diff --git a/.prettierignore b/.prettierignore
index e21dc216..bd023dc1 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,6 +1,8 @@
 node_modules/
 dist/
 **/dist/
+**/.wrnexus/**
+**/.wrnexus-*/**
 .publish/
 **/.wirefw/
 coverage/
diff --git a/docs/framework-remediation-plan.md b/docs/framework-remediation-plan.md
index a0710a30..a695ee3c 100644
--- a/docs/framework-remediation-plan.md
+++ b/docs/framework-remediation-plan.md
@@ -1,12 +1,15 @@
 # Framework remediation plan
 
-**Status: completed 2026-08-09.** Every actionable item in this plan has been
-implemented and covered by a failing-before regression or an enforceable
-ratchet. The final repository state has 102 maintained UI components, zero
+**Status: remediation behavior completed; CSS ownership cleanup remains.** The
+repository has 102 maintained UI components, zero
 undeclared non-native output emitters, zero components matching the scaffold
 definition, and local styles on every component. The core reactive runtime is
 48,124 minified bytes; component controllers ship separately at 24,027 bytes.
 
+Section 4.1 remains open: the global `ui.css` still contains legacy component
+rules duplicated by local component styles. Those rules must be removed before
+the §0.1 ownership convention can be called complete.
+
 Final validation passed the production, package, example, service, editor,
 showcase-generation, typecheck, lint, formatting, public-API, visual-contract,
 security, and runtime-size gates. The only skipped test is the explicitly
@@ -497,13 +500,17 @@ whichever behaviour was chosen.
 
 ## 4. Delivery and the dev loop
 
-### 4.1 Global `ui.css` migration — FIXED
+### 4.1 Global `ui.css` migration — PARTIAL
 
 **Original issue.** `ui.css` was **175,848 bytes, 26,350 gzipped**, served on
 every page. Only **42 of 108** components had a local `style {}` block.
 
-**Result.** The maintained library now has **102 of 102** components with local
-styles. Built `ui.css` is **77,410 bytes / 12,764 gzipped**.
+**Result so far.** The maintained library now has **102 of 102** components
+with local styles. After removing the unused `.wire-switch` family, built
+`ui.css` is **76,348 bytes / 12,531 gzipped**, but
+it still contains a parallel legacy component layer, including `.wire-next`,
+`.wire-btn`, `.wire-dropdown`, and related families. Local-style coverage alone
+does not complete this item; global component selectors must reach zero.
 
 **Change.** Done in groups with the visual contract regenerated after each
 migration.
@@ -512,8 +519,8 @@ migration.
 
 ```bash
 ls packages/ui/components/*.wrn | wc -l                          # 102
-grep -l '^  style {' packages/ui/components/*.wrn | wc -l        # 102
-bun run build && gzip -c examples/basic-app/dist/ui.css | wc -c  # 12764
+grep -lE '^[[:space:]]*style[[:space:]]*\{' packages/ui/components/*.wrn | wc -l # 102
+bun run build && gzip -c examples/basic-app/dist/ui.css | wc -c  # 12531
 ```
 
 Add a ratchet test asserting the gzipped size only ever decreases, so this
@@ -560,7 +567,8 @@ therefore deletes the running server's cache.
 
 **Change.** The first option was implemented: each process uses
 `.wrnexus-<pid>`, normal server shutdown removes its directory, and
-`.wrnexus-*/` is gitignored so an interrupted process cannot pollute a commit.
+`.wrnexus-*/` is excluded by Git, ESLint, TypeScript, and Prettier so an
+interrupted process cannot pollute a commit or a repository-wide tool run.
 
 The considered options were:
 
