diff --git a/acceptance/bundle/run/job-ref-job-id/databricks.yml b/acceptance/bundle/run/job-ref-job-id/databricks.yml
new file mode 100644
index 00000000000..3b06625845f
--- /dev/null
+++ b/acceptance/bundle/run/job-ref-job-id/databricks.yml
@@ -0,0 +1,13 @@
+bundle:
+  name: test-bundle
+
+resources:
+  jobs:
+    bar:
+      name: job bar
+    foo:
+      name: job foo
+      tasks:
+        - task_key: job_task
+          run_job_task:
+            job_id: ${resources.jobs.bar.id}
diff --git a/acceptance/bundle/run/job-ref-job-id/out.test.toml b/acceptance/bundle/run/job-ref-job-id/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/run/job-ref-job-id/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/run/job-ref-job-id/output.txt b/acceptance/bundle/run/job-ref-job-id/output.txt
new file mode 100644
index 00000000000..b1c11ca57a2
--- /dev/null
+++ b/acceptance/bundle/run/job-ref-job-id/output.txt
@@ -0,0 +1,20 @@
+
+>>> [CLI] bundle deploy
+Uploading bundle files to /Workspace/Users/[USERNAME]/.bundle/test-bundle/default/files...
+Created jobs.bar
+Created jobs.foo
+Files: 1 uploaded, 0 deleted
+Resources: 2 created, 0 changed, 0 deleted, 0 unchanged
+
+=== foo's task points at bar's job id
+>>> [CLI] jobs get [FOO_ID]
+{
+  "job_id": [BAR_ID]
+}
+
+=== run resolves the referenced job id into the int job_id field
+>>> [CLI] bundle run foo
+Run URL: [DATABRICKS_URL]/jobs/[FOO_ID]/runs/[RUN_ID]?o=[WORKSPACE_ID]
+
+[TIMESTAMP] "job foo" RUNNING
+[TIMESTAMP] "job foo" TERMINATED SUCCESS
diff --git a/acceptance/bundle/run/job-ref-job-id/script b/acceptance/bundle/run/job-ref-job-id/script
new file mode 100644
index 00000000000..49f312b9790
--- /dev/null
+++ b/acceptance/bundle/run/job-ref-job-id/script
@@ -0,0 +1,8 @@
+trace $CLI bundle deploy
+replace_ids.py
+
+title "foo's task points at bar's job id"
+trace $CLI jobs get $(read_id.py foo) | jq '.settings.tasks[0].run_job_task'
+
+title "run resolves the referenced job id into the int job_id field"
+trace $CLI bundle run foo
diff --git a/acceptance/bundle/run/job-ref-job-id/test.toml b/acceptance/bundle/run/job-ref-job-id/test.toml
new file mode 100644
index 00000000000..3c887dd20bf
--- /dev/null
+++ b/acceptance/bundle/run/job-ref-job-id/test.toml
@@ -0,0 +1,3 @@
+[[Repls]]
+Old = '/runs/\d+'
+New = '/runs/[RUN_ID]'
diff --git a/acceptance/bundle/validate/complex_variable_default_merge/a.yml b/acceptance/bundle/validate/complex_variable_default_merge/a.yml
new file mode 100644
index 00000000000..1022dfa415f
--- /dev/null
+++ b/acceptance/bundle/validate/complex_variable_default_merge/a.yml
@@ -0,0 +1,6 @@
+variables:
+  libs:
+    type: complex
+    default:
+      - one
+      - two
diff --git a/acceptance/bundle/validate/complex_variable_default_merge/b.yml b/acceptance/bundle/validate/complex_variable_default_merge/b.yml
new file mode 100644
index 00000000000..b455cc0fe07
--- /dev/null
+++ b/acceptance/bundle/validate/complex_variable_default_merge/b.yml
@@ -0,0 +1,5 @@
+variables:
+  libs:
+    type: complex
+    default:
+      - three
diff --git a/acceptance/bundle/validate/complex_variable_default_merge/databricks.yml b/acceptance/bundle/validate/complex_variable_default_merge/databricks.yml
new file mode 100644
index 00000000000..e125367ca46
--- /dev/null
+++ b/acceptance/bundle/validate/complex_variable_default_merge/databricks.yml
@@ -0,0 +1,6 @@
+bundle:
+  name: test-bundle
+
+include:
+  - a.yml
+  - b.yml
