diff --git a/src/claude/index.ts b/src/claude/index.ts
index 9662f6b..83be70e 100644
--- a/src/claude/index.ts
+++ b/src/claude/index.ts
@@ -35,6 +35,7 @@ export type {
   InitEventData,
   ToolUseEventData,
   ToolResultEventData,
+  ToolOutputEventData,
   TextEventData,
   ThinkingEventData,
   ResultEventData,
diff --git a/src/claude/process.ts b/src/claude/process.ts
index 866b1a1..a62bbbe 100644
--- a/src/claude/process.ts
+++ b/src/claude/process.ts
@@ -31,6 +31,7 @@ export type {
   InitEventData,
   ToolUseEventData,
   ToolResultEventData,
+  ToolOutputEventData,
   TextEventData,
   ThinkingEventData,
   ResultEventData,
diff --git a/src/claude/types.ts b/src/claude/types.ts
index d042c8e..aba4094 100644
--- a/src/claude/types.ts
+++ b/src/claude/types.ts
@@ -27,6 +27,11 @@ export interface ToolResultEventData {
   isError: boolean;
 }
 
+export interface ToolOutputEventData {
+  tool: string;
+  output: string;
+}
+
 export interface TextEventData {
   text: string;
 }
@@ -51,6 +56,7 @@ export type StreamEvent =
   | { type: 'init'; data: InitEventData }
   | { type: 'tool_use'; data: ToolUseEventData }
   | { type: 'tool_result'; data: ToolResultEventData }
+  | { type: 'tool_output'; data: ToolOutputEventData }
   | { type: 'text'; data: TextEventData }
   | { type: 'thinking'; data: ThinkingEventData }
   | { type: 'result'; data: ResultEventData }
diff --git a/src/codex/client.ts b/src/codex/client.ts
index c9af246..d54d225 100644
--- a/src/codex/client.ts
+++ b/src/codex/client.ts
@@ -31,43 +31,6 @@ function extractThreadId(value: unknown): string | undefined {
   return typeof id === 'string' ? id : undefined;
 }
 
-function normalizeCodexResult(result: unknown): string {
-  if (result == null) return '';
-  if (typeof result === 'string') return result;
-  if (typeof result !== 'object') return String(result);
-
-  const record = result as Record<string, unknown>;
-  const directFields = ['output_text', 'output', 'content', 'text', 'message'];
-  for (const field of directFields) {
-    const value = record[field];
-    if (typeof value === 'string') {
-      return value;
-    }
-  }
-
-  if (Array.isArray(record.output)) {
-    const first = record.output[0];
-    if (typeof first === 'string') return first;
-    if (first && typeof first === 'object') {
-      const text = (first as Record<string, unknown>).text;
-      if (typeof text === 'string') return text;
-    }
-  }
-
-  if (Array.isArray(record.choices)) {
-    const firstChoice = record.choices[0] as Record<string, unknown> | undefined;
-    const message = firstChoice?.message as Record<string, unknown> | undefined;
-    const content = message?.content;
-    if (typeof content === 'string') return content;
-  }
-
-  try {
-    return JSON.stringify(result, null, 2);
-  } catch {
-    return String(result);
-  }
-}
-
 function emitInit(
   onStream: StreamCallback | undefined,
   model: string | undefined,
@@ -88,6 +51,39 @@ function emitText(onStream: StreamCallback | undefined, text: string): void {
   onStream({ type: 'text', data: { text } });
 }
 
