diff --git a/config/scripts/ci/sharding/ci-shard-timings.json b/config/scripts/ci/sharding/ci-shard-timings.json
index 2892db33f7b..d6dc8e43bfd 100644
--- a/config/scripts/ci/sharding/ci-shard-timings.json
+++ b/config/scripts/ci/sharding/ci-shard-timings.json
@@ -6603,7 +6603,6 @@
       "src/shared/plugins/contributions/plugin-command-replaces.test.ts": 230,
       "src/shared/plugins/contributions/plugin-content-pack-contributions.test.ts": 227,
       "src/shared/plugins/contributions/plugin-custom-editor-contribution.test.ts": 238,
-      "src/shared/plugins/contributions/plugin-execution-profile.test.ts": 164,
       "src/shared/plugins/contributions/plugin-panel-contribution.test.ts": 240,
       "src/shared/plugins/contributions/plugin-status-bar-item-contribution.test.ts": 232,
       "src/shared/plugins/declarative/plugin-declarative-catalog-rich.test.ts": 147,
diff --git a/src/shared/plugins/contributions/plugin-execution-profile.test.ts b/src/shared/plugins/contributions/plugin-execution-profile.test.ts
deleted file mode 100644
index 8a0ea19fc27..00000000000
--- a/src/shared/plugins/contributions/plugin-execution-profile.test.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import { describe, expect, it } from 'vitest'
-import { PLUGIN_MANIFEST_V2_SINCE } from '../manifest/plugin-schema-field-docs'
-import { parsePluginManifest } from '../manifest/plugin-manifest'
-
-function manifestInput(): Record<string, unknown> {
-  return {
-    manifestVersion: 2,
-    execution: 'data',
-    id: 'demo',
-    publisher: 'samples',
-    name: 'Demo',
-    version: '1.2.0',
-    engines: { orca: `>=${PLUGIN_MANIFEST_V2_SINCE}` }
-  }
-}
-
-describe('execution profiles', () => {
-  it('rejects v2 contributions beyond the declared profile', () => {
-    const parsed = parsePluginManifest({
-      ...manifestInput(),
-      execution: 'data',
-      contributes: { commands: [{ id: 'open', title: 'Open', action: 'view.tasks' }] }
-    })
-    expect(parsed).toMatchObject({ ok: false, error: expect.stringContaining('execution') })
-  })
-})
diff --git a/src/shared/plugins/manifest/plugin-manifest.test.ts b/src/shared/plugins/manifest/plugin-manifest.test.ts
index 31ca4c139ca..ed6e13b73c9 100644
--- a/src/shared/plugins/manifest/plugin-manifest.test.ts
+++ b/src/shared/plugins/manifest/plugin-manifest.test.ts
@@ -1,6 +1,5 @@
 import { describe, expect, it } from 'vitest'
-import { PLUGIN_MANIFEST_V2_SINCE } from './plugin-schema-field-docs'
-import { PLUGIN_COMMAND_LIMIT, parsePluginManifest, pluginManifestSchema } from './plugin-manifest'
+import { parsePluginManifest } from './plugin-manifest'
 
 function manifest(overrides: Record<string, unknown> = {}): Record<string, unknown> {
   return {
@@ -54,56 +53,4 @@ describe('pluginManifestSchema boundaries', () => {
       }
     })
   })
-
-  it('refuses format 1 names in format 2', () => {
-    const result = parsePluginManifest({
-      ...manifest({ capabilities: [{ kind: 'storage' }] }),
-      manifestVersion: 2,
-      execution: 'data',
-      engines: { orca: `>=${PLUGIN_MANIFEST_V2_SINCE}` }
-    })
-
-    expect(result.ok).toBe(false)
-  })
-
-  it('rejects duplicate contribution ids', () => {
-    const parsed = pluginManifestSchema.safeParse(
-      manifest({
-        main: 'main.mjs',
-        contributes: {
-          panels: [
-            { id: 'dashboard', title: 'One', entry: 'one.html' },
-            { id: 'dashboard', title: 'Two', entry: 'two.html' }
-          ],
-          commands: [
-            { id: 'run', title: 'One' },
-            { id: 'run', title: 'Two' }
-          ],
-          events: []
-        }
-      })
-    )
-
-    expect(parsed.success).toBe(false)
-    if (!parsed.success) {
-      expect(parsed.error.issues.map((issue) => issue.message)).toEqual(
-        expect.arrayContaining(['duplicate panels id: dashboard', 'duplicate commands id: run'])
-      )
-    }
-  })
-
-  it('caps contribution arrays before they reach renderer or worker registries', () => {
-    const commands = Array.from({ length: PLUGIN_COMMAND_LIMIT + 1 }, (_, index) => ({
-      id: `command-${index}`,
-      title: `Command ${index}`
-    }))
-    expect(
-      parsePluginManifest(
-        manifest({
-          main: 'main.mjs',
-          contributes: { panels: [], commands, events: [] }
-        })
-      ).ok
-    ).toBe(false)
-  })
 })