diff --git a/frontend/src/components/tools/shared/ToolStep.tsx b/frontend/src/components/tools/shared/ToolStep.tsx
index 806ad2e4f..053392c2a 100644
--- a/frontend/src/components/tools/shared/ToolStep.tsx
+++ b/frontend/src/components/tools/shared/ToolStep.tsx
@@ -17,10 +17,8 @@ export interface ToolStepProps {
   title: string;
   isVisible?: boolean;
   isCollapsed?: boolean;
-  isCompleted?: boolean;
   onCollapsedClick?: () => void;
   children?: React.ReactNode;
-  completedMessage?: string;
   helpText?: string;
   showNumber?: boolean;
   _stepNumber?: number; // Internal prop set by ToolStepContainer
@@ -70,10 +68,8 @@ const ToolStep = ({
   title,
   isVisible = true,
   isCollapsed = false,
-  isCompleted = false,
   onCollapsedClick,
   children,
-  completedMessage,
   helpText,
   showNumber,
   _stepNumber,
@@ -135,20 +131,7 @@ const ToolStep = ({
         )}
       </Flex>
 
-      {isCollapsed ? (
-        <div>
-          {isCompleted && completedMessage && (
-            <Text size="sm" c="green">
-              ✓ {completedMessage}
-              {onCollapsedClick && (
-                <Text span c="dimmed" size="xs" ml="sm">
-                  (click to change)
-                </Text>
-              )}
-            </Text>
-          )}
-        </div>
-      ) : (
+      {!isCollapsed && (
         <Stack gap="md" pl="md">
           {helpText && (
             <Text size="sm" c="dimmed">
diff --git a/frontend/src/components/tools/shared/createFilesToolStep.tsx b/frontend/src/components/tools/shared/createFilesToolStep.tsx
index 31b977461..89c746c6f 100644
--- a/frontend/src/components/tools/shared/createFilesToolStep.tsx
+++ b/frontend/src/components/tools/shared/createFilesToolStep.tsx
@@ -19,9 +19,7 @@ export function createFilesToolStep(
   return createStep("Files", {
     isVisible: true,
     isCollapsed: props.isCollapsed,
-    isCompleted: hasFiles,
-    onCollapsedClick: props.onCollapsedClick,
-    completedMessage: undefined
+    onCollapsedClick: props.onCollapsedClick
   }, (
     <FileStatusIndicator
       selectedFiles={props.selectedFiles}
diff --git a/frontend/src/components/tools/shared/createToolFlow.tsx b/frontend/src/components/tools/shared/createToolFlow.tsx
index 4622e4334..21f3649c5 100644
--- a/frontend/src/components/tools/shared/createToolFlow.tsx
+++ b/frontend/src/components/tools/shared/createToolFlow.tsx
@@ -15,9 +15,7 @@ export interface MiddleStepConfig {
   title: string;
   isVisible?: boolean;
   isCollapsed?: boolean;
-  isCompleted?: boolean;
   onCollapsedClick?: () => void;
-  completedMessage?: string;
   content: React.ReactNode;
   tooltip?: {
     content?: React.ReactNode;
@@ -75,9 +73,7 @@ export function createToolFlow(config: ToolFlowConfig) {
         steps.create(stepConfig.title, {
           isVisible: stepConfig.isVisible,
           isCollapsed: stepConfig.isCollapsed,
-          isCompleted: stepConfig.isCompleted,
           onCollapsedClick: stepConfig.onCollapsedClick,
-          completedMessage: stepConfig.completedMessage,
           tooltip: stepConfig.tooltip
         }, stepConfig.content)
       )}
diff --git a/frontend/src/hooks/tools/ocr/useOCROperation.ts b/frontend/src/hooks/tools/ocr/useOCROperation.ts
index eeebb8747..30294d8ce 100644
--- a/frontend/src/hooks/tools/ocr/useOCROperation.ts
+++ b/frontend/src/hooks/tools/ocr/useOCROperation.ts
@@ -37,7 +37,7 @@ function stripExt(name: string): string {
   return i > 0 ? name.slice(0, i) : name;
 }
 
-// Signature must be (file, params)
+// Signature must be (file, params) to match useToolApiCalls interface
 const buildFormData = (file: File, parameters: OCRParameters): FormData => {
   const formData = new FormData();
   formData.append('fileInput', file);
@@ -99,7 +99,7 @@ export const useOCROperation = () => {
   const ocrConfig: ToolOperationConfig<OCRParameters> = {
     operationType: 'ocr',
     endpoint: '/api/v1/misc/ocr-pdf',
-    buildFormData: buildFormData as any /* FIX ME */,
+    buildFormData,
     filePrefix: 'ocr_',
     multiFileEndpoint: false, // Process files individually
     responseHandler, // use shared flow
