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

# Welcome to Decisional

> Build and operate agents that work with the apps you use

<Frame>
  <img src="https://mintcdn.com/decisional/kawrqzATHxMDlINO/images/Cover17.png?fit=max&auto=format&n=kawrqzATHxMDlINO&q=85&s=6f3396da22f2adcb054f4545d52a59c1" alt="Decisional Cover" width="4800" height="2520" data-path="images/Cover17.png" />
</Frame>

## What is Decisional?

Decisional helps you build and operate AI agents for business workflows. You describe the work in natural language, Dex helps turn that intent into an agent, and the agent builds, tests, runs, monitors, and repairs workflows across the apps and data you authorize.

<Card title="Core Philosophy" icon="lightbulb">
  **Describe what you want automated, then keep the work inspectable.** Agents build workflows, connect to tools, test before they go live, and expose runs, nodes, files, approvals, and tool activity so you can see what happened.
</Card>

## Dex and agents

<CardGroup cols={2}>
  <Card title="Dex" icon="message">
    Dex is the conversational operator for your workspace. Use Dex for one-off work, questions, agent creation, workflow changes, and run review.
  </Card>

  <Card title="Agents" icon="robot">
    Agents are the durable workers. Each one owns instructions, workflow, tools, sources, triggers, runs, and approval policy.
  </Card>
</CardGroup>

## Automation Spectrum

Decisional addresses the full automation spectrum: Dex handles plain-English assistant work, Automation Agents run complex recurring processes, and each workflow can still use deterministic steps when a rule, trigger, approval, or API call is the right tool for the job.

<CardGroup cols={3}>
  <Card title="AI Assistant" icon="message">
    Use Dex for one-off reasoning, drafting, questions, and work across the tools in your workspace. Dex can also decide when a request should become a reusable agent instead of a single conversation.
  </Card>

  <Card title="Agentic Workflow" icon="robot">
    Automation Agents build, test, run, monitor, and repair purpose-built workflows. They plan across steps, handle exceptions, recover from failures, and keep run history visible.
  </Card>

  <Card title="Non-AI Workflow" icon="check">
    Not every step needs a model. Agents can use deterministic workflow steps for known paths, including triggers, schedules, API calls, file operations, approvals, and structured outputs.
  </Card>
</CardGroup>

## Why Decisional?

<CardGroup cols={2}>
  <Card title="Just Talk to It" icon="message">
    Describe what you want in plain English. Dex can handle one-off work or help create an agent for recurring work.
  </Card>

  <Card title="Works with Your Apps" icon="plug">
    Connect your business tools, files, and triggers. Agents use the systems you authorize.
  </Card>

  <Card title="Runs End to End" icon="check">
    Agents can build, test, run, monitor, and repair purpose-built workflows with visible run history.
  </Card>

  <Card title="Understands Your Documents" icon="brain">
    Upload documents and spreadsheets as sources so agents can use the right context for the job.
  </Card>
</CardGroup>

## How It Works

<Steps>
  <Step title="Describe the Work">
    Tell Dex what you want automated in plain English. Upload relevant documents or spreadsheets for context.
  </Step>

  <Step title="Build the Workflow">
    Decisional creates an inspectable workflow, connects the right tools, and tests the workflow before it goes live.
  </Step>

  <Step title="Review Policy and Approvals">
    See exactly what your agent will do before it goes live. Approve actions, set approval policy, or ask Dex to change the workflow.
  </Step>

  <Step title="Let It Run">
    Your agent can run from triggers, schedules, public run links, or on demand. Monitor progress through runs, node logs, outputs, and chat.
  </Step>
</Steps>

## What Makes Decisional Different

<CardGroup cols={3}>
  <Card title="Powerful" icon="bolt">
    Dex handles one-off work and helps build agents for recurring workflows. Agents can use connected tools, files, triggers, and skills to read, write, generate outputs, and keep work moving across business systems.
  </Card>

  <Card title="Reliable" icon="shield-check">
    Decisional pairs AI judgment with inspectable workflow steps. Agents build and test workflows before they go live, show node-level execution, and can diagnose failed runs, retry transient errors, patch code-level issues, or ask for missing human input.
  </Card>

  <Card title="Auditable" icon="clipboard-check">
    Every run leaves a trail. Teams can review run history, workflow steps, node logs, files, approvals, tool calls, usage, and agent-level credit activity, then adjust the automation from the same workspace.
  </Card>
</CardGroup>

## Who Uses Decisional?

<CardGroup cols={3}>
  <Card title="Finance Teams" icon="dollar-sign">
    Quote generation, invoice processing, reconciliation, and contract data extraction.
  </Card>

  <Card title="Sales & GTM" icon="handshake">
    Outbound sequences, CRM updates, demo follow-ups, and lead enrichment.
  </Card>

  <Card title="Operations" icon="gear">
    Data entry, web scraping, email triage, and workflow orchestration.
  </Card>

  <Card title="Marketing" icon="bullhorn">
    Content pipelines, competitor analysis, and SEO workflows.
  </Card>

  <Card title="Founders" icon="rocket">
    Portfolio monitoring, sign-up processing, and auto-responses at scale.
  </Card>

  <Card title="Developers" icon="code">
    Custom workflows with the API and programmatic access.
  </Card>
</CardGroup>

## Example Use Cases

A few workflows teams run with Decisional:

* **Quote Generation**: Upload price lists, agent generates quotes automatically
* **Invoice Management**: Agent extracts contract data, creates invoices, sends via email
* **Data Entry**: Agent OCRs forms and receipts, populates your spreadsheet
* **CRM Updating**: Agent syncs meeting notes, updates deal stages automatically
* **Contract Extraction**: Agent parses PDF contracts, extracts key terms

## Get Started

Ready to build your first agent?

<Card title="Quickstart Guide" icon="rocket" href="/quickstart">
  Create your first agent and run your first automation in minutes.
</Card>

## Need Help?

<CardGroup cols={2}>
  <Card title="Core Concepts" icon="book" href="/core-concepts">
    Learn about Agents, Workflows, Integrations, and more
  </Card>

  <Card title="Agent Modes" icon="robot" href="/agents/modes">
    Learn when to use Chat Mode, Operator Mode, and Run Mode
  </Card>

  <Card title="Support" icon="life-ring" href="mailto:founders@decisional.com">
    Get help from our team
  </Card>
</CardGroup>