diff --git a/packages/cli/src/index.ts b/packages/cli/src/index.ts
index 48b74e3..973e4ed 100644
--- a/packages/cli/src/index.ts
+++ b/packages/cli/src/index.ts
@@ -32,7 +32,7 @@ type Flags = Record<string, string | boolean | string[]>;
 
 /** Flags that consume the next token as their value. All others are boolean. */
 const VALUE_FLAGS = new Set([
-  "store",
+  "home",
   "format",
   "var-db",
   "tag",
@@ -89,8 +89,8 @@ const { flags, positional } = parseArgs(process.argv.slice(2));
 
 const defaultStorePath = join(homedir(), ".ocas");
 const storePath =
-  typeof flags.store === "string"
-    ? flags.store
+  typeof flags.home === "string"
+    ? flags.home
     : (process.env["OCAS_HOME"] ?? defaultStorePath);
 const compact = flags.json === true;
 
@@ -849,7 +849,7 @@ async function cmdListSchema(_args: string[]): Promise<void> {
 
 function printUsage(): void {
   console.log(`\
-Usage: ocas [--store <path>] [--json] <command> [args]
+Usage: ocas [--home <path>] [--json] <command> [args]
 
 All JSON commands emit a { type, value } envelope. The type is the hash of the
 command's @ocas/output/* schema (shown in parentheses); pipe any envelope into
@@ -880,7 +880,7 @@ Commands:
   gc                                Run garbage collection                             (@ocas/output/gc)
 
 Flags:
-  --store <path>      Store directory (default: $OCAS_HOME or ~/.ocas)
+  --home <path>       Store directory (default: $OCAS_HOME or ~/.ocas)
   --var-db <path>     Variable database path (default: <store>/variables.db)
   --json              Compact JSON output
   --schema <hash>     Schema hash filter for var get/delete/tag/list
diff --git a/packages/cli/tests/__snapshots__/edge-cases.test.ts.snap b/packages/cli/tests/__snapshots__/edge-cases.test.ts.snap
index fb7cecc..ec785a3 100644
--- a/packages/cli/tests/__snapshots__/edge-cases.test.ts.snap
+++ b/packages/cli/tests/__snapshots__/edge-cases.test.ts.snap
@@ -7,7 +7,7 @@ exports[`Phase 7: Edge Cases 7.3 var set empty name errors 1`] = `"Usage: ocas v
 exports[`Phase 7: Edge Cases 7.4 var set name with invalid chars errors 1`] = `"Error: Invalid variable name "invalid name!": Segment "invalid name!" contains invalid characters (only @, a-z, A-Z, 0-9, ., _, - allowed)"`;
 
 exports[`Phase 7: Edge Cases 7.5 no subcommand shows help text 1`] = `
-"Usage: ocas [--store <path>] [--json] <command> [args]
+"Usage: ocas [--home <path>] [--json] <command> [args]
 
 All JSON commands emit a { type, value } envelope. The type is the hash of the
 command's @ocas/output/* schema (shown in parentheses); pipe any envelope into
@@ -38,7 +38,7 @@ Commands:
   gc                                Run garbage collection                             (@ocas/output/gc)
 
 Flags:
-  --store <path>      Store directory (default: ~/.ocas)
+  --home <path>       Store directory (default: $OCAS_HOME or ~/.ocas)
   --var-db <path>     Variable database path (default: <store>/variables.db)
   --json              Compact JSON output
   --schema <hash>     Schema hash filter for var get/delete/tag/list
diff --git a/packages/cli/tests/alias.test.ts b/packages/cli/tests/alias.test.ts
index 8578194..7fd63be 100644
--- a/packages/cli/tests/alias.test.ts
+++ b/packages/cli/tests/alias.test.ts
@@ -40,7 +40,7 @@ async function runCliAlias(...args: string[]): Promise<{
   exitCode: number;
 }> {
   const proc = Bun.spawn(
-    ["bun", "run", cliPath, "--store", storePath, ...args],
+    ["bun", "run", cliPath, "--home", storePath, ...args],
     {
       stdout: "pipe",
       stderr: "pipe",
diff --git a/packages/cli/tests/edge-cases.test.ts b/packages/cli/tests/edge-cases.test.ts
index 0e912f3..ff99563 100644
--- a/packages/cli/tests/edge-cases.test.ts
+++ b/packages/cli/tests/edge-cases.test.ts
@@ -46,7 +46,7 @@ describe("Phase 7: Edge Cases", () => {
     args: string[],
   ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
     const proc = Bun.spawn(
-      ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+      ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
       { stdout: "pipe", stderr: "pipe" },
     );
     const exitCode = await proc.exited;
@@ -130,14 +130,14 @@ describe("Phase 7: Edge Cases", () => {
     expect(combined.toLowerCase()).toContain("usage");
   });
 
