diff --git a/packages/cli/src/commands/migrate.test.ts b/packages/cli/src/commands/migrate.test.ts
index 67e3c41..436427b 100644
--- a/packages/cli/src/commands/migrate.test.ts
+++ b/packages/cli/src/commands/migrate.test.ts
@@ -183,7 +183,13 @@ function makeCortexkitDb() {
 
 afterEach(() => {
     for (const db of databases.splice(0)) db.close();
-    for (const dir of tempDirs.splice(0)) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs.splice(0)) {
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
+    }
 });
 
 describe("migrateOpenCodeSessionToPi", () => {
diff --git a/packages/plugin/src/config/index.test.ts b/packages/plugin/src/config/index.test.ts
index c7f406e..e5ec764 100644
--- a/packages/plugin/src/config/index.test.ts
+++ b/packages/plugin/src/config/index.test.ts
@@ -42,8 +42,16 @@ function loadWithUserConfig(configText: string, extraEnv: Record<string, string>
             if (v === undefined) delete process.env[k];
             else process.env[k] = v;
         }
-        rmSync(xdg, { recursive: true, force: true });
-        rmSync(projectDir, { recursive: true, force: true });
+        try {
+            rmSync(xdg, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
+        try {
+            rmSync(projectDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
 }
 
@@ -81,8 +89,16 @@ function loadWithUserAndProjectConfig(
             if (v === undefined) delete process.env[k];
             else process.env[k] = v;
         }
-        rmSync(xdg, { recursive: true, force: true });
-        rmSync(projectDir, { recursive: true, force: true });
+        try {
+            rmSync(xdg, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
+        try {
+            rmSync(projectDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
 }
 
diff --git a/packages/plugin/src/config/variable.test.ts b/packages/plugin/src/config/variable.test.ts
index cf52a70..d7db1e6 100644
--- a/packages/plugin/src/config/variable.test.ts
+++ b/packages/plugin/src/config/variable.test.ts
@@ -14,7 +14,11 @@ describe("substituteConfigVariables", () => {
     });
 
     afterEach(() => {
-        rmSync(tmpDir, { recursive: true, force: true });
+        try {
+            rmSync(tmpDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
         process.env = { ...ORIGINAL_ENV };
     });
 
diff --git a/packages/plugin/src/features/magic-context/boundary-execution-cas-race.test.ts b/packages/plugin/src/features/magic-context/boundary-execution-cas-race.test.ts
index 3391b31..9a5c876 100644
--- a/packages/plugin/src/features/magic-context/boundary-execution-cas-race.test.ts
+++ b/packages/plugin/src/features/magic-context/boundary-execution-cas-race.test.ts
@@ -5,6 +5,7 @@ import { mkdtempSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { Database } from "../../shared/sqlite";
+import { closeQuietly } from "../../shared/sqlite-helpers";
 import {
     type DeferredExecutePayload,
     peekDeferredExecutePending,
@@ -50,16 +51,22 @@ function payload(id: string): DeferredExecutePayload {
 describe("deferred execute CAS race", () => {
     it("15. one WAL handle wins set-if-absent and the other no-ops", () => {
         const dir = mkdtempSync(join(tmpdir(), "boundary-exec-race-"));
+        const path = join(dir, "context.db");
+        const a = createRaceDb(path);
+        const b = createRaceDb(path);
         try {
-            const path = join(dir, "context.db");
-            const a = createRaceDb(path);
-            const b = createRaceDb(path);
             const first = setDeferredExecutePendingIfAbsent(a, "s1", payload("a"));
             const second = setDeferredExecutePendingIfAbsent(b, "s1", payload("b"));
             expect([first, second].filter(Boolean)).toHaveLength(1);
             expect(peekDeferredExecutePending(a, "s1")?.id).toBe(first ? "a" : "b");
         } finally {
-            rmSync(dir, { recursive: true, force: true });
+            closeQuietly(a);
+            closeQuietly(b);
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                // Ignore EBUSY on Windows
+            }
         }
     });
 });
diff --git a/packages/plugin/src/features/magic-context/compartment-lease.test.ts b/packages/plugin/src/features/magic-context/compartment-lease.test.ts
index 6dd1e2c..676ad89 100644
--- a/packages/plugin/src/features/magic-context/compartment-lease.test.ts
+++ b/packages/plugin/src/features/magic-context/compartment-lease.test.ts
@@ -43,10 +43,12 @@ describe("compartment state lease", () => {
         const db = makeDb();
         const first = acquireCompartmentLease(db, "ses", "holder-a");
         expect(first).not.toBeNull();
+
         db.prepare("UPDATE compartment_state_lease SET expires_at = ? WHERE session_id = ?").run(
             Date.now() + 1_000,
             "ses",
         );
+
         const second = acquireCompartmentLease(db, "ses", "holder-a");
         expect(second).not.toBeNull();
         expect(second!.expiresAt).toBeGreaterThan(first!.acquiredAt + 1_000);
@@ -56,10 +58,12 @@ describe("compartment state lease", () => {
     it("lets another holder reclaim an expired lease", () => {
         const db = makeDb();
         expect(acquireCompartmentLease(db, "ses", "holder-a")).not.toBeNull();
+
         db.prepare("UPDATE compartment_state_lease SET expires_at = ? WHERE session_id = ?").run(
             Date.now() - 1,
             "ses",
         );
+
         expect(acquireCompartmentLease(db, "ses", "holder-b")).not.toBeNull();
         expect(isCompartmentLeaseHeld(db, "ses", "holder-b")).toBe(true);
         expect(isCompartmentLeaseHeld(db, "ses", "holder-a")).toBe(false);
@@ -70,6 +74,7 @@ describe("compartment state lease", () => {
         const db = makeDb();
         expect(acquireCompartmentLease(db, "ses", "holder-a")).not.toBeNull();
         expect(renewCompartmentLease(db, "ses", "holder-b")).toBe(false);
+
         db.prepare("UPDATE compartment_state_lease SET expires_at = ? WHERE session_id = ?").run(
             Date.now() - 1,
             "ses",
@@ -81,10 +86,12 @@ describe("compartment state lease", () => {
     it("release is a no-op after another holder reclaims the row", () => {
         const db = makeDb();
         expect(acquireCompartmentLease(db, "ses", "holder-a")).not.toBeNull();
+
         db.prepare("UPDATE compartment_state_lease SET expires_at = ? WHERE session_id = ?").run(
             Date.now() - 1,
             "ses",
         );
+
         expect(acquireCompartmentLease(db, "ses", "holder-b")).not.toBeNull();
         releaseCompartmentLease(db, "ses", "holder-a");
         expect(isCompartmentLeaseHeld(db, "ses", "holder-b")).toBe(true);
@@ -105,7 +112,11 @@ describe("compartment state lease", () => {
         } finally {
             closeQuietly(dbA);
             closeQuietly(dbB);
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                // Ignore EBUSY on Windows
+            }
         }
     });
 
