diff --git a/.github/actions/setup-node-env/action.yml b/.github/actions/setup-node-env/action.yml
index 38f6775027d..1066e6835bb 100644
--- a/.github/actions/setup-node-env/action.yml
+++ b/.github/actions/setup-node-env/action.yml
@@ -35,10 +35,26 @@ inputs:
       alongside.
     required: false
     default: "false"
+  runtime-cache-sticky-disk:
+    description: Whether runtime caches should use Blacksmith sticky disks instead of actions/cache.
+    required: false
+    default: "false"
   vitest-fs-cache:
     description: Whether to persist Vitest's experimental filesystem module cache.
     required: false
     default: "false"
+  node-compile-cache:
+    description: Whether to persist Node's on-disk V8 compile cache.
+    required: false
+    default: "false"
+  node-compile-cache-scope:
+    description: Cache namespace for isolating workloads with different writer ownership.
+    required: false
+    default: "test"
+  save-node-compile-cache:
+    description: Whether this job may save the Node compile cache.
+    required: false
+    default: "false"
   save-vitest-fs-cache:
     description: >
       Whether this job may save the shared Vitest filesystem module cache.
@@ -103,46 +119,123 @@ runs:
         # detection, so an incomplete first hydration cannot seed this key.
         commit: if-missing
 
-    - name: Mount Vitest transform cache sticky disk
-      if: inputs.vitest-fs-cache == 'true' && inputs.sticky-disk == 'true' && runner.os != 'Windows'
+    - name: Mount protected Vitest transform seed
+      if: inputs.vitest-fs-cache == 'true' && (inputs.sticky-disk == 'true' || inputs.runtime-cache-sticky-disk == 'true') && github.event_name == 'pull_request' && runner.os != 'Windows'
       uses: useblacksmith/stickydisk@5b350170ae4ef55b536b548ef5f5896e76a6b54f # v1.4.0
       with:
-        # Match dependency-cache trust scoping. Vitest content-addresses module
-        # entries; the lockfile key rotates dependency/plugin generations.
-        key: ${{ github.repository }}-vitest-fs-v1-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml') }}
+        # Same-repository PRs read the protected snapshot but never write it.
+        # Content-addressed misses stay in the PR-scoped overlay below.
+        key: ${{ github.repository }}-vitest-fs-v2-protected-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}
+        path: /var/tmp/openclaw-vitest-fs-protected-seed
+        commit: false
+
+    - name: Mount Vitest transform cache sticky disk
+      if: inputs.vitest-fs-cache == 'true' && (inputs.sticky-disk == 'true' || inputs.runtime-cache-sticky-disk == 'true') && runner.os != 'Windows'
+      uses: useblacksmith/stickydisk@5b350170ae4ef55b536b548ef5f5896e76a6b54f # v1.4.0
+      with:
+        # One stable disk per trust scope. The generation guard below clears
+        # incompatible transform inputs without leaking one disk per lockfile.
+        key: ${{ github.repository }}-vitest-fs-v2-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}
         path: /var/tmp/openclaw-vitest-fs-cache
-        commit: ${{ inputs.save-vitest-fs-cache == 'true' && 'on-change' || 'false' }}
+        # One semantic writer only. Explicit true avoids stickydisk's allocated-
+        # byte heuristic missing equal-size replacements or prune-balanced writes.
+        commit: ${{ inputs.save-vitest-fs-cache == 'true' && 'true' || 'false' }}
 
     - name: Restore and save Vitest transform cache
-      if: inputs.vitest-fs-cache == 'true' && inputs.sticky-disk != 'true' && inputs.save-vitest-fs-cache == 'true' && runner.os != 'Windows'
+      if: inputs.vitest-fs-cache == 'true' && inputs.sticky-disk != 'true' && inputs.runtime-cache-sticky-disk != 'true' && inputs.save-vitest-fs-cache == 'true' && runner.os != 'Windows'
       uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
       with:
         path: /var/tmp/openclaw-vitest-fs-cache
         # actions/cache entries are immutable. One matrix job writes a new
         # run key; every job restores the newest cache through coarse prefixes.
-        key: ${{ github.repository }}-vitest-fs-v1-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml') }}-${{ github.run_id }}
+        key: ${{ github.repository }}-vitest-fs-v2-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml', 'pnpm-workspace.yaml', '**/package.json', '**/tsconfig*.json', 'vitest.config.*', 'test/vitest/**') }}-${{ github.run_id }}-${{ github.run_attempt }}
         restore-keys: |
-          ${{ github.repository }}-vitest-fs-v1-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml') }}-
+          ${{ github.repository }}-vitest-fs-v2-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml', 'pnpm-workspace.yaml', '**/package.json', '**/tsconfig*.json', 'vitest.config.*', 'test/vitest/**') }}-
 
     - name: Restore Vitest transform cache
-      if: inputs.vitest-fs-cache == 'true' && inputs.sticky-disk != 'true' && inputs.save-vitest-fs-cache != 'true' && runner.os != 'Windows'
+      if: inputs.vitest-fs-cache == 'true' && inputs.sticky-disk != 'true' && inputs.runtime-cache-sticky-disk != 'true' && inputs.save-vitest-fs-cache != 'true' && runner.os != 'Windows'
       uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
       with:
         path: /var/tmp/openclaw-vitest-fs-cache
-        key: ${{ github.repository }}-vitest-fs-v1-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml') }}-${{ github.run_id }}
+        key: ${{ github.repository }}-vitest-fs-v2-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml', 'pnpm-workspace.yaml', '**/package.json', '**/tsconfig*.json', 'vitest.config.*', 'test/vitest/**') }}-${{ github.run_id }}-${{ github.run_attempt }}
         restore-keys: |
-          ${{ github.repository }}-vitest-fs-v1-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml') }}-
+          ${{ github.repository }}-vitest-fs-v2-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ hashFiles('pnpm-lock.yaml', 'pnpm-workspace.yaml', '**/package.json', '**/tsconfig*.json', 'vitest.config.*', 'test/vitest/**') }}-
 
     - name: Configure Vitest transform cache
       if: inputs.vitest-fs-cache == 'true' && runner.os != 'Windows'
+      env:
+        CACHE_GENERATION: ${{ hashFiles('pnpm-lock.yaml', 'pnpm-workspace.yaml', '**/package.json', '**/tsconfig*.json', 'vitest.config.*', 'test/vitest/**') }}
+        CACHE_WRITER: ${{ inputs.save-vitest-fs-cache == 'true' && '1' || '0' }}
       shell: bash
       run: |
         set -euo pipefail
         cache_root=/var/tmp/openclaw-vitest-fs-cache
+        seed_root=/var/tmp/openclaw-vitest-fs-protected-seed
+        generation_file="$cache_root/.openclaw-transform-generation"
         mkdir -p "$cache_root"
+        cache_generation=""
+        if [[ -f "$generation_file" ]]; then
+          cache_generation="$(<"$generation_file")"
+        fi
+        cache_entry="$(find "$cache_root" -mindepth 1 -maxdepth 1 -print -quit)"
+        if [[ -n "$cache_entry" ]] && [[ "$cache_generation" != "$CACHE_GENERATION" ]]; then
+          echo "Vitest transform inputs changed; clearing incompatible cache generation"
+          find "$cache_root" -mindepth 1 -maxdepth 1 -exec rm -rf -- {} +
+        fi
+        seed_generation_file="$seed_root/.openclaw-transform-generation"
+        if [[ -f "$seed_generation_file" ]] && [[ "$(<"$seed_generation_file")" == "$CACHE_GENERATION" ]]; then
+          echo "Merging matching protected Vitest transform seed"
+          cp -a --no-clobber "$seed_root"/. "$cache_root"/
+        elif [[ -f "$seed_generation_file" ]]; then
+          echo "Ignoring protected Vitest transform seed from an incompatible generation"
+        fi
+        printf '%s\n' "$CACHE_GENERATION" > "$generation_file"
         # The shard runner treats this as a persistent root and assigns one
         # isolated subdirectory per concurrent Vitest worker.
         echo "OPENCLAW_VITEST_FS_MODULE_CACHE_PATH=$cache_root" >> "$GITHUB_ENV"
+        echo "OPENCLAW_VITEST_FS_MODULE_CACHE_WRITER=$CACHE_WRITER" >> "$GITHUB_ENV"
+
+    - name: Mount Node compile cache sticky disk
+      if: inputs.node-compile-cache == 'true' && (inputs.sticky-disk == 'true' || inputs.runtime-cache-sticky-disk == 'true') && runner.os != 'Windows'
+      uses: useblacksmith/stickydisk@5b350170ae4ef55b536b548ef5f5896e76a6b54f # v1.4.0
+      with:
+        # Trusted PRs read the protected dependency bytecode seed but cannot
+        # publish feature-branch code into it. Node isolates exact versions and
+        # invalidates bytecode when module contents change.
+        key: ${{ github.repository }}-node-compile-v2-${{ inputs.node-compile-cache-scope }}-protected-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}
+        path: /var/tmp/openclaw-node-compile-cache
+        commit: ${{ inputs.save-node-compile-cache == 'true' && github.event_name != 'pull_request' && 'true' || 'false' }}
+
+    - name: Restore and save Node compile cache
+      if: inputs.node-compile-cache == 'true' && inputs.sticky-disk != 'true' && inputs.runtime-cache-sticky-disk != 'true' && inputs.save-node-compile-cache == 'true' && runner.os != 'Windows'
+      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+      with:
+        path: /var/tmp/openclaw-node-compile-cache
+        key: ${{ github.repository }}-node-compile-v2-${{ inputs.node-compile-cache-scope }}-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ github.run_id }}-${{ github.run_attempt }}
+        restore-keys: |
+          ${{ github.repository }}-node-compile-v2-${{ inputs.node-compile-cache-scope }}-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-
+
+    - name: Restore Node compile cache
+      if: inputs.node-compile-cache == 'true' && inputs.sticky-disk != 'true' && inputs.runtime-cache-sticky-disk != 'true' && inputs.save-node-compile-cache != 'true' && runner.os != 'Windows'
+      uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+      with:
+        path: /var/tmp/openclaw-node-compile-cache
+        key: ${{ github.repository }}-node-compile-v2-${{ inputs.node-compile-cache-scope }}-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-${{ github.run_id }}-${{ github.run_attempt }}
+        restore-keys: |
+          ${{ github.repository }}-node-compile-v2-${{ inputs.node-compile-cache-scope }}-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'protected' }}-${{ runner.os }}-${{ runner.arch }}-node-${{ inputs.node-version }}-
+
+    - name: Configure Node compile cache
+      if: inputs.node-compile-cache == 'true' && runner.os != 'Windows'
+      env:
+        CACHE_WRITER: ${{ inputs.save-node-compile-cache == 'true' && ((inputs.sticky-disk != 'true' && inputs.runtime-cache-sticky-disk != 'true') || github.event_name != 'pull_request') && '1' || '0' }}
+      shell: bash
+      run: |
+        set -euo pipefail
+        cache_root=/var/tmp/openclaw-node-compile-cache
+        mkdir -p "$cache_root"
+        echo "NODE_COMPILE_CACHE=$cache_root" >> "$GITHUB_ENV"
+        echo "NODE_COMPILE_CACHE_PORTABLE=1" >> "$GITHUB_ENV"
+        echo "OPENCLAW_NODE_COMPILE_CACHE_WRITER=$CACHE_WRITER" >> "$GITHUB_ENV"
 