diff --git a/acceptance/bundle/validate/complex_variable_default_merge/out.test.toml b/acceptance/bundle/validate/complex_variable_default_merge/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/complex_variable_default_merge/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/complex_variable_default_merge/output.txt b/acceptance/bundle/validate/complex_variable_default_merge/output.txt
new file mode 100644
index 00000000000..f6b13647c94
--- /dev/null
+++ b/acceptance/bundle/validate/complex_variable_default_merge/output.txt
@@ -0,0 +1,15 @@
+
+>>> [CLI] bundle validate -o json
+{
+  "default": [
+    "one",
+    "two",
+    "three"
+  ],
+  "type": "complex",
+  "value": [
+    "one",
+    "two",
+    "three"
+  ]
+}
diff --git a/acceptance/bundle/validate/complex_variable_default_merge/script b/acceptance/bundle/validate/complex_variable_default_merge/script
new file mode 100644
index 00000000000..f7e09655323
--- /dev/null
+++ b/acceptance/bundle/validate/complex_variable_default_merge/script
@@ -0,0 +1 @@
+trace $CLI bundle validate -o json | jq .variables.libs
diff --git a/acceptance/bundle/validate/compute_id_location/databricks.yml b/acceptance/bundle/validate/compute_id_location/databricks.yml
new file mode 100644
index 00000000000..b6a32c6c39c
--- /dev/null
+++ b/acceptance/bundle/validate/compute_id_location/databricks.yml
@@ -0,0 +1,9 @@
+bundle:
+  name: test-bundle
+  compute_id: root-cluster
+
+targets:
+  dev:
+    compute_id: dev-cluster
+  other:
+    default: true
diff --git a/acceptance/bundle/validate/compute_id_location/out.test.toml b/acceptance/bundle/validate/compute_id_location/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/compute_id_location/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/compute_id_location/output.txt b/acceptance/bundle/validate/compute_id_location/output.txt
new file mode 100644
index 00000000000..d8d3966b1d7
--- /dev/null
+++ b/acceptance/bundle/validate/compute_id_location/output.txt
@@ -0,0 +1,36 @@
+
+=== default target without compute_id
+>>> [CLI] bundle validate
+Warning: compute_id is deprecated, please use cluster_id instead
+  at bundle.compute_id
+  in databricks.yml:3:15
+
+Warning: compute_id is deprecated, please use cluster_id instead
+  at compute_id
+  in databricks.yml:7:17
+
+Name: test-bundle
+Target: other
+Workspace:
+  User: [USERNAME]
+  Path: /Workspace/Users/[USERNAME]/.bundle/test-bundle/other
+
+Found 2 warnings
+
+=== target with compute_id
+>>> [CLI] bundle validate -t dev
+Warning: compute_id is deprecated, please use cluster_id instead
+  at bundle.compute_id
+  in databricks.yml:3:15
+
+Warning: compute_id is deprecated, please use cluster_id instead
+  at compute_id
+  in databricks.yml:7:17
+
+Name: test-bundle
+Target: dev
+Workspace:
+  User: [USERNAME]
+  Path: /Workspace/Users/[USERNAME]/.bundle/test-bundle/dev
+
+Found 2 warnings
diff --git a/acceptance/bundle/validate/compute_id_location/script b/acceptance/bundle/validate/compute_id_location/script
new file mode 100644
index 00000000000..44c1cf2f4ba
--- /dev/null
+++ b/acceptance/bundle/validate/compute_id_location/script
@@ -0,0 +1,5 @@
+title "default target without compute_id"
+trace $CLI bundle validate
+
+title "target with compute_id"
+trace $CLI bundle validate -t dev
diff --git a/acceptance/bundle/validate/compute_id_location/test.toml b/acceptance/bundle/validate/compute_id_location/test.toml
new file mode 100644
index 00000000000..d2d1c82e6d3
--- /dev/null
+++ b/acceptance/bundle/validate/compute_id_location/test.toml
@@ -0,0 +1 @@
+Badness = "Target-level compute_id is reported without the target in the path (at compute_id instead of at targets.dev.compute_id), and is reported even when that target is not selected."
