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Field notes from production AI.

Long-form essays from the engineers shipping AI inside payers, hospitals, energy operators and proptech platforms. Written for technology leaders who care more about what runs in production than what trended last week.

All essays

Field notes, sorted by recency.

1867 essays
APPLIED AI What AI agentorchestrationActually Costs. What AI agent orchestration ActuallyCosts shows the engineering, control… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
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What AI agent orchestration Actually Costs

What AI agent orchestration Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price over the operating life. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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DATA ENGINEERING A Buyer's Guide toMaster datamanagement. A Buyer's Guide to Master datamanagement helps CDO / VP Data leaders… 01 Scope 02 Build 03 Launch 04 Iterate
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A Buyer's Guide to Master data management

A Buyer's Guide to Master data management helps CDO / VP Data leaders connect master entities, source authority, survivorship rules, stewardship workflow, and distribution and change history to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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TECHNOLOGY dbt at Scalefor Fintech. In fintech, analytics code ischange-controlled code. Tests must… ASSESS ADOPT OPTIMIZE GOVERN
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dbt at Scale for Fintech

In fintech, analytics code is change-controlled code. Tests must assert reconciliation, CI must produce evidence, and every model needs an owner who can be named to an auditor.

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TECHNOLOGY Apache Icebergfor Fintech. Iceberg gives financial data estatesas-of reproducibility and… PLAN BUILD MEASURE IMPROVE APACHE
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Apache Iceberg for Fintech

Iceberg gives financial data estates as-of reproducibility and non-destructive corrections. Set snapshot retention from your evidential requirements, not from a default.

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APPLIED AI What Fine-tuningversus promptingActually Costs. What Fine-tuning versus promptingActually Costs shows the engineering… WHATFINE-TUNING/… What Fine-tuning Best fit for your caseSimpler to operateLower switching cost prompting Actually Added complexityHeavier toolingSteeper learning curve
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What Fine-tuning versus prompting Actually Costs

What Fine-tuning versus prompting Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price at enterprise scale. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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TECHNOLOGY dbt at Scale forTechnology & SaaS. Model sprawl is a symptom of missingownership, not missing standards. Fix it… 01 Scope 02 Build 03 Launch 04 Iterate
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dbt at Scale for Technology & SaaS

Model sprawl is a symptom of missing ownership, not missing standards. Fix it with owned layers, tests that assert business rules, and CI that runs only what changed.

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APPLIED AI What Speechinterfaces inproduction ActuallyCosts. What Speech interfaces in productionActually Costs shows the engineering… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
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What Speech interfaces in production Actually Costs

What Speech interfaces in production Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price in production. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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AI GOVERNANCE A Buyer's Guide toData exfiltrationthrough agents. A Buyer's Guide to Data exfiltrationthrough agents helps enterprise leaders… ARCHITECTURE SECURITY RELIABILITY COST BUYER DATA
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A Buyer's Guide to Data exfiltration through agents

A Buyer's Guide to Data exfiltration through agents helps enterprise leaders connect legitimate tool misuse, egress visibility, agent-initiated traffic classification, output channels, and volume controls to detecting exfiltration that uses approved paths. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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QUALITY ENGINEERING A Buyer's Guide toRegression testingfor prompts. A Buyer's Guide to Regression testingfor prompts helps CTO / Head of AI… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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A Buyer's Guide to Regression testing for prompts

A Buyer's Guide to Regression testing for prompts helps CTO / Head of AI leaders connect test cases, behavioural rubric, model matrix, change attribution, and release gating to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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AI GOVERNANCE What AI incidentresponse ActuallyCosts. What AI incident response Actually Costshelps security leaders connect controls… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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What AI incident response Actually Costs

What AI incident response Actually Costs helps security leaders connect controls, evidence, ownership, failure handling, and production decisions to risk. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING Technical duediligence UnderAudit. Technical due diligence Under Audithelps CTO / VP Engineering leaders test… 01 Ad hoc 02 Managed 03 Defined 04 Optimized TECHNICAL DUE
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Technical due diligence Under Audit

Technical due diligence Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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TECHNOLOGY Real-Time CustomerData for Technology& SaaS. Real-Time Customer Data helps SaaS teamsconnect product event streams, in-app… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
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Real-Time Customer Data for Technology & SaaS

Real-Time Customer Data helps SaaS teams connect product event streams, in-app profile updates, decision latency, consent, and fallback behaviour to the moments a user is still in the session. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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AI GOVERNANCE AI incidentresponse UnderAudit. AI incident response Under Audit helpsenterprise leaders connect incident… AIINCIDENT DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
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AI incident response Under Audit

