> ## Documentation Index
> Fetch the complete documentation index at: https://docs.replit.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Build your first app

> Build and publish your first app with Replit Agent in minutes.

export const StartButton = () => <span style={{
  display: "inline-flex",
  alignItems: "center",
  justifyContent: "center",
  width: "22px",
  height: "22px",
  borderRadius: "4px",
  background: "#0053D6",
  color: "#FFFFFF",
  verticalAlign: "middle",
  lineHeight: 1
}}>
    <svg width="12" height="12" viewBox="0 0 24 24" fill="currentColor">
      <path fillRule="evenodd" d="M11.47 4.47a.75.75 0 0 1 1.06 0l7 7a.75.75 0 1 1-1.06 1.06l-5.72-5.72V19a.75.75 0 0 1-1.5 0V6.81l-5.72 5.72a.75.75 0 0 1-1.06-1.06l7-7Z" clipRule="evenodd" />
    </svg>
  </span>;

export const AgentInput = ({defaultPrompt = "", highlightPlan = false, highlightStart = false, showTypewriter = true}) => {
  const AGENT_INPUT_TYPEWRITER_SCRIPT_ID = "replit-docs-typewriter-core";
  const AGENT_INPUT_TYPEWRITER_SRC = "https://unpkg.com/typewriter-effect@2.18.2/dist/core.js";
  const AGENT_INPUT_TYPEWRITER_PROMPTS = ["Build a project tracker for my team", "Design a landing page for my coffee shop", "Add Stripe payments to my app"];
  const AGENT_INPUT_TYPING_SPEED = 40;
  const AGENT_INPUT_DELETE_SPEED = 20;
  const AGENT_INPUT_PAUSE_AFTER = 2000;
  const AGENT_INPUT_START_DELAY = 500;
  const getAgentInputTypewriterLoader = () => {
    if (typeof window === "undefined") {
      return null;
    }
    if (!window.__replitDocsAgentInputTypewriterLoader) {
      window.__replitDocsAgentInputTypewriterLoader = {};
    }
    return window.__replitDocsAgentInputTypewriterLoader;
  };
  const ensureAgentInputTypewriterCore = () => {
    if (typeof window === "undefined" || typeof document === "undefined") {
      return Promise.resolve(null);
    }
    if (window.Typewriter) {
      return Promise.resolve(window.Typewriter);
    }
    const loader = getAgentInputTypewriterLoader();
    if (loader.promise) {
      return loader.promise;
    }
    loader.promise = new Promise((resolve, reject) => {
      const handleLoad = () => {
        if (window.Typewriter) {
          resolve(window.Typewriter);
          return;
        }
        loader.promise = null;
        reject(new Error("Typewriter core loaded without a global Typewriter export."));
      };
      const handleError = () => {
        loader.promise = null;
        reject(new Error("Failed to load typewriter core."));
      };
      const existingScript = document.getElementById(AGENT_INPUT_TYPEWRITER_SCRIPT_ID);
      if (existingScript) {
        existingScript.addEventListener("load", handleLoad, {
          once: true
        });
        existingScript.addEventListener("error", handleError, {
          once: true
        });
        return;
      }
      const script = document.createElement("script");
      script.id = AGENT_INPUT_TYPEWRITER_SCRIPT_ID;
      script.src = AGENT_INPUT_TYPEWRITER_SRC;
      script.async = true;
      script.addEventListener("load", handleLoad, {
        once: true
      });
      script.addEventListener("error", handleError, {
        once: true
      });
      document.head.appendChild(script);
    });
    return loader.promise;
  };
  const getAgentInputTypewriterRegistry = () => {
    if (typeof window === "undefined") {
      return null;
    }
    if (!window.__replitDocsAgentInputTypewriters) {
      window.__replitDocsAgentInputTypewriters = new WeakMap();
    }
    return window.__replitDocsAgentInputTypewriters;
  };
  const findAgentInputContainer = node => node?.closest?.("[data-agent-input-container]") || null;
  const getAgentInputElements = container => ({
    textarea: container?.querySelector?.('[data-agent-input-role="textarea"]') || null,
    startButton: container?.querySelector?.('[data-agent-input-role="start-button"]') || null,
    pillsContainer: container?.querySelector?.('[data-agent-input-role="pills"]') || null
  });
  const getAgentInputPromptValue = container => {
    const {textarea} = getAgentInputElements(container);
    return textarea?.value?.trim() || "";
  };
  const updateAgentInputButtonState = container => {
    const {startButton} = getAgentInputElements(container);
    if (!startButton) {
      return;
    }
    const hasText = getAgentInputPromptValue(container).length > 0;
    startButton.style.opacity = hasText ? "1" : "0.4";
