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

# SINT Operators

> The hands. Production-ready agentic loops for outbound automation and business workflows.

**SINT Operators** are production-ready agentic loops for business automation. LinkedIn outreach, reply classification, CRM routing, escalation, A/B testing. Built on SINT Protocol governance so every action is capability-scoped, audited, and tier-gated.

## What Operators do

An Operator is a long-running agentic loop that owns a specific business workflow end-to-end. Unlike a chatbot or a one-shot LLM call, an Operator:

* **Persists state** across days, weeks, or months
* **Acts under governance** — every external call is tier-classified and capability-scoped
* **Audits itself** — every decision lands on the evidence ledger
* **Learns within bounds** — reply classification and routing improve with confirmed outcomes; bounded by policy

## Reference Operators

### LinkedIn outreach loop

The first reference Operator. Replaces the manual SDR workflow for services firms.

**What it does:**

1. Ingests target lists (CSV, CRM integration, or manual upload)
2. Runs multi-step LinkedIn sequences with configurable cadence
3. Classifies replies (positive / neutral / negative / unsubscribe / out-of-office)
4. Routes positive replies to the sales lead via email or CRM
5. Escalates edge cases to a human for T2 approval
6. A/B tests subject lines, openings, and CTAs with statistical rigor

**Stack:**

* Ulinc as the LinkedIn transport layer
* GoHighLevel (or other CRM) for routing
* Claude for reply drafting and classification
* SINT Protocol for tier-gating and audit

**Deployment pattern:** see `sint-ai/sint-outreach` on GitHub.

### Inbound qualification

Handles first-touch lead qualification across channels.

**What it does:**

1. Ingests inbound leads from forms, Calendly, referrals
2. Runs a short qualification prompt (2–4 exchanges)
3. Decides: book / human-approve / disqualify
4. Either books a calendar slot directly or escalates
5. Produces a daily digest for the sales lead

### Document intake

Classifies, routes, and escalates inbound documents for compliance-heavy workflows (legal, clinical admin, insurance).

**What it does:**

1. OCR on inbound documents (fax, email attachment, upload)
2. Classifier determines document type
3. T2 routing decisions pass through the Gateway
4. T3 actions (PHI handling, escalation to clinician, legal hold) require human approval
5. Full trace-back on any document action via evidence ledger

## Why Operators run on SINT Protocol

The Protocol is not an add-on. It's what makes an agentic loop safe to run unattended.

<Steps>
  <Step title="Capability-scoped">
    Each Operator holds a capability token that limits what it can do. A LinkedIn outreach Operator cannot suddenly send email or make API calls to unapproved services.
  </Step>

  <Step title="Tier-gated">
    Routine reply classification is T1 (auto-approved, audited). Routing a lead to a sales partner's calendar is T2 (requires review on edge cases). Sending a message on behalf of a human is T3 (requires approval).
  </Step>

  <Step title="Audited">
    Every reply classification, every routing decision, every message sent — it's all on the evidence ledger with SHA-256 chain integrity. Any compliance team can audit an Operator's full decision history.
  </Step>

  <Step title="Revocable">
    If an Operator starts misbehaving, the Gateway can revoke its token in real time. No need to restart processes or reconfigure rules.
  </Step>
</Steps>

## Building your own Operator

Operators are just agentic loops that use the SINT SDK. See [developer quickstart](/developers/quickstart) for the SDK, and [bridges](/protocol/bridges) for the integration points.

## Studio engagements

Most Operators are deployed by SINT Studio rather than built from scratch by customers. If you want an Operator deployed for your workflow without the engineering cost, see [Studio services](https://sint.gg/studio).

## Read next

<CardGroup cols={2}>
  <Card title="Work" icon="briefcase" href="https://sint.gg/work">
    Case studies of Operators in production.
  </Card>

  <Card title="CMO Operator" icon="video" href="/products/cmo-operator">
    The content-production Operator.
  </Card>
</CardGroup>