diff --git a/acceptance/bundle/validate/dashboard_key_special_chars/databricks.yml b/acceptance/bundle/validate/dashboard_key_special_chars/databricks.yml
new file mode 100644
index 00000000000..b052b780d11
--- /dev/null
+++ b/acceptance/bundle/validate/dashboard_key_special_chars/databricks.yml
@@ -0,0 +1,14 @@
+bundle:
+  name: test-bundle
+
+targets:
+  bracket:
+    resources:
+      dashboards:
+        "reports[":
+          serialized_dashboard: "{}"
+  comma:
+    resources:
+      dashboards:
+        "a,b":
+          serialized_dashboard: "{}"
diff --git a/acceptance/bundle/validate/dashboard_key_special_chars/out.test.toml b/acceptance/bundle/validate/dashboard_key_special_chars/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/dashboard_key_special_chars/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/dashboard_key_special_chars/output.txt b/acceptance/bundle/validate/dashboard_key_special_chars/output.txt
new file mode 100644
index 00000000000..7c66843a334
--- /dev/null
+++ b/acceptance/bundle/validate/dashboard_key_special_chars/output.txt
@@ -0,0 +1,38 @@
+
+>>> [CLI] bundle validate -t bracket
+Error: dashboard display_name is required
+  at resources.dashboards['reports[']
+  in databricks.yml:9:11
+
+Error: dashboard warehouse_id is required
+  at resources.dashboards['reports[']
+  in databricks.yml:9:11
+
+Name: test-bundle
+Target: bracket
+Workspace:
+  User: [USERNAME]
+  Path: /Workspace/Users/[USERNAME]/.bundle/test-bundle/bracket
+
+Found 2 errors
+
+Exit code: 1
+
+>>> [CLI] bundle validate -t comma
+Error: dashboard display_name is required
+  at resources.dashboards['a,b']
+  in databricks.yml:14:11
+
+Error: dashboard warehouse_id is required
+  at resources.dashboards['a,b']
+  in databricks.yml:14:11
+
+Name: test-bundle
+Target: comma
+Workspace:
+  User: [USERNAME]
+  Path: /Workspace/Users/[USERNAME]/.bundle/test-bundle/comma
+
+Found 2 errors
+
+Exit code: 1
diff --git a/acceptance/bundle/validate/dashboard_key_special_chars/script b/acceptance/bundle/validate/dashboard_key_special_chars/script
new file mode 100644
index 00000000000..85c1fa07a03
--- /dev/null
+++ b/acceptance/bundle/validate/dashboard_key_special_chars/script
@@ -0,0 +1,9 @@
+# Dashboards missing display_name / warehouse_id must be reported even when the
+# resource key contains characters that are path syntax ("[", ","). The required-field
+# check looks the dashboard up by path, so a key that does not survive being turned
+# into a path string would silently drop these errors.
+#
+# Each key is in its own target: with both in one config the errors are reported in
+# a nondeterministic order.
+errcode trace $CLI bundle validate -t bracket
+errcode trace $CLI bundle validate -t comma
diff --git a/acceptance/bundle/validate/override_effective_location/databricks.yml b/acceptance/bundle/validate/override_effective_location/databricks.yml
new file mode 100644
index 00000000000..65bb7a5bd13
--- /dev/null
+++ b/acceptance/bundle/validate/override_effective_location/databricks.yml
@@ -0,0 +1,21 @@
+bundle:
+  name: test-bundle
+  engine: direct
+
+presets:
+  trigger_pause_status: PAUSED
+  name_prefix: "${workspace.current_user.short_name}_"
+
+targets:
+  bad_engine:
+    bundle:
+      engine: invalid_value
+  dev_trigger:
+    mode: development
+    default: true
+    presets:
+      trigger_pause_status: UNPAUSED
+  dev_prefix:
+    mode: development
+    presets:
+      name_prefix: nouser_
diff --git a/acceptance/bundle/validate/override_effective_location/out.test.toml b/acceptance/bundle/validate/override_effective_location/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/override_effective_location/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/override_effective_location/output.txt b/acceptance/bundle/validate/override_effective_location/output.txt
new file mode 100644
index 00000000000..e3fa5193367
--- /dev/null
+++ b/acceptance/bundle/validate/override_effective_location/output.txt