     # Post actions run last-in-first-out. Register after stickydisk so this bind
     # is gone before stickydisk flushes, unmounts, and snapshots its filesystem.
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8fac1d60ac9..6276cf6762f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -567,14 +567,23 @@ jobs:
             runNodeFull &&
             changedScopeHasQaImpact &&
             (!frozenTarget || existsSync("extensions/qa-lab/src/ci-smoke-plan.ts"));
-          const nodeTestShards = runNodeFull
-            ? (changedNodeTestShards
-                ? changedNodeTestShards
-                : createNodeTestPlan({
-                    includeReleaseOnlyPluginShards: false,
-                    compact: compactPullRequest,
-                  })
-              ).map((shard) => ({
+          const rawNodeTestShards = runNodeFull
+            ? changedNodeTestShards
+              ? changedNodeTestShards
+              : createNodeTestPlan({
+                  includeReleaseOnlyPluginShards: false,
+                  compact: compactPullRequest,
+                })
+            : [];
+          const assignVitestFsCacheWriter =
+            typeof nodeTestPlan.assignVitestFsCacheWriter === "function"
+              ? nodeTestPlan.assignVitestFsCacheWriter
+              : (shards) =>
+                  shards.map((shard, index) => ({
+                    ...shard,
+                    saveVitestFsCache: index === 0,
+                  }));
+          const nodeTestShards = assignVitestFsCacheWriter(rawNodeTestShards).map((shard) => ({
                 check_name: shard.checkName,
                 runtime: "node",
                 task: "test-shard",
@@ -587,12 +596,12 @@ jobs:
                 runner: shard.runner,
                 timeout_minutes: shard.timeoutMinutes,
                 plan_concurrency: shard.planConcurrency,
+                save_vitest_fs_cache: shard.saveVitestFsCache,
                 targets: shard.targets,
                 requires_go:
                   shard.shardName === "core-tooling" ||
                   shard.groups?.some((group) => group.shard_name.startsWith("core-tooling")),
-              }))
-            : [];
+              }));
           const nodeTestNonDistShards = nodeTestShards.filter((shard) => !shard.requires_dist);
           const nodeTestDistShards = nodeTestShards.filter((shard) => shard.requires_dist);
           // Targeted jobs cannot discover repository-scanning boundary tests
@@ -951,6 +960,10 @@ jobs:
         uses: ./.github/actions/setup-node-env
         with:
           install-bun: "false"
+          node-compile-cache: "true"
+          node-compile-cache-scope: "build"
+          runtime-cache-sticky-disk: ${{ github.event_name != 'workflow_dispatch' && github.repository == 'openclaw/openclaw' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == 'openclaw/openclaw') && 'true' || 'false' }}
+          save-node-compile-cache: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' && 'true' || 'false' }}
 
       - name: Restore build-all step cache
         uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
@@ -1716,11 +1729,15 @@ jobs:
           # Fork PRs must keep actions/cache: sticky snapshots are writable,
           # repository-global state and must never be produced by fork code.
           sticky-disk: ${{ github.event_name != 'workflow_dispatch' && github.repository == 'openclaw/openclaw' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == 'openclaw/openclaw') && 'true' || 'false' }}
+          runtime-cache-sticky-disk: ${{ github.event_name != 'workflow_dispatch' && github.repository == 'openclaw/openclaw' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == 'openclaw/openclaw') && 'true' || 'false' }}
           use-actions-cache: ${{ github.event_name != 'workflow_dispatch' && github.repository == 'openclaw/openclaw' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == 'openclaw/openclaw') && 'false' || 'true' }}
           vitest-fs-cache: "true"
+          node-compile-cache: "true"
+          node-compile-cache-scope: "test"
           # One matrix job commits the shared warm seed. Other jobs restore it
           # read-only, avoiding concurrent sticky-disk or archive writers.
-          save-vitest-fs-cache: ${{ strategy.job-index == 0 && 'true' || 'false' }}
+          save-vitest-fs-cache: ${{ matrix.save_vitest_fs_cache && 'true' || 'false' }}
+          save-node-compile-cache: ${{ matrix.save_vitest_fs_cache && 'true' || 'false' }}
 
