restoreApiKey.yml'
-  #
+
   # #######################
   # ### Rules Endpoints ###
   # #######################
@@ -94,7 +86,7 @@ paths:
   #   $ref: './paths/rules/clearRules.yml'
   # /1/indexes/{indexName}/rules/search:
   #   $ref: './paths/rules/searchRules.yml'
-  #
+
   # ##############################
   # ### Dictionaries Endpoints ###
   # ##############################
@@ -106,7 +98,7 @@ paths:
   #   $ref: './paths/dictionaries/dictionarySettings.yml'
   # /1/dictionaries/*/languages:
   #   $ref: './paths/dictionaries/getDictionaryLanguages.yml'
-  #
+
   # ###############################
   # ### MultiClusters Endpoints ###
   # ###############################
@@ -124,7 +116,7 @@ paths:
   #   $ref: './paths/multiclusters/searchUserIds.yml'
   # /1/clusters/mapping/pending:
   #   $ref: './paths/multiclusters/hasPendingMappings.yml'
-  #
+
   # #######################
   # ### Vault Endpoints ###
   # #######################
@@ -134,7 +126,7 @@ paths:
   #   $ref: './paths/vault/appendSource.yml'
   # /1/security/sources/{source}:
   #   $ref: './paths/vault/deleteSource.yml'
-  #
+
   # ##########################
   # ### Advanced Endpoints ###
   # ##########################
@@ -144,3 +136,11 @@ paths:
   #   $ref: './paths/advanced/getTask.yml'
   # /1/isalive:
   #   $ref: './paths/advanced/isAlive.yml'
+
+  # ################################
+  # ### Manage Indices Endpoints ###
+  # ################################
+  /1/indexes/{indexName}/operation:
+    $ref: './paths/manage_indices/operationIndex.yml'
+  /1/indexes:
+    $ref: './paths/manage_indices/listIndices.yml'