@@ -114,10 +125,13 @@ describe("compartment state lease", () => {
         const path = join(dir, "context.db");
         const setup = makeDb(path);
         closeQuietly(setup);
+
         try {
-            const pluginRoot = process.cwd().endsWith("/packages/plugin")
-                ? process.cwd()
-                : join(process.cwd(), "packages", "plugin");
+            const projectRoot = process.cwd().includes("packages")
+                ? join(process.cwd(), "..", "..")
+                : process.cwd();
+            const pluginRoot = join(projectRoot, "packages", "plugin");
+
             const script = `
                 const sqlite = await import(${JSON.stringify(`file://${pluginRoot}/src/shared/sqlite.ts`)});
                 const storageDb = await import(${JSON.stringify(`file://${pluginRoot}/src/features/magic-context/storage-db.ts`)});
@@ -128,13 +142,18 @@ describe("compartment state lease", () => {
                 db.close();
                 console.log(JSON.stringify({ ok }));
             `;
+
             const [a, b] = await Promise.all([
                 $`bun -e ${script} holder-a`.json() as Promise<{ ok: boolean }>,
                 $`bun -e ${script} holder-b`.json() as Promise<{ ok: boolean }>,
             ]);
             expect([a.ok, b.ok].filter(Boolean)).toHaveLength(1);
         } finally {
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                // Ignore EBUSY on Windows
+            }
         }
     });
 });
diff --git a/packages/plugin/src/features/magic-context/compartment-storage-v6.test.ts b/packages/plugin/src/features/magic-context/compartment-storage-v6.test.ts
index a8a1f1b..7d77482 100644
--- a/packages/plugin/src/features/magic-context/compartment-storage-v6.test.ts
+++ b/packages/plugin/src/features/magic-context/compartment-storage-v6.test.ts
@@ -16,7 +16,13 @@ function useTempDataHome(prefix: string): string {
 
