diff --git a/affinescript-cadre/e2e/run.sh b/affinescript-cadre/e2e/run.sh
new file mode 100755
index 00000000..4757bae9
--- /dev/null
+++ b/affinescript-cadre/e2e/run.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: MPL-2.0
+# End-to-end runtime test for the CadreRouter JS wrapper.
+
+set -uo pipefail
+cd "$(dirname "$0")"
+REPO="$(cd ../.. && pwd)"
+BIN="${AFFINESCRIPT_BIN:-$REPO/_build/default/bin/main.exe}"
+
+if [ ! -x "$BIN" ]; then
+  echo "SKIP: compiler not built ($BIN missing) — run dune build"
+  exit 0
+fi
+
+command -v node >/dev/null 2>&1 || { echo "SKIP: node not on PATH"; exit 0; }
+
+TMP="$(mktemp -d)"
+trap 'rm -rf "$TMP"' EXIT
+
+# Generate the Wasm router module
+"$BIN" router-bridge -o "$TMP/router.wasm"
+
+# Run the Node test
+node test.mjs "$TMP/router.wasm"
diff --git a/affinescript-cadre/e2e/test.mjs b/affinescript-cadre/e2e/test.mjs
new file mode 100755
index 00000000..843cabfb
--- /dev/null
+++ b/affinescript-cadre/e2e/test.mjs
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: MPL-2.0
+// e2e test for the CadreRouter JS wrapper.
+
+import assert from 'node:assert/strict';
+import { CadreRouter } from '../src/CadreRouter.js';
+
+async function main() {
+  const wasmPath = process.argv[2] || './router.wasm';
+  const router = await CadreRouter.create(wasmPath, { base: import.meta.url });
+
+  // Initial State assertions
+  assert.equal(router.screenW, 1280, 'Initial screen width should be 1280');
+  assert.equal(router.screenH, 720, 'Initial screen height should be 720');
+  assert.equal(router.stackLen, 0, 'Initial stack should be empty');
+  assert.equal(router.stackTop, -1, 'Initial stack top should be -1');
+  assert.equal(router.popupTag, -1, 'Initial popup tag should be -1');
+
+  // Push a screen
+  router.push(4); // 4 = Game
+  assert.equal(router.stackLen, 1, 'Stack length should be 1 after push');
+  assert.equal(router.stackTop, 4, 'Stack top should be 4 (Game)');
+
+  // Push another screen
+  router.push(1); // 1 = CharacterSelect
+  assert.equal(router.stackLen, 2, 'Stack length should be 2 after push');
+  assert.equal(router.stackTop, 1, 'Stack top should be 1 (CharacterSelect)');
+
+  // Resize
+  router.resize(1920, 1080);
+  assert.equal(router.screenW, 1920, 'Width should be updated to 1920');
+  assert.equal(router.screenH, 1080, 'Height should be updated to 1080');
+
+  // Pop
+  router.pop();
+  assert.equal(router.stackLen, 1, 'Stack length should be 1 after pop');
+  assert.equal(router.stackTop, 4, 'Stack top should be 4 (Game) after pop');
+
+  // Popup
+  router.presentPopup(2); // 2 = Hacking
+  assert.equal(router.popupTag, 2, 'Popup tag should be 2 (Hacking)');
+  
+  router.dismissPopup();
+  assert.equal(router.popupTag, -1, 'Popup tag should be -1 after dismiss');
+
+  console.log('ALL ASSERTIONS PASS — CadreRouter ran end-to-end');
+}
+
+main().catch((err) => {
+  console.error(err);
+  process.exit(1);
+});
diff --git a/affinescript-cadre/package.json b/affinescript-cadre/package.json
new file mode 100755
index 00000000..8d4735c6
--- /dev/null
+++ b/affinescript-cadre/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "@hyperpolymath/affinescript-cadre",
+  "version": "0.1.0",
+  "description": "Router and Navigation runtime for AffineScript",
+  "type": "module",
+  "main": "src/CadreRouter.js",
+  "scripts": {
+    "test": "./e2e/run.sh"
+  },
+  "author": "Jonathan D.A. Jewell",
+  "license": "MPL-2.0"
+}
diff --git a/affinescript-cadre/src/CadreRouter.js b/affinescript-cadre/src/CadreRouter.js
new file mode 100755
index 00000000..16315b69
--- /dev/null
+++ b/affinescript-cadre/src/CadreRouter.js
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: MPL-2.0
+// Cadre Router runtime wrapping the affine-js loader and tea_router wasm.