@@ -0,0 +1,42 @@
+
+=== engine overridden in target
+>>> [CLI] bundle validate -t bad_engine
+Error: invalid value "invalid_value" for bundle.engine (expected "direct")
+  in databricks.yml:12:15
+
+Name: test-bundle
+Target: bad_engine
+
+Found 1 error
+
+Exit code: 1
+
+=== trigger_pause_status overridden in development target
+>>> [CLI] bundle validate -t dev_trigger
+Error: target with 'mode: development' cannot set trigger pause status to UNPAUSED by default
+  in databricks.yml:17:29
+
+Name: test-bundle
+Target: dev_trigger
+Workspace:
+  User: [USERNAME]
+  Path: /Workspace/Users/[USERNAME]/.bundle/test-bundle/dev_trigger
+
+Found 1 error
+
+Exit code: 1
+
+=== name_prefix overridden in development target
+>>> [CLI] bundle validate -t dev_prefix
+Error: prefix should contain the current username or ${workspace.current_user.short_name} to ensure uniqueness when using 'mode: development'
+  in databricks.yml:21:20
+
+Name: test-bundle
+Target: dev_prefix
+Workspace:
+  User: [USERNAME]
+  Path: /Workspace/Users/[USERNAME]/.bundle/test-bundle/dev_prefix
+
+Found 1 error
+
+Exit code: 1
diff --git a/acceptance/bundle/validate/override_effective_location/script b/acceptance/bundle/validate/override_effective_location/script
new file mode 100644
index 00000000000..b3ebee43c0f
--- /dev/null
+++ b/acceptance/bundle/validate/override_effective_location/script
@@ -0,0 +1,8 @@
+title "engine overridden in target"
+errcode trace $CLI bundle validate -t bad_engine
+
+title "trigger_pause_status overridden in development target"
+errcode trace $CLI bundle validate -t dev_trigger
+
+title "name_prefix overridden in development target"
+errcode trace $CLI bundle validate -t dev_prefix
diff --git a/acceptance/bundle/validate/pipeline_development_reference/databricks.yml b/acceptance/bundle/validate/pipeline_development_reference/databricks.yml
new file mode 100644
index 00000000000..59bf09ca3d5
--- /dev/null
+++ b/acceptance/bundle/validate/pipeline_development_reference/databricks.yml
@@ -0,0 +1,10 @@
+bundle:
+  name: test-bundle
+
+resources:
+  pipelines:
+    other:
+      name: other
+    main:
+      name: main
+      development: ${resources.pipelines.other.development}
diff --git a/acceptance/bundle/validate/pipeline_development_reference/out.test.toml b/acceptance/bundle/validate/pipeline_development_reference/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/pipeline_development_reference/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/pipeline_development_reference/output.txt b/acceptance/bundle/validate/pipeline_development_reference/output.txt
new file mode 100644
index 00000000000..f808fa83528
--- /dev/null
+++ b/acceptance/bundle/validate/pipeline_development_reference/output.txt
@@ -0,0 +1,14 @@
+
+>>> [CLI] bundle validate
+Warning: The "development" property of pipelines is deprecated. Use "mode: development" in your databricks.yml instead. See https://docs.databricks.com/dev-tools/bundles/deployment-modes.
+  at resources.pipelines.main.development
+  in databricks.yml:10:20
+
+Name: test-bundle
+Target: default
+Workspace:
+  User: [USERNAME]
+  Path: /Workspace/Users/[USERNAME]/.bundle/test-bundle/default
+
+Found 1 warning
+"${resources.pipelines.other.development}"
diff --git a/acceptance/bundle/validate/pipeline_development_reference/script b/acceptance/bundle/validate/pipeline_development_reference/script
new file mode 100644
index 00000000000..c72489ac254
--- /dev/null
+++ b/acceptance/bundle/validate/pipeline_development_reference/script
@@ -0,0 +1,3 @@
+trace $CLI bundle validate
+
+trace $CLI bundle validate -o json 2>/dev/null | jq .resources.pipelines.main.development
diff --git a/acceptance/bundle/validate/target_variable_full_def_merge_key/databricks.yml b/acceptance/bundle/validate/target_variable_full_def_merge_key/databricks.yml
new file mode 100644
index 00000000000..f7bac987ac3
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_full_def_merge_key/databricks.yml
@@ -0,0 +1,13 @@
+bundle:
