From d8c127a46254cea3ef8942cd746945dbb1f7af05 Mon Sep 17 00:00:00 2001
From: evanpelle <evanpelle@gmail.com>
Date: Mon, 1 Jun 2026 22:17:21 -0700
Subject: [PATCH] Add deterministic PR gate and label-triggered auto-close
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- pr-gate.yml: closes PRs that don't fit the contribution workflow.
  First match wins: bypass-pr-check label, org/repo member, linked
  `approved` issue with author assigned, or ≤50-line diff. Defaults to
  dry-run via the PR_GATE_DRY_RUN repo variable.
- pr-close-on-label.yml: closes a PR with a polite comment when a
  maintainer applies a triage label (initially `appears-ai-generated`,
  extensible via the COMMENTS lookup).
- scripts/pr-gate/: TypeScript implementation with scoped install
  (Octokit + tsx) so the workflow doesn't pull the full game dep tree.
  35 unit tests cover parseLinkedIssues, each rule, and priority
  ordering.
- PULL_REQUEST_TEMPLATE.md: points contributors at Discord (features)
  and issues (bugs) and surfaces the `approved` requirement.
---
 .github/workflows/pr-close-on-label.yml | 59 +++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 .github/workflows/pr-close-on-label.yml

diff --git a/.github/workflows/pr-close-on-label.yml b/.github/workflows/pr-close-on-label.yml
new file mode 100644
index 000000000..c3f342252
--- /dev/null
+++ b/.github/workflows/pr-close-on-label.yml
@@ -0,0 +1,59 @@
+name: 🏷️ PR Close on Label
+
+on:
+  pull_request_target:
+    types: [labeled]
+
+permissions:
+  pull-requests: write
+  issues: write
+
+jobs:
+  close:
+    name: Close on triage label
+    runs-on: ubuntu-latest
+    timeout-minutes: 2
+    steps:
+      - name: Close PR if label matches
+        uses: actions/github-script@v8
+        with:
+          script: |
+            // Maintainer-applied labels that trigger an auto-close + comment.
+            // Add entries here as new triage categories come up.
+            const COMMENTS = {
+              "appears-ai-generated": (author) => `Hi @${author}, thanks for the contribution.
+
+            This PR was closed because it appears to be AI-generated. We require contributions to be hand-written and understood by their author — if a regression shows up later, we need someone who can debug their own code.
+
+            If this was misclassified, please reach out on our [Discord](https://discord.gg/K9zernJB5z) or comment below.
+
+            See [CONTRIBUTING.md](https://github.com/${context.repo.owner}/${context.repo.repo}/blob/main/CONTRIBUTING.md) for the full contribution process.`,
+            };
+
+            const labelName = context.payload.label?.name;
+            if (!labelName || !(labelName in COMMENTS)) {
+              core.info(`Label "${labelName}" is not a close-on-label trigger, skipping`);
+              return;
+            }
+
+            const pr = context.payload.pull_request;
+            if (pr.state !== "open") {
+              core.info(`PR #${pr.number} is already ${pr.state}, skipping`);
+              return;
+            }
+
+            const body = COMMENTS[labelName](pr.user.login);
+
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: pr.number,
+              body,
+            });
+            await github.rest.pulls.update({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: pr.number,
+              state: "closed",
+            });
+            core.info(`Closed PR #${pr.number} after "${labelName}" label was applied`);