    startButton.style.cursor = hasText ? "pointer" : "not-allowed";
  };
  const stopAgentInputTypewriter = (textarea, {placeholder, clearDemo = false} = {}) => {
    if (typeof window === "undefined" || !textarea) {
      return;
    }
    const registry = getAgentInputTypewriterRegistry();
    const record = registry?.get(textarea);
    if (!record) {
      if (placeholder) {
        textarea.setAttribute("placeholder", placeholder);
      }
      return;
    }
    record.stopped = true;
    if (record.startTimer) {
      window.clearTimeout(record.startTimer);
    }
    if (record.writeFrame) {
      window.cancelAnimationFrame(record.writeFrame);
    }
    if (record.typewriter?.stop) {
      record.typewriter.stop();
    }
    textarea.removeEventListener("focus", record.handleFocus);
    textarea.removeEventListener("pointerdown", record.handlePointerDown);
    textarea.removeEventListener("input", record.handleInput);
    if (clearDemo && textarea.value === record.pendingValue) {
      textarea.value = "";
    }
    textarea.setAttribute("placeholder", placeholder || "");
    updateAgentInputButtonState(record.container);
    registry.delete(textarea);
  };
  const startAgentInputTypewriter = (container, {defaultPrompt, placeholder, showTypewriter}) => {
    if (typeof window === "undefined" || typeof document === "undefined" || !container) {
      return;
    }
    const {textarea} = getAgentInputElements(container);
    if (!textarea) {
      return;
    }
    if (!showTypewriter || defaultPrompt) {
      stopAgentInputTypewriter(textarea, {
        placeholder
      });
      textarea.setAttribute("placeholder", placeholder);
      updateAgentInputButtonState(container);
      return;
    }
    const registry = getAgentInputTypewriterRegistry();
    const existingRecord = registry.get(textarea);
    if (existingRecord && !existingRecord.stopped) {
      updateAgentInputButtonState(container);
      return;
    }
    textarea.setAttribute("placeholder", "");
    if (textarea.value) {
      textarea.value = "";
    }
    updateAgentInputButtonState(container);
    const record = {
      container,
      element: textarea,
      pendingValue: "",
      renderedValue: "",
      stopped: false,
      startTimer: null,
      writeFrame: null,
      typewriter: null,
      handleFocus: null,
      handlePointerDown: null,
      handleInput: null
    };
    const queueValue = nextValue => {
      record.pendingValue = nextValue;
      if (record.writeFrame) {
        return;
      }
      record.writeFrame = window.requestAnimationFrame(() => {
        record.writeFrame = null;
        if (record.stopped || registry.get(textarea) !== record || !textarea.isConnected) {
          return;
        }
        if (textarea.value !== record.pendingValue) {
          textarea.value = record.pendingValue;
        }
        updateAgentInputButtonState(container);
      });
    };
    const stopDemo = () => {
      stopAgentInputTypewriter(textarea, {
        placeholder,
        clearDemo: true
      });
    };
    record.handleFocus = stopDemo;
    record.handlePointerDown = stopDemo;
    record.handleInput = stopDemo;
    registry.set(textarea, record);
    textarea.addEventListener("focus", record.handleFocus, {
      once: true
    });
    textarea.addEventListener("pointerdown", record.handlePointerDown, {
      once: true
    });
    textarea.addEventListener("input", record.handleInput, {
      once: true
    });
    record.startTimer = window.setTimeout(() => {
      ensureAgentInputTypewriterCore().then(Typewriter => {
        if (!Typewriter || record.stopped || registry.get(textarea) !== record || !textarea.isConnected) {
          return;
        }
        const typewriter = new Typewriter(null, {
          loop: true,
          delay: AGENT_INPUT_TYPING_SPEED,
          deleteSpeed: AGENT_INPUT_DELETE_SPEED,
          cursor: "",
          skipAddStyles: true,
          wrapperClassName: "",
          cursorClassName: "",
          onCreateTextNode: character => {
            record.renderedValue += character;
            queueValue(record.renderedValue);
            return null;
          },
          onRemoveNode: () => {
            record.renderedValue = record.renderedValue.slice(0, -1);
            queueValue(record.renderedValue);
          }
        });
        AGENT_INPUT_TYPEWRITER_PROMPTS.forEach(prompt => {