 afterEach(() => {
     closeDatabase();
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs) {
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
+    }
     tempDirs.length = 0;
     process.env.XDG_DATA_HOME = undefined;
 });
diff --git a/packages/plugin/src/features/magic-context/compression-depth-storage.test.ts b/packages/plugin/src/features/magic-context/compression-depth-storage.test.ts
index fced84c..7eb5ee7 100644
--- a/packages/plugin/src/features/magic-context/compression-depth-storage.test.ts
+++ b/packages/plugin/src/features/magic-context/compression-depth-storage.test.ts
@@ -31,7 +31,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/features/magic-context/key-files/project-key-files.test.ts b/packages/plugin/src/features/magic-context/key-files/project-key-files.test.ts
index 36a6dff..a0977a8 100644
--- a/packages/plugin/src/features/magic-context/key-files/project-key-files.test.ts
+++ b/packages/plugin/src/features/magic-context/key-files/project-key-files.test.ts
@@ -30,7 +30,12 @@ const originalHome = process.env.HOME;
 afterEach(() => {
     setAftAvailabilityOverride(null);
     process.env.HOME = originalHome;
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs)
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     tempDirs.length = 0;
 });
 
diff --git a/packages/plugin/src/features/magic-context/memory/embedding.test.ts b/packages/plugin/src/features/magic-context/memory/embedding.test.ts
index cc879ce..8b051ae 100644
--- a/packages/plugin/src/features/magic-context/memory/embedding.test.ts
+++ b/packages/plugin/src/features/magic-context/memory/embedding.test.ts
@@ -132,7 +132,11 @@ describe("embedding module", () => {
             _resetEmbeddingSweepGuard();
             process.env.XDG_DATA_HOME = originalXdgDataHome;
             for (const dir of tempDirs) {
-                rmSync(dir, { recursive: true, force: true });
+                try {
+                    rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+                } catch {
+                    /* Ignore EBUSY on Windows */
+                }
             }
             tempDirs.length = 0;
         });
diff --git a/packages/plugin/src/features/magic-context/migrations-v11.test.ts b/packages/plugin/src/features/magic-context/migrations-v11.test.ts
index 2bdd395..17d7752 100644
--- a/packages/plugin/src/features/magic-context/migrations-v11.test.ts
+++ b/packages/plugin/src/features/magic-context/migrations-v11.test.ts
@@ -1,3 +1,5 @@
+/// <reference types="bun-types" />
+
 import { afterEach, describe, expect, test } from "bun:test";
 import { mkdtempSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
@@ -27,7 +29,13 @@ function useTempDataHome(prefix: string): string {
 
 afterEach(() => {
     closeDatabase();
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs) {
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows where closeDatabase doesn't synchronously release locks
+        }
+    }
     tempDirs.length = 0;
     process.env.XDG_DATA_HOME = undefined;
 });
diff --git a/packages/plugin/src/features/magic-context/migrations-v12.test.ts b/packages/plugin/src/features/magic-context/migrations-v12.test.ts
index 206945c..c9af1c4 100644
--- a/packages/plugin/src/features/magic-context/migrations-v12.test.ts
+++ b/packages/plugin/src/features/magic-context/migrations-v12.test.ts
@@ -21,7 +21,13 @@ function count(db: Database, table: string): number {
 
 afterEach(() => {
     closeDatabase();
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs) {
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
+    }
     tempDirs.length = 0;
     process.env.XDG_DATA_HOME = undefined;
 });
diff --git a/packages/plugin/src/features/magic-context/migrations-v13.test.ts b/packages/plugin/src/features/magic-context/migrations-v13.test.ts
index 38a9713..b25637f 100644
--- a/packages/plugin/src/features/magic-context/migrations-v13.test.ts
+++ b/packages/plugin/src/features/magic-context/migrations-v13.test.ts
@@ -22,7 +22,13 @@ function useTempDataHome(prefix: string): string {
 
 afterEach(() => {
     closeDatabase();
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs) {
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
+    }
     tempDirs.length = 0;
     process.env.XDG_DATA_HOME = undefined;
 });
diff --git a/packages/plugin/src/features/magic-context/migrations-v16.test.ts b/packages/plugin/src/features/magic-context/migrations-v16.test.ts
index 24ffd68..e6e6a28 100644
--- a/packages/plugin/src/features/magic-context/migrations-v16.test.ts
+++ b/packages/plugin/src/features/magic-context/migrations-v16.test.ts
@@ -14,7 +14,13 @@ function useTempDataHome(prefix: string): void {
 
 afterEach(() => {
     closeDatabase();
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs) {
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
+    }
     tempDirs.length = 0;
     process.env.XDG_DATA_HOME = undefined;
 });
diff --git a/packages/plugin/src/features/magic-context/migrations-v18-pi-marker.test.ts b/packages/plugin/src/features/magic-context/migrations-v18-pi-marker.test.ts
index 87bafca..6330379 100644
--- a/packages/plugin/src/features/magic-context/migrations-v18-pi-marker.test.ts
+++ b/packages/plugin/src/features/magic-context/migrations-v18-pi-marker.test.ts
@@ -21,7 +21,13 @@ function useTempDataHome(prefix: string): void {
 