diff --git a/frontend/src/hooks/tools/shared/useToolOperation.ts b/frontend/src/hooks/tools/shared/useToolOperation.ts
index 9fa883490..b10aa069d 100644
--- a/frontend/src/hooks/tools/shared/useToolOperation.ts
+++ b/frontend/src/hooks/tools/shared/useToolOperation.ts
@@ -170,7 +170,7 @@ export const useToolOperation = <TParams = void>(
           // Individual file processing - separate API call per file
           const apiCallsConfig: ApiCallsConfig<TParams> = {
             endpoint: config.endpoint,
-            buildFormData: (file: File, params: TParams) => (config.buildFormData as (params: TParams, file: File) => FormData /* FIX ME */)(params, file),
+            buildFormData: config.buildFormData as (file: File, params: TParams) => FormData,
             filePrefix: config.filePrefix,
             responseHandler: config.responseHandler
           };
diff --git a/frontend/src/tools/Compress.tsx b/frontend/src/tools/Compress.tsx
index 5c323e3c5..19253b1eb 100644
--- a/frontend/src/tools/Compress.tsx
+++ b/frontend/src/tools/Compress.tsx
@@ -74,9 +74,7 @@ const Compress = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
         steps: [{
           title: "Settings",
           isCollapsed: settingsCollapsed,
-          isCompleted: hasResults,
           onCollapsedClick: settingsCollapsed ? handleSettingsReset : undefined,
-          completedMessage: t("compress.header", "Compression completed"),
           tooltip: compressTips,
           content: (
             <CompressSettings
diff --git a/frontend/src/tools/Convert.tsx b/frontend/src/tools/Convert.tsx
index 75e8932db..669643566 100644
--- a/frontend/src/tools/Convert.tsx
+++ b/frontend/src/tools/Convert.tsx
@@ -112,7 +112,6 @@ const Convert = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
           steps: [{
             title: t("convert.settings", "Settings"),
             isCollapsed: settingsCollapsed,
-            isCompleted: settingsCollapsed,
             onCollapsedClick: settingsCollapsed ? handleSettingsReset : undefined,
             content: (
               <ConvertSettings
diff --git a/frontend/src/tools/OCR.tsx b/frontend/src/tools/OCR.tsx
index 4bb482fd0..2cdd20587 100644
--- a/frontend/src/tools/OCR.tsx
+++ b/frontend/src/tools/OCR.tsx
@@ -94,7 +94,6 @@ const OCR = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
           {
             title: "Settings",
             isCollapsed: !hasFiles || settingsCollapsed,
-            isCompleted: hasFiles && hasValidSettings,
             onCollapsedClick: hasResults ? handleSettingsReset : () => {
               if (!hasFiles) return; // Only allow if files are selected
               setExpandedStep(expandedStep === 'settings' ? null : 'settings');
@@ -111,7 +110,6 @@ const OCR = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
           {
             title: "Advanced",
             isCollapsed: expandedStep !== 'advanced',
-            isCompleted: hasFiles && hasResults,
             onCollapsedClick: hasResults ? handleSettingsReset : () => {
               if (!hasFiles) return; // Only allow if files are selected
               setExpandedStep(expandedStep === 'advanced' ? null : 'advanced');
diff --git a/frontend/src/tools/Split.tsx b/frontend/src/tools/Split.tsx
index 851b65cc3..e441ce83d 100644
--- a/frontend/src/tools/Split.tsx
+++ b/frontend/src/tools/Split.tsx
@@ -74,7 +74,6 @@ const Split = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
         steps: [{
           title: "Settings",
           isCollapsed: settingsCollapsed,
-          isCompleted: hasResults,
           onCollapsedClick: hasResults ? handleSettingsReset : undefined,
           content: (
             <SplitSettings
diff --git a/frontend/src/types/tool.ts b/frontend/src/types/tool.ts
index 9a2710400..9bca12e7a 100644
--- a/frontend/src/types/tool.ts
+++ b/frontend/src/types/tool.ts
@@ -15,9 +15,7 @@ export interface ToolStepConfig {
   type: ToolStepType;
   title: string;
   isVisible: boolean;
-  isCompleted: boolean;
   isCollapsed?: boolean;
-  completedMessage?: string;
   onCollapsedClick?: () => void;
 }