- Explainer
- 4 min read
Agentic AI in the enterprise: a working explainer
What an AI agent is, how the loop works, what the adoption figures say and where first projects tend to go wrong.
In short
An AI agent is software that works towards a goal over several steps. It uses tools such as databases and other applications, decides its own next step and acts without a person approving each one. Large organisations are scaling agents quickly, and analysts also expect many projects to be cancelled, so a first project needs an owner, a defined workflow and a known cost per run.
Four tests for the word
Marketing uses "agent" for almost anything that talks. Gartner calls the relabelling of assistants, chatbots and automation "agent washing", and estimated in 2025 that only about 130 of the many vendors selling agentic products offer the real thing.1 There is no settled industry definition, so you will need a working one. Ours has four tests, and something counts as an agent only when it passes all of them.
- It pursues a goal across several steps. One reply to one prompt is a chatbot.
- It uses tools. It can query a system, write to one or call another service.
- It chooses its own next step. A script that always follows the same path is automation.
- It acts without a person approving every step. If someone clicks "approve" each time, that person is doing the agent’s job.
- Chatbot
- Answers in a single reply. No tools, no multi-step goal.
- Assistant
- Helps a person inside an application, for instance by drafting or summarising. The person drives each step.
- Workflow automation
- Follows a fixed path designed in advance. It may call a model, and the path never changes at run time.
- Multi-agent system
- Several agents with different roles passing work between them.
Plenty of useful products fail one of the tests, and they are still worth having. Fund and measure them as what they are.
How the loop works
An agent repeats the same cycle until the goal is met or it hits a limit. It takes a goal ("reconcile these two supplier lists"), plans the first step, calls a tool such as a query or an API, reads what came back and checks it against the goal. Then it decides whether to take another step, hand over to a person or stop.
Two pieces of infrastructure sit around that loop. The first is how the agent reaches tools. The Model Context Protocol has become the common standard, with support in ChatGPT, Claude, Cursor, Gemini, Microsoft Copilot and Visual Studio Code. In December 2025 it moved to the Agentic AI Foundation, a directed fund under the Linux Foundation, reporting more than 97 million monthly SDK downloads and 10,000 active servers at the time.2
The second is how the agent learns what your data means. A query can return a table, and the agent still has to know which column is revenue and whether it includes tax. Gartner recommends a context layer for exactly this reason.3
Where adoption stands
Read two numbers together. McKinsey found in 2026 that 40% of respondents from large organisations are scaling AI agents, up from 27% a year earlier, while smaller organisations stayed at 22%.4 Gartner forecasts that more than 40% of agentic AI projects will be cancelled by the end of 2027, because of cost, unclear value or weak risk controls.1
Forecast published August 2025
- End of 2025Most enterprise applications have embedded assistants.5
- 202640% of enterprise applications include task-specific agents, up from less than 5% in 2025.5
- 2027A third of agentic AI implementations combine agents with different skills to handle complex tasks.5
- 2028Networks of specialised agents collaborate across applications and business functions.5
- 2029At least half of knowledge workers develop new skills to work with, govern or create agents.5
Source: Gartner, 26 August 2025.5
The sequence is the useful part. Single-task agents come first, agents that cooperate inside one product follow, and agents working across products come later. Your first project belongs in the first stage.
Where first projects go wrong
Choosing a first project
Look for a narrow job that people repeat several times a week, where a mistake is visible and cheap, and where someone can check the output in minutes. Prefer work that gathers and summarises over work that changes records. Make sure you can count something before and after, such as time saved, errors caught or cases closed, and that one business leader sponsors it while one engineer runs it.
Questions people ask
Do we need agents to get value from AI?
No. McKinsey reports that nearly three-quarters of high performers redesigned workflows because of AI, and many of those redesigns use simpler tools.4
What is MCP?
The Model Context Protocol, an open standard for connecting AI applications to tools and data, now governed under the Linux Foundation.2
How do we stop an agent doing something harmful?
Limit its permissions, require approval for anything that spends money or contacts people outside the company, log every action and give a named person a way to switch it off.
Sources
All sources were published in 2025 or 2026.
- Gartner Predicts Over 40% of Agentic AI Projects Will Be Canceled by End of 2027Gartner, 25 June 2025
- MCP joins the Agentic AI FoundationModel Context Protocol blog, 9 December 2025
- Gartner Says Lack of Semantics Causes Inaccurate Artificial Intelligence Agents and Wasted SpendingGartner, 11 May 2026
- The state of AI in 2026: On the road to ROIMcKinsey & Company, 25 August 2026
- Gartner Predicts 40% of Enterprise Apps Will Feature Task-Specific AI Agents by 2026, Up from Less Than 5% in 2025Gartner, 26 August 2025
Keep reading
More from Resources
Seven checks before an AI pilot goes live
Seven checks with a test and a pass mark each, for the meeting where a pilot asks to go live.
ExplainerDecision intelligence for BI teams
What decision intelligence adds to BI and machine learning, and how to model one decision before buying anything.
OpinionYour semantic layer is a cost control
Gartner calls context a cost-control strategy for agents. What that means for a BI team, and where I would start.
BIAAS 2027, Amsterdam
Hear it first-hand from the people doing the work
Two days of keynotes, panels and 1-on-1 meetings with senior data, analytics and AI leaders, on 23-24 March 2027.