From cad39d898496353c5352bdb7c59e20854daf5d2d Mon Sep 17 00:00:00 2001
From: "Jonathan D.A. Jewell" <6759885+hyperpolymath@users.noreply.github.com>
Date: Sun, 3 May 2026 16:33:44 +0100
Subject: [PATCH] ci(antipattern): allowlist legit TS bridge/adapter paths

---
 .github/workflows/rsr-antipattern.yml | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/rsr-antipattern.yml b/.github/workflows/rsr-antipattern.yml
index f24ab9d..5162f4a 100644
--- a/.github/workflows/rsr-antipattern.yml
+++ b/.github/workflows/rsr-antipattern.yml
@@ -17,12 +17,29 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Check for TypeScript
         run: |
-          if find . -name "*.ts" -o -name "*.tsx" | grep -v node_modules | grep -q .; then
+          # Allowlist (TS legitimate as a bridge/adapter to a non-ReScript ecosystem):
+          #   bindings/      - language bindings (Deno/TS/AssemblyScript FFI to ReScript core)
+          #   *.d.ts         - TypeScript type declarations for ReScript FFI
+          #   tests/, test/  - Deno test runners verifying ReScript output
+          #   scripts/       - Deno build scripts (bundle, dev-server, etc.)
+          #   mcp-adapter/   - MCP server adapters (MCP protocol is Deno/TS-typed by spec)
+          #   vscode/        - VSCode extensions (TS is the ecosystem default)
+          TS_FILES=$(find . \( -name "*.ts" -o -name "*.tsx" \) \
+            | grep -v node_modules \
+            | grep -v '/bindings/' \
+            | grep -v '\.d\.ts$' \
+            | grep -v '/tests/' \
+            | grep -v '/test/' \
+            | grep -v '/scripts/' \
+            | grep -v '/mcp-adapter/' \
+            | grep -v '/vscode/' \
+            || true)
+          if [ -n "$TS_FILES" ]; then
             echo "❌ TypeScript files detected - use ReScript instead"
-            find . -name "*.ts" -o -name "*.tsx" | grep -v node_modules
+            echo "$TS_FILES"
             exit 1
           fi
-          echo "✅ No TypeScript files"
+          echo "✅ No TypeScript files outside allowlisted bridge/adapter paths"
       - name: Check for Go
         run: |
           if find . -name "*.go" | grep -q .; then