Migrate to official @cursor/sdk and composite action

.changeset/migrate-sdk.md

@@ -0,0 +1,5 @@
+---
+"@pungrumpy/cursor-action": major
+---
+
+Migrate to the official `@cursor/sdk` and update action execution type to composite.

README.md

@@ -161,7 +161,7 @@ env "INPUT_API-KEY=$CURSOR_API_KEY" \
     "INPUT_MODEL=auto" \
     "INPUT_PERMISSIONS=read-only" \
     "INPUT_TIMEOUT=60" \
-    node dist/index.js
+    node dist/index.mjs
 ```
 
 ## CI and release notes

__tests__/input.test.ts

@@ -43,28 +43,31 @@ describe("getInputs", () => {
     expect(inputs.timeout).toBe(300);
   });
 
-  it("accepts a pinned semver version", () => {
+  it("warns if cursor-version is provided and not latest", () => {
     setupInputs({ "cursor-version": "1.2.3" });
     const inputs = getInputs();
     expect(inputs.cursorVersion).toBe("1.2.3");
+    expect(mockWarning).toHaveBeenCalledWith(
+      expect.stringContaining("deprecated")
+    );
   });
 
-  it("accepts a pinned semver version with v prefix", () => {
-    setupInputs({ "cursor-version": "v1.2.3" });
-    const inputs = getInputs();
-    expect(inputs.cursorVersion).toBe("v1.2.3");
-  });
-
-  it("accepts a pinned Cursor lab build id", () => {
-    setupInputs({ "cursor-version": "2026.03.20-44cb435" });
+  it("treats empty cursor-version as omitted (undefined), matching optional typing", () => {
+    setupInputs({ "cursor-version": "" });
     const inputs = getInputs();
-    expect(inputs.cursorVersion).toBe("2026.03.20-44cb435");
+    expect(inputs.cursorVersion).toBeUndefined();
+    expect(mockWarning).not.toHaveBeenCalledWith(
+      expect.stringContaining("deprecated")
+    );
   });
 
-  it("accepts a pinned lab build id with v prefix", () => {
-    setupInputs({ "cursor-version": "v2026.03.20-44cb435" });
+  it("trims cursor-version whitespace", () => {
+    setupInputs({ "cursor-version": "  1.0.0  " });
     const inputs = getInputs();
-    expect(inputs.cursorVersion).toBe("v2026.03.20-44cb435");
+    expect(inputs.cursorVersion).toBe("1.0.0");
+    expect(mockWarning).toHaveBeenCalledWith(
+      expect.stringContaining("deprecated")
+    );
   });
 
   it("throws on invalid permission value", () => {
@@ -87,11 +90,6 @@ describe("getInputs", () => {
     expect(() => getInputs()).toThrow(/cannot be empty/);
   });
 
-  it("throws on invalid version format", () => {
-    setupInputs({ "cursor-version": "not-a-version" });
-    expect(() => getInputs()).toThrow(/Invalid 'cursor-version'/);
-  });
-
   it("warns on very long timeout", () => {
     setupInputs({ timeout: "7200" });
     getInputs();

__tests__/output.test.ts

@@ -36,17 +36,15 @@ describe("setOutputs", () => {
       stderr: "",
       stdout: "Here is my analysis.",
     };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
 
     expect(mockSetOutput).toHaveBeenCalledWith(
       "summary",
       "Here is my analysis."
     );
     expect(mockSetOutput).toHaveBeenCalledWith("exit-code", "0");
-    expect(mockSetOutput).toHaveBeenCalledWith("cache-hit", "false");
     expect(outputs.summary).toBe("Here is my analysis.");
     expect(outputs.exitCode).toBe(0);
-    expect(outputs.cacheHit).toBe(false);
     expect(mockSummaryChain.write).toHaveBeenCalled();
   });
 
@@ -56,9 +54,8 @@ describe("setOutputs", () => {
       stderr: "",
       stdout: JSON.stringify({ response: "JSON response text" }),
     };
-    const outputs = await setOutputs(result, true);
+    const outputs = await setOutputs(result);
     expect(outputs.summary).toBe("JSON response text");
-    expect(outputs.cacheHit).toBe(true);
   });
 
   it("extracts summary from JSON summary field", async () => {
@@ -67,7 +64,7 @@ describe("setOutputs", () => {
       stderr: "",
       stdout: JSON.stringify({ summary: "Summary field text" }),
     };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
     expect(outputs.summary).toBe("Summary field text");
   });
 
@@ -77,7 +74,7 @@ describe("setOutputs", () => {
       stderr: "",
       stdout: JSON.stringify({ result: "Result field text" }),
     };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
     expect(outputs.summary).toBe("Result field text");
   });
 
@@ -87,7 +84,7 @@ describe("setOutputs", () => {
       stderr: "",
       stdout: JSON.stringify({ output: "Output field text" }),
     };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
     expect(outputs.summary).toBe("Output field text");
   });
 
@@ -97,13 +94,13 @@ describe("setOutputs", () => {
       stderr: "",
       stdout: JSON.stringify({ text: "Text field value" }),
     };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
     expect(outputs.summary).toBe("Text field value");
   });
 
   it("handles empty stdout gracefully", async () => {
     const result = { exitCode: 0, stderr: "", stdout: "" };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
     expect(outputs.summary).toBe("");
   });
 
@@ -113,7 +110,7 @@ describe("setOutputs", () => {
       stderr: "",
       stdout: "\u001B[32mGreen text\u001B[0m",
     };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
     expect(outputs.summary).toBe("Green text");
   });
 
@@ -123,7 +120,7 @@ describe("setOutputs", () => {
       stderr: "something failed",
       stdout: "error output",
     };
-    const outputs = await setOutputs(result, false);
+    const outputs = await setOutputs(result);
     expect(outputs.exitCode).toBe(1);
     expect(mockSetOutput).toHaveBeenCalledWith("exit-code", "1");
   });