+  name: test-bundle
+
+variables:
+  x: &x
+    default: old
+
+targets:
+  dev:
+    variables:
+      x:
+        <<: *x
+        default: new
diff --git a/acceptance/bundle/validate/target_variable_full_def_merge_key/out.test.toml b/acceptance/bundle/validate/target_variable_full_def_merge_key/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_full_def_merge_key/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/target_variable_full_def_merge_key/output.txt b/acceptance/bundle/validate/target_variable_full_def_merge_key/output.txt
new file mode 100644
index 00000000000..d9ce0976398
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_full_def_merge_key/output.txt
@@ -0,0 +1,6 @@
+
+>>> [CLI] bundle validate -t dev -o json
+{
+  "default": "new",
+  "value": "new"
+}
diff --git a/acceptance/bundle/validate/target_variable_full_def_merge_key/script b/acceptance/bundle/validate/target_variable_full_def_merge_key/script
new file mode 100644
index 00000000000..9f33dba3103
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_full_def_merge_key/script
@@ -0,0 +1 @@
+trace $CLI bundle validate -t dev -o json | jq .variables.x
diff --git a/acceptance/bundle/validate/target_variable_merge_key_precedence/databricks.yml b/acceptance/bundle/validate/target_variable_merge_key_precedence/databricks.yml
new file mode 100644
index 00000000000..d4e45925b2d
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_merge_key_precedence/databricks.yml
@@ -0,0 +1,16 @@
+bundle:
+  name: test-bundle
+
+variables:
+  x:
+
+definitions:
+  a: &a
+    x: from-a
+  b: &b
+    x: from-b
+
+targets:
+  dev:
+    variables:
+      <<: [*a, *b]
diff --git a/acceptance/bundle/validate/target_variable_merge_key_precedence/out.test.toml b/acceptance/bundle/validate/target_variable_merge_key_precedence/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_merge_key_precedence/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/target_variable_merge_key_precedence/output.txt b/acceptance/bundle/validate/target_variable_merge_key_precedence/output.txt
new file mode 100644
index 00000000000..e8bc246c483
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_merge_key_precedence/output.txt
@@ -0,0 +1,8 @@
+
+>>> [CLI] bundle validate -t dev -o json
+{
+  "x": {
+    "default": "from-b",
+    "value": "from-b"
+  }
+}
diff --git a/acceptance/bundle/validate/target_variable_merge_key_precedence/script b/acceptance/bundle/validate/target_variable_merge_key_precedence/script
new file mode 100644
index 00000000000..ab024d811b0
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_merge_key_precedence/script
@@ -0,0 +1 @@
+trace $CLI bundle validate -t dev -o json | jq .variables
diff --git a/acceptance/bundle/validate/target_variable_merge_key_precedence/test.toml b/acceptance/bundle/validate/target_variable_merge_key_precedence/test.toml
new file mode 100644
index 00000000000..5fba7c799c1
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_merge_key_precedence/test.toml
@@ -0,0 +1 @@
+Badness = "With <<: [*a, *b] the later anchor wins; the YAML merge key spec gives precedence to the earlier one."
diff --git a/acceptance/bundle/validate/target_variable_shorthand_alias/databricks.yml b/acceptance/bundle/validate/target_variable_shorthand_alias/databricks.yml
new file mode 100644
index 00000000000..dab70888e89
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_shorthand_alias/databricks.yml
@@ -0,0 +1,22 @@
+bundle:
+  name: test-bundle
+
+variables:
+  env:
+  region:
+  size:
+  other:
+
+definitions:
+  dev_env: &dev "dev-value"
+  common: &common
+    region: us-east-1
+    size: small
+
+targets:
+  dev:
+    variables:
+      env: *dev
+      <<: *common
+      size: large
+      other: plain
diff --git a/acceptance/bundle/validate/target_variable_shorthand_alias/out.test.toml b/acceptance/bundle/validate/target_variable_shorthand_alias/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_shorthand_alias/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/target_variable_shorthand_alias/output.txt b/acceptance/bundle/validate/target_variable_shorthand_alias/output.txt
