diff --git a/Cargo.lock b/Cargo.lock
index b6fddbf..b78ab2d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -407,7 +407,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -877,7 +877,7 @@ checksum = "3640c1c38b8e4e43584d8df18be5fc6b0aa314ce6ebf51b53313d4306cca8e46"
 dependencies = [
  "hermit-abi",
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1242,7 +1242,7 @@ dependencies = [
  "once_cell",
  "socket2",
  "tracing",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1433,7 +1433,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1764,7 +1764,7 @@ dependencies = [
  "getrandom 0.4.3",
  "once_cell",
  "rustix",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -1845,9 +1845,9 @@ checksum = "fd3ca314f692efd6c868f8408f53fe444634a845f96c028b97d35f6a1f79f0ee"
 
 [[package]]
 name = "tokio"
-version = "1.53.1"
+version = "1.54.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "202caea871b69668250d242070849eb495be178ed697a3e98aebce5bc81a0bed"
+checksum = "b52fd3255258d26fac7264ab5a76b53c13367136dc011d3d6ad4f8ed070396a3"
 dependencies = [
  "bytes",
  "libc",
@@ -2212,7 +2212,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
diff --git a/bin/rulab-harness.js b/bin/rulab-harness.js
index e50b087..326592b 100644
--- a/bin/rulab-harness.js
+++ b/bin/rulab-harness.js
@@ -26,7 +26,7 @@ export const GATES = Object.freeze([
   { id: 'typecheck', cwd: 'rulab', executable: 'npm', args: ['run', 'typecheck'] },
   { id: 'unit-tests', cwd: 'rulab', executable: 'npm', args: ['test'] },
   { id: 'production-build', cwd: 'rulab', executable: 'npm', args: ['run', 'build'] },
-  { id: 'browser-tests', cwd: 'rulab', executable: 'npm', args: ['run', 'test:e2e'] },
+  { id: 'browser-tests', cwd: 'rulab', executable: 'npm', args: ['run', 'test:e2e'], timeoutMs: 1_800_000 },
 ]);
 
 const record = (v) => v !== null && typeof v === 'object' && !Array.isArray(v);
@@ -244,7 +244,7 @@ export async function verifyRuLab(argv, options = {}) {
     if (!includeBrowser && gate.id === 'browser-tests') result.reason = 'Browser validation disabled explicitly; physical GPU performance remains unverified.';
     else {
       process.stderr.write(`RuLab validation: ${gate.id}\n`);
-      const execution = await runProcess(commandOf(gate), resolve(root, gate.cwd));
+      const execution = await runProcess(commandOf(gate), resolve(root, gate.cwd), gate.timeoutMs);
       const logFile = join(outputDir, `${gate.id}.log`);
       writeArtifact(logFile, execution.output);
       Object.assign(result, { status: execution.exitCode === 0 ? 'passed' : 'failed', exitCode: execution.exitCode, durationMs: execution.durationMs, reason: execution.reason,
diff --git a/package-lock.json b/package-lock.json
index 36bbaad..d7eadec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,14 +10,6 @@
       "license": "MIT OR Apache-2.0",
       "dependencies": {
         "@metaharness/host-claude-code": "0.1.4",
-        "@metaharness/host-codex": "0.1.4",
-        "@metaharness/host-copilot": "0.1.4",
-        "@metaharness/host-github-actions": "0.1.5",
-        "@metaharness/host-hermes": "0.1.5",
-        "@metaharness/host-openclaw": "0.1.5",
-        "@metaharness/host-opencode": "0.1.4",
-        "@metaharness/host-pi-dev": "0.1.4",
-        "@metaharness/host-rvm": "0.1.5",
         "@metaharness/kernel": "0.1.8"
       },
       "bin": {
@@ -52,102 +44,6 @@
         "node": ">=20.0.0"
       }
     },
-    "node_modules/@metaharness/host-codex": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-codex/-/host-codex-0.1.4.tgz",
-      "integrity": "sha512-KSZSKM+TRaPUwLa0iXYD3lT0ADM8O4mMqijVqqnVLz4vcGric6j+FBITz0rCRqKBEz9csuWd8mXWUT3MFU+15g==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