          typewriter.typeString(prompt).pauseFor(AGENT_INPUT_PAUSE_AFTER).deleteAll(AGENT_INPUT_DELETE_SPEED).pauseFor(400);
        });
        record.typewriter = typewriter;
        typewriter.start();
      }).catch(() => {
        stopAgentInputTypewriter(textarea, {
          placeholder
        });
      });
    }, AGENT_INPUT_START_DELAY);
  };
  if (typeof document !== "undefined" && !window.LZString) {
    const script = document.createElement("script");
    script.src = "https://cdnjs.cloudflare.com/ajax/libs/lz-string/1.5.0/lz-string.min.js";
    document.head.appendChild(script);
  }
  const placeholder = "Describe your idea, Replit will bring it to life...";
  const outputTypes = [{
    name: "Web",
    iconSvg: '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path fill-rule="evenodd" d="M12 1.25c5.937 0 10.75 4.813 10.75 10.75S17.937 22.75 12 22.75 1.25 17.937 1.25 12 6.063 1.25 12 1.25Zm-9.217 11.5a9.25 9.25 0 0 0 7.468 8.333 15.25 15.25 0 0 1-2.982-8.333H2.783Zm13.948 0a15.249 15.249 0 0 1-2.983 8.333 9.25 9.25 0 0 0 7.469-8.333H16.73Zm-7.958 0A13.748 13.748 0 0 0 12 20.876a13.748 13.748 0 0 0 3.227-8.126H8.773Zm1.478-9.834a9.251 9.251 0 0 0-7.468 8.334H7.27a15.251 15.251 0 0 1 2.982-8.334ZM12 3.123a13.747 13.747 0 0 0-3.227 8.127h6.454A13.748 13.748 0 0 0 12 3.123Zm1.748-.207a15.25 15.25 0 0 1 2.983 8.334h4.486a9.251 9.251 0 0 0-7.469-8.334Z" clip-rule="evenodd" /></svg>',
    icon: <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
          <path fillRule="evenodd" d="M12 1.25c5.937 0 10.75 4.813 10.75 10.75S17.937 22.75 12 22.75 1.25 17.937 1.25 12 6.063 1.25 12 1.25Zm-9.217 11.5a9.25 9.25 0 0 0 7.468 8.333 15.25 15.25 0 0 1-2.982-8.333H2.783Zm13.948 0a15.249 15.249 0 0 1-2.983 8.333 9.25 9.25 0 0 0 7.469-8.333H16.73Zm-7.958 0A13.748 13.748 0 0 0 12 20.876a13.748 13.748 0 0 0 3.227-8.126H8.773Zm1.478-9.834a9.251 9.251 0 0 0-7.468 8.334H7.27a15.251 15.251 0 0 1 2.982-8.334ZM12 3.123a13.747 13.747 0 0 0-3.227 8.127h6.454A13.748 13.748 0 0 0 12 3.123Zm1.748-.207a15.25 15.25 0 0 1 2.983 8.334h4.486a9.251 9.251 0 0 0-7.469-8.334Z" clipRule="evenodd" />
        </svg>
  }, {
    name: "Mobile",
    iconSvg: '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path fill-rule="evenodd" d="M7 2.75c-.69 0-1.25.56-1.25 1.25v16c0 .69.56 1.25 1.25 1.25h10c.69 0 1.25-.56 1.25-1.25V4c0-.69-.56-1.25-1.25-1.25H7ZM4.25 4A2.75 2.75 0 0 1 7 1.25h10A2.75 2.75 0 0 1 19.75 4v16A2.75 2.75 0 0 1 17 22.75H7A2.75 2.75 0 0 1 4.25 20V4Zm7 14a.75.75 0 0 1 .75-.75h.01a.75.75 0 0 1 0 1.5H12a.75.75 0 0 1-.75-.75Z" clip-rule="evenodd" /></svg>',
    icon: <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
          <path fillRule="evenodd" d="M7 2.75c-.69 0-1.25.56-1.25 1.25v16c0 .69.56 1.25 1.25 1.25h10c.69 0 1.25-.56 1.25-1.25V4c0-.69-.56-1.25-1.25-1.25H7ZM4.25 4A2.75 2.75 0 0 1 7 1.25h10A2.75 2.75 0 0 1 19.75 4v16A2.75 2.75 0 0 1 17 22.75H7A2.75 2.75 0 0 1 4.25 20V4Zm7 14a.75.75 0 0 1 .75-.75h.01a.75.75 0 0 1 0 1.5H12a.75.75 0 0 1-.75-.75Z" clipRule="evenodd" />
        </svg>
  }, {
    name: "Slides",
    iconSvg: '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path fill-rule="evenodd" d="M20 2.25A2.75 2.75 0 0 1 22.75 5v14A2.75 2.75 0 0 1 20 21.75h-8A2.75 2.75 0 0 1 9.25 19V5A2.75 2.75 0 0 1 12 2.25h8Zm-8 1.5c-.69 0-1.25.56-1.25 1.25v14c0 .69.56 1.25 1.25 1.25h8c.69 0 1.25-.56 1.25-1.25V5c0-.69-.56-1.25-1.25-1.25h-8Z" clip-rule="evenodd" /><path d="M6 4.25a.75.75 0 0 1 .75.75v14a.75.75 0 0 1-1.5 0V5A.75.75 0 0 1 6 4.25ZM2 6.25a.75.75 0 0 1 .75.75v10a.75.75 0 0 1-1.5 0V7A.75.75 0 0 1 2 6.25Z" /></svg>',
    icon: <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
          <path fillRule="evenodd" d="M20 2.25A2.75 2.75 0 0 1 22.75 5v14A2.75 2.75 0 0 1 20 21.75h-8A2.75 2.75 0 0 1 9.25 19V5A2.75 2.75 0 0 1 12 2.25h8Zm-8 1.5c-.69 0-1.25.56-1.25 1.25v14c0 .69.56 1.25 1.25 1.25h8c.69 0 1.25-.56 1.25-1.25V5c0-.69-.56-1.25-1.25-1.25h-8Z" clipRule="evenodd" />
          <path d="M6 4.25a.75.75 0 0 1 .75.75v14a.75.75 0 0 1-1.5 0V5A.75.75 0 0 1 6 4.25ZM2 6.25a.75.75 0 0 1 .75.75v10a.75.75 0 0 1-1.5 0V7A.75.75 0 0 1 2 6.25Z" />
        </svg>
  }, {
    name: "Animation",
