Design the right agent.Then build it right.

The build got cheap. The design didn't.I design the AI agents that live inside your products and services, before a line of instructions is written.

The build got cheap.The design didn't.

Cursor, Claude Code and Copilot Studio will write an agent's markdown in minutes. None of them can tell you what the agent should be, what it must never do, or who signs off when it acts. That's a design job, and most teams don't have anyone doing it.

Three ways agents fail

  • Failure 01

    Frameworks first, purpose later

    Teams pick a platform, then look for a job for it. The agent ends up doing two jobs badly.

  • Failure 02

    "Be helpful" is not a brief

    Instructions get written by whoever is nearest the keyboard. Vague briefs make vague agents.

  • Failure 03

    Guardrails bolted on at the end

    Legal, policy and compliance see the agent the week before go-live. Approval gates become paint, not architecture.

Every agent gets designed.(usually by accident)I design them around the people who use them.

Vijay Kandhalu

Not UX. Not service design.A new seat at the table.

An AI Agents Designer owns what the agent is, not how it's coded. I sit between your service owners, your engineers and your risk owners, and turn a service need into an agent your team can build with confidence.
How this practice compares
ComparisonAI Agents DesignerService DesignerUX DesignerEngineer
OwnsThe agent's role, persona, skills, tools, memory, channels and guardrailsEnd-to-end service journeys, touchpoints and policy intentScreens, journeys and interface patternsThe code, models, integrations and infrastructure
Main outputA signed-off agent design pack, ready to buildService maps, blueprints and design historiesPrototypes and UI specsA running agent in production
Works withService owners, legal, policy, compliance, engineeringPolicy, operations, users and multi-disciplinary teamsResearchers, product managers, developersProduct, platform and data teams
AnswersWhat should this agent do, and where must it stop?How does the whole service work for people?How should people use this screen?How do we make it run, reliably?
WhenBefore the build, and at every changeDiscovery through live serviceThroughout deliveryDuring and after the build

I've worked across all four seats. That's why I can design the first one well.

Agent anatomy,designed on purpose.

Every agent has the same parts, whatever the platform. I design each one with the people who own the risk, then hand engineering a pack they can build from in Cursor, Claude Code or Copilot Studio.
Understand the serviceOne user, one job, done well.

What I decide

Which job in the service genuinely needs an agent, who it serves, and what "working" looks like.

What you get

An agent opportunity map and a one-page job statement your service owner signs.
Instructions, role and personaThe brief it reads before every turn.

What I decide

The agent's role, voice, tone, refusals and examples of a good answer.

What you get

instructions.md, written in plain language and critiqued like any design artefact.
SkillsPlaybooks that load only when needed.

What I decide

Which procedures deserve a playbook, what triggers each one, and the quality bar.

What you get

A skills catalogue, one procedure per skill, with no overlap or contradiction.
ToolsIf it isn't a tool, it can't do it.

What I decide

The fewest tools that do the job, read versus write, and which actions pause for a human.

What you get

A tool scope matrix with failure responses for every tool.
MemoryWhat it keeps, and what it must forget.

What I decide

What's worth remembering, what's never stored, and how users see and control it.

What you get

A memory register agreed with your data protection lead.
ChannelsSame brain, channel-appropriate manners.

What I decide

Where people meet the agent (in-product, Teams, Slack, email, API, scheduled runs) and how it behaves in each.

What you get

A channel map with tone, length, interruptions and human handoff per channel.
GuardrailsAutomate the work, not the accountability.

What I decide

Irreversible actions, approval gates, escalation, recovery and cost limits, agreed with legal, policy, compliance and the service owner.

What you get

A guardrail and approval-gate register, signed by the people who own the risk.
Evals and handoffUsability testing, for an actor.

What I decide

Test cases with pass criteria, run before every release.

What you get

An eval suite and a build-ready pack your engineers or AI tools can execute.

Design spine

Five questions behind every part above.

Instructions, tools, guardrails and the rest are different pieces of the same agent. I run these five questions through each one so the anatomy stays coherent and buildable.

  1. Who is it for, and what one job does it do?

  2. What must it never do?

  3. What does it need to touch?

  4. When must a human step in?

  5. How will you know it's working?

Read the Designing Agents talk → (opens in a new tab)

The best agents don't sit beside a service. They live inside it.

Vijay Kandhalu

I'm among the first in the UK to design and ship AI agents built specifically for user-centred design.

Vijay Kandhalu

Trusted bydemanding organisations.

22 years.Every layer of the stack.

I started as an engineer in 2004, moved into UX and product design in 2012, and have spent the last eight years on GOV.UK services. Agent design needs all three: the engineering to know what's buildable, the UCD to know what's needed, and the leadership to get it agreed.
  • 22

    years in product engineering and design

  • 16

    years in the UK across various sectors

  • 8

    years in public sector

  • 2

    years designing agents into live products and for the community

  1. 2004 – 2010

    Engineering

    Nokia, Alcatel Lucent, Wipro, Cognizant, Yahoo!, Orbitz, bwin.party.

  2. 2010 – 2012

    UX Design

    Rank Digital, IBM, Mecca Bingo, Grosvenor Casinos, Blue Square.

  3. 2012 – 2018

    Product Design

    British Airways, Just Eat, Betfair, Fiserv, Nationwide, Travelex, Avis Budget, Vodafone, Virgin Media, O2 Business, Fjord / Accenture Interactive, giffgaff.

  4. 2018 – now

    Service Design

    The Scottish Government (Social Security Scotland), HMRC, HMCTS, BEIS, Home Office, Cabinet Office, CQC, Ofgem, UK Export Finance, FCDO, Department for Education.

SC cleared · Certified Usability Analyst (HFI) · Master's in Computer Applications · UK public and private sector

When to bring me in.

  1. Before you build

    You know an agent could help, but not yet what it should do, what it must never do, or who signs it off.

  2. While you build

    The build has started. The instructions, tools and guardrails need designing properly before anything reaches users.

  3. After you've shipped

    The agent is live and not behaving as hoped. It needs redesigning, not just re-prompting.

  4. When you're growing the capability

    You want your own teams to design agents this way, with the methods, templates and confidence to keep going.

Is "AI Agents Designer" a real role?

It is now. Coding an agent has become the cheap part; tools like Cursor write the markdown. Deciding the agent's job, boundaries and behaviour is the expensive part, and it's a design discipline.

Do you write code?

I can, and I build every day. But on your project I'm the designer. Engineering, or your AI tools, build from my pack, and I stay close to make sure what ships matches what was agreed.

Which platforms do you design for?

Any. The anatomy is the same in Copilot Studio, Claude, OpenAI, Power Platform or a custom build. I design the agent first, then fit it to your platform.

How do you handle legal, policy and compliance?

I bring them in early, not at the end. Guardrails, approval gates and memory rules are agreed and signed off by the people who own the risk, and recorded in the pack.

Do you work on government services?

Yes. I have eight years on GOV.UK programmes, hold SC clearance and design to the Service Standard, the GOV.UK Design System and WCAG 2.2 AA.

How quickly can you start?

Usually within a week or two of a first conversation.

Available now · Contract, consulting and advisory

Let's designyour first agent.

Vijay Kandhalu

Tell me about the role or the agent. I reply within one working day.

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