diff --git a/packages/core/src/utils/editHelper.ts b/packages/core/src/utils/editHelper.ts
index 797655a2f2a..1fcef1da22a 100644
--- a/packages/core/src/utils/editHelper.ts
+++ b/packages/core/src/utils/editHelper.ts
@@ -404,7 +404,6 @@ const SNIPPET_MAX_LINES = 1000;
  *
  * @param oldContent The original file content before the edit (null for new files)
  * @param newContent The new file content after the edit
- * @param contextLines Number of context lines to show before and after the change
  * @returns Snippet information, or null if no meaningful snippet can be extracted
  */
 export function extractEditSnippet(
diff --git a/packages/core/src/utils/getFolderStructure.ts b/packages/core/src/utils/getFolderStructure.ts
index 3b40f198445..2c4bb2afc43 100644
--- a/packages/core/src/utils/getFolderStructure.ts
+++ b/packages/core/src/utils/getFolderStructure.ts
@@ -218,10 +218,11 @@ async function readFullStructure(
 }
 
 /**
- * Reads the directory structure using BFS, respecting maxItems.
+ * Formats a folder structure tree node into indented text lines.
  * @param node The current node in the reduced structure.
- * @param indent The current indentation string.
- * @param isLast Sibling indicator.
+ * @param currentIndent The current indentation string.
+ * @param isLastChildOfParent Sibling indicator.
+ * @param isProcessingRootNode Whether this is the root node of the structure.
  * @param builder Array to build the string lines.
  */
 function formatStructure(
diff --git a/packages/core/src/utils/secure-browser-launcher.ts b/packages/core/src/utils/secure-browser-launcher.ts
index 3100db8bc56..db3ecaffd1a 100644
--- a/packages/core/src/utils/secure-browser-launcher.ts
+++ b/packages/core/src/utils/secure-browser-launcher.ts
@@ -80,7 +80,7 @@ function validateUrl(
  * and resolves successfully to prevent application crashes.
  *
  * @param url - The URL to open.
- * @param options.allowFile - Allow file:// URLs for locally generated reports.
+ * @param browserOptions.allowFile - Allow file:// URLs for locally generated reports.
  * @returns A promise that resolves when the attempt is made (whether successful or logged).
  */
 export async function openBrowserSecurely(
diff --git a/packages/core/src/utils/subagentGenerator.ts b/packages/core/src/utils/subagentGenerator.ts
index ba3b1b13ccd..61628a08572 100644
--- a/packages/core/src/utils/subagentGenerator.ts
+++ b/packages/core/src/utils/subagentGenerator.ts
@@ -109,7 +109,7 @@ export interface SubagentGeneratedContent {
  * Generates subagent configuration content using LLM.
  *
  * @param userDescription - The user's description of what the subagent should do
- * @param geminiClient - Initialized GeminiClient instance
+ * @param config - Initialized Config instance
  * @param abortSignal - AbortSignal for cancelling the request
  * @returns Promise resolving to generated subagent content
  */
diff --git a/packages/vscode-ide-companion/src/services/qwenConnectionHandler.ts b/packages/vscode-ide-companion/src/services/qwenConnectionHandler.ts
index 4f30702665e..2a12623fab8 100644
--- a/packages/vscode-ide-companion/src/services/qwenConnectionHandler.ts
+++ b/packages/vscode-ide-companion/src/services/qwenConnectionHandler.ts
@@ -47,7 +47,8 @@ export class QwenConnectionHandler {
    *
    * @param connection - ACP connection instance
    * @param workingDir - Working directory
-   * @param cliPath - CLI path (optional, if provided will override the path in configuration)
+   * @param cliEntryPath - CLI entry path (if provided will override the path in configuration)
+   * @param options - Optional connection settings
    */
   async connect(
     connection: AcpConnection,
diff --git a/packages/vscode-ide-companion/src/services/qwenSessionManager.ts b/packages/vscode-ide-companion/src/services/qwenSessionManager.ts
index 5f4dd685ff0..3347d44e183 100644
--- a/packages/vscode-ide-companion/src/services/qwenSessionManager.ts
+++ b/packages/vscode-ide-companion/src/services/qwenSessionManager.ts
@@ -44,9 +44,9 @@ export class QwenSessionManager {
   }
 
   /**
-   * Load a saved session by name
+   * Load a saved session by ID
    *
-   * @param sessionName - Name/tag of the session to load
+   * @param sessionId - ID of the session to load
    * @param workingDir - Current working directory
    * @returns Loaded session or null if not found
    */