diff --git a/.agents/skills/crabbox/SKILL.md b/.agents/skills/crabbox/SKILL.md
index 483d83166499..585bd899e843 100644
--- a/.agents/skills/crabbox/SKILL.md
+++ b/.agents/skills/crabbox/SKILL.md
@@ -149,7 +149,7 @@ pnpm crabbox:run -- \
   --ttl 240m \
   --timing-json \
   --shell -- \
-  "env CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test:changed"
+  "pnpm test:changed"
 ```
 
 Full suite:
@@ -160,7 +160,7 @@ pnpm crabbox:run -- \
   --ttl 240m \
   --timing-json \
   --shell -- \
-  "env CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test"
+  "pnpm test"
 ```
 
 Focused rerun:
@@ -171,7 +171,7 @@ pnpm crabbox:run -- \
   --ttl 240m \
   --timing-json \
   --shell -- \
-  "env CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test <path-or-filter>"
+  "pnpm test <path-or-filter>"
 ```
 
 Read the JSON summary. Useful fields:
@@ -206,7 +206,7 @@ node scripts/crabbox-wrapper.mjs run \
   --ttl 240m \
   --timing-json \
   -- \
-  CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 OPENCLAW_TESTBOX=1 OPENCLAW_TESTBOX_REMOTE_RUN=1 pnpm check:changed
+  corepack pnpm check:changed
 ```
 
 Read the JSON summary and the Testbox line. Useful fields:
@@ -544,14 +544,14 @@ If brokered AWS cannot dispatch, sync, attach, or stop, retry once with
 
 ```sh
 pnpm crabbox:run -- --debug --timing-json -- \
-  CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test:changed
+  pnpm test:changed
 ```
 
 Full suite:
 
 ```sh
 pnpm crabbox:run -- --debug --timing-json -- \
-  CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test
+  pnpm test
 ```
 
 Auth fallback, only when `blacksmith` says auth is missing:
@@ -591,7 +591,7 @@ Minimal Blacksmith-backed Crabbox run, from repo root:
 
 ```sh
 pnpm crabbox:run -- --provider blacksmith-testbox --timing-json -- \
-  CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 pnpm test:changed
+  corepack pnpm test:changed
 ```
 
 Use direct Blacksmith only when Crabbox is the broken layer and you are
@@ -617,7 +617,7 @@ provider deliberately.
 ```sh
 pnpm crabbox:warmup -- --class beast --market on-demand --idle-timeout 90m
 pnpm crabbox:hydrate -- --id <cbx_id-or-slug>
-pnpm crabbox:run -- --id <cbx_id-or-slug> --timing-json --shell -- "env NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test:changed"
+pnpm crabbox:run -- --id <cbx_id-or-slug> --timing-json --shell -- "pnpm test:changed"
 pnpm crabbox:stop -- <cbx_id-or-slug>
 ```
 
diff --git a/docs/ci.md b/docs/ci.md
index f6a54953495e..b86743bee832 100644
--- a/docs/ci.md
+++ b/docs/ci.md
@@ -576,7 +576,7 @@ pnpm crabbox:run -- --provider blacksmith-testbox \
   --ttl 240m \
   --timing-json \
   --shell -- \
-  "env CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm check:changed"
+  "corepack pnpm check:changed"
 ```
 
 Focused test rerun:
@@ -591,7 +591,7 @@ pnpm crabbox:run -- --provider blacksmith-testbox \
   --ttl 240m \
   --timing-json \
   --shell -- \
-  "env CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test <path-or-filter>"
+  "corepack pnpm test <path-or-filter>"
 ```
 
 Full suite:
@@ -606,7 +606,7 @@ pnpm crabbox:run -- --provider blacksmith-testbox \
   --ttl 240m \
   --timing-json \
   --shell -- \
-  "env CI=1 NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test"
+  "corepack pnpm test"
 ```
 
 Read the final JSON summary. The useful fields are `provider`, `leaseId`, `syncDelegated`, `exitCode`, `commandMs`, and `totalMs`. One-shot Blacksmith-backed Crabbox runs should stop the Testbox automatically; if a run is interrupted or cleanup is unclear, inspect live boxes and stop only the boxes you created:
@@ -641,7 +641,7 @@ Escalate to owned Crabbox capacity only when Blacksmith is down, quota-limited,
 CRABBOX_CAPACITY_REGIONS=eu-west-1,eu-west-2,eu-central-1,us-east-1,us-west-2 \
   pnpm crabbox:warmup -- --provider aws --class standard --market on-demand --idle-timeout 90m
 pnpm crabbox:hydrate -- --id <cbx_id-or-slug>
-pnpm crabbox:run -- --id <cbx_id-or-slug> --timing-json --shell -- "env NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm check:changed"
+pnpm crabbox:run -- --id <cbx_id-or-slug> --timing-json --shell -- "pnpm check:changed"
 pnpm crabbox:stop -- <cbx_id-or-slug>
 ```
 
