Agent type

Tool-Using

Agents that execute external API calls, database queries, and third-party integrations as part of their core reasoning loop, enabling real-world actions beyond text generation.

Capabilities

  • Dynamic tool selection based on task context
  • Argument mapping and parameter validation
  • Error retry with graceful degradation
  • Rate-limit handling and request queuing
  • Multi-tool orchestration in single turns

Limitations

  • API dependency creates external failure points
  • Permission and authentication complexity across tools

Best for

Best for

Workflow Automation Agent

Teams run 10-20 fragmented automations across Zapier, spreadsheets, and manual processes. Duplicate triggers fire, errors cascade silently, and no one has visibility into end-to-end workflow health.

Open Guide

Lead Qualifier

SDRs spend 40% of their time on leads that never convert. Manual qualification is inconsistent across reps, high-value leads get delayed in queue, and scoring criteria evolve faster than spreadsheet-based models can keep up.

Open Guide

Customer Support Agent

Support teams handle 60-80% of tickets that are repetitive FAQs, draining agent time and creating inconsistent responses. As ticket volume scales, hiring linearly is unsustainable and new agents take weeks to ramp up on product knowledge.

Open Guide

Recommended tools

Anthropic

Claude Opus 4.6, Sonnet 4.5, and Haiku 4.5 with extended thinking, agent teams, MCP integration, and up to 1M token context windows.

usage-based

Open Tool

LangChain

Agent framework (v1.1) with create_agent abstraction, LangGraph stateful orchestration, middleware for retries and moderation, and model profiles.

open-source

Open Tool

Make

Visual scenario builder with AI Agents, 2,000+ app integrations, and 30,000+ actions. Credit-based pricing with LLM model selection per scenario.

freemium

Open Tool

n8n

Visual workflow engine with AI Agent nodes, MCP tool swapping, RAG capabilities, and multi-type memory. Self-host free or use managed cloud plans.

freemium

Open Tool

OpenAI

GPT-5.2 and o-series reasoning models with the Responses API, AgentKit, and built-in tools for web search, code execution, and computer use.

usage-based

Open Tool

Architecture layers

ToolsLLMMonitoringSessions

Related use cases

Related use cases

Workflow Automation Agent

Teams run 10-20 fragmented automations across Zapier, spreadsheets, and manual processes. Duplicate triggers fire, errors cascade silently, and no one has visibility into end-to-end workflow health.

Open Guide

Lead Qualifier

SDRs spend 40% of their time on leads that never convert. Manual qualification is inconsistent across reps, high-value leads get delayed in queue, and scoring criteria evolve faster than spreadsheet-based models can keep up.

Open Guide

Customer Support Agent

Support teams handle 60-80% of tickets that are repetitive FAQs, draining agent time and creating inconsistent responses. As ticket volume scales, hiring linearly is unsustainable and new agents take weeks to ramp up on product knowledge.

Open Guide