 afterEach(() => {
     closeDatabase();
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs) {
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
+    }
     tempDirs.length = 0;
     process.env.XDG_DATA_HOME = undefined;
 });
diff --git a/packages/plugin/src/features/magic-context/migrations-v20.test.ts b/packages/plugin/src/features/magic-context/migrations-v20.test.ts
index da895f5..6790a55 100644
--- a/packages/plugin/src/features/magic-context/migrations-v20.test.ts
+++ b/packages/plugin/src/features/magic-context/migrations-v20.test.ts
@@ -21,7 +21,11 @@ describe("migration v20", () => {
         } finally {
             closeDatabase();
             process.env.XDG_DATA_HOME = undefined;
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                // Ignore EBUSY on Windows
+            }
         }
     });
 });
diff --git a/packages/plugin/src/features/magic-context/migrations-v21.test.ts b/packages/plugin/src/features/magic-context/migrations-v21.test.ts
index 0dd7718..057c9f8 100644
--- a/packages/plugin/src/features/magic-context/migrations-v21.test.ts
+++ b/packages/plugin/src/features/magic-context/migrations-v21.test.ts
@@ -20,7 +20,11 @@ describe("migration v21", () => {
         } finally {
             closeDatabase();
             process.env.XDG_DATA_HOME = undefined;
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                // Ignore EBUSY on Windows
+            }
         }
     });
 });
diff --git a/packages/plugin/src/features/magic-context/project-embedding-registry.test.ts b/packages/plugin/src/features/magic-context/project-embedding-registry.test.ts
index a2c2ca2..1be92a4 100644
--- a/packages/plugin/src/features/magic-context/project-embedding-registry.test.ts
+++ b/packages/plugin/src/features/magic-context/project-embedding-registry.test.ts
@@ -64,7 +64,11 @@ describe("project embedding registry", () => {
         closeDatabase();
         process.env.XDG_DATA_HOME = originalXdgDataHome;
         for (const dir of tempDirs) {
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         }
         tempDirs.length = 0;
     });
diff --git a/packages/plugin/src/features/magic-context/resolve-subagent-fallback.test.ts b/packages/plugin/src/features/magic-context/resolve-subagent-fallback.test.ts
index 3ed2b3b..ce0547d 100644
--- a/packages/plugin/src/features/magic-context/resolve-subagent-fallback.test.ts
+++ b/packages/plugin/src/features/magic-context/resolve-subagent-fallback.test.ts
@@ -51,7 +51,11 @@ describe("resolveIsSubagentFromOpenCodeDb", () => {
         } else {
             process.env.XDG_DATA_HOME = originalXdg;
         }
-        rmSync(tempDir, { recursive: true, force: true });
+        try {
+            rmSync(tempDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     });
 
     it("returns true for a child session with a non-empty parent_id", () => {
diff --git a/packages/plugin/src/features/magic-context/sticky-injection-cas-race.test.ts b/packages/plugin/src/features/magic-context/sticky-injection-cas-race.test.ts
index 3474b26..a1da0a5 100644
--- a/packages/plugin/src/features/magic-context/sticky-injection-cas-race.test.ts
+++ b/packages/plugin/src/features/magic-context/sticky-injection-cas-race.test.ts
@@ -36,7 +36,11 @@ describe("sticky-injection CAS helpers", () => {
                 { messageId: "m2", text: "text-2" },
             ]);
         } finally {
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         }
     });
 
@@ -51,7 +55,11 @@ describe("sticky-injection CAS helpers", () => {
             expect(pruneNoteNudgeAnchors(a, "s1", new Set(["m2"]))).toBe(1);
             expect(getNoteNudgeAnchors(b, "s1")).toEqual([{ messageId: "m2", text: "text-2" }]);
         } finally {
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         }
     });
 
@@ -70,7 +78,11 @@ describe("sticky-injection CAS helpers", () => {
             });
             expect(getNoteNudgeAnchors(db, "s1")).toEqual([{ messageId: "m1", text: "text-1" }]);
         } finally {
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         }
     });
 