new file mode 100644
index 00000000000..73f378fee1c
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_shorthand_alias/output.txt
@@ -0,0 +1,20 @@
+
+>>> [CLI] bundle validate -t dev -o json
+{
+  "env": {
+    "default": "dev-value",
+    "value": "dev-value"
+  },
+  "other": {
+    "default": "plain",
+    "value": "plain"
+  },
+  "region": {
+    "default": "us-east-1",
+    "value": "us-east-1"
+  },
+  "size": {
+    "default": "large",
+    "value": "large"
+  }
+}
diff --git a/acceptance/bundle/validate/target_variable_shorthand_alias/script b/acceptance/bundle/validate/target_variable_shorthand_alias/script
new file mode 100644
index 00000000000..ab024d811b0
--- /dev/null
+++ b/acceptance/bundle/validate/target_variable_shorthand_alias/script
@@ -0,0 +1 @@
+trace $CLI bundle validate -t dev -o json | jq .variables
diff --git a/acceptance/bundle/validate/task_source_empty_string/databricks.yml b/acceptance/bundle/validate/task_source_empty_string/databricks.yml
new file mode 100644
index 00000000000..03e95eb7307
--- /dev/null
+++ b/acceptance/bundle/validate/task_source_empty_string/databricks.yml
@@ -0,0 +1,16 @@
+bundle:
+  name: test-bundle
+
+resources:
+  jobs:
+    my_job:
+      name: my job
+      git_source:
+        git_url: https://github.com/databricks/cli
+        git_provider: gitHub
+        git_branch: main
+      tasks:
+        - task_key: main
+          notebook_task:
+            notebook_path: ./notebook
+            source: ""
diff --git a/acceptance/bundle/validate/task_source_empty_string/out.test.toml b/acceptance/bundle/validate/task_source_empty_string/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/task_source_empty_string/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/task_source_empty_string/output.txt b/acceptance/bundle/validate/task_source_empty_string/output.txt
new file mode 100644
index 00000000000..997343d5302
--- /dev/null
+++ b/acceptance/bundle/validate/task_source_empty_string/output.txt
@@ -0,0 +1,10 @@
+
+>>> [CLI] bundle validate -o json
+[
+  {
+    "notebook_task": {
+      "notebook_path": "./notebook"
+    },
+    "task_key": "main"
+  }
+]
diff --git a/acceptance/bundle/validate/task_source_empty_string/script b/acceptance/bundle/validate/task_source_empty_string/script
new file mode 100644
index 00000000000..b6b3d99b901
--- /dev/null
+++ b/acceptance/bundle/validate/task_source_empty_string/script
@@ -0,0 +1 @@
+trace $CLI bundle validate -o json | jq .resources.jobs.my_job.tasks
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/databricks.yml b/acceptance/bundle/validate/variable_overrides_file_complex_path/databricks.yml
new file mode 100644
index 00000000000..abeb913a709
--- /dev/null
+++ b/acceptance/bundle/validate/variable_overrides_file_complex_path/databricks.yml
@@ -0,0 +1,17 @@
+bundle:
+  name: test-bundle
+
+variables:
+  task:
+    type: complex
+
+resources:
+  jobs:
+    my_job:
+      name: my job
+      tasks:
+        - ${var.task}
+
+targets:
+  default:
+    default: true
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/out.test.toml b/acceptance/bundle/validate/variable_overrides_file_complex_path/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/variable_overrides_file_complex_path/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/output.txt b/acceptance/bundle/validate/variable_overrides_file_complex_path/output.txt
new file mode 100644
index 00000000000..87fb1b3b20b
--- /dev/null
+++ b/acceptance/bundle/validate/variable_overrides_file_complex_path/output.txt
@@ -0,0 +1,21 @@
+
+>>> [CLI] bundle validate -o json
+Error: path src/main.py is defined relative to the [TEST_TMP_DIR] directory ([TEST_TMP_DIR]/.databricks/bundle/default/variable-overrides.json:6:37). Please update the path to be relative to the file where it is defined or use earlier version of CLI (0.261.0 or earlier).