       - name: Setup Go for docs i18n
         if: matrix.requires_go == true
diff --git a/.github/workflows/pr-cache-cleanup.yml b/.github/workflows/pr-cache-cleanup.yml
new file mode 100644
index 00000000000..ccec3e7cf98
--- /dev/null
+++ b/.github/workflows/pr-cache-cleanup.yml
@@ -0,0 +1,21 @@
+name: PR Cache Cleanup
+
+on:
+  pull_request_target: # zizmor: ignore[dangerous-triggers] trusted base workflow only; no checkout or untrusted PR code execution
+    types: [closed]
+
+permissions:
+  actions: write
+  contents: read
+
+jobs:
+  cleanup:
+    if: github.repository == 'openclaw/openclaw'
+    runs-on: ubuntu-24.04
+    timeout-minutes: 5
+    env:
+      GH_TOKEN: ${{ github.token }}
+      PR_CACHE_REF: refs/pull/${{ github.event.pull_request.number }}/merge
+    steps:
+      - name: Delete closed PR caches
+        run: gh cache delete --repo "$GITHUB_REPOSITORY" --all --ref "$PR_CACHE_REF" --succeed-on-no-caches
diff --git a/.github/workflows/vitest-cache-warm.yml b/.github/workflows/vitest-cache-warm.yml
new file mode 100644
index 00000000000..3e5389c0752
--- /dev/null
+++ b/.github/workflows/vitest-cache-warm.yml
@@ -0,0 +1,61 @@
+name: Vitest Cache Warm
+
+on:
+  repository_dispatch:
+    types: [vitest-cache-warm]
+  schedule:
+    - cron: "17 8 * * *"
+
+permissions:
+  contents: read
+
+concurrency:
+  group: vitest-cache-warm
+  cancel-in-progress: false
+
+jobs:
+  warm:
+    if: github.repository == 'openclaw/openclaw'
+    runs-on: blacksmith-8vcpu-ubuntu-2404
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+
+      - name: Setup Node environment
+        uses: ./.github/actions/setup-node-env
+        with:
+          install-bun: "false"
+          node-compile-cache: "true"
+          node-compile-cache-scope: "test"
+          runtime-cache-sticky-disk: "true"
+          save-node-compile-cache: "true"
+          save-vitest-fs-cache: "true"
+          sticky-disk: "true"
+          use-actions-cache: "false"
+          vitest-fs-cache: "true"
+
+      - name: Select broad cache seed
+        shell: bash
+        run: |
+          set -euo pipefail
+          node --input-type=module <<'EOF'
+          import { appendFileSync } from "node:fs";
+          import { createNodeTestShards } from "./scripts/lib/ci-node-test-plan.mjs";
+
+          const shard = createNodeTestShards().find((candidate) => candidate.shardName === "core-unit-fast");
+          if (!shard) {
+            throw new Error("core-unit-fast cache seed shard is missing");
+          }
+          appendFileSync(
+            process.env.GITHUB_ENV,
+            [
+              `OPENCLAW_NODE_TEST_CONFIGS_JSON=${JSON.stringify(shard.configs)}`,
+              `OPENCLAW_VITEST_SHARD_NAME=${shard.shardName}`,
+              "OPENCLAW_NODE_TEST_PLAN_CONCURRENCY=1",
+            ].join("\n") + "\n",
+          );
+          EOF
+
+      - name: Warm transform and compile caches
+        run: node scripts/ci-run-node-test-shard.mjs
diff --git a/docs/ci.md b/docs/ci.md
index 8fd9efe4642..9a6ddd78a15 100644
--- a/docs/ci.md
+++ b/docs/ci.md
@@ -114,7 +114,8 @@ The slowest Node test families are split or balanced so each job stays small wit
 - Pull requests on the canonical repository reuse the changed-test resolver against the synthetic merged-tree diff. Precise changes run one targeted Node job; each selected test file gets its own process so stateful suite isolation remains intact. The planner combines sibling tests with import-graph dependents and falls back to the existing 14-job compact full-suite plan for workspace package, package/lockfile, shared harness, split-config, renamed, or deleted changes, public extension-contract changes, tests with special shard setup, partially resolved or empty targets, oversized path or target plans, and planner errors. Targeted plans always retain the full built-artifact boundary gate because its repository scanners cannot be derived from imports. `main` pushes, manual dispatches, and release gates retain the full matrix because canceled superseded `main` runs make a single-push diff insufficient as integration proof.
 - The full Node matrix admits the consistently slow serial tooling and auto-reply command shards first. This keeps the 28-job cap while preventing short alphabetical groups from pushing critical-path work into a later wave.
 - Broad browser, QA, media, and miscellaneous plugin tests use their dedicated Vitest configs instead of the shared plugin catch-all. Include-pattern shards record timing entries using the CI shard name, so `.artifacts/vitest-shard-timings.json` can distinguish a whole config from a filtered shard.
-- Linux Node shard jobs persist Vitest's experimental filesystem module cache. Trusted Blacksmith jobs use the same PR/protected trust scoping as dependency sticky disks; GitHub-hosted and fork jobs use an `actions/cache` fallback with coarse restore prefixes. One deterministic matrix job commits the warm seed while the other jobs restore it read-only, avoiding competing snapshots. Every job receives an isolated cache clone, and the shard runner gives each concurrent Vitest worker its own stable subdirectory so serial plans reuse transforms without sharing live writers. The runner prunes oldest transform entries to 75% after the cache exceeds 2 GiB; lockfile changes also rotate the backing key.
+- Linux Node shard jobs persist Vitest's experimental filesystem module cache. Trusted Blacksmith jobs use PR-scoped writable overlays seeded from the protected snapshot only when their transform-input generations match; GitHub-hosted and fork jobs use an `actions/cache` fallback with coarse restore prefixes. The planner marks the broad `core-unit-fast` graph as the single writer without coupling cache ownership to matrix order, while every other job restores a private read-only clone. Concurrent Vitest workers retain separate live directories. A transform-input fingerprint clears incompatible lockfile, package, tsconfig, and Vitest-config generations inside stable sticky keys. Only the writer scans and prunes the cache to 75% after it exceeds 2 GiB. A non-cancelling daily or default-branch repository-dispatch warmer prevents rapid `main` pushes from starving the protected seed, and closed PR cache archives are deleted.
+- Node shard and build-artifact jobs also restore Node's portable on-disk compile cache. Independent `test` and `build` namespaces prevent their writers from replacing each other's snapshots: the scheduled test warmer owns the protected test seed, while `build-artifacts` publishes the protected build seed only from trusted `main` pushes. PR jobs read protected snapshots without publishing feature-branch bytecode; fallback archives remain PR-scoped. This reuses V8 bytecode for Node-loaded orchestration, build tooling, and external dependencies across different checkout paths, including when only part of the source graph changes. Vitest child processes disable an inherited compile cache because coverage can be enabled inside dynamic configs and V8 coverage can lose source-position precision when scripts are deserialized from bytecode.
 - `check-additional-*` stripes the supplemental boundary guard list (`scripts/run-additional-boundary-checks.mjs`) into one prompt-heavy shard (`check-additional-boundaries-a`, which includes the Codex prompt snapshot drift check) and one combined shard for the remaining stripes (`check-additional-boundaries-bcd`), each running independent guards concurrently and printing per-check timings. Package-boundary compile/canary work stays together, and runtime topology architecture runs separately from the gateway watch coverage embedded in `build-artifacts`.
 - Gateway watch, channel tests, and the core support-boundary shard run concurrently inside `build-artifacts` after `dist/` and `dist-runtime/` are already built.
 
diff --git a/package.json b/package.json
index 1a5a6f8eaeb..2ec175f4f78 100644
--- a/package.json
+++ b/package.json
@@ -2104,7 +2104,7 @@
     "@types/web-push": "3.6.4",
     "@types/ws": "8.18.1",
     "@typescript/native-preview": "7.0.0-dev.20260707.2",
-    "@vitest/coverage-v8": "4.1.9",
+    "@vitest/coverage-v8": "4.1.10",
     "acorn": "8.17.0",
     "esbuild": "0.28.1",
     "fast-glob": "3.3.3",
@@ -2122,7 +2122,7 @@
     "tsx": "4.22.4",
     "unrun": "0.3.1",
     "vite": "8.1.3",
-    "vitest": "4.1.9"
+    "vitest": "4.1.10"
   },
   "optionalDependencies": {
     "sqlite-vec": "0.1.9"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ac50ba84677..1ebc28d867d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -238,7 +238,7 @@ importers:
         version: 0.10.1(signal-polyfill@0.2.2)
       '@copilotkit/aimock':
         specifier: 1.35.0
-        version: 1.35.0(vitest@4.1.9)
+        version: 1.35.0(vitest@4.1.10)
       '@lit-labs/signals':
         specifier: 0.3.0
         version: 0.3.0
@@ -288,8 +288,8 @@ importers:
         specifier: 7.0.0-dev.20260707.2
         version: 7.0.0-dev.20260707.2
       '@vitest/coverage-v8':
-        specifier: 4.1.9
-        version: 4.1.9(@vitest/browser@4.1.9)(vitest@4.1.9)
+        specifier: 4.1.10
+        version: 4.1.10(@vitest/browser@4.1.10)(vitest@4.1.10)
       acorn:
         specifier: 8.17.0
         version: 8.17.0
@@ -342,8 +342,8 @@ importers:
         specifier: 8.1.3
         version: 8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)
       vitest:
-        specifier: 4.1.9
-        version: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+        specifier: 4.1.10
+        version: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
     optionalDependencies:
       sqlite-vec:
         specifier: 0.1.9
@@ -1490,7 +1490,7 @@ importers:
     dependencies:
       '@copilotkit/aimock':
         specifier: 1.35.0
-        version: 1.35.0(vitest@4.1.9)
+        version: 1.35.0(vitest@4.1.10)
       '@modelcontextprotocol/sdk':
         specifier: 1.29.0
         version: 1.29.0(zod@4.4.3)
@@ -2283,11 +2283,11 @@ importers:
         specifier: 14.1.2
         version: 14.1.2
       '@vitest/browser':
-        specifier: 4.1.9
-        version: 4.1.9(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)
+        specifier: 4.1.10
+        version: 4.1.10(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)
       '@vitest/browser-playwright':
-        specifier: 4.1.9
-        version: 4.1.9(playwright@1.61.1)(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)
+        specifier: 4.1.10
+        version: 4.1.10(playwright@1.61.1)(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)
       jsdom:
         specifier: 29.1.1
         version: 29.1.1(@noble/hashes@2.2.0)
@@ -2301,8 +2301,8 @@ importers:
         specifier: 8.1.3
         version: 8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)
       vitest:
-        specifier: 4.1.9
-        version: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+        specifier: 4.1.10
+        version: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
 
 packages:
 
@@ -4956,31 +4956,31 @@ packages:
     resolution: {integrity: sha512-N8/FHc/lmlMDCumMuTXyRHCxlov5KZY6unmJ9QR2GOw+OpROZMBsXYGwE+ZMtvN21ql9+Xb8KhGNBj08IrG3Wg==}
     engines: {node: '>=16', npm: '>=8'}
 
-  '@vitest/browser-playwright@4.1.9':
-    resolution: {integrity: sha512-Bq1rOGf9waevzG3EOkO/dene6bvKTUsZMVg8S1i+WH3JcMjuXEjiahP9rAqZRELUqjBySOJsvvSWqK/B3wjKQw==}
+  '@vitest/browser-playwright@4.1.10':
+    resolution: {integrity: sha512-nMoXGEiRpT7m3W7NsbvrM2aKNwiNHZf+zEpUCvMteGjZFvfT96Q9fh7QyB98dvDWXiKvrLxA7bJ1mCOOv+JQPw==}
     peerDependencies:
       playwright: '*'
-      vitest: 4.1.9
+      vitest: 4.1.10
 