+function emitThinking(onStream: StreamCallback | undefined, thinking: string): void {
+  if (!onStream || !thinking) return;
+  onStream({ type: 'thinking', data: { thinking } });
+}
+
+function emitToolUse(
+  onStream: StreamCallback | undefined,
+  tool: string,
+  input: Record<string, unknown>,
+  id: string
+): void {
+  if (!onStream) return;
+  onStream({ type: 'tool_use', data: { tool, input, id } });
+}
+
+function emitToolResult(
+  onStream: StreamCallback | undefined,
+  content: string,
+  isError: boolean
+): void {
+  if (!onStream) return;
+  onStream({ type: 'tool_result', data: { content, isError } });
+}
+
+function emitToolOutput(
+  onStream: StreamCallback | undefined,
+  tool: string,
+  output: string
+): void {
+  if (!onStream || !output) return;
+  onStream({ type: 'tool_output', data: { tool, output } });
+}
+
 function emitResult(
   onStream: StreamCallback | undefined,
   success: boolean,
@@ -109,6 +105,237 @@ function determineStatus(content: string, patterns: Record<string, string>): Sta
   return detectStatus(content, patterns);
 }
 
+type CodexEvent = {
+  type: string;
+  [key: string]: unknown;
+};
+
+type CodexItem = {
+  id?: string;
+  type: string;
+  [key: string]: unknown;
+};
+
+function formatFileChangeSummary(changes: Array<{ path?: string; kind?: string }>): string {
+  if (!changes.length) return '';
+  return changes
+    .map((change) => {
+      const kind = change.kind ? `${change.kind}: ` : '';
+      return `${kind}${change.path ?? ''}`.trim();
+    })
+    .filter(Boolean)
+    .join('\n');
+}
+
+function emitCodexItemStart(
+  item: CodexItem,
+  onStream: StreamCallback | undefined,
+  startedItems: Set<string>
+): void {
+  if (!onStream) return;
+  const id = item.id || `item_${Math.random().toString(36).slice(2, 10)}`;
+  if (startedItems.has(id)) return;
+
+  switch (item.type) {
+    case 'command_execution': {
+      const command = typeof item.command === 'string' ? item.command : '';
+      emitToolUse(onStream, 'Bash', { command }, id);
+      startedItems.add(id);
+      break;
+    }
+    case 'mcp_tool_call': {
+      const tool = typeof item.tool === 'string' ? item.tool : 'Tool';
+      const args = (item.arguments ?? {}) as Record<string, unknown>;
+      emitToolUse(onStream, tool, args, id);
+      startedItems.add(id);
+      break;
+    }
+    case 'web_search': {
+      const query = typeof item.query === 'string' ? item.query : '';
+      emitToolUse(onStream, 'WebSearch', { query }, id);
+      startedItems.add(id);
+      break;
+    }
+    case 'file_change': {
+      const changes = Array.isArray(item.changes) ? item.changes : [];
+      const summary = formatFileChangeSummary(changes as Array<{ path?: string; kind?: string }>);
+      emitToolUse(onStream, 'Edit', { file_path: summary || 'patch' }, id);
+      startedItems.add(id);
+      break;
+    }
+    default:
+      break;
+  }
+}
+
+function emitCodexItemCompleted(
+  item: CodexItem,
+  onStream: StreamCallback | undefined,
+  startedItems: Set<string>,
+  outputOffsets: Map<string, number>,
+  textOffsets: Map<string, number>,
+  thinkingOffsets: Map<string, number>
+): void {
+  if (!onStream) return;
+  const id = item.id || `item_${Math.random().toString(36).slice(2, 10)}`;
+
+  switch (item.type) {
+    case 'reasoning': {
+      const text = typeof item.text === 'string' ? item.text : '';
+      if (text) {
+        const prev = thinkingOffsets.get(id) ?? 0;
+        if (text.length > prev) {
+          emitThinking(onStream, text.slice(prev) + '\n');
+          thinkingOffsets.set(id, text.length);
+        }
+      }
+      break;
+    }
+    case 'agent_message': {
+      const text = typeof item.text === 'string' ? item.text : '';
+      if (text) {
+        const prev = textOffsets.get(id) ?? 0;
+        if (text.length > prev) {
+          emitText(onStream, text.slice(prev));
+          textOffsets.set(id, text.length);
+        }
+      }
+      break;
+    }
+    case 'command_execution': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      const output = typeof item.aggregated_output === 'string' ? item.aggregated_output : '';
+      if (output) {
+        const prev = outputOffsets.get(id) ?? 0;
+        if (output.length > prev) {
+          emitToolOutput(onStream, 'Bash', output.slice(prev));