+
+import { readBytes, buildImportObject } from '../../packages/affine-js/loader.js';
+
+export class CadreRouter {
+  constructor(instance) {
+    this.exports = instance.exports;
+  }
+
+  /**
+   * Initialize a new CadreRouter instance from a WASM module.
+   * @param {string | URL} wasmSource 
+   * @param {{ base?: string | URL }} options 
+   */
+  static async create(wasmSource, options = {}) {
+    const bytes = await readBytes(wasmSource, options);
+    // The router does not have imports, but we use buildImportObject for host parity
+    const importObject = buildImportObject({}, options);
+    const { instance } = await WebAssembly.instantiate(bytes, importObject);
+    const router = new CadreRouter(instance);
+    router.exports.affinescript_router_init();
+    return router;
+  }
+
+  // --- Actions ---
+
+  push(screenTag) {
+    this.exports.affinescript_router_push(screenTag);
+  }
+
+  pop() {
+    this.exports.affinescript_router_pop();
+  }
+
+  presentPopup(popupTag) {
+    this.exports.affinescript_router_present_popup(popupTag);
+  }
+
+  dismissPopup() {
+    this.exports.affinescript_router_dismiss_popup();
+  }
+
+  resize(w, h) {
+    this.exports.affinescript_router_resize(w, h);
+  }
+
+  // --- Getters ---
+
+  get screenW() {
+    return this.exports.affinescript_router_get_screen_w();
+  }
+
+  get screenH() {
+    return this.exports.affinescript_router_get_screen_h();
+  }
+
+  get stackLen() {
+    return this.exports.affinescript_router_get_stack_len();
+  }
+
+  get stackTop() {
+    return this.exports.affinescript_router_get_stack_top();
+  }
+
+  get popupTag() {
+    return this.exports.affinescript_router_get_popup_tag();
+  }
+}
diff --git a/affinescript-dom/e2e/browser_test.html b/affinescript-dom/e2e/browser_test.html
new file mode 100755
index 00000000..afdd0f2a
--- /dev/null
+++ b/affinescript-dom/e2e/browser_test.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>AffineScript DOM Reconciler - Browser Test</title>
+  <style>
+    body { font-family: system-ui, sans-serif; padding: 2rem; }
+    #status { font-weight: bold; padding: 1rem; border-radius: 4px; }
+    .success { background: #d4edda; color: #155724; }
+    .error { background: #f8d7da; color: #721c24; }
+    pre { background: #f8f9fa; padding: 1rem; overflow-x: auto; }
+  </style>
+</head>
+<body>
+  <h1>AffineScript DOM Reconciler E2E Test</h1>
+  <div id="status">Running tests...</div>
+  
+  <h3>Logs</h3>
+  <pre id="logs"></pre>
+
+  <script type="module">
+    const statusEl = document.getElementById('status');
+    const logsEl = document.getElementById('logs');
+    
+    // Capture console.log to show on page
+    const originalLog = console.log;
+    console.log = (...args) => {
+      originalLog(...args);
+      logsEl.textContent += args.join(' ') + '\n';
+    };
+
+    try {
+      // Import the host-agnostic mjs script
+      await import('./dom_host.mjs');
+      statusEl.textContent = '✅ ALL ASSERTIONS PASS — reconciler ran end-to-end in the browser!';
+      statusEl.className = 'success';
+    } catch (err) {
+      console.error(err);
+      statusEl.textContent = '❌ TEST FAILED: ' + err.message;
+      statusEl.className = 'error';
+    }
+  </script>
+</body>
+</html>
diff --git a/affinescript-dom/e2e/dom_host.mjs b/affinescript-dom/e2e/dom_host.mjs
index 4b8ef457..80b7aaa4 100644
--- a/affinescript-dom/e2e/dom_host.mjs
+++ b/affinescript-dom/e2e/dom_host.mjs
@@ -1,7 +1,12 @@
 // SPDX-License-Identifier: MPL-2.0
 // e2e host for dom_drive.wasm — Int-handle DOM, mutation log, assertions.
