James Penz

Enterprise-grade agents & automation

The canon says what good looks like. I already run it.

Andrew Ng, McKinsey, Bain, Anthropic, and OpenAI have converged on what separates production agents from demos. Most companies read those reports. Below is each principle from the published canon next to the thing in my production stack that implements it, on systems running four real business units today.

95%

of enterprise gen-AI pilots deliver no measurable P&L return

MIT NANDA, 2025

40%+

of agentic AI projects predicted canceled by end of 2027

Gartner, 2025

10–25%

EBITDA gains booked by AI leaders who scaled past pilots

Bain Technology Report 2025

95.1%

GPT-3.5 in an agentic loop vs 67.0% for GPT-4 zero-shot

Andrew Ng, HumanEval

Principle 1

Workflow beats model

What the canon says

Andrew Ng's most-quoted result: a weaker model wrapped in an agentic loop scored 95.1% on HumanEval, beating the next-generation model's 67.0% zero-shot. Bain and McKinsey say the same thing in operator language: redesign the workflow, not the task.

What I run

Every system I ship is a workflow first. The go-to-market engine at a $4B manufacturer is a plan-act-check loop with a Friday quality sweep; the model inside it has been swapped twice without the client noticing. The architecture is the asset.

Principle 2

Simplest pattern that works

What the canon says

Anthropic's reference essay is blunt: the most successful implementations use simple, composable patterns rather than complex frameworks. OpenAI's guide says start single-agent and earn your way to multi-agent.

What I run

My weekly sales-deck pipeline for a client's commercial team runs with zero LLM calls, because rules were enough and rules do not hallucinate. Agents get deployed where judgment is required, not where a cron job would do.

Principle 3

Evals are the operating system

What the canon says

Ng calls disciplined evals and error analysis the single biggest predictor of how fast a team makes progress. LangChain's survey of 1,300+ practitioners found quality is the number one production blocker, cited twice as often as cost.

What I run

Every generation in my stack is traced through Langfuse with model, tokens, latency, cost, business unit, and run id attached. Market-scan outputs pass a fact-check gate before a human sees them. Production failures become new eval cases.

Principle 4

Autonomy is granted, not assumed

What the canon says

OpenAI prescribes layered guardrails with human handoff on high-risk actions. McKinsey's agentic mesh calls it governed autonomy. Bain is bluntest: human-in-the-loop is the pragmatic reality for years.

What I run

My agents run under a control plane with per-agent budgets, heartbeats, and an issue queue. Irreversible actions gate on a human. Financial models carry explicit kill-switch criteria. Autonomy is a dial I turn up with evidence, never a default.

Principle 5

Composable and vendor-neutral

What the canon says

McKinsey's agentic mesh principles: composability, layered decoupling, vendor neutrality, observability by design. The architecture must survive agent sprawl and model churn.

What I run

My router runs eleven task tiers across six providers: Anthropic for supervision and elite writing, Gemini for extraction and research, Llama on Groq for fast classification, MiniMax for drafting, Whisper for voice, Voyage for embeddings. Any tier swaps by config, and live health probes catch a degraded provider before users do.

Principle 6

Economics are a design parameter

What the canon says

Anthropic measured multi-agent systems at roughly 15x the tokens of chat, worth it only when the task justifies it. Routing literature reports 40 to 85% cost reduction from sending each task to the cheapest model that clears the quality bar.

What I run

Classification never touches a frontier model in my stack; elite writing never touches a cheap one. Cost per run is traced next to quality, so the spend argument is a report, not an opinion. Gartner's top cancellation cause is escalating cost; mine is priced per workflow before it ships.

Principle 7

A business owner, not an IT pilot

What the canon says

Bain's winners put general managers, not IT, on the hook with data-driven targets. McKinsey found fewer than 10% of agentic programs reach meaningful scale, and pilot purgatory is the default failure mode.

What I run

Every agent I run belongs to a business unit with a number attached, because the four business units they run are mine. When an agent underperforms, it costs me money the same week. That feedback loop is the whole discipline.

Where this sits on Bain's agent maturity ladder

L1

Copilots and retrieval

Where ~90% of vertical use cases stall

L2

Single-task agents

One workflow, supervised

L3 · where I operate

Cross-system orchestration

Agents acting across systems under governance

L4 · where I operate

Multi-agent constellations

Specialized agents collaborating on shared goals

My production system is an orchestrator-worker constellation: a supervisor routes work across 20 specialized agents and 11 model tiers, with temporal graph memory, per-agent budgets, and full trace observability. It is the architecture McKinsey calls a mesh, running on my own P&L rather than in a slide.

Sources: Andrew Ng, The Batch and DeepLearning.AI agentic patterns; McKinsey QuantumBlack, Seizing the Agentic AI Advantage (2025); Bain Technology Report 2025; Anthropic, Building Effective Agents and Demystifying Evals; OpenAI, A Practical Guide to Building Agents; MIT NANDA, The GenAI Divide (2025); Gartner (2025); LangChain State of Agent Engineering. Happy to talk through any of them against the live system.

The agent on the homepage is this stack, live.

Run it on your company

What has this actually delivered?

Track record