@@ -93,7 +105,11 @@ describe("sticky-injection CAS helpers", () => {
                 }),
             ).toEqual({ ok: true, kind: "already-present", decision: stored });
         } finally {
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         }
     });
 });
diff --git a/packages/plugin/src/features/magic-context/storage-db-migration.test.ts b/packages/plugin/src/features/magic-context/storage-db-migration.test.ts
index 7c9461c..7828437 100644
--- a/packages/plugin/src/features/magic-context/storage-db-migration.test.ts
+++ b/packages/plugin/src/features/magic-context/storage-db-migration.test.ts
@@ -38,7 +38,11 @@ describe("storage-db legacy migration", () => {
             delete process.env.XDG_DATA_HOME;
         }
         try {
-            rmSync(tmpRoot, { recursive: true, force: true });
+            try {
+                rmSync(tmpRoot, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         } catch {
             // Non-fatal — tests on locked Windows file handles can leave temp
             // dirs that the OS will clean up later.
diff --git a/packages/plugin/src/features/magic-context/storage-db.test.ts b/packages/plugin/src/features/magic-context/storage-db.test.ts
index 5b5ad64..322aa0d 100644
--- a/packages/plugin/src/features/magic-context/storage-db.test.ts
+++ b/packages/plugin/src/features/magic-context/storage-db.test.ts
@@ -34,7 +34,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/features/magic-context/storage.test.ts b/packages/plugin/src/features/magic-context/storage.test.ts
index a89eba6..e071e26 100644
--- a/packages/plugin/src/features/magic-context/storage.test.ts
+++ b/packages/plugin/src/features/magic-context/storage.test.ts
@@ -61,7 +61,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/features/magic-context/tagger-recovery.test.ts b/packages/plugin/src/features/magic-context/tagger-recovery.test.ts
index 56cf83c..1408b1b 100644
--- a/packages/plugin/src/features/magic-context/tagger-recovery.test.ts
+++ b/packages/plugin/src/features/magic-context/tagger-recovery.test.ts
@@ -414,7 +414,11 @@ describe("initFromDb signature cache", () => {
                 dbA.close();
             }
         } finally {
-            rmSync(tmpDir, { recursive: true, force: true });
+            try {
+                rmSync(tmpDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         }
     });
 
diff --git a/packages/plugin/src/features/magic-context/tool-owner-backfill.test.ts b/packages/plugin/src/features/magic-context/tool-owner-backfill.test.ts
index c25ae85..6fef38a 100644
--- a/packages/plugin/src/features/magic-context/tool-owner-backfill.test.ts
+++ b/packages/plugin/src/features/magic-context/tool-owner-backfill.test.ts
@@ -27,7 +27,11 @@ const originalXdgDataHome = process.env.XDG_DATA_HOME;
 afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/auto-update-checker/index.test.ts b/packages/plugin/src/hooks/auto-update-checker/index.test.ts
index 38169b4..dbe7b25 100644
--- a/packages/plugin/src/hooks/auto-update-checker/index.test.ts
+++ b/packages/plugin/src/hooks/auto-update-checker/index.test.ts
@@ -61,7 +61,11 @@ afterEach(() => {
         const dir = tempDirs.pop();
         if (!dir) continue;
         try {
-            rmSync(dir, { recursive: true, force: true });
+            try {
+                rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         } catch {
             // Best-effort cleanup
         }
diff --git a/packages/plugin/src/hooks/magic-context/apply-operations.tool-drop.test.ts b/packages/plugin/src/hooks/magic-context/apply-operations.tool-drop.test.ts
index 36d6a72..c7cb342 100644
--- a/packages/plugin/src/hooks/magic-context/apply-operations.tool-drop.test.ts
+++ b/packages/plugin/src/hooks/magic-context/apply-operations.tool-drop.test.ts
@@ -29,7 +29,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/compaction-marker-consistency.test.ts b/packages/plugin/src/hooks/magic-context/compaction-marker-consistency.test.ts
index 2f16787..53749e9 100644
--- a/packages/plugin/src/hooks/magic-context/compaction-marker-consistency.test.ts
+++ b/packages/plugin/src/hooks/magic-context/compaction-marker-consistency.test.ts
@@ -60,7 +60,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/compaction-marker-manager.test.ts b/packages/plugin/src/hooks/magic-context/compaction-marker-manager.test.ts
index 7868a49..0e0eeb8 100644
--- a/packages/plugin/src/hooks/magic-context/compaction-marker-manager.test.ts
+++ b/packages/plugin/src/hooks/magic-context/compaction-marker-manager.test.ts
@@ -98,7 +98,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 });
@@ -255,7 +259,7 @@ describe("applyDeferredCompactionMarker — outcomes", () => {
         // No user message exists at or before the boundary → inject returns
         // null → retryable-failure.
         expect(outcome.kind).toBe("retryable-failure");
-        // Persisted state remains absent (we never wrote a marker)
+        // Persisted state remains absent ( we never wrote a marker)
         const persisted = getPersistedCompactionMarkerState(db, "ses-1");
         expect(persisted).toBeNull();
     });
diff --git a/packages/plugin/src/hooks/magic-context/compartment-runner-drop-queue.test.ts b/packages/plugin/src/hooks/magic-context/compartment-runner-drop-queue.test.ts
index 33a94c1..82ad17f 100644
--- a/packages/plugin/src/hooks/magic-context/compartment-runner-drop-queue.test.ts
+++ b/packages/plugin/src/hooks/magic-context/compartment-runner-drop-queue.test.ts
@@ -37,7 +37,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/compartment-runner-timeout.test.ts b/packages/plugin/src/hooks/magic-context/compartment-runner-timeout.test.ts
index 5ed149b..49f4649 100644
--- a/packages/plugin/src/hooks/magic-context/compartment-runner-timeout.test.ts
+++ b/packages/plugin/src/hooks/magic-context/compartment-runner-timeout.test.ts
@@ -19,7 +19,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/compartment-runner.test.ts b/packages/plugin/src/hooks/magic-context/compartment-runner.test.ts
index 268adb5..a2d9513 100644
--- a/packages/plugin/src/hooks/magic-context/compartment-runner.test.ts
+++ b/packages/plugin/src/hooks/magic-context/compartment-runner.test.ts
@@ -55,13 +55,21 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 
     // Clean up historian debug dumps created during tests
     const dumpDir = join(tmpdir(), "magic-context-historian");
-    rmSync(dumpDir, { recursive: true, force: true });
+    try {
+        rmSync(dumpDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+    } catch {
+        // Ignore EBUSY on Windows
+    }
 });
 