-  '@vitest/browser@4.1.9':
-    resolution: {integrity: sha512-j1BKtWmPcqpMhmx/L9EPLgAJpCb0zKfwoWLmqBbxaogCXHjOwHFSEoHCBfnGtx93xKQwilZ26m+UOsHqHMkRNg==}
+  '@vitest/browser@4.1.10':
+    resolution: {integrity: sha512-UDwuWGwXj646CBx/bQHOaJSX7np0I8JL/UKQYa1e4QrVHH8VdWtx8eaOuf8sy0ShwDgR6NjJAsp5eF6vjF6qng==}
     peerDependencies:
-      vitest: 4.1.9
+      vitest: 4.1.10
 
-  '@vitest/coverage-v8@4.1.9':
-    resolution: {integrity: sha512-G9/lgqibheLVBDRuya45EbsEXTYcWoSG+TLg7i2axuzx0Eq62eXn+aWXyaVdV5vKvFSWd6ywcX8hA7la9Pvu8g==}
+  '@vitest/coverage-v8@4.1.10':
+    resolution: {integrity: sha512-IM49HmthevbgAO4anp1hwtoT9wYe59w0LR00gr+eagHE+ZJ5lK4sLPeO0ubgoJcwLk6dehU3R24N+FbEEKDc8g==}
     peerDependencies:
-      '@vitest/browser': 4.1.9
-      vitest: 4.1.9
+      '@vitest/browser': 4.1.10
+      vitest: 4.1.10
     peerDependenciesMeta:
       '@vitest/browser':
         optional: true
 
-  '@vitest/expect@4.1.9':
-    resolution: {integrity: sha512-vl/rYsUKcBr3SnQn166+XR5ZQcgMx3DQhFWdfli/cWpLnLUmbxZvyrJZotLFUryib+LtArYMSTJ5RbQ57ZqrlA==}
+  '@vitest/expect@4.1.10':
+    resolution: {integrity: sha512-YsCn+qAk1GWjQOWFEsEcL2gNQ0zmVmQu3T03qP6UyjhtmdtwtbuI+DASn/7iQB3HGTXkdBwGddzxPlmiql5vlA==}
 
-  '@vitest/mocker@4.1.9':
-    resolution: {integrity: sha512-EVkXzBjrPGM+cK8/ANWgBrkUCfJfb38/EfTSO8h7pWvKkyPkpWxvR7BkD2MyItMF62C97zAEoqdpUixwR/e+Rw==}
+  '@vitest/mocker@4.1.10':
+    resolution: {integrity: sha512-v0xaezt+DKEmKfaxg133ldzADrwLGd7Ze1MfQQTYfvs8OqZIwbxyxaYURivwV7sWy5fqn3rH5uOrSp07bp44Ow==}
     peerDependencies:
       msw: ^2.4.9
       vite: ^6.0.0 || ^7.0.0 || ^8.0.0
@@ -4990,20 +4990,20 @@ packages:
       vite:
         optional: true
 
-  '@vitest/pretty-format@4.1.9':
-    resolution: {integrity: sha512-s0iufns3iIFitdgm+YR7g1whCAaGtXz459VS9/PqyKDEEFgYIhsHOQmXgIgDuYCt7DeQmiZT0Qe2OA2p4ZPu5A==}
+  '@vitest/pretty-format@4.1.10':
+    resolution: {integrity: sha512-W1HsjSH4MXQ9YfmmhLAoIYf1HRfekQCGngeIgcei6MP5QQGWUe0gkopdZQaVCFO+JDJMrAJGwa5pRpNpvy4P8Q==}
 
-  '@vitest/runner@4.1.9':
-    resolution: {integrity: sha512-KXLMDtc7oe70+3mJfGrPUWPesswH+3sTxAMAMl8DG7I8IUQT4XW718dY5ID3vPUcmlu27CcKfY4P3h3I29SLJg==}
+  '@vitest/runner@4.1.10':
+    resolution: {integrity: sha512-IKI6kpIH+LmpROplyLwBBaCfMgOZOMsygVa6BARD6ahA04VRuJSa6OaVG7kRvSEMD870Vd91rSSw0eegtWyLGg==}
 
-  '@vitest/snapshot@4.1.9':
-    resolution: {integrity: sha512-Jc7RKGNBo8Z28WYIm0Niej4xdSPByRf6mU58VpHQkd6Zh05rlnA+twjbK5HyeIGHxrzsc3mJgS43uM0CZKzaIA==}
+  '@vitest/snapshot@4.1.10':
+    resolution: {integrity: sha512-xRkfOT1qpTAi/Ti4Y1LtfRc3kEuqxGw59eN2jN9pRWMtS/XDevekhcFSqvQqjUNGksfjMJu3Y+oJ+4Ypn2OaJw==}
 
-  '@vitest/spy@4.1.9':
-    resolution: {integrity: sha512-fHpsS6mIi+PiEW+vcRVOMkX1oSaPKne3VOclSFICPcGOmfKgXPU5iAah+wcNcj2xPrCCmfq99IDGf+EojhhvhA==}
+  '@vitest/spy@4.1.10':
+    resolution: {integrity: sha512-PLf/Ugvoq5wO/b4rwYCR1h2PSIdXz7wnkQFMiUpLdtM7l6pqVFcQIBEHyT1+l+cj7mNwAfZHzqXqDyjvOuwbDw==}
 
-  '@vitest/utils@4.1.9':
-    resolution: {integrity: sha512-A51o8ymO5PpqlWNnBP9ZHPXDIpuMtTLlGSjN7la4US+LJzoUMyhwjA5QXlm39JexgwHKW4Xjs8Z2d3dLCXOeuA==}
+  '@vitest/utils@4.1.10':
+    resolution: {integrity: sha512-fy9am/HWxbaGt/Sawrp90vt6Y6jQwf1RX77cz3uwoJwJVMli/e1IEwRPnMNJ7vKfPTwo0diXifkpPvwH9v7nGA==}
 
   '@wasm-audio-decoders/common@9.0.7':
     resolution: {integrity: sha512-WRaUuWSKV7pkttBygml/a6dIEpatq2nnZGFIoPTc5yPLkxL6Wk4YaslPM98OPQvWacvNZ+Py9xROGDtrFBDzag==}
@@ -8133,20 +8133,20 @@ packages:
       yaml:
         optional: true
 
-  vitest@4.1.9:
-    resolution: {integrity: sha512-nE3/LEyc0z87uHYLZebqCUOaJr2hdtuPp7BQ4BosVFnfltxgAvMG08NyrSGlPpOUWvR27c5flSmYFTNr78L9GQ==}
+  vitest@4.1.10:
+    resolution: {integrity: sha512-R9jUTe5S4Qb0HCd4TNqpC7oGcrMssMRGXLW80ubjWsW9VH5GF8y1Y0SFLY9AbqSk6nt0PnOx4H4WNJYZ13GUPw==}
     engines: {node: ^20.0.0 || ^22.0.0 || >=24.0.0}
     hasBin: true
     peerDependencies:
       '@edge-runtime/vm': '*'
       '@opentelemetry/api': ^1.9.0
       '@types/node': ^20.0.0 || ^22.0.0 || >=24.0.0
-      '@vitest/browser-playwright': 4.1.9
-      '@vitest/browser-preview': 4.1.9
-      '@vitest/browser-webdriverio': 4.1.9
-      '@vitest/coverage-istanbul': 4.1.9
-      '@vitest/coverage-v8': 4.1.9
-      '@vitest/ui': 4.1.9
+      '@vitest/browser-playwright': 4.1.10
+      '@vitest/browser-preview': 4.1.10
+      '@vitest/browser-webdriverio': 4.1.10
+      '@vitest/coverage-istanbul': 4.1.10
+      '@vitest/coverage-v8': 4.1.10
+      '@vitest/ui': 4.1.10
       happy-dom: '*'
       jsdom: '*'
       vite: ^6.0.0 || ^7.0.0 || ^8.0.0
@@ -9199,9 +9199,9 @@ snapshots:
   '@colors/colors@1.5.0':
     optional: true
 
-  '@copilotkit/aimock@1.35.0(vitest@4.1.9)':
+  '@copilotkit/aimock@1.35.0(vitest@4.1.10)':
     optionalDependencies:
-      vitest: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      vitest: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
 
   '@create-markdown/preview@2.0.3(shiki@4.3.0)':
     optionalDependencies:
@@ -11244,26 +11244,26 @@ snapshots:
 
   '@urbit/aura@3.0.0': {}
 
-  '@vitest/browser-playwright@4.1.9(playwright@1.61.1)(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)':
+  '@vitest/browser-playwright@4.1.10(playwright@1.61.1)(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)':
     dependencies:
-      '@vitest/browser': 4.1.9(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)
-      '@vitest/mocker': 4.1.9(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      '@vitest/browser': 4.1.10(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)
+      '@vitest/mocker': 4.1.10(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
       playwright: 1.61.1
       tinyrainbow: 3.1.0
-      vitest: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      vitest: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
     transitivePeerDependencies:
       - bufferutil
       - msw
       - utf-8-validate
       - vite
 