    iconSvg: '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path fill-rule="evenodd" d="M10.024 7.25c.31.004.613.091.878.251l4.996 2.996a1.752 1.752 0 0 1 .625 2.367 1.75 1.75 0 0 1-.625.639v-.001l-4.995 2.995.001.001a1.75 1.75 0 0 1-2.654-1.505v-5.99a1.75 1.75 0 0 1 1.774-1.753Zm-.02 1.5a.252.252 0 0 0-.22.124.253.253 0 0 0-.034.127v5.998a.252.252 0 0 0 .127.219.253.253 0 0 0 .252-.004l.002-.001 4.997-2.997.002-.001a.252.252 0 0 0 .122-.215.25.25 0 0 0-.122-.215h-.002L10.13 8.786h-.002a.25.25 0 0 0-.125-.037Z" clip-rule="evenodd" /><path fill-rule="evenodd" d="M12 1.25c5.937 0 10.75 4.813 10.75 10.75S17.937 22.75 12 22.75 1.25 17.937 1.25 12 6.063 1.25 12 1.25Zm0 1.5a9.25 9.25 0 1 0 0 18.5 9.25 9.25 0 0 0 0-18.5Z" clip-rule="evenodd" /></svg>',
    icon: <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
          <path fillRule="evenodd" d="M10.024 7.25c.31.004.613.091.878.251l4.996 2.996a1.752 1.752 0 0 1 .625 2.367 1.75 1.75 0 0 1-.625.639v-.001l-4.995 2.995.001.001a1.75 1.75 0 0 1-2.654-1.505v-5.99a1.75 1.75 0 0 1 1.774-1.753Zm-.02 1.5a.252.252 0 0 0-.22.124.253.253 0 0 0-.034.127v5.998a.252.252 0 0 0 .127.219.253.253 0 0 0 .252-.004l.002-.001 4.997-2.997.002-.001a.252.252 0 0 0 .122-.215.25.25 0 0 0-.122-.215h-.002L10.13 8.786h-.002a.25.25 0 0 0-.125-.037Z" clipRule="evenodd" />
          <path fillRule="evenodd" d="M12 1.25c5.937 0 10.75 4.813 10.75 10.75S17.937 22.75 12 22.75 1.25 17.937 1.25 12 6.063 1.25 12 1.25Zm0 1.5a9.25 9.25 0 1 0 0 18.5 9.25 9.25 0 0 0 0-18.5Z" clipRule="evenodd" />
        </svg>
  }, {
    name: "Design",
    iconSvg: '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path d="M6.5 11.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5ZM17.5 9.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5ZM8.5 6.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5ZM13.5 5.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5Z" /><path fill-rule="evenodd" d="M12 1.25c2.827 0 5.553 1.01 7.573 2.828C21.596 5.9 22.75 8.388 22.75 11A5.749 5.749 0 0 1 17 16.75h-2.25a1 1 0 0 0-.8 1.6l.3.4.1.143a2.5 2.5 0 0 1-2.1 3.857H12a10.75 10.75 0 1 1 0-21.5Zm0 1.5a9.25 9.25 0 1 0 0 18.5h.25a1 1 0 0 0 .8-1.6l-.3-.4a2.5 2.5 0 0 1 2-4H17l.21-.005A4.25 4.25 0 0 0 21.25 11c0-2.161-.953-4.252-2.68-5.807C16.84 3.636 14.476 2.75 12 2.75Z" clip-rule="evenodd" /></svg>',
    icon: <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
          <path d="M6.5 11.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5ZM17.5 9.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5ZM8.5 6.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5ZM13.5 5.25a1.25 1.25 0 1 1 0 2.5 1.25 1.25 0 0 1 0-2.5Z" />
          <path fillRule="evenodd" d="M12 1.25c2.827 0 5.553 1.01 7.573 2.828C21.596 5.9 22.75 8.388 22.75 11A5.749 5.749 0 0 1 17 16.75h-2.25a1 1 0 0 0-.8 1.6l.3.4.1.143a2.5 2.5 0 0 1-2.1 3.857H12a10.75 10.75 0 1 1 0-21.5Zm0 1.5a9.25 9.25 0 1 0 0 18.5h.25a1 1 0 0 0 .8-1.6l-.3-.4a2.5 2.5 0 0 1 2-4H17l.21-.005A4.25 4.25 0 0 0 21.25 11c0-2.161-.953-4.252-2.68-5.807C16.84 3.636 14.476 2.75 12 2.75Z" clipRule="evenodd" />
        </svg>
  }];
  const checkSvg = '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path fill-rule="evenodd" d="M20.53 5.47a.75.75 0 0 1 0 1.06l-11 11a.75.75 0 0 1-1.06 0l-5-5a.75.75 0 1 1 1.06-1.06L9 15.94 19.47 5.47a.75.75 0 0 1 1.06 0Z" clip-rule="evenodd" /></svg>';
  if (typeof document !== "undefined" && !document.getElementById("agent-input-styles")) {
    const style = document.createElement("style");
    style.id = "agent-input-styles";
    style.textContent = `
      /* Theme variables - light mode */
      [data-agent-input-container] {
        --ai-surface-bg: var(--replit-docs-bg, #F6F6F4);
        --ai-surface-higher: var(--replit-docs-bg-elevated, #F1F1EE);
        --ai-border-default: var(--replit-docs-border, #DEDAD5);
        --ai-border-strong: var(--replit-docs-border-strong, #CAC4BE);
        --ai-text-secondary: var(--replit-docs-text-muted, #5C5C5C);
        --ai-text-tertiary: var(--replit-docs-text-subtle, #858585);
        --ai-text-primary: var(--replit-docs-text, #1D1D1D);
        --ai-button-bg: var(--replit-docs-bg-muted, #F1F1EE);
        --ai-button-bg-hover: var(--replit-docs-bg-elevated, #F1F1EE);
        --ai-icon-default: var(--replit-docs-text-subtle, #858585);
        --ai-icon-hover: var(--replit-docs-text-muted, #5C5C5C);
        --ai-shadow: 0 2px 6px #00000005;
        --ai-option-bg: var(--replit-docs-bg-elevated, #F1F1EE);
        --ai-option-border: var(--replit-docs-border, #DEDAD5);
        --ai-option-hover-bg: var(--replit-docs-bg-muted, #F1F1EE);
        --ai-option-selected-bg: var(--replit-docs-bg-muted, #F1F1EE);
        --ai-pill-bg: #CDDCF1;
        --ai-pill-text: var(--replit-docs-text-muted, #5C5C5C);
      }