AI incident response Under Audit helps enterprise leaders connect incident records, detection evidence, near-miss capture, timeline reconstruction, and remediation proof to a response function that can show it detects things. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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TECHNOLOGY API Gateway Strategy inthe Agent Era forTechnology & SaaS. Agent traffic breaks the assumptionsyour gateway was built on. Separate… DESIGN SHIP OBSERVE REFINE API
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API Gateway Strategy in the Agent Era for Technology & SaaS

Agent traffic breaks the assumptions your gateway was built on. Separate north-south, east-west, and AI traffic deliberately, because they need different limits and different failure behavior.

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QUALITY ENGINEERING A Buyer's Guide toContract testing formodel APIs. A Buyer's Guide to Contract testing formodel APIs helps VP Engineering / Head… 01 Pilot 02 Team 03 Org 04 Scale BUYER CONTRACT
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A Buyer's Guide to Contract testing for model APIs

A Buyer's Guide to Contract testing for model APIs helps VP Engineering / Head of Infrastructure leaders connect request schema, response envelope, version metadata, error semantics, and behavioural compatibility to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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AI GOVERNANCE Data exfiltrationthrough agents UnderAudit. Data exfiltration through agents UnderAudit helps enterprise leaders connect… DESIGN SHIP OBSERVE REFINE DATA
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Data exfiltration through agents Under Audit

Data exfiltration through agents Under Audit helps enterprise leaders connect egress records, sequence reconstruction, volume evidence, agent attribution, and retention to answering what left rather than what was permitted. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PLATFORM ENGINEERING A Buyer's Guideto GPU capacityplanning. A Buyer's Guide to GPU capacity planninghelps VP Engineering / Head of… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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A Buyer's Guide to GPU capacity planning

A Buyer's Guide to GPU capacity planning helps VP Engineering / Head of Infrastructure leaders connect demand model, model footprint, concurrency profile, headroom policy, and procurement and fallback to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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TECHNOLOGY KubernetesMulti-Tenancy forTechnology & SaaS. Namespaces, vclusters, or separateclusters is a blast-radius decision, not… KUBERNETESMULTI DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
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Kubernetes Multi-Tenancy for Technology & SaaS

Namespaces, vclusters, or separate clusters is a blast-radius decision, not a cost decision. Pick the isolation your worst tenant justifies, and price the operational overhead honestly.

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PLATFORM ENGINEERING A Buyer's Guide toInfrastructure ascode for ML. A Buyer's Guide to Infrastructure ascode for ML helps VP Engineering / Head… 01 Level 1 02 Level 2 03 Level 3 04 Level 4 BUYER INFRASTRUCTURE
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A Buyer's Guide to Infrastructure as code for ML

A Buyer's Guide to Infrastructure as code for ML helps VP Engineering / Head of Infrastructure leaders connect environment definition, model and data bindings, secrets and identity, promotion workflow, and drift detection to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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TECHNOLOGY Data Productsfor Fintech. In fintech a data product needs anowner, a contract, and a stated position… 01 Pilot 02 Team 03 Org 04 Scale DATA PRODUCTS
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Data Products for Fintech

In fintech a data product needs an owner, a contract, and a stated position on point-in-time correctness. A dataset that silently restates history will fail an audit and a model at once.

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PRODUCT ENGINEERING Monolith to modulararchitecture UnderAudit. Monolith to modular architecture UnderAudit helps CTO / VP Engineering leaders… FOUNDATIONS IMPLEMENTATION OPTIMIZATION IMPACT
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Monolith to modular architecture Under Audit

Monolith to modular architecture Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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TECHNOLOGY Text-to-SQL ThatWorks for Energy. Text-to-SQL helps energy teams connectsemantic grounding, interval and unit… DISCOVERY DESIGN DELIVERY SCALE
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Text-to-SQL That Works for Energy

Text-to-SQL helps energy teams connect semantic grounding, interval and unit handling, gap treatment, guardrails, and verification to the operational questions engineers ask of time-series data. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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APPLIED AI What Context windowmanagement ActuallyCosts. What Context window management ActuallyCosts shows the engineering, control… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
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What Context window management Actually Costs

What Context window management Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price across production AI. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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INSIGHTS Testing blog. This is a test TESTINGBLOG TESTINGBLOG
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Testing blog

This is a test

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