+          outputOffsets.set(id, output.length);
+        }
+      }
+      const exitCode = typeof item.exit_code === 'number' ? item.exit_code : undefined;
+      const status = typeof item.status === 'string' ? item.status : '';
+      const isError = status === 'failed' || (exitCode !== undefined && exitCode !== 0);
+      const content = output || (exitCode !== undefined ? `Exit code: ${exitCode}` : '');
+      emitToolResult(onStream, content, isError);
+      break;
+    }
+    case 'mcp_tool_call': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      const status = typeof item.status === 'string' ? item.status : '';
+      const isError = status === 'failed' || !!item.error;
+      const errorMessage =
+        item.error && typeof item.error === 'object' && 'message' in item.error
+          ? String((item.error as { message?: unknown }).message ?? '')
+          : '';
+      let content = errorMessage;
+      if (!content && item.result && typeof item.result === 'object') {
+        try {
+          content = JSON.stringify(item.result);
+        } catch {
+          content = '';
+        }
+      }
+      emitToolResult(onStream, content, isError);
+      break;
+    }
+    case 'web_search': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      emitToolResult(onStream, 'Search completed', false);
+      break;
+    }
+    case 'file_change': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      const status = typeof item.status === 'string' ? item.status : '';
+      const isError = status === 'failed';
+      const changes = Array.isArray(item.changes) ? item.changes : [];
+      const summary = formatFileChangeSummary(changes as Array<{ path?: string; kind?: string }>);
+      emitToolResult(onStream, summary || 'Applied patch', isError);
+      break;
+    }
+    default:
+      break;
+  }
+}
+
+function emitCodexItemUpdate(
+  item: CodexItem,
+  onStream: StreamCallback | undefined,
+  startedItems: Set<string>,
+  outputOffsets: Map<string, number>,
+  textOffsets: Map<string, number>,
+  thinkingOffsets: Map<string, number>
+): void {
+  if (!onStream) return;
+  const id = item.id || `item_${Math.random().toString(36).slice(2, 10)}`;
+
+  switch (item.type) {
+    case 'command_execution': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      const output = typeof item.aggregated_output === 'string' ? item.aggregated_output : '';
+      if (output) {
+        const prev = outputOffsets.get(id) ?? 0;
+        if (output.length > prev) {
+          emitToolOutput(onStream, 'Bash', output.slice(prev));
+          outputOffsets.set(id, output.length);
+        }
+      }
+      break;
+    }
+    case 'agent_message': {
+      const text = typeof item.text === 'string' ? item.text : '';
+      if (text) {
+        const prev = textOffsets.get(id) ?? 0;
+        if (text.length > prev) {
+          emitText(onStream, text.slice(prev));
+          textOffsets.set(id, text.length);
+        }
+      }
+      break;
+    }
+    case 'reasoning': {
+      const text = typeof item.text === 'string' ? item.text : '';
+      if (text) {
+        const prev = thinkingOffsets.get(id) ?? 0;
+        if (text.length > prev) {
+          emitThinking(onStream, text.slice(prev));
+          thinkingOffsets.set(id, text.length);
+        }
+      }
+      break;
+    }
+    case 'file_change': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      break;
+    }
+    case 'mcp_tool_call': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      break;
+    }
+    case 'web_search': {
+      if (!startedItems.has(id)) {
+        emitCodexItemStart(item, onStream, startedItems);
+      }
+      break;
+    }
+    default:
+      break;
+  }
+}
+
 /**
  * Call Codex with an agent prompt.
  */
@@ -118,17 +345,19 @@ export async function callCodex(
   options: CodexCallOptions
 ): Promise<AgentResponse> {
   const codex = new Codex();
+  const threadOptions = {
+    model: options.model,
+    workingDirectory: options.cwd,
+  };
   const thread = options.sessionId
-    ? await codex.resumeThread(options.sessionId)
-    : await codex.startThread();
-  const threadId = extractThreadId(thread) || options.sessionId;
+    ? await codex.resumeThread(options.sessionId, threadOptions)
+    : await codex.startThread(threadOptions);
+  let threadId = extractThreadId(thread) || options.sessionId;
 