+  in .databricks/bundle/default/variable-overrides.json:6:37
+
+
+Exit code: 1
+[
+  {
+    "existing_cluster_id": "0123-456789-abcdefgh",
+    "libraries": [
+      {
+        "whl": ".databricks/bundle/default/src/lib.whl"
+      }
+    ],
+    "spark_python_task": {
+      "python_file": "/Workspace/Users/[USERNAME]/.bundle/test-bundle/default/files/src/main.py"
+    },
+    "task_key": "main"
+  }
+]
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/script b/acceptance/bundle/validate/variable_overrides_file_complex_path/script
new file mode 100644
index 00000000000..ade57be3b05
--- /dev/null
+++ b/acceptance/bundle/validate/variable_overrides_file_complex_path/script
@@ -0,0 +1,3 @@
+mkdir -p .databricks/bundle/default
+mv variable-overrides.json .databricks/bundle/default/
+errcode trace $CLI bundle validate -o json | jq '.resources.jobs.my_job.tasks'
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/src/lib.whl b/acceptance/bundle/validate/variable_overrides_file_complex_path/src/lib.whl
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/src/main.py b/acceptance/bundle/validate/variable_overrides_file_complex_path/src/main.py
new file mode 100644
index 00000000000..b80e3222ab2
--- /dev/null
+++ b/acceptance/bundle/validate/variable_overrides_file_complex_path/src/main.py
@@ -0,0 +1 @@
+print("hi")
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/test.toml b/acceptance/bundle/validate/variable_overrides_file_complex_path/test.toml
new file mode 100644
index 00000000000..ca5df96f13e
--- /dev/null
+++ b/acceptance/bundle/validate/variable_overrides_file_complex_path/test.toml
@@ -0,0 +1,5 @@
+Badness = "Relative paths in variable-overrides.json resolve inconsistently: task files are resolved against the bundle root (with an error), libraries relative to the overrides file."
+
+[[Repls]]
+Old = '\\'
+New = '/'
diff --git a/acceptance/bundle/validate/variable_overrides_file_complex_path/variable-overrides.json b/acceptance/bundle/validate/variable_overrides_file_complex_path/variable-overrides.json
new file mode 100644
index 00000000000..3a44bf858e0
--- /dev/null
+++ b/acceptance/bundle/validate/variable_overrides_file_complex_path/variable-overrides.json
@@ -0,0 +1,14 @@
+{
+  "task": {
+    "task_key": "main",
+    "existing_cluster_id": "0123-456789-abcdefgh",
+    "spark_python_task": {
+      "python_file": "./src/main.py"
+    },
+    "libraries": [
+      {
+        "whl": "./src/lib.whl"
+      }
+    ]
+  }
+}
diff --git a/acceptance/bundle/validate/yaml_anchor_cycle_nested/databricks.yml b/acceptance/bundle/validate/yaml_anchor_cycle_nested/databricks.yml
new file mode 100644
index 00000000000..41bfacdc5b5
--- /dev/null
+++ b/acceptance/bundle/validate/yaml_anchor_cycle_nested/databricks.yml
@@ -0,0 +1,8 @@
+bundle:
+  name: test-bundle
+
+variables:
+  v:
+    default: &x
+      a:
+        - *x
diff --git a/acceptance/bundle/validate/yaml_anchor_cycle_nested/out.test.toml b/acceptance/bundle/validate/yaml_anchor_cycle_nested/out.test.toml
new file mode 100644
index 00000000000..a927a5fbc06
--- /dev/null
+++ b/acceptance/bundle/validate/yaml_anchor_cycle_nested/out.test.toml
@@ -0,0 +1,2 @@
+Cloud = false
+EnvMatrix.DMS = ["", "true"]
diff --git a/acceptance/bundle/validate/yaml_anchor_cycle_nested/output.txt b/acceptance/bundle/validate/yaml_anchor_cycle_nested/output.txt
new file mode 100644
index 00000000000..8226094673d
--- /dev/null
+++ b/acceptance/bundle/validate/yaml_anchor_cycle_nested/output.txt
@@ -0,0 +1,8 @@
+
+>>> [CLI] bundle validate
+Error: failed to load [TEST_TMP_DIR]/databricks.yml: yaml ([TEST_TMP_DIR]/databricks.yml:8:11): cyclic reference to anchor "x"
+
+
+Found 1 error
+
+Exit code: 1
diff --git a/acceptance/bundle/validate/yaml_anchor_cycle_nested/script b/acceptance/bundle/validate/yaml_anchor_cycle_nested/script
new file mode 100644
index 00000000000..f52b452ee67
--- /dev/null
+++ b/acceptance/bundle/validate/yaml_anchor_cycle_nested/script
@@ -0,0 +1 @@
+errcode trace $CLI bundle validate
diff --git a/acceptance/bundle/validate/yaml_anchor_cycle_nested/test.toml b/acceptance/bundle/validate/yaml_anchor_cycle_nested/test.toml
new file mode 100644
index 00000000000..a298217f218
--- /dev/null
+++ b/acceptance/bundle/validate/yaml_anchor_cycle_nested/test.toml
@@ -0,0 +1,3 @@
+[[Repls]]
+Old = '\\'
+New = '/'