diff --git a/docs/ui-visual-contract-0.8.json b/docs/ui-visual-contract-0.8.json
index e82a3bf5..a6ad67e8 100644
--- a/docs/ui-visual-contract-0.8.json
+++ b/docs/ui-visual-contract-0.8.json
@@ -104,6 +104,6 @@
     "packages/ui/components/switch.wrn": "205591decf50f1f7d190d8da6a3d969e0fd17ec5300c968fb005608da6a6e596",
     "packages/ui/components/textarea.wrn": "00b48d4dbbd5aedfe51e8e932d124b3e222383360c738ac3b15fbbf478481ff7",
     "packages/ui/components/tooltip.wrn": "40028dfbb17f6725c76c2e091af9c30ea4db6aa4dea919d38f53874ea70315d1",
-    "packages/ui/ui.css": "d671a848fcbd340d1140a2855019dccecbd71a81d36276e4f1f6cee9d960da9d"
+    "packages/ui/ui.css": "2cdf2ab533f0d2ad5dc9576be701408a6388b985ebac5c34e61d71a9de521a94"
   }
 }
diff --git a/eslint.config.js b/eslint.config.js
index b9a32e54..4704745c 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -13,6 +13,7 @@ export default tseslint.config(
       "**/dist/**",
       ".publish/**",
       "**/.wrnexus/**",
+      "**/.wrnexus-*/**",
       "coverage/**",
       "bun.lock",
       "bun.lockb",
diff --git a/packages/dev-server/test/cache-ignore-config.test.ts b/packages/dev-server/test/cache-ignore-config.test.ts
new file mode 100644
index 00000000..6f41a8d9
--- /dev/null
+++ b/packages/dev-server/test/cache-ignore-config.test.ts
@@ -0,0 +1,40 @@
+import { expect, test } from "bun:test";
+import { mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs";
+import { join, resolve } from "node:path";
+
+const root = resolve(import.meta.dir, "../../..");
+
+test("per-process dev caches are excluded from every repository-wide tool", () => {
+  const eslint = readFileSync(join(root, "eslint.config.js"), "utf8");
+  const tsconfig = JSON.parse(readFileSync(join(root, "tsconfig.json"), "utf8")) as {
+    exclude?: string[];
+  };
+  const prettier = readFileSync(join(root, ".prettierignore"), "utf8");
+
+  expect(eslint).toContain('"**/.wrnexus-*/**"');
+  expect(tsconfig.exclude).toContain("**/.wrnexus-*");
+  expect(prettier).toContain("**/.wrnexus-*/**");
+
+  const cache = join(root, "packages", "dev-server", "test", ".tmp-cache-ignore", ".wrnexus-123");
+  mkdirSync(cache, { recursive: true });
+  writeFileSync(join(cache, "broken.client.mjs"), "const = ;\n", "utf8");
+  writeFileSync(join(cache, "broken.d.ts"), "type = ;\n", "utf8");
+  try {
+    const lint = Bun.spawnSync(
+      [
+        "bunx",
+        "eslint",
+        "--no-warn-ignored",
+        join(cache, "broken.client.mjs"),
+        join(cache, "broken.d.ts"),
+      ],
+      { cwd: root },
+    );
+    expect(lint.exitCode).toBe(0);
+  } finally {
+    rmSync(join(root, "packages", "dev-server", "test", ".tmp-cache-ignore"), {
+      recursive: true,
+      force: true,
+    });
+  }
+});
diff --git a/packages/ui/test/ui.test.ts b/packages/ui/test/ui.test.ts
index 26b15608..2ff76396 100644
--- a/packages/ui/test/ui.test.ts
+++ b/packages/ui/test/ui.test.ts
@@ -28,6 +28,7 @@ test("bundled UI assets are discoverable and readable", () => {
 
 test("global UI CSS stays below its migration ratchet", () => {
   expect(gzipSync(new TextEncoder().encode(uiCss())).length).toBeLessThanOrEqual(12_672);
+  expect(uiCss()).not.toContain(".wire-switch");
 });
 
 test("every bundled component carries local styles", () => {
diff --git a/packages/ui/ui.css b/packages/ui/ui.css
index 65e401f2..6ec9d7e7 100644
--- a/packages/ui/ui.css
+++ b/packages/ui/ui.css
@@ -609,51 +609,6 @@
   background-repeat: no-repeat;
   padding-right: 2rem;
 }
-/* --- Switch --------------------------------------------------------------- */
-.wire-switch {
-  display: inline-flex;
-  align-items: center;
-  gap: 0.5rem;
-  cursor: pointer;
-}
-.wire-switch__input {
-  position: absolute;
-  opacity: 0;
-  width: 0;
-  height: 0;
-}
-.wire-switch__track {
-  position: relative;
-  width: 2.25rem;
-  height: 1.25rem;
-  border-radius: 999px;
-  background: var(--wire-color-border);
-  transition: background 0.15s ease;
-  flex: none;
-}
-.wire-switch__thumb {
-  position: absolute;
-  top: 2px;
-  left: 2px;
-  width: calc(1.25rem - 4px);
-  height: calc(1.25rem - 4px);
-  border-radius: 999px;
-  background: #fff;
-  transition: transform 0.15s ease;
-}
-.wire-switch__input:checked + .wire-switch__track {
-  background: var(--wire-color-primary);
-}
-.wire-switch__input:checked + .wire-switch__track .wire-switch__thumb {
-  transform: translateX(1rem);
-}
-.wire-switch__input:focus-visible + .wire-switch__track {
-  outline: 2px solid var(--wire-color-primary);
-  outline-offset: 2px;
-}
-.wire-switch__label {
-  color: var(--wire-color-text);
-}
 /* --- Progress ------------------------------------------------------------- */
 .wire-progress {
   appearance: none;
diff --git a/tsconfig.json b/tsconfig.json
index d902e4b1..bd5dda0a 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -138,6 +138,7 @@
     "dist",
     "**/dist",
     "**/.wrnexus",
+    "**/.wrnexus-*",
     "focus-shims.d.ts",
     "tsconfig.focus.json",
     "**/focus-shims.d.ts",