   const fullPrompt = options.systemPrompt
     ? `${options.systemPrompt}\n\n${prompt}`
     : prompt;
 
-  emitInit(options.onStream, options.model, threadId);
-
   try {
     log.debug('Executing Codex thread', {
       agentType,
@@ -136,21 +365,93 @@ export async function callCodex(
       hasSystemPrompt: !!options.systemPrompt,
     });
 
-    const runOptions = options.model ? { model: options.model } : undefined;
-    const result = await (thread as { run: (p: string, o?: unknown) => Promise<unknown> })
-      .run(fullPrompt, runOptions);
+    const { events } = await thread.runStreamed(fullPrompt);
+    let content = '';
+    let success = true;
+    let failureMessage = '';
+    const startedItems = new Set<string>();
+    const outputOffsets = new Map<string, number>();
+    const textOffsets = new Map<string, number>();
+    const thinkingOffsets = new Map<string, number>();
 
-    const content = normalizeCodexResult(result).trim();
-    emitText(options.onStream, content);
-    emitResult(options.onStream, true, content, threadId);
+    for await (const event of events as AsyncGenerator<CodexEvent>) {
+      if (event.type === 'thread.started') {
+        threadId = typeof event.thread_id === 'string' ? event.thread_id : threadId;
+        emitInit(options.onStream, options.model, threadId);
+        continue;
+      }
+
+      if (event.type === 'turn.failed') {
+        success = false;
+        if (event.error && typeof event.error === 'object' && 'message' in event.error) {
+          failureMessage = String((event.error as { message?: unknown }).message ?? '');
+        }
+        break;
+      }
+
+      if (event.type === 'error') {
+        success = false;
+        failureMessage = typeof event.message === 'string' ? event.message : 'Unknown error';
+        break;
+      }
+
+      if (event.type === 'item.started') {
+        const item = event.item as CodexItem | undefined;
+        if (item) {
+          emitCodexItemStart(item, options.onStream, startedItems);
+        }
+        continue;
+      }
+
+      if (event.type === 'item.updated') {
+        const item = event.item as CodexItem | undefined;
+        if (item) {
+          emitCodexItemUpdate(item, options.onStream, startedItems, outputOffsets, textOffsets, thinkingOffsets);
+        }
+        continue;
+      }
+
+      if (event.type === 'item.completed') {
+        const item = event.item as CodexItem | undefined;
+        if (item) {
+          if (item.type === 'agent_message' && typeof item.text === 'string') {
+            content = item.text;
+          }
+          emitCodexItemCompleted(
+            item,
+            options.onStream,
+            startedItems,
+            outputOffsets,
+            textOffsets,
+            thinkingOffsets
+          );
+        }
+        continue;
+      }
+    }
+
+    if (!success) {
+      const message = failureMessage || 'Codex execution failed';
+      emitResult(options.onStream, false, message, threadId);
+      return {
+        agent: agentType,
+        status: 'blocked',
+        content: message,
+        timestamp: new Date(),
+        sessionId: threadId,
+      };
+    }
+
+    const trimmed = content.trim();
+    emitResult(options.onStream, true, trimmed, threadId);
 
     const patterns = options.statusPatterns || GENERIC_STATUS_PATTERNS;
-    const status = determineStatus(content, patterns);
+    const status = determineStatus(trimmed, patterns);
 
