for the most part things are looking good

packages/ai/src/steps/message-post-processing-steps/identify-assumptions-step/identify-assumptions-step.ts

@@ -190,7 +190,6 @@ No conversation history available for analysis.`,
           maxOutputTokens: 10000,
           providerOptions: {
             anthropic: {
-              disableParallelToolCalls: true,
               thinking: { type: 'enabled', budgetTokens: 16000 },
             },
           },

packages/ai/src/tools/communication-tools/done-tool/done-tool-start.ts

@@ -14,7 +14,10 @@ import {
 // Factory function that creates a type-safe callback for the specific agent context
 export function createDoneToolStart(context: DoneToolContext, doneToolState: DoneToolState) {
   return async function doneToolStart(options: ToolCallOptions): Promise<void> {
+    // Reset state for new tool call to prevent contamination from previous calls
     doneToolState.toolCallId = options.toolCallId;
+    doneToolState.args = undefined;
+    doneToolState.finalResponse = undefined;
 
     // Extract files from the tool call responses in messages
     if (options.messages) {

packages/ai/src/tools/communication-tools/message-user-clarifying-question/message-user-clarifying-question-start.ts

@@ -17,8 +17,10 @@ export function createMessageUserClarifyingQuestionStart(
   return async (options: ToolCallOptions) => {
     const messageId = context.messageId;
 
-    // Initialize state
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
+    state.args = '';
+    state.clarifyingQuestion = undefined;
 
     // If we have a messageId, create initial database entries
     if (messageId) {

packages/ai/src/tools/communication-tools/respond-without-asset-creation/respond-without-asset-creation-start.ts

@@ -17,7 +17,10 @@ export function createRespondWithoutAssetCreationStart(
   return async function respondWithoutAssetCreationStart(
     options: Pick<ToolCallOptions, 'toolCallId'>
   ): Promise<void> {
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
+    state.args = undefined;
+    state.final_response = undefined;
 
     const responseEntry = createRespondWithoutAssetCreationResponseMessage(
       state,

packages/ai/src/tools/database-tools/execute-sql/execute-sql-start.ts

@@ -8,12 +8,14 @@ import {
 
 export function createExecuteSqlStart(state: ExecuteSqlState, context: ExecuteSqlContext) {
   return async function executeSqlStart(options: ToolCallOptions): Promise<void> {
-    // Initialize state
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
     state.args = '';
     state.statements = [];
     state.isComplete = false;
     state.startTime = Date.now();
+    state.executionTime = undefined;
+    state.executionResults = undefined;
 
     // Create initial reasoning entry for SQL execution
     const reasoningEntry = createExecuteSqlReasoningEntry(state, options.toolCallId);

packages/ai/src/tools/planning-thinking-tools/sequential-thinking-tool/sequential-thinking-tool-start.ts

@@ -15,9 +15,13 @@ export function createSequentialThinkingStart(
   context: SequentialThinkingContext
 ) {
   return async function sequentialThinkingStart(options: ToolCallOptions): Promise<void> {
-    // Set the entry ID and start time in state
+    // Reset state for new tool call to prevent contamination from previous calls
     sequentialThinkingState.toolCallId = options.toolCallId;
     sequentialThinkingState.startTime = Date.now();
+    sequentialThinkingState.args = undefined;
+    sequentialThinkingState.thought = undefined;
+    sequentialThinkingState.nextThoughtNeeded = undefined;
+    sequentialThinkingState.thoughtNumber = undefined;
 
     // Create initial reasoning entry with loading status
     const reasoningEntry = createSequentialThinkingReasoningMessage(

packages/ai/src/tools/visualization-tools/dashboards/create-dashboards-tool/create-dashboards-start.ts

@@ -11,8 +11,10 @@ export function createDashboardsStart(
   state: CreateDashboardsState
 ) {
   return async (options: ToolCallOptions) => {
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
-    state.startTime = Date.now();
+    state.argsText = undefined;
+    state.files = [];
     state.startTime = Date.now();
 
     if (context.messageId) {

packages/ai/src/tools/visualization-tools/dashboards/modify-dashboards-tool/modify-dashboards-start.ts

@@ -11,8 +11,10 @@ export function createModifyDashboardsStart(
   state: ModifyDashboardsState
 ) {
   return async (options: ToolCallOptions) => {
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
-    state.startTime = Date.now();
+    state.argsText = undefined;
+    state.files = [];
     state.startTime = Date.now();
 
     if (context.messageId) {

packages/ai/src/tools/visualization-tools/metrics/create-metrics-tool/create-metrics-start.ts

@@ -9,6 +9,9 @@ import {
 export function createCreateMetricsStart(context: CreateMetricsContext, state: CreateMetricsState) {
   return async (options: ToolCallOptions) => {
     state.toolCallId = options.toolCallId;
+    // Reset state for new tool call to prevent contamination from previous calls
+    state.argsText = undefined;
+    state.files = [];
     state.startTime = Date.now();
 
     if (context.messageId) {

packages/ai/src/tools/visualization-tools/metrics/modify-metrics-tool/modify-metrics-start.ts

@@ -8,7 +8,10 @@ import type { ModifyMetricsContext, ModifyMetricsState } from './modify-metrics-
 
 export function createModifyMetricsStart(context: ModifyMetricsContext, state: ModifyMetricsState) {
   return async (options: ToolCallOptions) => {
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
+    state.argsText = undefined;
+    state.files = [];
     state.startTime = Date.now();
 
     if (context.messageId) {

packages/ai/src/tools/visualization-tools/reports/create-reports-tool/create-reports-start.ts

@@ -8,7 +8,10 @@ import {
 
 export function createReportsStart(context: CreateReportsContext, state: CreateReportsState) {
   return async (options: ToolCallOptions) => {
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
+    state.argsText = undefined;
+    state.files = [];
     state.startTime = Date.now();
 
     if (context.messageId) {

packages/ai/src/tools/visualization-tools/reports/modify-reports-tool/modify-reports-start.ts

@@ -8,7 +8,15 @@ import type { ModifyReportsContext, ModifyReportsState } from './modify-reports-
 
 export function modifyReportsStart(context: ModifyReportsContext, state: ModifyReportsState) {
   return async (options: ToolCallOptions) => {
+    // Reset state for new tool call to prevent contamination from previous calls
     state.toolCallId = options.toolCallId;
+    state.argsText = undefined;
+    state.reportId = undefined;
+    state.reportName = undefined;
+    state.edits = [];
+    state.currentContent = undefined;
+    state.finalContent = undefined;
+    state.version_number = undefined;
     state.startTime = Date.now();
 
     if (context.messageId) {