diff --git a/.changeset/tsc-pretscheck-prescript.md b/.changeset/tsc-pretscheck-prescript.md
new file mode 100644
index 00000000..45de1a26
--- /dev/null
+++ b/.changeset/tsc-pretscheck-prescript.md
@@ -0,0 +1,7 @@
+---
+"@rrlab/cli": patch
+---
+
+Honor `pretscheck` as the primary pre-script alias for `rr tsc`.
+
+Now that the typecheck task is canonically named `tscheck` (#240), a package's `pretscheck` script runs before the type check, taking precedence over the legacy `pretsc` and `pretypecheck` aliases (which still work as fallbacks).
diff --git a/run-run/cli/src/actions/tsc.ts b/run-run/cli/src/actions/tsc.ts
index 0e852c9b..fc4c35e9 100644
--- a/run-run/cli/src/actions/tsc.ts
+++ b/run-run/cli/src/actions/tsc.ts
@@ -11,14 +11,14 @@ export type TscActionConfig = {
 
 type Scripts = Record<string, string | undefined> | undefined;
 
-const getPreScript = (scripts: Scripts) => scripts?.pretsc ?? scripts?.pretypecheck;
+const getPreScript = (scripts: Scripts) => scripts?.pretscheck ?? scripts?.pretsc ?? scripts?.pretypecheck;
 
 export async function tscAction({ ctx, tsc }: TscActionConfig): Promise<void> {
   const { appPkg, shell } = ctx;
 
   const isTsProject = (dir: string) => appPkg.hasFile("tsconfig.json", dir);
 
-  // A package's `pretsc`/`pretypecheck` runs captured, inside the task, so its
+  // A package's `pretscheck`/`pretsc`/`pretypecheck` runs captured, inside the task, so its
   // output stays grouped with that package. It may use shell features, so it
   // goes through `/bin/sh -c`. A failing pre-script fails the task before tsc.
   const typecheckTask = (label: string, dir: string, scripts: Scripts): BoardTask =>
diff --git a/run-run/cli/test/integration/only.test.ts b/run-run/cli/test/integration/only.test.ts
index 19655ecb..65720285 100644
--- a/run-run/cli/test/integration/only.test.ts
+++ b/run-run/cli/test/integration/only.test.ts
@@ -47,7 +47,7 @@ describe("plugin { only } narrowing", () => {
       // output: either its `N warnings and M errors` summary or the `tsgolint`
       // type-checker it shells out to — both are oxlint-exclusive markers.
       expect(combined).toMatch(/\d+ warnings? and \d+ errors?|tsgolint/i);
-    }, 15_000);
+    });
 
     test("rr jsc composes biome's lint+format (biome's direct jsc was narrowed away)", () => {
       const r = cli("jsc", { cwd: fixture.dir });
diff --git a/run-run/cli/test/integration/tsc.test.ts b/run-run/cli/test/integration/tsc.test.ts
index 05c761da..8ed62e21 100644
--- a/run-run/cli/test/integration/tsc.test.ts
+++ b/run-run/cli/test/integration/tsc.test.ts
@@ -59,4 +59,46 @@ describe("rr tsc", () => {
       expect(r.stdout + r.stderr).toMatch(/Type 'string' is not assignable to type 'number'/);
     });
   });
+
+  describe("pre-script", () => {
+    const pkgWithScripts = (scripts: Record<string, string>) =>
+      `${JSON.stringify({ name: "rr-test-fixture", version: "0.0.0", private: true, scripts }, null, 2)}\n`;
+
+    test("runs `pretscheck` before tsc and fails the task when it fails", () => {
+      fixture = makeFixture("tsc-pretscheck", {
+        "package.json": pkgWithScripts({ pretscheck: "echo MARK_TSCHECK && exit 1" }),
+        "run-run.config.mts": fixtures.config(["ts"]),
+        "tsconfig.json": fixtures.tsconfig(),
+        "src/ok.ts": "export const ok: number = 1;\n",
+      });
+
+      const r = cli("tsc", { cwd: fixture.dir });
+      const combined = r.stdout + r.stderr;
+      expect(r.status).not.toBe(0);
+      // The task fails on the pre-script, before tsc runs; its captured output is surfaced.
+      expect(combined).toContain("pre-script");
+      expect(combined).toContain("MARK_TSCHECK");
+    });
+
+    test("prefers `pretscheck` over the legacy `pretsc`/`pretypecheck` aliases", () => {
+      fixture = makeFixture("tsc-pretscheck-precedence", {
+        "package.json": pkgWithScripts({
+          pretscheck: "echo MARK_TSCHECK && exit 1",
+          pretsc: "echo MARK_LEGACY_TSC && exit 0",
+          pretypecheck: "echo MARK_LEGACY_TYPECHECK && exit 0",
+        }),
+        "run-run.config.mts": fixtures.config(["ts"]),
+        "tsconfig.json": fixtures.tsconfig(),
+        "src/ok.ts": "export const ok: number = 1;\n",
+      });
+
+      const r = cli("tsc", { cwd: fixture.dir });
+      const combined = r.stdout + r.stderr;
+      // Only `pretscheck` runs: it fails the task and the legacy aliases never fire.
+      expect(r.status).not.toBe(0);
+      expect(combined).toContain("MARK_TSCHECK");
+      expect(combined).not.toContain("MARK_LEGACY_TSC");
+      expect(combined).not.toContain("MARK_LEGACY_TYPECHECK");
+    });
+  });
 });
diff --git a/run-run/cli/vitest.config.ts b/run-run/cli/vitest.config.ts
index 2312481f..1264e8ea 100644
--- a/run-run/cli/vitest.config.ts
+++ b/run-run/cli/vitest.config.ts
@@ -15,6 +15,8 @@ export default defineConfig({
         test: {
           name: "integration",
           include: ["./test/integration/**/*.test.ts"],
+          testTimeout: 30_000,
+          hookTimeout: 30_000,
         },
       },
     ],