-  '@vitest/browser-playwright@4.1.9(playwright@1.61.1)(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)':
+  '@vitest/browser-playwright@4.1.10(playwright@1.61.1)(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)':
     dependencies:
-      '@vitest/browser': 4.1.9(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)
-      '@vitest/mocker': 4.1.9(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      '@vitest/browser': 4.1.10(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)
+      '@vitest/mocker': 4.1.10(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
       playwright: 1.61.1
       tinyrainbow: 3.1.0
-      vitest: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      vitest: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
     transitivePeerDependencies:
       - bufferutil
       - msw
@@ -11271,16 +11271,16 @@ snapshots:
       - vite
     optional: true
 
-  '@vitest/browser@4.1.9(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)':
+  '@vitest/browser@4.1.10(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)':
     dependencies:
       '@blazediff/core': 1.9.1
-      '@vitest/mocker': 4.1.9(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
-      '@vitest/utils': 4.1.9
+      '@vitest/mocker': 4.1.10(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      '@vitest/utils': 4.1.10
       magic-string: 0.30.21
       pngjs: 7.0.0
       sirv: 3.0.2
       tinyrainbow: 3.1.0
-      vitest: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      vitest: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
       ws: 8.21.0
     transitivePeerDependencies:
       - bufferutil
@@ -11288,16 +11288,16 @@ snapshots:
       - utf-8-validate
       - vite
 
-  '@vitest/browser@4.1.9(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)':
+  '@vitest/browser@4.1.10(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)':
     dependencies:
       '@blazediff/core': 1.9.1
-      '@vitest/mocker': 4.1.9(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
-      '@vitest/utils': 4.1.9
+      '@vitest/mocker': 4.1.10(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      '@vitest/utils': 4.1.10
       magic-string: 0.30.21
       pngjs: 7.0.0
       sirv: 3.0.2
       tinyrainbow: 3.1.0
-      vitest: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      vitest: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
       ws: 8.21.0
     transitivePeerDependencies:
       - bufferutil
@@ -11306,10 +11306,10 @@ snapshots:
       - vite
     optional: true
 
-  '@vitest/coverage-v8@4.1.9(@vitest/browser@4.1.9)(vitest@4.1.9)':
+  '@vitest/coverage-v8@4.1.10(@vitest/browser@4.1.10)(vitest@4.1.10)':
     dependencies:
       '@bcoe/v8-coverage': 1.0.2
-      '@vitest/utils': 4.1.9
+      '@vitest/utils': 4.1.10
       ast-v8-to-istanbul: 1.0.4
       istanbul-lib-coverage: 3.2.2
       istanbul-lib-report: 3.0.1
@@ -11318,56 +11318,56 @@ snapshots:
       obug: 2.1.3
       std-env: 4.1.0
       tinyrainbow: 3.1.0
-      vitest: 4.1.9(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      vitest: 4.1.10(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
     optionalDependencies:
-      '@vitest/browser': 4.1.9(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)
+      '@vitest/browser': 4.1.10(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)
 
-  '@vitest/expect@4.1.9':
+  '@vitest/expect@4.1.10':
     dependencies:
       '@standard-schema/spec': 1.1.0
       '@types/chai': 5.2.3
-      '@vitest/spy': 4.1.9
-      '@vitest/utils': 4.1.9
+      '@vitest/spy': 4.1.10
+      '@vitest/utils': 4.1.10
       chai: 6.2.2
       tinyrainbow: 3.1.0
 
-  '@vitest/mocker@4.1.9(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))':
+  '@vitest/mocker@4.1.10(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))':
     dependencies:
-      '@vitest/spy': 4.1.9
+      '@vitest/spy': 4.1.10
       estree-walker: 3.0.3
       magic-string: 0.30.21
     optionalDependencies:
       vite: 8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)
 
-  '@vitest/mocker@4.1.9(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))':
+  '@vitest/mocker@4.1.10(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))':
     dependencies:
-      '@vitest/spy': 4.1.9
+      '@vitest/spy': 4.1.10
       estree-walker: 3.0.3
       magic-string: 0.30.21
     optionalDependencies:
       vite: 8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)
 
-  '@vitest/pretty-format@4.1.9':
+  '@vitest/pretty-format@4.1.10':
     dependencies:
       tinyrainbow: 3.1.0
 
-  '@vitest/runner@4.1.9':
+  '@vitest/runner@4.1.10':
     dependencies:
-      '@vitest/utils': 4.1.9
+      '@vitest/utils': 4.1.10
       pathe: 2.0.3
 
-  '@vitest/snapshot@4.1.9':
+  '@vitest/snapshot@4.1.10':
     dependencies:
-      '@vitest/pretty-format': 4.1.9
-      '@vitest/utils': 4.1.9
+      '@vitest/pretty-format': 4.1.10
+      '@vitest/utils': 4.1.10
       magic-string: 0.30.21
       pathe: 2.0.3
 
-  '@vitest/spy@4.1.9': {}
+  '@vitest/spy@4.1.10': {}
 
-  '@vitest/utils@4.1.9':
+  '@vitest/utils@4.1.10':
     dependencies:
-      '@vitest/pretty-format': 4.1.9
+      '@vitest/pretty-format': 4.1.10
       convert-source-map: 2.0.0
       tinyrainbow: 3.1.0
 
@@ -14927,15 +14927,15 @@ snapshots:
       tsx: 4.22.4
       yaml: 2.9.0
 
-  vitest@4.1.9(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)):
+  vitest@4.1.10(@opentelemetry/api@1.9.1)(@types/node@24.13.2)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)):
     dependencies:
-      '@vitest/expect': 4.1.9
-      '@vitest/mocker': 4.1.9(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
-      '@vitest/pretty-format': 4.1.9
-      '@vitest/runner': 4.1.9
-      '@vitest/snapshot': 4.1.9
-      '@vitest/spy': 4.1.9
-      '@vitest/utils': 4.1.9
+      '@vitest/expect': 4.1.10
+      '@vitest/mocker': 4.1.10(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      '@vitest/pretty-format': 4.1.10
+      '@vitest/runner': 4.1.10
+      '@vitest/snapshot': 4.1.10
+      '@vitest/spy': 4.1.10
+      '@vitest/utils': 4.1.10
       es-module-lexer: 2.3.0
       expect-type: 1.4.0
       magic-string: 0.30.21
@@ -14952,21 +14952,21 @@ snapshots:
     optionalDependencies:
       '@opentelemetry/api': 1.9.1
       '@types/node': 24.13.2
-      '@vitest/browser-playwright': 4.1.9(playwright@1.61.1)(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)
-      '@vitest/coverage-v8': 4.1.9(@vitest/browser@4.1.9)(vitest@4.1.9)
+      '@vitest/browser-playwright': 4.1.10(playwright@1.61.1)(vite@8.1.3(@types/node@24.13.2)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)
+      '@vitest/coverage-v8': 4.1.10(@vitest/browser@4.1.10)(vitest@4.1.10)
       jsdom: 29.1.1(@noble/hashes@2.2.0)
     transitivePeerDependencies:
       - msw
 
-  vitest@4.1.9(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.9)(@vitest/coverage-v8@4.1.9)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)):
+  vitest@4.1.10(@opentelemetry/api@1.9.1)(@types/node@26.1.0)(@vitest/browser-playwright@4.1.10)(@vitest/coverage-v8@4.1.10)(jsdom@29.1.1(@noble/hashes@2.2.0))(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0)):
     dependencies:
-      '@vitest/expect': 4.1.9
-      '@vitest/mocker': 4.1.9(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
-      '@vitest/pretty-format': 4.1.9
-      '@vitest/runner': 4.1.9
-      '@vitest/snapshot': 4.1.9
-      '@vitest/spy': 4.1.9
-      '@vitest/utils': 4.1.9
+      '@vitest/expect': 4.1.10
+      '@vitest/mocker': 4.1.10(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
+      '@vitest/pretty-format': 4.1.10
+      '@vitest/runner': 4.1.10
+      '@vitest/snapshot': 4.1.10
+      '@vitest/spy': 4.1.10
+      '@vitest/utils': 4.1.10
       es-module-lexer: 2.3.0
       expect-type: 1.4.0
       magic-string: 0.30.21
@@ -14983,8 +14983,8 @@ snapshots:
     optionalDependencies:
       '@opentelemetry/api': 1.9.1
       '@types/node': 26.1.0
-      '@vitest/browser-playwright': 4.1.9(playwright@1.61.1)(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.9)
-      '@vitest/coverage-v8': 4.1.9(@vitest/browser@4.1.9)(vitest@4.1.9)
+      '@vitest/browser-playwright': 4.1.10(playwright@1.61.1)(vite@8.1.3(@types/node@26.1.0)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))(vitest@4.1.10)
+      '@vitest/coverage-v8': 4.1.10(@vitest/browser@4.1.10)(vitest@4.1.10)
       jsdom: 29.1.1(@noble/hashes@2.2.0)
     transitivePeerDependencies:
       - msw
diff --git a/scripts/ci-run-node-test-shard.d.mts b/scripts/ci-run-node-test-shard.d.mts
index 77db3e00145..54e1dc390f9 100644
--- a/scripts/ci-run-node-test-shard.d.mts
+++ b/scripts/ci-run-node-test-shard.d.mts
@@ -45,6 +45,8 @@ export function runShardPlans(
   options?: {
     concurrency?: number;
     env?: Record<string, string | undefined>;
+    fsModuleCacheMaxBytes?: number;
+    nodeCompileCacheMaxBytes?: number;
     runChild?: (
       args: string[],
       childEnv: Record<string, string | undefined>,
diff --git a/scripts/ci-run-node-test-shard.mjs b/scripts/ci-run-node-test-shard.mjs
index e013258a981..7f6c0330f9c 100644
--- a/scripts/ci-run-node-test-shard.mjs
+++ b/scripts/ci-run-node-test-shard.mjs
@@ -14,9 +14,14 @@ import { acquireLocalHeavyCheckLockSync } from "./lib/local-heavy-check-runtime.
 // stacking outer and inner parallelism oversubscribes the 4 vCPU runner class.
 const PLAN_CONCURRENCY = 2;
 const FS_MODULE_CACHE_PATH_ENV_KEY = "OPENCLAW_VITEST_FS_MODULE_CACHE_PATH";
+const FS_MODULE_CACHE_WRITER_ENV_KEY = "OPENCLAW_VITEST_FS_MODULE_CACHE_WRITER";
+const NODE_COMPILE_CACHE_PATH_ENV_KEY = "NODE_COMPILE_CACHE";
+const NODE_COMPILE_CACHE_WRITER_ENV_KEY = "OPENCLAW_NODE_COMPILE_CACHE_WRITER";
 const FS_MODULE_CACHE_MAX_BYTES = 2 * 1024 * 1024 * 1024;
+const NODE_COMPILE_CACHE_MAX_BYTES = 1024 * 1024 * 1024;
 const FS_MODULE_CACHE_PRUNE_TARGET_RATIO = 0.75;
 const FS_MODULE_CACHE_METADATA_FILE = "_metadata.json";
+const FS_MODULE_CACHE_GENERATION_FILE = ".openclaw-transform-generation";
 