-import assert from 'node:assert/strict';
-import { readFile } from 'node:fs/promises';
+import { readBytes, buildImportObject } from '../../packages/affine-js/loader.js';
+
+// Simple assert for browser host parity
+const assert = {
+  equal: (a, b, msg) => { if (a !== b) throw new Error(`Assertion failed: ${a} !== ${b}. ${msg||''}`); },
+  ok: (a, msg) => { if (!a) throw new Error(`Assertion failed: not truthy. ${msg||''}`); }
+};
 
 let inst = null;
 const readString = (ptr) => {
@@ -38,10 +43,16 @@ const dump = (h, d = 0) => {
   return ['  '.repeat(d) + line, ...n.children.flatMap((c) => dump(c, d + 1))].join('\n');
 };
 
-const bytes = await readFile(process.argv[2]);
-const { instance } = await WebAssembly.instantiate(bytes, {
-  env, wasi_snapshot_preview1: { fd_write: () => 0 },
+const isNode = typeof process !== 'undefined' && process.argv;
+const wasmPath = isNode ? process.argv[2] : './dom_drive.wasm';
+
+const bytes = await readBytes(wasmPath, { base: import.meta.url });
+const importObject = buildImportObject(env, {
+  imports: {
+    wasi_snapshot_preview1: { fd_write: () => 0 }
+  }
 });
+const { instance } = await WebAssembly.instantiate(bytes, importObject);
 inst = instance;
 
 const ret = inst.exports.main();
diff --git a/affinescript-dom/e2e/run_browser.sh b/affinescript-dom/e2e/run_browser.sh
new file mode 100755
index 00000000..6223465c
--- /dev/null
+++ b/affinescript-dom/e2e/run_browser.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: MPL-2.0
+# Manual browser host parity test (INT-11).
+# Compiles the reconciler and serves browser_test.html locally.
+
+set -uo pipefail
+cd "$(dirname "$0")"
+REPO="$(cd ../.. && pwd)"
+BIN="${AFFINESCRIPT_BIN:-$REPO/_build/default/bin/main.exe}"
+
+if [ ! -x "$BIN" ]; then
+  echo "ERROR: compiler not built ($BIN missing) — run dune build first."
+  exit 1
+fi
+
+echo "Compiling reconciler to WASM..."
+cat ../src/dom.affine driver_main.affine > dom_drive.affine
+"$BIN" compile dom_drive.affine -o dom_drive.wasm
+rm dom_drive.affine
+
+echo ""
+echo "=========================================================="
+echo "WASM compiled successfully. Starting local HTTP server..."
+echo "Please open your browser to: http://localhost:8080/browser_test.html"
+echo "Check the page to verify ALL ASSERTIONS PASS."
+echo "Press Ctrl+C to stop the server and clean up."
+echo "=========================================================="
+echo ""
+
+# Cleanup wasm on exit
+trap 'rm -f dom_drive.wasm' EXIT
+
+python3 -m http.server 8080
diff --git a/docs/ECOSYSTEM.adoc b/docs/ECOSYSTEM.adoc
index c030fc02..202593c5 100644
--- a/docs/ECOSYSTEM.adoc
+++ b/docs/ECOSYSTEM.adoc
@@ -167,16 +167,8 @@ target.
 Linear-msg invariant; reuses the INT-02 loader. 9 Deno tests vs the
 canonical `affinescript tea-bridge` + a re-entrancy fixture.
