AI agents: co-worker or hype?

September 15, 2025 • Door Arne Schoenmakers

AI agents are the talk of the town, but what do they actually do? In this blog I unpack the building blocks, compare the most popular tools and share how we at Spartner use our Mind platform to get agents live in record time – without getting lost in the tooling jungle.

Ever wondered how "autonomous AI agents" go beyond a simple chatbot?

The essence in 3 minutes

  • Agents make decisions, use tools and iterate independently – as if you have gained an extra digital colleague.

  • Three indispensable layers: Brain (LLM + logic), Perception (APIs / data) and Action (execute + repeat).

  • Open-source frameworks (LangGraph, AutoGen) give you maximum control; no-code suites (Vertex AI Agent Builder, Copilot Studio) give you speed.

  • Recent updates: Vertex Agent Engine gained HIPAA compliance, Microsoft is rolling out Copilot Studio Agent Builder broadly, Kore.ai introduced an enterprise-grade agent platform.

  • Spartner connects these ecosystems to our Mind platform: model-agnostic, lightning-fast integration and instantly plugged into your existing processes.

Actionable insights:

  • Start with one sharply defined use case.

  • Choose tooling based on compliance requirements and data location.

  • Let the agent start small, but give it memory and evaluation loops.

  • Combine open-source flexibility with a robust orchestrator (e.g. Mind) for production.

Building agents right now

From talking pole to productivity

New colleague

An agent is not a chatbot: it combines LLM reasoning with tool usage and a feedback loop. Think of it as a junior developer who picks up tickets, looks up information and learns along the way.

Three layers

  1. Brain – the LLM + your own prompt/rule engine.

  2. Perception – API connectors, RAG, sensors.

  3. Action – code execution, webhooks or even robots.

Tool landscape

Open-source: LangGraph, AutoGen, CrewAI, OpenAI Swarm, Camel.

No-code / Enterprise: Vertex Agent Builder, Beam AI, Copilot Studio, Lyzr, Glide.

Spartner mindset

With Mind we orchestrate those same three layers while plugging in any model you like (GPT-5, Gemini 2.5, Grok 4, Llama-4 etc.). This avoids vendor lock-in and lets you benefit from the fastest innovations.

How to tackle your first agent project

  1. Nail the scope

    What will the agent solve? Start small (e.g. email triage) and define a single KPI.

  2. Choose your stack

    Strict compliance regime? Opt for a platform with HIPAA/SOC2 (Vertex, Mind-private). Need fine-grained control? LangGraph + Mind orchestration.

  3. Build the Brain

    Prompt architecture, system instructions, evaluation metrics. We use nested prompting plus a guard-rail layer in Mind to catch hallucinations.

  4. Connect tools

    Our approach: first a RAG connector to company data, then high-impact APIs (CRM, ticketing, ERP).

  5. Iterate in sprints

Bedankt voor uw bericht!

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Bart Schreurs
Business Development Manager
Bart Schreurs

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