 function parseJsonEnv(env, name, fallback = null) {
   try {
@@ -115,7 +120,10 @@ export function pruneFsModuleCache(root, maxBytes = FS_MODULE_CACHE_MAX_BYTES) {
       }
       const fileStat = statSync(filePath);
       totalBytes += fileStat.size;
-      if (entry.name !== FS_MODULE_CACHE_METADATA_FILE) {
+      if (
+        entry.name !== FS_MODULE_CACHE_METADATA_FILE &&
+        entry.name !== FS_MODULE_CACHE_GENERATION_FILE
+      ) {
         files.push({ filePath, mtimeMs: fileStat.mtimeMs, size: fileStat.size });
       }
     }
@@ -216,6 +224,7 @@ export async function runShardPlans(plans, options = {}) {
   const runner = options.runChild ?? runChild;
   const scratchDir = options.scratchDir ?? mkdtempSync(join(tmpdir(), "openclaw-node-shard-"));
   const persistentCacheRoot = baseEnv[FS_MODULE_CACHE_PATH_ENV_KEY]?.trim();
+  const nodeCompileCacheRoot = baseEnv[NODE_COMPILE_CACHE_PATH_ENV_KEY]?.trim();
 
   let nextIndex = 0;
   let exitCode = 0;
@@ -243,16 +252,30 @@ export async function runShardPlans(plans, options = {}) {
     }
   });
   await Promise.all(workers);
-  if (persistentCacheRoot) {
+  if (persistentCacheRoot && baseEnv[FS_MODULE_CACHE_WRITER_ENV_KEY] === "1") {
     try {
-      const pruned = pruneFsModuleCache(persistentCacheRoot);
-      if (pruned.removedFiles > 0) {
-        process.stdout.write(
-          `[shard:cache] pruned ${pruned.removedFiles} files (${pruned.beforeBytes} -> ${pruned.afterBytes} bytes)\n`,
-        );
-      }
+      const pruned = pruneFsModuleCache(
+        persistentCacheRoot,
+        options.fsModuleCacheMaxBytes ?? FS_MODULE_CACHE_MAX_BYTES,
+      );
+      process.stdout.write(
+        `[shard:cache] vitest ${pruned.beforeBytes} -> ${pruned.afterBytes} bytes; removed ${pruned.removedFiles} files\n`,
+      );
     } catch (error) {
-      console.warn(`[shard:cache] failed to prune persistent cache: ${String(error)}`);
+      console.warn(`[shard:cache] failed to prune Vitest cache: ${String(error)}`);
+    }
+  }
+  if (nodeCompileCacheRoot && baseEnv[NODE_COMPILE_CACHE_WRITER_ENV_KEY] === "1") {
+    try {
+      const pruned = pruneFsModuleCache(
+        nodeCompileCacheRoot,
+        options.nodeCompileCacheMaxBytes ?? NODE_COMPILE_CACHE_MAX_BYTES,
+      );
+      process.stdout.write(
+        `[shard:cache] node-compile ${pruned.beforeBytes} -> ${pruned.afterBytes} bytes; removed ${pruned.removedFiles} files\n`,
+      );
+    } catch (error) {
+      console.warn(`[shard:cache] failed to prune Node compile cache: ${String(error)}`);
     }
   }
   return exitCode;
diff --git a/scripts/lib/ci-node-test-plan.d.mts b/scripts/lib/ci-node-test-plan.d.mts
index 6f9ee258296..c49b757b85a 100644
--- a/scripts/lib/ci-node-test-plan.d.mts
+++ b/scripts/lib/ci-node-test-plan.d.mts
@@ -18,6 +18,7 @@ export type NodeTestShard = {
   groups?: NodeTestShardGroup[];
   timeoutMinutes?: number;
   planConcurrency?: number;
+  saveVitestFsCache?: boolean;
 };
 
 export type NodeTestPlanOptions = {
@@ -36,3 +37,6 @@ export function createNodeTestShardBundles(
   options: NodeTestPlanOptions & { compact: true },
 ): CompactNodeTestShard[];
 export function createNodeTestShardBundles(options?: NodeTestPlanOptions): NodeTestShard[];
+export function assignVitestFsCacheWriter<T extends Pick<NodeTestShard, "shardName" | "groups">>(
+  shards: T[],
+): Array<T & { saveVitestFsCache: boolean }>;
diff --git a/scripts/lib/ci-node-test-plan.mjs b/scripts/lib/ci-node-test-plan.mjs
index 87ef06f1af7..72f88f90d17 100644
--- a/scripts/lib/ci-node-test-plan.mjs
+++ b/scripts/lib/ci-node-test-plan.mjs
@@ -1419,6 +1419,24 @@ export function createNodeTestShardBundles(options = {}) {
   return [...unbundled, ...bundled].toSorted(compareFullNodeTestAdmissionOrder);
 }
 
+/**
+ * Mark one semantic cache producer without coupling persistence to matrix order.
+ * The broad core unit graph is shared by most shards; precise changed plans
+ * fall back to their first (normally only) job.
+ */
+export function assignVitestFsCacheWriter(shards) {
+  const preferredIndex = shards.findIndex(
+    (shard) =>
+      shard.shardName === "core-unit-fast" ||
+      shard.groups?.some((group) => group.shard_name === "core-unit-fast"),
+  );
+  const writerIndex = preferredIndex >= 0 ? preferredIndex : shards.length > 0 ? 0 : -1;
+  return shards.map((shard, index) => ({
+    ...shard,
+    saveVitestFsCache: index === writerIndex,
+  }));
+}
+
 function createCompactNodeTestShardBundles(options = {}) {
   const shards = createNodeTestShards(options);
   const groupsByRunner = new Map();
diff --git a/scripts/run-vitest.mjs b/scripts/run-vitest.mjs
index be657c36276..1f9cf0c5df5 100644
--- a/scripts/run-vitest.mjs
+++ b/scripts/run-vitest.mjs
@@ -350,25 +350,39 @@ function resolveExplicitVitestMode(argv) {
   return mode;
 }
 
