Extensibility: Gemini.md files (#944)

packages/core/src/utils/memoryDiscovery.test.ts

@@ -564,4 +564,32 @@ describe('loadServerHierarchicalMemory', () => {
     );
     consoleDebugSpy.mockRestore();
   });
+
+  it('should load extension context file paths', async () => {
+    const extensionFilePath = '/test/extensions/ext1/gemini.md';
+    mockFs.access.mockImplementation(async (p) => {
+      if (p === extensionFilePath) {
+        return undefined;
+      }
+      throw new Error('File not found');
+    });
+    mockFs.readFile.mockImplementation(async (p) => {
+      if (p === extensionFilePath) {
+        return 'Extension memory content';
+      }
+      throw new Error('File not found');
+    });
+
+    const { memoryContent, fileCount } = await loadServerHierarchicalMemory(
+      CWD,
+      false,
+      [extensionFilePath],
+    );
+
+    expect(memoryContent).toBe(
+      `--- Context from: ${path.relative(CWD, extensionFilePath)} ---\nExtension memory content\n--- End of Context from: ${path.relative(CWD, extensionFilePath)} ---`,
+    );
+    expect(fileCount).toBe(1);
+    expect(mockFs.readFile).toHaveBeenCalledWith(extensionFilePath, 'utf-8');
+  });
 });

packages/core/src/utils/memoryDiscovery.ts

@@ -81,6 +81,7 @@ async function getGeminiMdFilePathsInternal(
   currentWorkingDirectory: string,
   userHomePath: string,
   debugMode: boolean,
+  extensionContextFilePaths: string[] = [],
 ): Promise<string[]> {
   const resolvedCwd = path.resolve(currentWorkingDirectory);
   const resolvedHome = path.resolve(userHomePath);
@@ -195,6 +196,13 @@ async function getGeminiMdFilePathsInternal(
     }
   }
 
+  // Add extension context file paths
+  for (const extensionPath of extensionContextFilePaths) {
+    if (!paths.includes(extensionPath)) {
+      paths.push(extensionPath);
+    }
+  }
+
   if (debugMode)
     logger.debug(
       `Final ordered ${getCurrentGeminiMdFilename()} paths to read: ${JSON.stringify(paths)}`,
@@ -258,6 +266,7 @@ function concatenateInstructions(
 export async function loadServerHierarchicalMemory(
   currentWorkingDirectory: string,
   debugMode: boolean,
+  extensionContextFilePaths: string[] = [],
 ): Promise<{ memoryContent: string; fileCount: number }> {
   if (debugMode)
     logger.debug(
@@ -270,6 +279,7 @@ export async function loadServerHierarchicalMemory(
     currentWorkingDirectory,
     userHomePath,
     debugMode,
+    extensionContextFilePaths,
   );
   if (filePaths.length === 0) {
     if (debugMode) logger.debug('No GEMINI.md files found in hierarchy.');