diff --git a/scripts/check-changed.mjs b/scripts/check-changed.mjs
index 2be9a2375641..0002e0605d30 100644
--- a/scripts/check-changed.mjs
+++ b/scripts/check-changed.mjs
@@ -80,9 +80,6 @@ export function shouldDelegateChangedCheckToCrabbox(argv = [], env = process.env
   if (!isTruthyEnvFlag(env.OPENCLAW_TESTBOX)) {
     return false;
   }
-  if (isTruthyEnvFlag(env.OPENCLAW_TESTBOX_REMOTE_RUN)) {
-    return false;
-  }
   if (isTruthyEnvFlag(env.CI) || isTruthyEnvFlag(env.GITHUB_ACTIONS)) {
     return false;
   }
@@ -112,13 +109,6 @@ export function buildChangedCheckCrabboxArgs(argv = []) {
     "240m",
     "--timing-json",
     "--",
-    "CI=1",
-    "NODE_OPTIONS=--max-old-space-size=4096",
-    "OPENCLAW_TEST_PROJECTS_PARALLEL=6",
-    "OPENCLAW_VITEST_MAX_WORKERS=1",
-    "OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000",
-    "OPENCLAW_TESTBOX=1",
-    "OPENCLAW_TESTBOX_REMOTE_RUN=1",
     "corepack",
     "pnpm",
     "check:changed",
@@ -378,11 +368,7 @@ async function runPlanCommand(command, timings) {
 
 export function createPnpmManagedCommand(command, env = process.env) {
   const commandEnv = command.env ?? resolveLocalHeavyCheckEnv(env);
-  if (
-    isTruthyEnvFlag(commandEnv.OPENCLAW_TESTBOX_REMOTE_RUN) ||
-    isTruthyEnvFlag(commandEnv.CI) ||
-    isTruthyEnvFlag(commandEnv.GITHUB_ACTIONS)
-  ) {
+  if (isTruthyEnvFlag(commandEnv.CI) || isTruthyEnvFlag(commandEnv.GITHUB_ACTIONS)) {
     const shimmedEnv = prependCorepackPnpmShim(commandEnv);
     return {
       ...command,
diff --git a/test/scripts/changed-lanes.test.ts b/test/scripts/changed-lanes.test.ts
index 5f58b358c61c..a1f22797ed8f 100644
--- a/test/scripts/changed-lanes.test.ts
+++ b/test/scripts/changed-lanes.test.ts
@@ -299,18 +299,6 @@ describe("scripts/changed-lanes", () => {
     });
   });
 
-  it("runs remote Testbox changed-check children through Corepack pnpm", () => {
-    const command = createPnpmManagedCommand(
-      { name: "conflict markers", args: ["check:no-conflict-markers"] },
-      { OPENCLAW_TESTBOX_REMOTE_RUN: "1", PATH: "/usr/bin" },
-    );
-
-    expect(command.bin).toBe("corepack");
-    expect(command.args).toEqual(["pnpm", "check:no-conflict-markers"]);
-    expect(command.env?.PATH).not.toBe("/usr/bin");
-    expect(command.env?.PATH).toContain("/usr/bin");
-  });
-
   it("runs CI changed-check children through Corepack pnpm", () => {
     const command = createPnpmManagedCommand(
       { name: "conflict markers", args: ["check:no-conflict-markers"] },
@@ -358,13 +346,6 @@ describe("scripts/changed-lanes", () => {
       "240m",
       "--timing-json",
       "--",
-      "CI=1",
-      "NODE_OPTIONS=--max-old-space-size=4096",
-      "OPENCLAW_TEST_PROJECTS_PARALLEL=6",
-      "OPENCLAW_VITEST_MAX_WORKERS=1",
-      "OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000",
-      "OPENCLAW_TESTBOX=1",
-      "OPENCLAW_TESTBOX_REMOTE_RUN=1",
       "corepack",
       "pnpm",
       "check:changed",
@@ -375,7 +356,7 @@ describe("scripts/changed-lanes", () => {
     ]);
   });
 
-  it("does not delegate dry-run, CI, or already-remote changed gates", () => {
+  it("does not delegate dry-run or CI changed gates", () => {
     expect(shouldDelegateChangedCheckToCrabbox(["--dry-run"], { OPENCLAW_TESTBOX: "1" })).toBe(
       false,
     );
@@ -383,12 +364,6 @@ describe("scripts/changed-lanes", () => {
       shouldDelegateChangedCheckToCrabbox([], { OPENCLAW_TESTBOX: "1", GITHUB_ACTIONS: "true" }),
     ).toBe(false);
     expect(shouldDelegateChangedCheckToCrabbox([], { OPENCLAW_TESTBOX: "1", CI: "1" })).toBe(false);
-    expect(
-      shouldDelegateChangedCheckToCrabbox([], {
-        OPENCLAW_TESTBOX: "1",
-        OPENCLAW_TESTBOX_REMOTE_RUN: "1",
-      }),
-    ).toBe(false);
   });
 
   it("runs changed-check lint lanes under the parent heavy-check lock", () => {
@@ -1005,7 +980,7 @@ describe("scripts/changed-lanes", () => {
       "apps/shared/OpenClawKit/Sources/OpenClawProtocol/GatewayModels.swift",
     ]);
     const plan = createChangedCheckPlan(result, {
-      env: { OPENCLAW_TESTBOX_REMOTE_RUN: "1", PATH: "/usr/bin" },
+      env: { CI: "1", PATH: "/usr/bin" },
       platform: "linux",
       swiftlintAvailable: true,
     });