+function resolveVitestCompileCacheSafeEnv(env) {
+  if (!env.NODE_COMPILE_CACHE && !env.NODE_COMPILE_CACHE_PORTABLE) {
+    return env;
+  }
+  // Coverage can be enabled inside a dynamic Vitest config, which this wrapper
+  // cannot know before spawning. Keep the cache for orchestration/build tools,
+  // but never let a Vitest child deserialize bytecode into V8 coverage.
+  const spawnEnv = { ...env, NODE_DISABLE_COMPILE_CACHE: "1" };
+  delete spawnEnv.NODE_COMPILE_CACHE;
+  delete spawnEnv.NODE_COMPILE_CACHE_PORTABLE;
+  return spawnEnv;
+}
+
 /**
  * Adds default watchdog env for non-watch Vitest runs.
  */
 export function resolveRunVitestSpawnEnv(env = process.env, argv = []) {
+  const baseEnv = resolveVitestCompileCacheSafeEnv(env);
   const explicitMode = resolveExplicitVitestMode(argv);
   if (explicitMode === "watch") {
-    return env;
+    return baseEnv;
   }
-  if (explicitMode !== "run" && !isTruthyEnvValue(env.CI)) {
-    return env;
+  if (explicitMode !== "run" && !isTruthyEnvValue(baseEnv.CI)) {
+    return baseEnv;
   }
   const defaultTimeoutMs = resolveDefaultVitestNoOutputTimeoutMs(argv);
-  const hasTimeout = Object.hasOwn(env, VITEST_NO_OUTPUT_TIMEOUT_ENV_KEY);
+  const hasTimeout = Object.hasOwn(baseEnv, VITEST_NO_OUTPUT_TIMEOUT_ENV_KEY);
   const timeoutMs = hasTimeout
-    ? parsePositiveInt(env[VITEST_NO_OUTPUT_TIMEOUT_ENV_KEY])
+    ? parsePositiveInt(baseEnv[VITEST_NO_OUTPUT_TIMEOUT_ENV_KEY])
     : defaultTimeoutMs;
-  const hasHeartbeat = Object.hasOwn(env, VITEST_NO_OUTPUT_HEARTBEAT_ENV_KEY);
+  const hasHeartbeat = Object.hasOwn(baseEnv, VITEST_NO_OUTPUT_HEARTBEAT_ENV_KEY);
   return {
-    ...env,
+    ...baseEnv,
     ...(!hasTimeout ? { [VITEST_NO_OUTPUT_TIMEOUT_ENV_KEY]: String(defaultTimeoutMs) } : {}),
     ...(!hasHeartbeat && timeoutMs !== null && DEFAULT_VITEST_NO_OUTPUT_HEARTBEAT_MS < timeoutMs
       ? { [VITEST_NO_OUTPUT_HEARTBEAT_ENV_KEY]: String(DEFAULT_VITEST_NO_OUTPUT_HEARTBEAT_MS) }
diff --git a/test/scripts/ci-node-test-plan.test.ts b/test/scripts/ci-node-test-plan.test.ts
index c52fba7fb26..f9c85424f2c 100644
--- a/test/scripts/ci-node-test-plan.test.ts
+++ b/test/scripts/ci-node-test-plan.test.ts
@@ -4,8 +4,10 @@ import { join, relative, resolve } from "node:path";
 import fg from "fast-glob";
 import { describe, expect, it } from "vitest";
 import {
+  assignVitestFsCacheWriter,
   createNodeTestShardBundles,
   createNodeTestShards,
+  type NodeTestShard,
 } from "../../scripts/lib/ci-node-test-plan.mjs";
 import { expectNoNodeFsScans } from "../../src/test-utils/fs-scan-assertions.js";
 import { listGitTrackedFiles, sortRepoPaths, toRepoPath } from "../../src/test-utils/repo-files.js";
@@ -107,6 +109,40 @@ function isGatewayServerTestFile(file: string): boolean {
 }
 
 describe("scripts/lib/ci-node-test-plan.mjs", () => {
+  it("assigns one semantic Vitest cache writer without changing shard order", () => {
+    const full = createNodeTestShardBundles({ includeReleaseOnlyPluginShards: false });
+    const compact = createNodeTestShardBundles({
+      includeReleaseOnlyPluginShards: false,
+      compact: true,
+    });
+
+    const expectWriter = (plan: Array<Pick<NodeTestShard, "groups" | "shardName">>) => {
+      const marked = assignVitestFsCacheWriter(plan);
+      expect(marked.map((shard) => shard.shardName)).toEqual(plan.map((shard) => shard.shardName));
+      expect(marked.filter((shard) => shard.saveVitestFsCache)).toHaveLength(1);
+      expect(
+        marked.find((shard) => shard.saveVitestFsCache)?.shardName === "core-unit-fast" ||
+          marked
+            .find((shard) => shard.saveVitestFsCache)
+            ?.groups?.some((group) => group.shard_name === "core-unit-fast"),
+      ).toBe(true);
+    };
+    expectWriter(full);
+    expectWriter(compact);
+
+    expect(assignVitestFsCacheWriter([])).toEqual([]);
+    const changedOnly = {
+      checkName: "checks-node-changed-only",
+      configs: ["test/vitest/vitest.unit.config.ts"],
+      requiresDist: false,
+      runner: DEFAULT_NODE_TEST_RUNNER,
+      shardName: "changed-only",
+    };
+    expect(assignVitestFsCacheWriter([changedOnly])).toEqual([
+      { ...changedOnly, saveVitestFsCache: true },
+    ]);
+  });
+
   it("creates split shards without walking test roots", () => {
     const payload = expectNoNodeFsScans<{
       includePatterns: number;
diff --git a/test/scripts/ci-run-node-test-shard.test.ts b/test/scripts/ci-run-node-test-shard.test.ts
index 6e7d4f73d8a..c5dcd08e3b5 100644
--- a/test/scripts/ci-run-node-test-shard.test.ts
+++ b/test/scripts/ci-run-node-test-shard.test.ts
@@ -199,24 +199,53 @@ describe("scripts/ci-run-node-test-shard.mjs", () => {
     const slot = path.join(persistentRoot, "vitest-cache-0");
     mkdirSync(slot, { recursive: true });
     const metadata = path.join(slot, "_metadata.json");
+    const generation = path.join(persistentRoot, ".openclaw-transform-generation");
     const oldest = path.join(slot, "oldest");
     const newest = path.join(slot, "newest");
     writeFileSync(metadata, "{}", "utf8");
+    writeFileSync(generation, "g", "utf8");
     writeFileSync(oldest, "aaaaaaaa", "utf8");
     writeFileSync(newest, "bbbbbbbb", "utf8");
     utimesSync(oldest, new Date(1_000), new Date(1_000));
     utimesSync(newest, new Date(2_000), new Date(2_000));
 
     expect(pruneFsModuleCache(persistentRoot, 16)).toEqual({
-      beforeBytes: 18,
-      afterBytes: 10,
+      beforeBytes: 19,
+      afterBytes: 11,
       removedFiles: 1,
     });
     expect(existsSync(metadata)).toBe(true);
+    expect(existsSync(generation)).toBe(true);
     expect(existsSync(oldest)).toBe(false);
     expect(existsSync(newest)).toBe(true);
   });
 
+  it("prunes persistent caches only in the designated writer job", async () => {
+    const persistentRoot = makeScratchDir();
+    const transform = path.join(persistentRoot, "vitest-cache-0", "entry");
+    mkdirSync(path.dirname(transform), { recursive: true });
+    writeFileSync(transform, "cached", "utf8");
+    const plans = resolveShardPlans({
+      OPENCLAW_NODE_TEST_CONFIGS_JSON: JSON.stringify(["test/vitest/vitest.unit.config.ts"]),
+    });
+    const run = (writer: string) =>
+      runShardPlans(plans, {
+        concurrency: 1,
+        env: {
+          OPENCLAW_VITEST_FS_MODULE_CACHE_PATH: persistentRoot,
+          OPENCLAW_VITEST_FS_MODULE_CACHE_WRITER: writer,
+        },
+        fsModuleCacheMaxBytes: 0,
+        runChild: async () => 0,
+        scratchDir: makeScratchDir(),
+      });
+
+    await run("0");
+    expect(existsSync(transform)).toBe(true);
+    await run("1");
+    expect(existsSync(transform)).toBe(false);
+  });
+
   it("stops scheduling new plans after a failure and reports the first failing code", async () => {
     const scratchDir = makeScratchDir();
     const started: string[] = [];
diff --git a/test/scripts/ci-workflow-guards.test.ts b/test/scripts/ci-workflow-guards.test.ts
index d074a31eb9f..79b3f7680a7 100644
--- a/test/scripts/ci-workflow-guards.test.ts
+++ b/test/scripts/ci-workflow-guards.test.ts
@@ -1777,7 +1777,7 @@ describe("ci workflow guards", () => {
     }
   });
 
-  it("persists isolated Vitest transform caches for Linux Node shards", () => {
+  it("persists isolated transform and compile caches with one semantic writer", () => {
     const workflow = readCiWorkflow();
     const nodeTestJob = workflow.jobs["checks-node-core-test-nondist-shard"];
     const setupNodeStep = nodeTestJob.steps.find(
@@ -1787,6 +1787,9 @@ describe("ci workflow guards", () => {
     const stickyStep = action.runs.steps.find(
       (step: WorkflowStep) => step.name === "Mount Vitest transform cache sticky disk",
     );
+    const protectedSeedStep = action.runs.steps.find(
+      (step: WorkflowStep) => step.name === "Mount protected Vitest transform seed",
+    );
     const writerStep = action.runs.steps.find(
       (step: WorkflowStep) => step.name === "Restore and save Vitest transform cache",
     );
@@ -1796,32 +1799,118 @@ describe("ci workflow guards", () => {
     const configureStep = action.runs.steps.find(
       (step: WorkflowStep) => step.name === "Configure Vitest transform cache",
     );
+    const compileStickyStep = action.runs.steps.find(
+      (step: WorkflowStep) => step.name === "Mount Node compile cache sticky disk",
+    );
+    const compileWriterStep = action.runs.steps.find(
+      (step: WorkflowStep) => step.name === "Restore and save Node compile cache",
+    );
+    const compileReaderStep = action.runs.steps.find(
+      (step: WorkflowStep) => step.name === "Restore Node compile cache",
+    );
+    const compileConfigureStep = action.runs.steps.find(
+      (step: WorkflowStep) => step.name === "Configure Node compile cache",
+    );
+    const buildSetupNodeStep = workflow.jobs["build-artifacts"].steps.find(
+      (step: WorkflowStep) => step.name === "Setup Node environment",
+    );
 