     return {
       agent: agentType,
       status,
-      content,
+      content: trimmed,
       timestamp: new Date(),
       sessionId: threadId,
     };
diff --git a/src/utils/ui.ts b/src/utils/ui.ts
index a84212b..9b7c0c1 100644
--- a/src/utils/ui.ts
+++ b/src/utils/ui.ts
@@ -151,6 +151,9 @@ export function truncate(text: string, maxLength: number): string {
 /** Stream display manager for real-time Claude output */
 export class StreamDisplay {
   private lastToolUse: string | null = null;
+  private currentToolInputPreview: string | null = null;
+  private toolOutputBuffer = '';
+  private toolOutputPrinted = false;
   private textBuffer = '';
   private thinkingBuffer = '';
   private isFirstText = true;
@@ -206,6 +209,31 @@ export class StreamDisplay {
     // Start spinner to show tool is executing
     this.startToolSpinner(tool, inputPreview);
     this.lastToolUse = tool;
+    this.currentToolInputPreview = inputPreview;
+    this.toolOutputBuffer = '';
+    this.toolOutputPrinted = false;
+  }
+
+  /** Display tool output streaming */
+  showToolOutput(output: string, tool?: string): void {
+    if (!output) return;
+    this.stopToolSpinner();
+    this.flushThinking();
+    this.flushText();
+
+    if (tool && !this.lastToolUse) {
+      this.lastToolUse = tool;
+    }
+
+    this.toolOutputBuffer += output;
+    const lines = this.toolOutputBuffer.split(/\r?\n/);
+    this.toolOutputBuffer = lines.pop() ?? '';
+
+    this.printToolOutputLines(lines, tool);
+
+    if (this.lastToolUse && this.currentToolInputPreview) {
+      this.startToolSpinner(this.lastToolUse, this.currentToolInputPreview);
+    }
   }
 
   /** Display tool result event */
@@ -213,6 +241,11 @@ export class StreamDisplay {
     // Stop the spinner first
     this.stopToolSpinner();
 
+    if (this.toolOutputBuffer) {
+      this.printToolOutputLines([this.toolOutputBuffer], this.lastToolUse ?? undefined);
+      this.toolOutputBuffer = '';
+    }
+
     const toolName = this.lastToolUse || 'Tool';
     if (isError) {
       const errorContent = content || 'Unknown error';
@@ -225,6 +258,8 @@ export class StreamDisplay {
       console.log(chalk.green(`  ✓ ${toolName}`));
     }
     this.lastToolUse = null;
+    this.currentToolInputPreview = null;
+    this.toolOutputPrinted = false;
   }
 
   /** Display streaming thinking (Claude's internal reasoning) */
@@ -308,6 +343,9 @@ export class StreamDisplay {
   reset(): void {
     this.stopToolSpinner();
     this.lastToolUse = null;
+    this.currentToolInputPreview = null;
+    this.toolOutputBuffer = '';
+    this.toolOutputPrinted = false;
     this.textBuffer = '';
     this.thinkingBuffer = '';
     this.isFirstText = true;
@@ -330,6 +368,9 @@ export class StreamDisplay {
         case 'tool_result':
           this.showToolResult(event.data.content, event.data.isError);
           break;
+        case 'tool_output':
+          this.showToolOutput(event.data.output, event.data.tool);
+          break;
         case 'text':
           this.showText(event.data.text);
           break;
@@ -372,4 +413,19 @@ export class StreamDisplay {
       }
     }
   }
+
+  private ensureToolOutputHeader(tool?: string): void {
+    if (this.toolOutputPrinted) return;
+    const label = tool || this.lastToolUse || 'Tool';
+    console.log(chalk.gray(`  ${chalk.yellow(label)} output:`));
+    this.toolOutputPrinted = true;
+  }
+
+  private printToolOutputLines(lines: string[], tool?: string): void {
+    if (lines.length === 0) return;
+    this.ensureToolOutputHeader(tool);
+    for (const line of lines) {
+      console.log(chalk.gray(`  │ ${line}`));
+    }
+  }
 }