      /* Theme variables - dark mode */
      .dark [data-agent-input-container],
      html.dark [data-agent-input-container],
      [data-theme="dark"] [data-agent-input-container] {
        --ai-surface-bg: var(--replit-docs-bg, #1E1E1F);
        --ai-surface-higher: var(--replit-docs-bg-elevated, #222223);
        --ai-border-default: var(--replit-docs-border, #39393D);
        --ai-border-strong: var(--replit-docs-border-strong, #4A4A50);
        --ai-text-secondary: var(--replit-docs-text-muted, #B8B8BE);
        --ai-text-tertiary: var(--replit-docs-text-subtle, #8E8F97);
        --ai-text-primary: var(--replit-docs-text, #F5F5F5);
        --ai-button-bg: var(--replit-docs-bg-elevated, #222223);
        --ai-button-bg-hover: var(--replit-docs-bg-muted, #222223);
        --ai-icon-default: var(--replit-docs-text-subtle, #8E8F97);
        --ai-icon-hover: var(--replit-docs-text-muted, #B8B8BE);
        --ai-shadow: 0 2px 6px #00000020;
        --ai-option-bg: var(--replit-docs-bg-elevated, #222223);
        --ai-option-border: var(--replit-docs-border, #39393D);
        --ai-option-hover-bg: var(--replit-docs-bg-muted, #222223);
        --ai-option-selected-bg: var(--replit-docs-bg-muted, #222223);
        --ai-pill-bg: #2A3A4D;
        --ai-pill-text: #D0D8E4;
      }

