The CTO Playbook for Agentic Systems
A 71-page operating manual for engineering leaders whose software has started to reason, decide, and write the software that carries out those decisions. Written by our CTO, Andrew Stevens.
Tag
Agentic
Evidence That Looks Like Closure: Fuzzing, Fault Injection, and the GATE PARTIAL Checks
16 minutes
gate-fuzz v1.0.0 emits an artefact filed under Check15 that does not close Check15. Working out why is a useful way into which conformance …
GATE v1.5 Roadmap
10 minutes
A preview of the next GATE release: a per-control ISO/IEC 42001 mapping with the asymmetry written down, streaming-aware output validation, …
GATE v1.4: Output Validation, a Rust Companion, and the Conceptual Layer as OKF
10 minutes
GATE v1.4 adds C20 output validation at the delivery boundary, formalises break-glass as a signed contract, adds informative mappings to …
Your System Prompt Is Not a Trust Boundary
16 minutes
A text-to-SQL agent's system prompt cannot enforce a data rule. sql-guard v0.2.0 puts the rule in a parser instead, and closes eight …
Arkhe: An Ontology Language for AI Systems
7 minutes
Two weeks ago I argued that your ontology is the asset and you should own it in a neutral, versioned form. Arguing is cheap. Arkhe v0.2 is …
Your Ontology Is the Asset. Stop Renting It Back.
10 minutes
Agentic AI post-mortems keep naming the same trio: determinism failures, hallucinations, and compliance gaps. An ontology retires all three, …
AI Safety Assurance Is Still Goodwill, Not Evidence
6 minutes
The UN's first scientific assessment of AI says safety assurance still runs on developer goodwill, not verification. Here is what …
Multi-Tenant Agentic AI on Google Cloud: A Production Walkthrough
25 minutes
A review of Google's multi-tenant agentic AI reference architecture stage by stage, naming trade-offs at each decision point and filling the …
GATE v1.4 Roadmap
6 minutes
A preview of the next GATE release: output validation, break-glass formalisation, OWASP AISVS and MITRE ATLAS alignment, a Rust library, and …
The Regulatory Stack, Part 6: Building Under the CRA - A Reference Architecture
11 minutes
A production-grade reference architecture translating the GATE specification into a live runtime, using Apigee, Envoy Proxy, and …
The GATE Conformance Runner: What You Can Automate and What You Cannot
8 minutes
The gate-conformance v1.2.0 runner automates 9 of GATE's 19 checks against a live evidence store. The other 10 return PARTIAL: not failure, …
GATE v1.3: New Controls for Shadow Agents, Data Quality, and Model Drift
4 minutes
GATE v1.3 adds three new controls and a CLI conformance runner to the Governed Agent Trust Environment, closing three assumptions that …