ci: consolidate short test workers

.github/workflows/ci.yml

@@ -1604,10 +1604,8 @@ jobs:
             group: extension-channels
           - check_name: check-additional-extension-bundled
             group: extension-bundled
-          - check_name: check-additional-extension-package-boundary-compile
-            group: extension-package-boundary-compile
-          - check_name: check-additional-extension-package-boundary-canary
-            group: extension-package-boundary-canary
+          - check_name: check-additional-extension-package-boundary
+            group: extension-package-boundary
           - check_name: check-additional-runtime-topology-gateway
             group: runtime-topology-gateway
           - check_name: check-additional-runtime-topology-architecture
@@ -1668,7 +1666,7 @@ jobs:
 
       - name: Cache extension package boundary artifacts
         id: extension-package-boundary-cache
-        if: matrix.group == 'extension-package-boundary-compile'
+        if: matrix.group == 'extension-package-boundary'
         uses: actions/cache@v5
         with:
           path: |
@@ -1681,7 +1679,7 @@ jobs:
             ${{ runner.os }}-extension-package-boundary-v1-
 
       - name: Preserve extension package boundary cache hit
-        if: matrix.group == 'extension-package-boundary-compile' && steps.extension-package-boundary-cache.outputs.cache-hit == 'true'
+        if: matrix.group == 'extension-package-boundary' && steps.extension-package-boundary-cache.outputs.cache-hit == 'true'
         shell: bash
         run: |
           set -euo pipefail
@@ -1757,10 +1755,8 @@ jobs:
             extension-bundled)
               run_check "lint:extensions:bundled" pnpm run lint:extensions:bundled
               ;;
-            extension-package-boundary-compile)
+            extension-package-boundary)
               run_check "test:extensions:package-boundary:compile" pnpm run test:extensions:package-boundary:compile
-              ;;
-            extension-package-boundary-canary)
               run_check "test:extensions:package-boundary:canary" pnpm run test:extensions:package-boundary:canary
               ;;
             runtime-topology-gateway)

docs/ci.md

@@ -51,7 +51,7 @@ Local changed-lane logic lives in `scripts/changed-lanes.mjs` and is executed by
 
 On pushes, the `checks` matrix adds the push-only `compat-node22` lane. On pull requests, that lane is skipped and the matrix stays focused on the normal test/channel lanes.
 
-The slowest Node test families are split or balanced so each job stays small: channel contracts split registry and core coverage into eight weighted shards each, auto-reply reply command tests split into four include-pattern shards, the other large auto-reply reply prefix groups split into two shards each, and agentic gateway/plugin configs are spread across the existing source-only agentic Node jobs instead of waiting on built artifacts. `check-additional` also separates package-boundary compile/canary work from runtime topology gateway/architecture work.
+The slowest Node test families are split or balanced so each job stays small: channel contracts split registry and core coverage into eight weighted shards each, auto-reply reply tests split by prefix group, and agentic gateway/plugin configs are spread across the existing source-only agentic Node jobs instead of waiting on built artifacts. `check-additional` keeps package-boundary compile/canary work together and separates it from runtime topology gateway/architecture work.
 
 GitHub may mark superseded jobs as `cancelled` when a newer push lands on the same PR or `main` ref. Treat that as CI noise unless the newest run for the same ref is also failing. Aggregate shard checks use `!cancelled() && always()` so they still report normal shard failures but do not queue after the whole workflow has already been superseded.
 The CI concurrency key is versioned (`CI-v2-*`) so a GitHub-side zombie in an old queue group cannot indefinitely block newer main runs.

scripts/lib/ci-node-test-plan.mjs

@@ -67,7 +67,7 @@ function createAutoReplyReplySplitShards() {
 
   const shardCounts = {
     "auto-reply-reply-agent-runner": 1,
-    "auto-reply-reply-commands": 2,
+    "auto-reply-reply-commands": 1,
     "auto-reply-reply-dispatch": 1,
     "auto-reply-reply-state-routing": 1,
   };

test/scripts/ci-node-test-plan.test.ts

@@ -192,12 +192,6 @@ describe("scripts/lib/ci-node-test-plan.mjs", () => {
         requiresDist: false,
         shardName: "auto-reply-reply-commands-a",
       },
-      {
-        checkName: "checks-node-auto-reply-reply-commands-b",
-        configs: ["test/vitest/vitest.auto-reply-reply.config.ts"],
-        requiresDist: false,
-        shardName: "auto-reply-reply-commands-b",
-      },
       {
         checkName: "checks-node-auto-reply-reply-dispatch-a",
         configs: ["test/vitest/vitest.auto-reply-reply.config.ts"],