Writing
AI controls, agent systems, banking governance, production practice. 404 essays, newest first.
- AI Controls Architecture
Risk teams know risk. The open problem is designing controls for systems that are non-deterministic, probabilistic, and attackable in natural language.
- Governing Agents the Way Cells Govern Themselves
Six cell biology mechanisms that reveal what the networking 'control plane' metaphor misses about governing AI agents.
- The Risk Without an Engineering Solution
Every other agentic AI risk has an engineering answer. Prompt injection doesn't. That changes everything about how you design controls.
- A Skill Is Not a Prompt
The useful unit in agent systems is not a better instruction. It is a tested capability package: judgment, code, checks, routing, and boundaries.
- The Model Is Not the Unit of Return
Model revenue is not customer return. The economic and risk unit is the harness that turns model output into accountable work.
- After the Harness
Once model companies supply the generic agent harness, the valuable work moves into workflow design, human intervention, domain data, and the definition of good work.
- The SOP Is the Product
Enterprise AI stops being a chatbot when the operating procedure becomes the thing the system can execute, inspect, and improve.
- The Agent Is the Trace
Long-running agents are not defined by the model call. They are defined by the state, rules, tools, failures, and corrections that survive it.
- The frontier is no longer the back office
Ken Griffin watched PhD-level finance work compress from months to days. The interesting question is whether bank AI controls are designed for the layer where the work now lives.
- Agent-Native Onboarding Is Not a Signup Form
If a product wants agents as real users, first-run setup has to be an executable workflow, not a human signup ceremony wrapped in documentation.
- When Code Gets Cheap, Coordination Gets Expensive
Coding agents move the bottleneck from implementation to shared intent.
- After Automation, Judgment Becomes Infrastructure
When execution gets cheap, the scarce work moves to framing, review, and the systems that preserve judgment.
- What a port forgets
Porting a tool's API ports its constraints. Design from the target environment's ideal, then reconcile against the source's primitives.
- What the receipts cost
On the arithmetic and the binary in Susan Zhang's case for technologist careers.
- Recovery Is Not Control
Fast repair is useful, but it does not prove that a system remains understandable.
- The Label Is Not the Risk
AI governance needs domain knowledge where technical behaviour changes route, evidence, controls, and monitoring.
- The Agent Is Not the Control Point
Finance agents are evidence custody systems before they are model systems.
- A Persona Is Not a Control
Assigning roles to AI agents can look like governance. It only becomes useful when the role has a loss function, an evidence boundary, and an output contract.
- Govern the Workflow, Not the Model
Agent governance cannot stop at model behavior. Once AI systems use tools, the governed object is the whole workflow.
- Autonomy Starts at the Check
An agent is not autonomous because it can try a task. It is autonomous when the system can tell whether the task worked.
- Tool Health Is the Missing Layer of Agent-Native Apps
Agent-native apps do not become trustworthy when an agent can call tools. They become trustworthy when the app can prove those tools worked.
- Unknown Is Not Low Risk
Proportionate AI governance only works when the lighter path is earned by evidence, not granted by missing concerns.
- Published Is a Reader State
A system has not published when the source is correct. It has published when the reader-facing surface is correct.
- A Garden Is Not a Changelog
Recent work only becomes public writing when the claim survives the removal of the event that produced it.
- Latest Is a Race Condition
In a concurrent agent system, verifying the latest artefact is not verification. It is a scheduling bet.
- Move the gate to the package manager
When a supply chain attack lands and the timeline is asking for discipline, the durable fix is one layer down — at the package manager, not at your attention span.
- The check belongs at the trigger
Corrections that fire by judgment drift; checks that fire by trigger don't. When your AI assistant keeps making the same mistake, move the gate.
- When defender news weakens the Ask
Citing a vendor defender product in a paper that argues the threat surface is moving faster than controls undercuts the case it is supposed to support.
- The Thirty-Minute Fix for a Non-Existent Bug
If you are about to assert that a tool isn't installed, run `which` first. The check is one line. The cost of skipping it is a half-hour of defensive scaffolding for a problem that wasn't there.
- Lint as Cartography
The first time you run a quality gate against real data, the output is less about the gate and more about the data.
- Detect-and-Degrade
When your tool depends on the host, declare the dependency at the gate. Don't wrap it. Don't patch around it.
- The missing layer between model risk and application security
Model risk reviews the model. Application security reviews the application. Neither sits behind the agent at execution time, watching the verbs as they go out.
- Multi-persona AI review models the receiver, not the commission
Persona-based AI reviews predict how stakeholders will react to a paper. They cannot tell you whether to act on those predictions, because the commissioning history is invisible to the lens.