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Concepts

Shared vocabulary for AI infrastructure.

Definitions, comparisons, and mental models that stay useful as the tools change, organized into three collections: gateway & routing, capture & observability, and skills & organizational learning. Each pillar page maps its cluster; start there.

Start here

Foundations.

Interactive learning labs, in series. Learn the primitives by doing; bring the mental model to any agent system.

Featured Pillar

AI Gateway: What It Is, How It Works, and Why Platform Teams Need One.

Normally an AI tool sends its requests straight to a model provider. An AI gateway puts one company-controlled endpoint in between. That single change gives a platform team one place to choose models, enforce rules, keep records, and track cost. This pillar explains the gateway from the first request through the reference architecture, and maps the rest of the cluster.

Read pillar →Updated October 6, 2026
AI GatewayPlatform EngineeringModel RoutingPillar

In this cluster

Architecture

Where a gateway sits in the request path, and what the data plane underneath it does.

  1. 01LLM Proxy: What It Is and How It Works

Operate

Running a gateway as shared infrastructure: governance, cost, residency, and rollout.

  1. 11Enterprise AI Gateway
  2. 12AI Gateway Observability

Evaluate

Proving routing holds quality, catching drift, and locating your team on the ladder.

  1. 16Model Routing Evals: Proving a Router Before You Trust It
  2. 17Model Routing Drift

Compare

Where the AI gateway ends and its neighbors (proxies, API gateways, MCP gateways) begin.

  1. 19Semantic Gateway vs Inference Gateway
  2. 20AI Gateway vs LLM Proxy

Capture & Observability.

Recording what agents actually did: session capture, replay, and telemetry.

ConceptUpdated October 6, 2026

Telemetry for Agents

A complete behavioral record so you can answer what an agent saw, what it decided, and why—not just whether a request failed.

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TelemetryAgents
ConceptUpdated August 26, 2026

Agent Observability

Telemetry captures what agents do. Observability makes that record interpretable and actionable. Both are essential when agents run in production.

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ObservabilityAgents

Skills & Organizational Learning.

Turning captured sessions into reusable skills and shared team knowledge.

ConceptUpdated September 1, 2026

Skill Extraction

Every working agent session contains a solved problem. Skill extraction is the step that lifts that solution out of the session record and into a skill a team can review, edit, and reuse.

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SkillsSkill Extraction
ConceptUpdated September 1, 2026

Skill Library

One extracted skill helps one run. A skill library is what turns a pile of extractions into something a team can search, review, version, and rely on.

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SkillsSkill Library
ConceptUpdated July 28, 2026

Skill Invocation

A library full of good skills is worthless if the agent never loads the right one. Invocation is the matching step that connects a task to the skill that solves it.

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SkillsSkill Invocation
ConceptUpdated August 26, 2026

How to Build a Team Skill Library From Real AI Usage

Instead of asking what your agents should know how to do, ask what they have already done successfully. A skill library built from captured sessions keeps the real procedures, decision paths, and fixes intact — and compounds instead of decaying.

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SkillsSkill Library
ConceptUpdated October 6, 2026

Skill Versioning and Drift

A skill is only reliable under the assumptions it was validated against. When those assumptions change (tools, models, inputs, policy, or the skill itself), it can stop producing its intended outcome without ever failing loudly.

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SkillsSkill Drift
ConceptUpdated October 1, 2026

Learning from Past AI Agent Sessions

Every past AI agent session contains evidence about what worked and what did not. Learning from that evidence is the step between capturing sessions and improving future runs.

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SessionsLearning
ComparisonUpdated September 4, 2026

Agent Skills vs Memory, RAG, and Fine-Tuning

Fine-tuning changes the model. RAG retrieves content into context. Memory recalls previous interactions. Skills package procedural knowledge an agent can activate. The real question is what kind of improvement you need to make durable, rather than which one to choose.

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SkillsComparison
ConceptUpdated September 1, 2026

Continuous Agent Improvement

A feedback loop: capture relevant sessions, analyze patterns, extract reusable artifacts, apply them to later runs, and measure whether outcomes improve. The model can stay the same. The system around it gets better.

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ImprovementAgents
ConceptUpdated September 1, 2026

Team-Shared Agent Knowledge

One engineer's breakthrough session is a dead artifact until the team can search it, replay it, and invoke the skill extracted from it. Team-shared knowledge is the infrastructure that makes that possible.

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TeamsKnowledge Sharing
ConceptUpdated September 8, 2026

AI Agent Institutional Knowledge

Every solved problem lives somewhere. For most teams it lives only in the engineer who solved it. AI agent institutional knowledge is the practice of making accumulated organizational learning durable, searchable, and reusable across every future agent session.

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KnowledgeTeams

Platform & Infrastructure.

The teams and substrate that run agent systems in production.

ConceptUpdated August 20, 2026

Agent Infrastructure

Models are one layer; infrastructure is what makes agents repeatable, safe, and operable at scale.

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InfrastructureAgents

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