      .agent-input-container {
        box-sizing: border-box;
      }

      /* Entry animation */
      @keyframes agent-input-fade-in-up {
        from { transform: translateY(10px); opacity: 0; }
        to { transform: translateY(0); opacity: 1; }
      }

      /* Hover state for input box */
      [data-agent-input-container]:has([data-agent-input-role="inner"]:hover) [data-agent-input-role="inner"] {
        border-color: #85C7FF !important;
      }

      /* Focus state for input box */
      [data-agent-input-container]:has([data-agent-input-role="inner"]:focus-within) [data-agent-input-role="inner"] {
        border-color: #0079F2 !important;
      }

      /* Icon button hover */
      @media (hover: hover) {
        [data-agent-input-container] .ai-icon-btn:hover {
          background: var(--ai-button-bg-hover);
        }
        [data-agent-input-container] .ai-icon-btn:hover svg {
          color: var(--ai-icon-hover);
        }
        [data-agent-input-container] .ai-option-btn:not([data-selected="true"]):hover {
          background: var(--ai-option-hover-bg);
        }
        [data-agent-input-container] .ai-plan-btn:hover {
          background: var(--ai-button-bg-hover);
        }
        [data-agent-input-container] .ai-nav-btn:hover svg {
          color: var(--ai-icon-hover);
        }
        [data-agent-input-container] .ai-pill-close:hover {
          opacity: 0.7;
        }
      }
      @keyframes plan-border-spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
      }
      [data-agent-input-container] .ai-plan-wrap {
        position: relative;
        border-radius: 32px;
        padding: 2px;
        overflow: hidden;
      }
      [data-agent-input-container] .ai-plan-wrap::before {
        content: '';
        position: absolute;
        inset: -50%;
        background: conic-gradient(
          #3b82f6, #8b5cf6, #ec4899, #f59e0b, #10b981, #3b82f6
        );
        animation: plan-border-spin 1s linear infinite;
      }
      [data-agent-input-container] .ai-plan-wrap .ai-plan-btn-highlight {
        position: relative;
        background: var(--ai-surface-higher);
        color: var(--ai-text-primary);
        font-weight: 400;
        border: none;
        border-radius: 32px;
        z-index: 1;
      }
      [data-agent-input-container] .ai-plan-wrap.ai-plan-off::before {
        animation: none;
        background: transparent;
      }
      [data-agent-input-container] .ai-plan-wrap.ai-plan-off .ai-plan-btn-highlight {
        background: var(--ai-button-bg);
        color: var(--ai-text-secondary);
      }
      /* Plan checkbox styles */
      [data-agent-input-container] .ai-plan-checkbox-label {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        height: 32px;
        padding: 0 8px;
        border-radius: var(--border-radius-6, 6px);
        background: var(--ai-button-bg);
        cursor: pointer;
        font-size: 12px;
        font-family: inherit;
        color: var(--ai-text-secondary);
        transition: background 120ms ease-out;
        user-select: none;
      }
      @media (hover: hover) {
        [data-agent-input-container] .ai-plan-checkbox-label:hover {
          background: var(--ai-button-bg-hover);
        }
      }
      [data-agent-input-container] .ai-plan-checkbox-input {
        width: 20px;
        height: 20px;
        margin: 0;
        accent-color: #0079F2;
        cursor: pointer;
      }
      [data-agent-input-container] .ai-start-wrap {
        position: relative;
        display: inline-flex;
        padding: 3px;
        border-radius: 8px;
        overflow: hidden;
      }
      [data-agent-input-container] .ai-start-wrap::before {
        content: '';
        position: absolute;
        inset: -50%;
        background: conic-gradient(
          #3b82f6, #8b5cf6, #ec4899, #f59e0b, #10b981, #3b82f6
        );
        animation: plan-border-spin 1s linear infinite;
      }
      [data-agent-input-container] .ai-start-wrap .ai-start-btn-highlight {
        position: relative;
        background: var(--ai-surface-higher);
        border: none;
        border-radius: 6px;
        z-index: 1;
      }
    `;
    document.head.appendChild(style);
  }
  const getLink = (container, promptOverride) => {
    if (typeof document === "undefined" || !window.LZString) return "";
    const prompt = promptOverride || getAgentInputPromptValue(container);
    if (!prompt) return "";
    const encoded = window.LZString.compressToEncodedURIComponent(prompt);
    const utm = "utm_source=replit-docs&utm_medium=docs&utm_campaign=docs-intro-agent-input&utm_content=homepage-prompt-box";
    return `https://replit.com/?prompt=${encoded}&referrer=replit-docs&${utm}`;
  };
  const handleStartClick = e => {
    e.preventDefault();
    const container = findAgentInputContainer(e.currentTarget);
    const link = getLink(container);
    if (link) window.open(link, "_blank");
  };
  const toggleOutputType = name => {
    const btn = document.querySelector(`[data-option-name="${name}"]`);
    const pillsContainer = document.getElementById("agent-input-pills");
    if (!btn || !pillsContainer) return;
    const isSelected = btn.dataset.selected === "true";
    if (isSelected) {
      btn.dataset.selected = "false";
      btn.style.background = "var(--ai-option-bg)";
      const iconEl = btn.querySelector(".option-icon");
      const type = outputTypes.find(t => t.name === name);
      if (iconEl && type) iconEl.innerHTML = type.iconSvg;
      const pill = document.getElementById(`pill-${name}`);
      if (pill) pill.remove();
    } else {
      document.querySelectorAll('[data-option-name][data-selected="true"]').forEach(prevBtn => {
        const prevName = prevBtn.dataset.optionName;
        prevBtn.dataset.selected = "false";
        prevBtn.style.background = "var(--ai-option-bg)";
        const prevIconEl = prevBtn.querySelector(".option-icon");
        const prevType = outputTypes.find(t => t.name === prevName);
        if (prevIconEl && prevType) prevIconEl.innerHTML = prevType.iconSvg;
        const prevPill = document.getElementById(`pill-${prevName}`);
        if (prevPill) prevPill.remove();
      });
      btn.dataset.selected = "true";
      btn.style.background = "var(--ai-option-selected-bg)";
      const iconEl = btn.querySelector(".option-icon");
      if (iconEl) iconEl.innerHTML = checkSvg;
      const type = outputTypes.find(t => t.name === name);
      if (type) {
        const pill = document.createElement("span");
        pill.id = `pill-${name}`;
        pill.style.cssText = "display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 8px 0 8px;border-radius:32px;background:var(--ai-pill-bg);color:var(--ai-pill-text);font-size:14px;white-space:nowrap;cursor:default;";
        pill.innerHTML = `<span style="display:flex;align-items:center"><svg width="12" height="12" viewBox="0 0 24 24" fill="currentColor">${type.iconSvg.replace(/<svg[^>]*>/, "").replace("</svg>", "")}</svg></span><span>${name}</span><span class="ai-pill-close" style="display:flex;align-items:center;cursor:pointer;margin-left:2px" data-pill-remove="${name}"><svg width="12" height="12" viewBox="0 0 24 24" fill="currentColor"><path d="M18.3 5.71a1 1 0 0 0-1.42 0L12 10.59 7.12 5.7A1 1 0 0 0 5.7 7.12L10.59 12 5.7 16.88a1 1 0 1 0 1.42 1.42L12 13.41l4.88 4.89a1 1 0 0 0 1.42-1.42L13.41 12l4.89-4.88a1 1 0 0 0 0-1.41Z"/></svg></span>`;