 describe("executeContextRecomp", () => {
diff --git a/packages/plugin/src/hooks/magic-context/compartment-trigger.test.ts b/packages/plugin/src/hooks/magic-context/compartment-trigger.test.ts
index 1ce0a18..adbd757 100644
--- a/packages/plugin/src/hooks/magic-context/compartment-trigger.test.ts
+++ b/packages/plugin/src/hooks/magic-context/compartment-trigger.test.ts
@@ -22,7 +22,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/event-handler.test.ts b/packages/plugin/src/hooks/magic-context/event-handler.test.ts
index 4b848d1..aea509a 100644
--- a/packages/plugin/src/hooks/magic-context/event-handler.test.ts
+++ b/packages/plugin/src/hooks/magic-context/event-handler.test.ts
@@ -53,7 +53,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/historian-state-file.test.ts b/packages/plugin/src/hooks/magic-context/historian-state-file.test.ts
index 425a9c6..297e252 100644
--- a/packages/plugin/src/hooks/magic-context/historian-state-file.test.ts
+++ b/packages/plugin/src/hooks/magic-context/historian-state-file.test.ts
@@ -15,7 +15,11 @@ beforeEach(() => {
 });
 
 afterEach(() => {
-    rmSync(tempProjectDir, { recursive: true, force: true });
+    try {
+        rmSync(tempProjectDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+    } catch {
+        /* Ignore EBUSY on Windows */
+    }
 });
 
 describe("maybeWriteHistorianStateFile", () => {
diff --git a/packages/plugin/src/hooks/magic-context/hook.test.ts b/packages/plugin/src/hooks/magic-context/hook.test.ts
index 15ea16d..79d9ea6 100644
--- a/packages/plugin/src/hooks/magic-context/hook.test.ts
+++ b/packages/plugin/src/hooks/magic-context/hook.test.ts
@@ -46,7 +46,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/nudger.test.ts b/packages/plugin/src/hooks/magic-context/nudger.test.ts
index 22354c0..f27de46 100644
--- a/packages/plugin/src/hooks/magic-context/nudger.test.ts
+++ b/packages/plugin/src/hooks/magic-context/nudger.test.ts
@@ -23,7 +23,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/read-session-chunk.test.ts b/packages/plugin/src/hooks/magic-context/read-session-chunk.test.ts
index 5e32af5..99a5e47 100644
--- a/packages/plugin/src/hooks/magic-context/read-session-chunk.test.ts
+++ b/packages/plugin/src/hooks/magic-context/read-session-chunk.test.ts
@@ -20,7 +20,11 @@ const originalXdgDataHome = process.env.XDG_DATA_HOME;
 afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/read-session-db.test.ts b/packages/plugin/src/hooks/magic-context/read-session-db.test.ts
index 081563c..dcff47b 100644
--- a/packages/plugin/src/hooks/magic-context/read-session-db.test.ts
+++ b/packages/plugin/src/hooks/magic-context/read-session-db.test.ts
@@ -21,7 +21,11 @@ afterEach(() => {
     closeReadOnlySessionDb();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/system-prompt-hash.test.ts b/packages/plugin/src/hooks/magic-context/system-prompt-hash.test.ts
index 627f094..e677cf7 100644
--- a/packages/plugin/src/hooks/magic-context/system-prompt-hash.test.ts
+++ b/packages/plugin/src/hooks/magic-context/system-prompt-hash.test.ts
@@ -41,7 +41,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/tag-messages-collision.test.ts b/packages/plugin/src/hooks/magic-context/tag-messages-collision.test.ts
index 99d8a9f..b934130 100644
--- a/packages/plugin/src/hooks/magic-context/tag-messages-collision.test.ts
+++ b/packages/plugin/src/hooks/magic-context/tag-messages-collision.test.ts
@@ -30,7 +30,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/tool-input-preservation.test.ts b/packages/plugin/src/hooks/magic-context/tool-input-preservation.test.ts
index cc8c83f..7ff80bb 100644
--- a/packages/plugin/src/hooks/magic-context/tool-input-preservation.test.ts
+++ b/packages/plugin/src/hooks/magic-context/tool-input-preservation.test.ts
@@ -15,7 +15,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform-cache-busting-signals.test.ts b/packages/plugin/src/hooks/magic-context/transform-cache-busting-signals.test.ts
index 7d5d866..b250806 100644
--- a/packages/plugin/src/hooks/magic-context/transform-cache-busting-signals.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-cache-busting-signals.test.ts
@@ -79,7 +79,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform-compartment-phase.test.ts b/packages/plugin/src/hooks/magic-context/transform-compartment-phase.test.ts
index 4a95ce8..5e809d2 100644
--- a/packages/plugin/src/hooks/magic-context/transform-compartment-phase.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-compartment-phase.test.ts
@@ -84,7 +84,12 @@ beforeEach(() => {
 afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
-    if (tempDir) rmSync(tempDir, { recursive: true, force: true });
+    if (tempDir)
+        try {
+            rmSync(tempDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
 });
 