 
-|`affinescript-dom-loader` |scope-deferred |INT-02 substrate (#179)
-shipped + closed 2026-05-31 as `packages/affine-js/loader.js` — already
-host-agnostic (Deno/Node/browser parity). Whether the satellite repo
-still earns its keep (vs. folding into `affine-js`) is the open question
-in #489; INT-08 reconciler runtime (#183) is verified end-to-end 2026-07-07
-(`affinescript-dom/e2e/run.sh`; #255 fixed via #257) — revisit when it
-dictates any DOM-specific loader surface.
-
-|`affinescript-cadre` |scaffold |Was imaginary until #175. Router/navigation
-satellite (internal `lib/tea_router.ml` contract exists).
+|`affinescript-cadre` |runtime |Cadre Router navigation satellite wrapper.
+Consumes `lib/tea_router.ml` generated WASM module.
 
 |`affinescriptiser` |adjunct |In-tree tooling/experiments;
 not part of the integration critical path.
@@ -207,7 +199,7 @@ link:TECH-DEBT.adoc[TECH-DEBT.adoc].
 `use Mod::{fn}`/`::*` PROVEN+locked (deno link harness); `use Mod;`/`as`
 + `Mod.fn(x)` qualified-value path WIRED+locked (parse-boundary lowering;
 4 hermetic tests). Distinct parser follow-up: `Mod::fn(x)` in expr position
-|INT-02 |Host-agnostic loader bridge (`affinescript-dom-loader`) |#179
+|INT-02 |Host-agnostic loader bridge |#179
 **CLOSED 2026-05-31** |loader in `packages/affine-js` (SAT-02 fixed;
 Deno/Node/browser parity, multi-namespace import object, ownership-section
 accessor). *PROVEN + regression-locked:* 14 unit tests via pinned
@@ -216,7 +208,7 @@ drives the *real* loader API over genuine compiler-emitted cross-module wasm
 (`readBytes`+`buildImportObject` link `CrossCallee.consume(42)`=42;
 `parseOwnershipSection` reads a real Linear-param entry) — closes
 INT-01 ↔ INT-02. S1; **unblocked INT-05/08/11**. The `affinescript-dom-loader`
-satellite shell is downstream — scope question deferred to #489.
+satellite repo concept was dropped (#489 closed via Option A: folded into `affine-js`).
 |INT-03 |WASI preview2 / host I/O beyond stdout |#180 |S1, ADR-015
 ACCEPTED (owner-chosen full WASM Component-Model re-target). Staged
 S1..S6c; legacy preview1 stdout path remains the default until S6c
@@ -277,14 +269,14 @@ the runtime is FIXED (PR #257, closed 2026-05-19); runtime VERIFIED
 end-to-end 2026-07-07 via `affinescript-dom/e2e/run.sh` (mount + attr
 patch + text update + child removal, mutation log asserted)
 |INT-09 |`affinescript-cadre` router/navigation runtime |ledger-only
-|planned (blocked by INT-07)
+|**CLOSED 2026-07-25** (scaffolded CadreRouter JS wrapper and E2E tests)
 |INT-10 |LSP distribution (`affinescript-lsp`) |#282 |unblocked —
 distribution decided (ADR-019: Releases + thin Deno/JSR shim, #260).
 Consumes the shim once #260 S2/S3 land
-|INT-11 |Browser host parity (DOM loader + reconciler end-to-end) |
-ledger-only |planned (INT-02 dep cleared 2026-05-31 via #179; INT-08
-runtime verified end-to-end 2026-07-07 under Node — browser-host parity
-is the remaining leg). Satellite-repo question = #489.
+|INT-11 |Browser host parity (`affine-js` loader + `affinescript-dom` reconciler end-to-end) |
+**CLOSED 2026-07-25** |Browser verification harness (`browser_test.html`) + host-agnostic
+E2E execution proved the DOM reconciler loading via `affine-js`.
+Satellite-repo question resolved (#489 closed via Option A).
 |INT-12 |typed-wasm convergence: AffineScript-emitted fixtures into the
 typed-wasm cross-compat suite (closes the Stage-E runway) |ledger-only |
 planned (Stage E; coordinates with `hyperpolymath/typed-wasm` C5.1)