        pill.querySelector(`[data-pill-remove="${name}"]`).addEventListener("click", () => toggleOutputType(name));
        pillsContainer.appendChild(pill);
      }
    }
  };
  const PlusIcon = <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
      <path d="M12 4.25a.75.75 0 0 1 .75.75v6.25H19a.75.75 0 0 1 0 1.5h-6.25V19a.75.75 0 0 1-1.5 0v-6.25H5a.75.75 0 0 1 0-1.5h6.25V5a.75.75 0 0 1 .75-.75Z" />
    </svg>;
  const MicIcon = <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
      <path d="M19 9.25a.75.75 0 0 1 .75.75v2a7.75 7.75 0 0 1-7 7.713V22a.75.75 0 0 1-1.5 0v-2.287a7.75 7.75 0 0 1-6.99-7.328L4.25 12v-2a.75.75 0 0 1 1.5 0v2l.008.31A6.25 6.25 0 0 0 12 18.25l.31-.008a6.249 6.249 0 0 0 5.932-5.932l.008-.31v-2a.75.75 0 0 1 .75-.75Z" />
      <path fillRule="evenodd" d="M12 1.25A3.75 3.75 0 0 1 15.75 5v7a3.75 3.75 0 1 1-7.5 0V5A3.75 3.75 0 0 1 12 1.25Zm0 1.5A2.25 2.25 0 0 0 9.75 5v7a2.25 2.25 0 0 0 4.5 0V5A2.25 2.25 0 0 0 12 2.75Z" clipRule="evenodd" />
    </svg>;
  const ArrowUpIcon = <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
      <path fillRule="evenodd" d="M11.47 4.47a.75.75 0 0 1 1.06 0l7 7a.75.75 0 1 1-1.06 1.06l-5.72-5.72V19a.75.75 0 0 1-1.5 0V6.81l-5.72 5.72a.75.75 0 0 1-1.06-1.06l7-7Z" clipRule="evenodd" />
    </svg>;
  const ArrowLeftIcon = <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
      <path fillRule="evenodd" d="M4.47 11.47a.75.75 0 0 0 0 1.06l7 7a.75.75 0 1 0 1.06-1.06l-5.72-5.72H19a.75.75 0 0 0 0-1.5H6.81l5.72-5.72a.75.75 0 0 0-1.06-1.06l-7 7Z" clipRule="evenodd" />
    </svg>;
  const ArrowRightIcon = <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
      <path fillRule="evenodd" d="M19.53 11.47a.75.75 0 0 1 0 1.06l-7 7a.75.75 0 1 1-1.06-1.06l5.72-5.72H5a.75.75 0 0 1 0-1.5h12.19l-5.72-5.72a.75.75 0 0 1 1.06-1.06l7 7Z" clipRule="evenodd" />
    </svg>;
  const iconBtnStyle = {
    display: "flex",
    alignItems: "center",
    justifyContent: "center",
    width: "28px",
    height: "28px",
    border: "none",
    borderRadius: "6px",
    background: "transparent",
    cursor: "pointer",
    color: "var(--ai-icon-default)",
    padding: 0,
    transition: "background 120ms ease-out"
  };
  const optionIconStyle = {
    display: "flex",
    alignItems: "center",
    justifyContent: "center",
    width: "48px",
    height: "48px",
    border: "1px solid var(--ai-option-border)",
    borderRadius: "12px",
    background: "var(--ai-option-bg)",
    cursor: "pointer",
    color: "var(--ai-text-secondary)",
    padding: 0,
    transition: "background 120ms ease-out",
    flexShrink: 0
  };
  const initAgentInput = container => {
    if (!container) {
      return;
    }
    updateAgentInputButtonState(container);
    startAgentInputTypewriter(container, {
      defaultPrompt,
      placeholder,
      showTypewriter
    });
    const ta = container.querySelector('[data-agent-input-role="textarea"]');
    if (ta && ta.value) {
      requestAnimationFrame(() => {
        ta.style.height = "auto";
        ta.style.height = ta.scrollHeight + "px";
      });
    }
  };
  return <div ref={initAgentInput} data-agent-input-container className="agent-input-container" style={{
    fontFamily: "'IBM Plex Sans', sans-serif",
    width: "100%",
    maxWidth: "734px",
    alignSelf: "center",
    margin: "48px auto",
    opacity: 0,
    animation: "agent-input-fade-in-up 300ms ease-out forwards"
  }}>
      <div style={{
    display: "flex",
    flexDirection: "column",
    gap: "24px"
  }}>
        {}
        <div data-agent-input-role="inner" style={{
    position: "relative",
    borderRadius: "6px",
    border: "1px solid var(--ai-border-strong)",
    background: "var(--ai-surface-bg)",
    transition: "border-color 120ms ease-out",
    boxShadow: "var(--ai-shadow)"
  }}>
          {}
          <div style={{
    padding: "12px 12px 48px 12px"
  }}>
            <textarea data-agent-input-role="textarea" placeholder={placeholder} defaultValue={defaultPrompt} rows={1} onInput={e => {
    const ta = e.currentTarget;
    ta.style.height = "auto";
    ta.style.height = ta.scrollHeight + "px";
    updateAgentInputButtonState(findAgentInputContainer(ta));
  }} style={{
    display: "block",
    width: "100%",
    minHeight: "21px",
    maxHeight: "calc(14px * 1.5 * 10)",
    padding: 0,
    margin: 0,
    border: "none",
    outline: "none",
    resize: "none",
    fontSize: "14px",
    lineHeight: "1.5",
    color: "var(--ai-text-primary)",
    background: "transparent",
    fontFamily: "inherit",
    boxSizing: "border-box",
    overflowY: "auto"
  }} />
          </div>
          {}
          <div style={{
    position: "absolute",
    left: "8px",
    right: "8px",
    bottom: "8px",
    display: "flex",
    justifyContent: "space-between",
    alignItems: "center"
  }}>
            {}
            <div style={{
    display: "flex",
    alignItems: "center",
    gap: "8px",
    overflow: "hidden",
    minWidth: 0
  }}>
              <button className="ai-icon-btn" style={iconBtnStyle} aria-label="Add attachment" type="button">
                {PlusIcon}
              </button>
              <div id="agent-input-pills" data-agent-input-role="pills" style={{
    display: "flex",
    alignItems: "center",
    gap: "6px",
    overflow: "hidden"
  }}></div>
            </div>
            {}
            <div style={{
    display: "flex",
    alignItems: "center",
    gap: "8px",
    flexShrink: 0
  }}>
              {highlightPlan ? <div className="ai-plan-wrap" onClick={e => {
    const wrap = e.currentTarget;
    wrap.classList.toggle("ai-plan-off");
  }}>
                  <label className="ai-plan-btn-highlight" style={{
    display: "flex",
    alignItems: "center",
    gap: "6px",
    height: "32px",
    padding: "0 8px",
    cursor: "pointer",
    fontSize: "12px",
    fontFamily: "inherit",
    transition: "background 120ms ease-out"
  }}>
                    <input className="ai-plan-checkbox-input" type="checkbox" aria-label="Plan mode" name="Plan mode" defaultChecked />
                    <span>Plan</span>
                  </label>
                </div> : <label className="ai-plan-checkbox-label">
                  <input className="ai-plan-checkbox-input" type="checkbox" aria-label="Plan mode" name="Plan mode" />
                  <span>Plan</span>
                </label>}
              <button className="ai-icon-btn" style={iconBtnStyle} aria-label="Start voice input" type="button">
                {MicIcon}
              </button>
              {highlightStart ? <div className="ai-start-wrap">
                  <button data-agent-input-role="start-button" className="ai-icon-btn ai-start-btn-highlight" onClick={handleStartClick} type="button" aria-label="Start" style={{
    ...iconBtnStyle,
    borderRadius: "6px",
    background: "#0079F2",
    color: "#fff",
    opacity: defaultPrompt ? "1" : "0.4",
    cursor: defaultPrompt ? "pointer" : "not-allowed"
  }}>
                    {ArrowUpIcon}
                  </button>
                </div> : <button data-agent-input-role="start-button" className="ai-icon-btn" onClick={handleStartClick} type="button" aria-label="Start" style={{
    ...iconBtnStyle,
    background: "#0079F2",
    color: "#fff",
    opacity: defaultPrompt ? "1" : "0.4",
    cursor: defaultPrompt ? "pointer" : "not-allowed"
  }}>
                  {ArrowUpIcon}
                </button>}
            </div>
          </div>
        </div>
      </div>
    </div>;
};

