# Hugues Clouâtre - AI & Platform Engineering

> AI and platform engineering insights from an AWS veteran and technology executive. Practical guides for CTOs and engineering leaders.

## Tools

- [search_posts](https://clouatre.ca/search): Search blog posts by keyword

## Agent Discovery

- [API catalog](https://clouatre.ca/.well-known/api-catalog): RFC 9727 linkset -- all machine-readable endpoints
- [Agent skills](https://clouatre.ca/.well-known/agent-skills/index.json): Available tools for AI agents
- [MCP server card](https://clouatre.ca/.well-known/mcp.json): Agent capability declaration
- [RSS feed](https://clouatre.ca/rss.xml): Subscribe to new posts
- [Sitemap](https://clouatre.ca/sitemap-index.xml): Full site structure
- [Knowledge graph](https://clouatre.ca/knowledge-graph.json): Typed post graph -- clusters, citation edges, reading chains

## Optional

Low-priority pages agents may skip:
- [Tags index](https://clouatre.ca/tags): Tag browsing UI (redundant with blog post list above)
- [Search](https://clouatre.ca/search): Client-side search UI (use search_posts tool in ## Tools instead)

## Concept Index

- governance-oversight: ai-sdlc-governance-stack, ai-approval-gates, ai-observability-gaps, sre-ai-agents-production, zero-downtime-dns-migration, ai-adoption-engineering, decision-frameworks-ai-delivery
- multi-agent-architecture: orchestrating-ai-agents-subagent-architecture, context-engineering-multi-agent-reliability, ai-sdlc-governance-stack, ai-agents-legacy-roi, ai-augmented-cicd, prompt-repetition-agent-evaluation
- security-supply-chain: ai-supply-chain-attack-vectors, ai-augmented-cicd, ai-sdlc-governance-stack, ai-approval-gates
- cost-roi: ai-agents-legacy-roi, rag-legacy-systems, open-weights-structured-output-cost, decision-frameworks-ai-delivery
- evaluation-reliability: prompt-repetition-agent-evaluation, ai-observability-gaps, sre-ai-agents-production, open-weights-structured-output-cost, decision-frameworks-ai-delivery
- devops-implementation: ai-assisted-development, ai-augmented-cicd, zero-downtime-dns-migration, ai-sdlc-governance-stack, context-engineering-multi-agent-reliability
- legacy-modernization: ai-agents-legacy-roi, rag-legacy-systems
- goose-subagent-tooling: orchestrating-ai-agents-subagent-architecture, ai-assisted-development, context-engineering-multi-agent-reliability, ai-sdlc-governance-stack

## Reading Chains

- ai-governance-primer (Understand AI governance from first principles)
  - [AI Adoption in Engineering: Breaking the 50% Plateau](https://clouatre.ca/posts/ai-adoption-engineering/): foundational
  - [AI Approval Gates: Engineering Oversight at Machine Speed](https://clouatre.ca/posts/ai-approval-gates/): prerequisite for Why Your AI Agent Failed in Production
  - [Why Your AI Agent Failed in Production](https://clouatre.ca/posts/ai-observability-gaps/): prerequisite for SRE for AI Agents: Error Budgets, Trust, and 90 Trials
  - [SRE for AI Agents: Error Budgets, Trust, and 90 Trials](https://clouatre.ca/posts/sre-ai-agents-production/): prerequisite for AI SDLC Governance: Three Layers for Engineering Leaders
  - [AI SDLC Governance: Three Layers for Engineering Leaders](https://clouatre.ca/posts/ai-sdlc-governance-stack/): prerequisite for AI Delivery Decision Frameworks: Type 1, Type 2, DACI
  - [AI Delivery Decision Frameworks: Type 1, Type 2, DACI](https://clouatre.ca/posts/decision-frameworks-ai-delivery/): prerequisite for AI-Governed DNS Migration Without Maintenance Windows
  - [AI-Governed DNS Migration Without Maintenance Windows](https://clouatre.ca/posts/zero-downtime-dns-migration/): capstone
- evaluation-methodology-chain (Learn evidence-based agent evaluation methodology)
  - [AI Delivery Decision Frameworks: Type 1, Type 2, DACI](https://clouatre.ca/posts/decision-frameworks-ai-delivery/): foundational
  - [What a Null Result Taught Us About AI Agent Evaluation](https://clouatre.ca/posts/prompt-repetition-agent-evaluation/): prerequisite for Open-Weight LLMs Reach the Structured Output Quality Ceiling
  - [Open-Weight LLMs Reach the Structured Output Quality Ceiling](https://clouatre.ca/posts/open-weights-structured-output-cost/): capstone
- security-chain (Understand the AI security threat-to-control pipeline)
  - [AI Supply Chain Attacks: New Vectors in Dependencies](https://clouatre.ca/posts/ai-supply-chain-attack-vectors/): foundational
  - [AI-Augmented CI/CD: Shift Left Security Without Risk](https://clouatre.ca/posts/ai-augmented-cicd/): prerequisite for AI SDLC Governance: Three Layers for Engineering Leaders
  - [AI SDLC Governance: Three Layers for Engineering Leaders](https://clouatre.ca/posts/ai-sdlc-governance-stack/): capstone