 describe("runCompartmentPhase - 95% emergency notification idempotency", () => {
diff --git a/packages/plugin/src/hooks/magic-context/transform-context-state.test.ts b/packages/plugin/src/hooks/magic-context/transform-context-state.test.ts
index 82d041b..a9d09c5 100644
--- a/packages/plugin/src/hooks/magic-context/transform-context-state.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-context-state.test.ts
@@ -20,7 +20,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform-heuristic-cleanup-persistence.test.ts b/packages/plugin/src/hooks/magic-context/transform-heuristic-cleanup-persistence.test.ts
index 99cb6ea..bad9279 100644
--- a/packages/plugin/src/hooks/magic-context/transform-heuristic-cleanup-persistence.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-heuristic-cleanup-persistence.test.ts
@@ -118,7 +118,11 @@ afterEach(() => {
     process.env.XDG_DATA_HOME = originalXdgDataHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform-index-staleness.test.ts b/packages/plugin/src/hooks/magic-context/transform-index-staleness.test.ts
index 05166d0..6b2a012 100644
--- a/packages/plugin/src/hooks/magic-context/transform-index-staleness.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-index-staleness.test.ts
@@ -38,7 +38,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform-nudge-cache.test.ts b/packages/plugin/src/hooks/magic-context/transform-nudge-cache.test.ts
index 9f12f34..bded1b5 100644
--- a/packages/plugin/src/hooks/magic-context/transform-nudge-cache.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-nudge-cache.test.ts
@@ -35,7 +35,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform-operations.test.ts b/packages/plugin/src/hooks/magic-context/transform-operations.test.ts
index aaf33f4..d047359 100644
--- a/packages/plugin/src/hooks/magic-context/transform-operations.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-operations.test.ts
@@ -33,7 +33,11 @@ afterEach(() => {
     closeDatabase();
     process.env.XDG_DATA_HOME = originalXdgDataHome;
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            // Ignore EBUSY on Windows
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform-todo-state.test.ts b/packages/plugin/src/hooks/magic-context/transform-todo-state.test.ts
index 3de86f0..59de33d 100644
--- a/packages/plugin/src/hooks/magic-context/transform-todo-state.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform-todo-state.test.ts
@@ -43,7 +43,12 @@ function useTempDataHome(prefix: string): void {
 
 afterEach(() => {
     closeDatabase();
-    for (const dir of tempDirs) rmSync(dir, { recursive: true, force: true });
+    for (const dir of tempDirs)
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     tempDirs.length = 0;
     process.env.XDG_DATA_HOME = undefined;
 });
diff --git a/packages/plugin/src/hooks/magic-context/transform.test.ts b/packages/plugin/src/hooks/magic-context/transform.test.ts
index ac88195..78471f7 100644
--- a/packages/plugin/src/hooks/magic-context/transform.test.ts
+++ b/packages/plugin/src/hooks/magic-context/transform.test.ts
@@ -77,7 +77,11 @@ afterEach(() => {
     else process.env.XDG_CACHE_HOME = originalXdgCacheHome;
 
