Align plugin marketplace ownership and PR review routing (#4749)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 88f4f5b8-b61a-4f5b-845f-dcc8c82ce55e

.github/risk-tiers.yml

@@ -138,7 +138,7 @@ domains:
     paths: ["extensions/**"]
     pools: ["canvas"]
   plugin:
-    paths: ["plugins/**"]
+    paths: ["plugins/**", ".github/plugin/**"]
     pools: ["plugin"]
   content:
     paths: ["agents/**", "instructions/**", "skills/**", "workflows/**", "hooks/**"]

.github/workflows/label-pr-intent.yml

@@ -68,7 +68,8 @@ jobs:
                 /^skills\//
               ],
               plugin: [
-                /^plugins\//
+                /^plugins\//,
+                /^\.github\/plugin\//
               ],
               agent: [
                 /^agents\/.+\.agent\.md$/

CODEOWNERS

@@ -24,3 +24,6 @@
 /website/**/cli-for-beginners/ @github/awesome-copilot-workshop-reviewers
 /website/**/app-for-beginners/ @github/awesome-copilot-workshop-reviewers
 /website/**/copilot-workshops/ @github/awesome-copilot-workshop-reviewers
+
+# Specific allocations
+/.github/plugin/ @github/awesome-copilot-plugin-reviewers

docs/maintainers/review-routing.md

@@ -11,11 +11,12 @@ The root [`CODEOWNERS`](../../CODEOWNERS) file assigns every path to a team, not
 | `*` (default) | `@github/awesome-copilot-core-maintainers` |
 | `/extensions/` | `@github/awesome-copilot-canvas-reviewers` |
 | `/plugins/` | `@github/awesome-copilot-plugin-reviewers` |
+| `/.github/plugin/` | `@github/awesome-copilot-plugin-reviewers` |
 | `/agents/`, `/instructions/`, `/skills/`, `/hooks/`, `/workflows/` | `@github/awesome-copilot-content-reviewers` |
 | `/.github/` (including GitHub Actions workflows), `/eng/` | `@github/awesome-copilot-core-maintainers` |
 | Copilot workshop content under `/website/` | `@github/awesome-copilot-workshop-reviewers` |
 
-GitHub applies the **last** matching rule, so the workshop entries at the bottom of the file override the default team for their paths. When you edit `CODEOWNERS` by hand:
+GitHub applies the **last** matching rule, so the workshop entries and the `/.github/plugin/` entry override broader rules for their paths. When you edit `CODEOWNERS` by hand:
 
 - Keep the `*` rule and the domain team block at the top of the file.
 - Never add an individual user to the `*` rule.

eng/submission-gate.test.mjs

@@ -33,6 +33,7 @@ import {
   STATUS_MARKER,
   summarizeChecks,
   syncPullRequestStatus,
+  touchedDomains,
 } from "./submission-gate.mjs";
 
 const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
@@ -129,6 +130,12 @@ test("documentation and generated output are low risk", () => {
   assert.equal(result.tier, "low");
 });
 
+test("generated plugin marketplace output is owned by the plugin domain", () => {
+  assert.deepEqual(touchedDomains([file(".github/plugin/marketplace.json")], tiers.domains), [
+    { id: "plugin", pools: ["plugin"] },
+  ]);
+});
+
 test("small modification of an existing resource is low risk", () => {
   const result = classifyRisk({ files: [file("skills/foo/SKILL.md", { changes: 10 })], tiers });
   assert.equal(result.tier, "low");