-  test("7.6 --store path is a file errors", async () => {
+  test("7.6 --home path is a file errors", async () => {
     const fileAsStore = join(tmpStore, "not-a-directory");
     writeFileSync(fileAsStore, "test");
     const proc = Bun.spawn(
       [
         "bun",
         entrypoint,
-        "--store",
+        "--home",
         fileAsStore,
         "--var-db",
         varDbPath,
@@ -165,7 +165,7 @@ describe("Phase 3: Variable System", () => {
     args: string[],
   ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
     const proc = Bun.spawn(
-      ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+      ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
       { stdout: "pipe", stderr: "pipe" },
     );
     const exitCode = await proc.exited;
@@ -354,7 +354,7 @@ describe("Phase 4: Template System", () => {
     args: string[],
   ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
     const proc = Bun.spawn(
-      ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+      ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
       { stdout: "pipe", stderr: "pipe" },
     );
     const exitCode = await proc.exited;
diff --git a/packages/cli/tests/gc.test.ts b/packages/cli/tests/gc.test.ts
index 6850c72..eb3e0bb 100644
--- a/packages/cli/tests/gc.test.ts
+++ b/packages/cli/tests/gc.test.ts
@@ -50,7 +50,7 @@ async function runCli(
   args: string[],
 ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
   const proc = Bun.spawn(
-    ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+    ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
     { stdout: "pipe", stderr: "pipe" },
   );
   const exitCode = await proc.exited;
@@ -84,7 +84,7 @@ describe("Phase 6: GC", () => {
       [
         "bun",
         entrypoint,
-        "--store",
+        "--home",
         tmpStore,
         "--var-db",
         varDbPath,
diff --git a/packages/cli/tests/helpers.ts b/packages/cli/tests/helpers.ts
index b7d13e8..b3c4bbc 100644
--- a/packages/cli/tests/helpers.ts
+++ b/packages/cli/tests/helpers.ts
@@ -55,7 +55,7 @@ export async function runCli(
   storePath?: string,
 ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
   const finalArgs = storePath
-    ? ["bun", entrypoint, "--store", storePath, ...args]
+    ? ["bun", entrypoint, "--home", storePath, ...args]
     : ["bun", entrypoint, ...args];
   const proc = Bun.spawn(finalArgs, {
     stdout: "pipe",
@@ -72,7 +72,7 @@ export async function runCliWithStdin(
   storePath: string,
   stdin: string,
 ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
-  const finalArgs = ["bun", entrypoint, "--store", storePath, ...args];
+  const finalArgs = ["bun", entrypoint, "--home", storePath, ...args];
   const proc = Bun.spawn(finalArgs, {
     stdout: "pipe",
     stderr: "pipe",
diff --git a/packages/cli/tests/pipe.test.ts b/packages/cli/tests/pipe.test.ts
index 6d1d60a..cec546a 100644
--- a/packages/cli/tests/pipe.test.ts
+++ b/packages/cli/tests/pipe.test.ts
@@ -52,7 +52,7 @@ async function runCli(
   args: string[],
 ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
   const proc = Bun.spawn(
-    ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+    ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
     { stdout: "pipe", stderr: "pipe" },
   );
   const exitCode = await proc.exited;
@@ -66,7 +66,7 @@ async function runCliWithStdin(
   stdin: string,
 ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
   const proc = Bun.spawn(
-    ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+    ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
     { stdin: "pipe", stdout: "pipe", stderr: "pipe" },
   );
   proc.stdin.write(stdin);
diff --git a/packages/cli/tests/put-get-has.test.ts b/packages/cli/tests/put-get-has.test.ts
index 57242ee..04a4565 100644
--- a/packages/cli/tests/put-get-has.test.ts
+++ b/packages/cli/tests/put-get-has.test.ts
@@ -50,7 +50,7 @@ async function runCli(
   args: string[],
 ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
   const proc = Bun.spawn(
-    ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+    ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
     { stdout: "pipe", stderr: "pipe" },
   );
   const exitCode = await proc.exited;
diff --git a/packages/cli/tests/render.test.ts b/packages/cli/tests/render.test.ts
index 7494af5..be0e360 100644
--- a/packages/cli/tests/render.test.ts
+++ b/packages/cli/tests/render.test.ts
@@ -62,7 +62,7 @@ describe("Phase 5: Render", () => {
     args: string[],
   ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
     const proc = Bun.spawn(
-      ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+      ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
       { stdout: "pipe", stderr: "pipe" },
     );
     const exitCode = await proc.exited;
@@ -76,7 +76,7 @@ describe("Phase 5: Render", () => {
     stdin: string,
   ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
     const proc = Bun.spawn(
-      ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+      ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
       { stdin: "pipe", stdout: "pipe", stderr: "pipe" },
     );
     proc.stdin.write(stdin);
diff --git a/packages/cli/tests/schema-validation.test.ts b/packages/cli/tests/schema-validation.test.ts
index cc70682..b89f4ea 100644
--- a/packages/cli/tests/schema-validation.test.ts
+++ b/packages/cli/tests/schema-validation.test.ts
@@ -590,7 +590,7 @@ describe("Phase 2: Schema Validation", () => {
       [
         "bun",
         entrypoint,
-        "--store",
+        "--home",
         tmpStore,
         "--var-db",
         varDbPath,
@@ -616,7 +616,7 @@ describe("Phase 2: Schema Validation", () => {
       [
         "bun",
         entrypoint,
-        "--store",
+        "--home",
         tmpStore,
         "--var-db",
         varDbPath,
@@ -641,7 +641,7 @@ describe("Phase 2: Schema Validation", () => {
       [
         "bun",
         entrypoint,
-        "--store",
+        "--home",
         tmpStore,
         "--var-db",
         varDbPath,
diff --git a/packages/cli/tests/template.test.ts b/packages/cli/tests/template.test.ts
index c89d585..92326a6 100644
--- a/packages/cli/tests/template.test.ts
+++ b/packages/cli/tests/template.test.ts
@@ -49,7 +49,7 @@ async function runCli(...args: string[]): Promise<{
       "bun",
       "run",
       cliPath,
-      "--store",
+      "--home",
       storePath,
       "--var-db",
       varDbPath,
diff --git a/packages/cli/tests/variable.test.ts b/packages/cli/tests/variable.test.ts
index b538c8f..266edef 100644
--- a/packages/cli/tests/variable.test.ts
+++ b/packages/cli/tests/variable.test.ts
@@ -49,7 +49,7 @@ async function runCli(...args: string[]): Promise<{
       "bun",
       "run",
       cliPath,
-      "--store",
+      "--home",
       storePath,
       "--var-db",
       varDbPath,
@@ -949,7 +949,7 @@ describe("global options", () => {
     expect(lines.length).toBe(1);
   });
 