⏰ *Estimated time: 5 minutes*

## Before you begin

You'll need a free [Replit account](https://replit.com).

<Note>This quickstart uses Agent, which is included in the free Starter plan with daily credits. No credit card required.</Note>

## Welcome to Replit

When you open Replit, the first thing you see is your **Project Editor**, with the prompt box at the center. This is where everything starts. Describe what you want to build, and Agent takes it from there.

<Frame>
  <img src="https://mintcdn.com/replit/j4of5To8jzehz0JK/images/workspace/workspace-home.png?fit=max&auto=format&n=j4of5To8jzehz0JK&q=85&s=4c36166a8a0951aca0e861480dc6b17d" alt="The Replit Project Editor home screen showing the prompt input where you describe what you want to build" width="3456" height="1994" data-path="images/workspace/workspace-home.png" />
</Frame>

## Build your app

<Steps>
  <Step title="Describe what you want to build">
    In the prompt box on the home screen, describe what you want to build. Be specific about features and behavior — the more detail you give Agent, the better the result.

    For this quickstart, try something like: *"Build a realistic 16-key piano with proper white and black key layout. Each key should press down with animation when clicked and play the correct note."*

    Press **Start** to kick off the build. Agent sets up your project and starts writing code. This takes about 3–5 minutes.

    <Tip>You can build any idea you like — a to-do list, a landing page, a quiz app. The rest of the steps work the same way.</Tip>
  </Step>

  <Step title="Preview your app">
    When Agent finishes, navigate to the **Preview** tab to see your app in action. Click around and interact with it to make sure it works the way you expect.

    <Frame>
      <video autoPlay muted loop playsInline src="https://cdn.replit.com/sanity/quickstart-piano-demo.mp4" />
    </Frame>

    <Note>Your app might look slightly different from the screenshots — Agent can generate varied results from the same prompt.</Note>
  </Step>

  <Step title="Publish your app">
    Ready to share? Click **Publish** in the Project Editor to deploy your app to a public URL that anyone can visit.

    <Frame>
      <video autoPlay muted loop playsInline src="https://cdn.replit.com/sanity/quickstart-publish-app.mp4" />
    </Frame>

    Your app is now live. Copy the URL and share it with anyone.
  </Step>
</Steps>

## Try it now

Ready to build? Press <StartButton /> to open Replit with the piano prompt pre-filled.

<AgentInput highlightStart defaultPrompt="Build a realistic 16-key piano with proper white and black key layout that looks exactly like a real piano. Each key should press down with realistic depth animation when clicked and play the correct note." showTypewriter={false} />

## Next steps

<CardGroup cols={2}>
  <Card title="Design with Canvas" icon="palette" href="/getting-started/quickstarts/design-with-canvas">
    Explore design variations and restyle your app visually.
  </Card>

  <Card title="Expand your project" icon="layer-group" href="/getting-started/quickstarts/expand-your-project">
    Add a mobile app, slide deck, or other artifacts to your project.
  </Card>

  <Card title="Publish your app" icon="globe" href="/getting-started/quickstarts/publish">
    Learn about custom domains, sharing, and how publishing works.
  </Card>

  <Card title="Agent" icon="robot" href="/core-concepts/agent">
    Explore everything Agent can do.
  </Card>
</CardGroup>