-    "node_modules/@metaharness/host-copilot": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-copilot/-/host-copilot-0.1.4.tgz",
-      "integrity": "sha512-tNdckHdCfhfSfyh79L9qoadyCSY0bZhX9N/eXiMDHGLqovbVuX92H4uFaY9QRN3DEwUmVIsPPf2Sk5IpFQ8/JA==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
-    "node_modules/@metaharness/host-github-actions": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-github-actions/-/host-github-actions-0.1.5.tgz",
-      "integrity": "sha512-1ATcJALIx+UqvMTbmI0sCFXcvSVCL6ItMTSmrgnXJwjcthAk0djJ4M9qwaw7oMU4Qdx2V6Ew1ktjMep8ZncosA==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
-    "node_modules/@metaharness/host-hermes": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-hermes/-/host-hermes-0.1.5.tgz",
-      "integrity": "sha512-kBnAwJqe0snDKId5LrC/Z0n+6eDGpbCqrr/Z/5LELpQrV+lp5l6KgyHXFHCnkB2/BPBU8EbMfCUb5qFsWH2dig==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
-    "node_modules/@metaharness/host-openclaw": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-openclaw/-/host-openclaw-0.1.5.tgz",
-      "integrity": "sha512-I2YWFo02G9892JkqRbd1Q0F37zJmgQnky85AXQcAOOQTZzlO9/aJcV32Nb+1aTfVWYGQ6SyUay/3zMP8mj0GTA==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
-    "node_modules/@metaharness/host-opencode": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-opencode/-/host-opencode-0.1.4.tgz",
-      "integrity": "sha512-bSw+AeUMf4Y/GQHmuFDH8HByXHYqgnZsD7CxkVSbOrre83eDlcl+mAnNlZi1Zl3R88NLM9mZ88lCsVl7m5ONmg==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
-    "node_modules/@metaharness/host-pi-dev": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-pi-dev/-/host-pi-dev-0.1.4.tgz",
-      "integrity": "sha512-2A45lXGckmIn0uLQUKBMt24UQpZ5f9VwMFOmBjVtTb7dQACvoyu7Uf+l4V0wwivykWzNqIOIRkU2mAefzcqoqQ==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
-    "node_modules/@metaharness/host-rvm": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@metaharness/host-rvm/-/host-rvm-0.1.5.tgz",
-      "integrity": "sha512-DIPjexCeAsQ/XIaV7QSD46ItQ1HuAEYYK7K3sF0tSHms6Vjgm2wxgYG1aiAY4R9XcSvh5UzFxLuuU53q74k/rg==",
-      "license": "MIT",
-      "dependencies": {
-        "@metaharness/kernel": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      }
-    },
     "node_modules/@metaharness/kernel": {
       "version": "0.1.8",
       "resolved": "https://registry.npmjs.org/@metaharness/kernel/-/kernel-0.1.8.tgz",
@@ -308,9 +204,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -328,9 +221,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -348,9 +238,6 @@
         "ppc64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -368,9 +255,6 @@
         "s390x"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -388,9 +272,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -408,9 +289,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -879,9 +757,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -903,9 +778,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -927,9 +799,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -951,9 +820,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
diff --git a/package.json b/package.json
index a70d4f3..8db447a 100644
--- a/package.json
+++ b/package.json
@@ -53,15 +53,7 @@
   },
   "dependencies": {
     "@metaharness/kernel": "0.1.8",
-    "@metaharness/host-claude-code": "0.1.4",
-    "@metaharness/host-codex": "0.1.4",
-    "@metaharness/host-pi-dev": "0.1.4",
-    "@metaharness/host-hermes": "0.1.5",
-    "@metaharness/host-openclaw": "0.1.5",
-    "@metaharness/host-rvm": "0.1.5",
-    "@metaharness/host-copilot": "0.1.4",
-    "@metaharness/host-opencode": "0.1.4",
-    "@metaharness/host-github-actions": "0.1.5"
+    "@metaharness/host-claude-code": "0.1.4"
   },
   "devDependencies": {
     "@types/node": "^20.0.0",