-  test("--store flag for custom store path", async () => {
+  test("--home flag for custom store path", async () => {
     const customStorePath = join(testDir, "custom-store");
     mkdirSync(customStorePath, { recursive: true });
 
@@ -963,7 +963,7 @@ describe("global options", () => {
         "bun",
         "run",
         cliPath,
-        "--store",
+        "--home",
         customStorePath,
         "--var-db",
         varDbPath,
@@ -994,7 +994,7 @@ describe("global options", () => {
         "bun",
         "run",
         cliPath,
-        "--store",
+        "--home",
         storePath,
         "--var-db",
         customDbPath,
diff --git a/packages/cli/tests/verify-refs-walk.test.ts b/packages/cli/tests/verify-refs-walk.test.ts
index 9c7fd41..9ca37ed 100644
--- a/packages/cli/tests/verify-refs-walk.test.ts
+++ b/packages/cli/tests/verify-refs-walk.test.ts
@@ -47,7 +47,7 @@ async function runCli(
   args: string[],
 ): Promise<{ stdout: string; stderr: string; exitCode: number }> {
   const proc = Bun.spawn(
-    ["bun", entrypoint, "--store", tmpStore, "--var-db", varDbPath, ...args],
+    ["bun", entrypoint, "--home", tmpStore, "--var-db", varDbPath, ...args],
     { stdout: "pipe", stderr: "pipe" },
   );
   const exitCode = await proc.exited;