     for (const dir of tempDirs) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
     tempDirs.length = 0;
 });
diff --git a/packages/plugin/src/shared/announcement.test.ts b/packages/plugin/src/shared/announcement.test.ts
index a76a97e..032b4aa 100644
--- a/packages/plugin/src/shared/announcement.test.ts
+++ b/packages/plugin/src/shared/announcement.test.ts
@@ -35,7 +35,8 @@ afterEach(() => {
         process.env.XDG_DATA_HOME = originalXdg;
     }
     try {
-        fs.rmSync(tmpRoot, { recursive: true, force: true });
+        // maxRetries/retryDelay ride out transient EBUSY/EPERM on Windows.
+        fs.rmSync(tmpRoot, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
     } catch {
         // best-effort
     }
diff --git a/packages/plugin/src/shared/conflict-detector.test.ts b/packages/plugin/src/shared/conflict-detector.test.ts
index 1a297c0..67b51a1 100644
--- a/packages/plugin/src/shared/conflict-detector.test.ts
+++ b/packages/plugin/src/shared/conflict-detector.test.ts
@@ -46,8 +46,21 @@ describe("detectConflicts", () => {
             else process.env[k] = v;
         }
         // Test directories live under tmpdir(); cleanup is best-effort.
-        rmSync(projectDir, { recursive: true, force: true });
-        rmSync(userConfigDir, { recursive: true, force: true });
+        try {
+            rmSync(projectDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
+        try {
+            rmSync(userConfigDir, {
+                recursive: true,
+                force: true,
+                maxRetries: 10,
+                retryDelay: 100,
+            });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     });
 
     function writeProjectConfig(plugins: Array<string | [string, unknown]>): void {
diff --git a/packages/plugin/src/shared/conflict-fixer.test.ts b/packages/plugin/src/shared/conflict-fixer.test.ts
index 744a80a..0a3d56d 100644
--- a/packages/plugin/src/shared/conflict-fixer.test.ts
+++ b/packages/plugin/src/shared/conflict-fixer.test.ts
@@ -38,7 +38,11 @@ describe("fixConflicts", () => {
             if (value === undefined) delete process.env[key];
             else process.env[key] = value;
         }
-        rmSync(root, { recursive: true, force: true });
+        try {
+            rmSync(root, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     });
 
     it("preserves JSONC comments and tuple plugin entries while removing canonical DCP", () => {
diff --git a/packages/plugin/src/shared/models-dev-cache.test.ts b/packages/plugin/src/shared/models-dev-cache.test.ts
index 18b58af..09b6f51 100644
--- a/packages/plugin/src/shared/models-dev-cache.test.ts
+++ b/packages/plugin/src/shared/models-dev-cache.test.ts
@@ -39,7 +39,11 @@ describe("models-dev-cache", () => {
             if (v === undefined) delete process.env[k];
             else process.env[k] = v;
         }
-        rmSync(tempDir, { recursive: true, force: true });
+        try {
+            rmSync(tempDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
         clearModelsDevCache();
     });
 
diff --git a/packages/plugin/src/shared/opencode-compaction-detector.test.ts b/packages/plugin/src/shared/opencode-compaction-detector.test.ts
index 5f64da7..748e39a 100644
--- a/packages/plugin/src/shared/opencode-compaction-detector.test.ts
+++ b/packages/plugin/src/shared/opencode-compaction-detector.test.ts
@@ -18,7 +18,11 @@ describe("opencode-compaction-detector", () => {
     });
 
     afterEach(() => {
-        rmSync(tmpDir, { recursive: true, force: true });
+        try {
+            rmSync(tmpDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
         delete process.env.OPENCODE_DISABLE_AUTOCOMPACT;
     });
 
@@ -30,7 +34,11 @@ describe("opencode-compaction-detector", () => {
             const result = isOpenCodeAutoCompactionEnabled(emptyDir);
 
             expect(result).toBe(true);
-            rmSync(emptyDir, { recursive: true, force: true });
+            try {
+                rmSync(emptyDir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+            } catch {
+                /* Ignore EBUSY on Windows */
+            }
         });
     });
 
diff --git a/packages/plugin/src/shared/rpc-client.test.ts b/packages/plugin/src/shared/rpc-client.test.ts
index ed123b0..155e014 100644
--- a/packages/plugin/src/shared/rpc-client.test.ts
+++ b/packages/plugin/src/shared/rpc-client.test.ts
@@ -20,7 +20,11 @@ afterEach(async () => {
         await server.close();
     }
     for (const dir of tempDirs.splice(0)) {
-        rmSync(dir, { recursive: true, force: true });
+        try {
+            rmSync(dir, { recursive: true, force: true, maxRetries: 10, retryDelay: 100 });
+        } catch {
+            /* Ignore EBUSY on Windows */
+        }
     }
 });