## Blog Posts

- [AI SDLC Governance: Three Layers for Engineering Leaders](https://clouatre.ca/posts/ai-sdlc-governance-stack) [audio]: A three-layer governance stack (comprehension, review gate, and observability) gives engineering leaders measurable control over AI-generated code volume.
- [How Does Context Engineering Drive Multi-Agent Reliability?](https://clouatre.ca/posts/context-engineering-multi-agent-reliability) [audio]: Context engineering turns AI context into infrastructure, preventing the accumulation, starvation, and leakage failures that undermine multi-agent reliability.
- [Open-Weight LLMs Reach the Structured Output Quality Ceiling](https://clouatre.ca/posts/open-weights-structured-output-cost) [audio]: Open-weight models now match closed-source on structured output at 95x lower cost. Pre-registered blind eval, 30 samples, zero quality delta.
- [AI Approval Gates: Engineering Oversight at Machine Speed](https://clouatre.ca/posts/ai-approval-gates) [audio]: AI approval gates: reversibility-tiered human-in-the-loop design with four health metrics that prevent reviewer atrophy at machine speed.
- [AI Adoption in Engineering: Breaking the 50% Plateau](https://clouatre.ca/posts/ai-adoption-engineering) [audio]: Purpose-built AI tooling cuts per-task cost 21-68%. Three-cohort model and four-phase operating framework for engineering leaders past the 50% adoption plateau.
- [AI Delivery Decision Frameworks: Type 1, Type 2, DACI](https://clouatre.ca/posts/decision-frameworks-ai-delivery) [audio]: Misclassifying reversible decisions costs more than the decision itself. Four frameworks unblock AI delivery: Type 1/Type 2, Eisenhower, DACI, and PMBOK.
- [SRE for AI Agents: Error Budgets, Trust, and 90 Trials](https://clouatre.ca/posts/sre-ai-agents-production) [audio]: Can an AI agent predict scope without hallucinating? We ran 90 trials. It added 1.7 phantom files per change. Error budgets and trust ladders are the gate.
- [What a Null Result Taught Us About AI Agent Evaluation](https://clouatre.ca/posts/prompt-repetition-agent-evaluation) [audio]: We tested prompt repetition on 20 parallel AI agents. Ceiling effects dominated both experiments. The null result is a finding about evaluation design.
- [Why Your AI Agent Failed in Production](https://clouatre.ca/posts/ai-observability-gaps) [audio]: Why your AI agent failed: missing decision provenance, not metrics. The 3 observability gaps traditional monitoring won't catch.
- [RAG for Legacy Systems: 7,432 Pages to 3s Answers](https://clouatre.ca/posts/rag-legacy-systems) [audio]: 7,432 pages to 3-second answers. Production RAG for legacy systems with model-agnostic reranking. No vendor lock-in, validated across 4 LLM families.
- [AI Agents in Legacy Systems: ROI Without Modernization](https://clouatre.ca/posts/ai-agents-legacy-roi) [audio]: Layer AI agents over legacy systems without modernization. 30-80% productivity gains in 3-6 months. Patterns that bypass technical debt.
- [AI Supply Chain Attacks: New Vectors in Dependencies](https://clouatre.ca/posts/ai-supply-chain-attack-vectors) [audio]: Slopsquatting: attackers register packages AI hallucinates. XZ Utils showed the stakes. A framework to assess your AI supply chain exposure.
- [Orchestrating AI Agents: A Subagent Architecture](https://clouatre.ca/posts/orchestrating-ai-agents-subagent-architecture) [audio]: 50% cost reduction with subagent architecture for AI coding. Capable models for planning, fast models for building. Real metrics from Goose.
- [AI-Augmented CI/CD: Shift Left Security Without Risk](https://clouatre.ca/posts/ai-augmented-cicd) [audio]: AI code review in CI/CD without prompt injection. Defensive patterns: three security tiers, isolated execution, no secrets in prompts.
- [AI-Assisted Development: The Accountability Layer](https://clouatre.ca/posts/ai-assisted-development) [audio]: AI made writing code faster. Without governance controls, it makes reviewing and understanding code slower. The accountability layer is the structural response.
- [AI-Governed DNS Migration Without Maintenance Windows](https://clouatre.ca/posts/zero-downtime-dns-migration) [audio]: Programmatic pre-validation eliminates the weekend window from DNS migrations. Full platform migration: 2 hours, business hours, zero downtime.

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For full post content, see: https://clouatre.ca/llms-full.txt