     expect(setupNodeStep.with).toMatchObject({
+      "node-compile-cache": "true",
+      "node-compile-cache-scope": "test",
       "vitest-fs-cache": "true",
-      "save-vitest-fs-cache": "${{ strategy.job-index == 0 && 'true' || 'false' }}",
+      "save-node-compile-cache": "${{ matrix.save_vitest_fs_cache && 'true' || 'false' }}",
+      "save-vitest-fs-cache": "${{ matrix.save_vitest_fs_cache && 'true' || 'false' }}",
     });
     expect(action.inputs["vitest-fs-cache"].default).toBe("false");
     expect(action.inputs["save-vitest-fs-cache"].default).toBe("false");
+    expect(action.inputs["node-compile-cache"].default).toBe("false");
+    expect(action.inputs["node-compile-cache-scope"].default).toBe("test");
+    expect(action.inputs["save-node-compile-cache"].default).toBe("false");
+    expect(protectedSeedStep).toMatchObject({
+      uses: "useblacksmith/stickydisk@5b350170ae4ef55b536b548ef5f5896e76a6b54f",
+      with: {
+        path: "/var/tmp/openclaw-vitest-fs-protected-seed",
+        commit: false,
+      },
+    });
+    expect(protectedSeedStep.if).toContain("github.event_name == 'pull_request'");
     expect(stickyStep).toMatchObject({
       uses: "useblacksmith/stickydisk@5b350170ae4ef55b536b548ef5f5896e76a6b54f",
       with: {
         path: "/var/tmp/openclaw-vitest-fs-cache",
-        commit: "${{ inputs.save-vitest-fs-cache == 'true' && 'on-change' || 'false' }}",
+        commit: "${{ inputs.save-vitest-fs-cache == 'true' && 'true' || 'false' }}",
       },
     });
     expect(stickyStep.if).toContain("inputs.sticky-disk == 'true'");
-    expect(stickyStep.with.key).toContain("vitest-fs-v1-");
+    expect(stickyStep.with.key).toContain("vitest-fs-v2-");
     expect(stickyStep.with.key).toContain("format('pr-{0}', github.event.pull_request.number)");
-    expect(stickyStep.with.key).toContain("hashFiles('pnpm-lock.yaml')");
+    expect(stickyStep.with.key).not.toContain("hashFiles");
     expect(writerStep.uses).toBe("actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae");
     expect(writerStep.if).toContain("inputs.save-vitest-fs-cache == 'true'");
     expect(writerStep.with.key).toContain("github.run_id");
-    expect(writerStep.with["restore-keys"]).toContain("hashFiles('pnpm-lock.yaml')");
+    expect(writerStep.with.key).toContain("github.run_attempt");
+    expect(writerStep.with["restore-keys"]).toContain("**/tsconfig*.json");
     expect(readerStep.uses).toBe(CACHE_V5);
     expect(readerStep.if).toContain("inputs.save-vitest-fs-cache != 'true'");
     expect(readerStep.with["restore-keys"]).toBe(writerStep.with["restore-keys"]);
     expect(configureStep.run).toContain("OPENCLAW_VITEST_FS_MODULE_CACHE_PATH=$cache_root");
+    expect(configureStep.run).toContain(".openclaw-transform-generation");
+    expect(configureStep.run).toContain('"$(<"$seed_generation_file")" == "$CACHE_GENERATION"');
+    expect(configureStep.run).toContain("Ignoring protected Vitest transform seed");
+    expect(configureStep.run).toContain("OPENCLAW_VITEST_FS_MODULE_CACHE_WRITER=");
+    expect(compileStickyStep.with).toMatchObject({
+      path: "/var/tmp/openclaw-node-compile-cache",
+      commit:
+        "${{ inputs.save-node-compile-cache == 'true' && github.event_name != 'pull_request' && 'true' || 'false' }}",
+    });
+    expect(compileStickyStep.with.key).toContain(
+      "node-compile-v2-${{ inputs.node-compile-cache-scope }}-protected-",
+    );
+    expect(compileWriterStep.with.key).toContain(
+      "node-compile-v2-${{ inputs.node-compile-cache-scope }}-",
+    );
+    expect(compileWriterStep.with.key).toContain("github.run_attempt");
+    expect(compileReaderStep.with["restore-keys"]).toBe(compileWriterStep.with["restore-keys"]);
+    expect(compileConfigureStep.run).toContain("NODE_COMPILE_CACHE=$cache_root");
+    expect(compileConfigureStep.run).toContain("NODE_COMPILE_CACHE_PORTABLE=1");
+    expect(buildSetupNodeStep.with).toMatchObject({
+      "node-compile-cache": "true",
+      "node-compile-cache-scope": "build",
+      "save-node-compile-cache":
+        "${{ github.event_name == 'push' && github.ref == 'refs/heads/main' && 'true' || 'false' }}",
+    });
+    expect(buildSetupNodeStep.with["node-compile-cache-scope"]).not.toBe(
+      setupNodeStep.with["node-compile-cache-scope"],
+    );
+  });
+
+  it("warms protected caches without main-run cancellation and cleans closed PR archives", () => {
+    const warmerSource = readFileSync(".github/workflows/vitest-cache-warm.yml", "utf8");
+    const warmer = parse(warmerSource);
+    const cleanup = parse(readFileSync(".github/workflows/pr-cache-cleanup.yml", "utf8"));
+    const warmerSetup = warmer.jobs.warm.steps.find(
+      (step: WorkflowStep) => step.name === "Setup Node environment",
+    );
+
+    expect(warmer.concurrency["cancel-in-progress"]).toBe(false);
+    expect(warmer.on.workflow_dispatch).toBeUndefined();
+    expect(warmer.on.repository_dispatch.types).toEqual(["vitest-cache-warm"]);
+    expect(warmer.jobs.warm.if).toBe("github.repository == 'openclaw/openclaw'");
+    expect(warmerSource).toContain('cron: "17 8 * * *"');
+    expect(warmerSource).toContain('candidate.shardName === "core-unit-fast"');
+    expect(warmerSetup.with).toMatchObject({
+      "node-compile-cache-scope": "test",
+      "save-node-compile-cache": "true",
+      "save-vitest-fs-cache": "true",
+      "sticky-disk": "true",
+      "vitest-fs-cache": "true",
+    });
+    expect(cleanup.permissions.actions).toBe("write");
+    expect(cleanup.on.pull_request_target.types).toEqual(["closed"]);
+    expect(cleanup.on.pull_request).toBeUndefined();
+    expect(cleanup.jobs.cleanup.steps[0].run).toContain("gh cache delete");
+    expect(cleanup.jobs.cleanup.steps[0].run).toContain("--ref");
   });
 
   it("uses bundled Node shards and telemetry-backed runner sizes", () => {
diff --git a/test/scripts/run-vitest.test.ts b/test/scripts/run-vitest.test.ts
index 5ff662026eb..d388f79317b 100644
--- a/test/scripts/run-vitest.test.ts
+++ b/test/scripts/run-vitest.test.ts
@@ -492,6 +492,30 @@ describe("scripts/run-vitest", () => {
     });
   });
 
+  it("disables an inherited Node compile cache for every Vitest child", () => {
+    expect(
+      resolveRunVitestSpawnEnv(
+        {
+          NODE_COMPILE_CACHE: "/tmp/node-compile",
+          NODE_COMPILE_CACHE_PORTABLE: "1",
+          PATH: "/usr/bin",
+        },
+        ["run"],
+      ),
+    ).toEqual({
+      NODE_DISABLE_COMPILE_CACHE: "1",
+      OPENCLAW_VITEST_NO_OUTPUT_HEARTBEAT_MS: "30000",
+      OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS: "120000",
+      PATH: "/usr/bin",
+    });
+    expect(
+      resolveRunVitestSpawnEnv({ NODE_COMPILE_CACHE: "/tmp/node-compile", PATH: "/usr/bin" }, [
+        "run",
+        "--coverage=false",
+      ]),
+    ).toMatchObject({ NODE_DISABLE_COMPILE_CACHE: "1" });
+  });
+
   it("uses a longer default stall watchdog for broad e2e and project shard configs", () => {
     const timeout = String(DEFAULT_LONG_RUNNING_VITEST_NO_OUTPUT_TIMEOUT_MS);
     const extraLongTimeout = String(DEFAULT_EXTRA_LONG_RUNNING_VITEST_NO_OUTPUT_TIMEOUT_MS);
diff --git a/ui/package.json b/ui/package.json
index 297cb9a57a1..594e42a59e1 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -41,12 +41,12 @@
   },
   "devDependencies": {
     "@types/markdown-it": "14.1.2",
-    "@vitest/browser": "4.1.9",
-    "@vitest/browser-playwright": "4.1.9",
+    "@vitest/browser": "4.1.10",
+    "@vitest/browser-playwright": "4.1.10",
     "jsdom": "29.1.1",
     "openclaw": "workspace:*",
     "playwright": "1.61.1",
     "vite": "8.1.3",
-    "vitest": "4.1.9"
+    "vitest": "4.1.10"
   }
 }