Agentic glossary
132 terms for product, business and engineering teams, in 8 categories. Pick a card for its full definition.
Foundation
Context
Context Window
LLM
Large Language Model
PE
Prompt Engineering
Reasoning Effort
Structured Output
Token
Agent readiness
Accessibility Tree
ARD
Agentic Resource Discovery
AGENTS.md
AI Catalog
AEO
Answer Engine Optimization
Freshness
Content Freshness
Formats
Content Negotiation
Provenance
Content Provenance
Content Signals
Content-use Preferences
robots.txt
Crawler Rules
DNS-AID
DNS for AI Discovery
Ground
Grounding
JSON-LD
JavaScript Object Notation for Linked Data
llms.txt
Markdown
NLWeb
RSL
Really Simple Licensing
.well-known
Well-Known URI
Sitemap
XML Sitemap
Data & integration
API
Application Programming Interface
Arazzo
CLI
Command-Line Interface
Webhooks
Event Notifications
ETL/ELT
Extract, Transform, Load
GraphQL
OpenAPI
OpenAPI Specification
Pagination
Paged Results
PIM/MDM
Product Info & Master Data Management
API Catalog
RFC 9727 API Catalog
Schema
Schema / Ontology / Taxonomy
SDK
Software Development Kit
Auth & identity
auth.md
Agent Registration Guidance
Bearer Token
CIMD
Client ID Metadata Document
DID
Decentralized Identifier
OAuth
Delegated Authorization
DPoP
Demonstrating Proof of Possession
DCR
Dynamic Client Registration
ID-JAG
Identity Assertion JWT Authorization Grant
Identity Proxy
JWKS
JSON Web Key Set
JWT
JSON Web Token
M2M
Machine-to-Machine Authorization
OBO
On-Behalf-Of Delegation
OIDC
OpenID Connect
Scopes
Permission Scopes
PKCE
Proof Key for Code Exchange
PRM
Protected Resource Metadata
Replay Protection
Token Exchange
Bot Auth
Web Bot Auth
Workload Identity
WIMSE
Workload Identity in Multi-Service Environments
Agent infrastructure
ANP
Agent Network Protocol
Plugins
Agent Plugins
Skills
Agent Skills
AgentCard
AAIF
Agentic AI Foundation
AGNTCY
Agent
AI Agent
Capabilities
Capability Declaration
Code Mode
Code Execution Mode
Council
Council Pattern
Defense in Depth
Dry-Run
Dry-Run Mode
Dynamic Agent
Dynamic Agent (Runtime Configuration)
Dynamic Tool Loading
Fan-Out/Fan-In
Fan-Out / Fan-In
Handoff
Handoff (Routing)
MCP Apps
Interactive Views in MCP Clients
SEP
MCP Spec Enhancement Proposal
Annotations
MCP Tool Annotations
Mid-Run Steering
MCP
Model Context Protocol
Model Routing
OASF
Open Agent Schema Framework
Orch.
Orchestration
Subagent
Supervisor
Supervisor Pattern
Swarm
Swarm (Peer-to-Peer Handoff)
Tools
Tool / Function Calling
Tool Curation
WebMCP
Web Model Context Protocol
Memory & knowledge
BM25
Context Poisoning
Context Rot
Embed
Embedding
KG
Knowledge Graph
Message History
Observational Memory
Procedural Memory
Rerank
Reranking
RAG
Retrieval-Augmented Generation
Semantic Recall
VectorDB
Vector Database
Working Memory
Ops & lifecycle
Evals
Agent Evaluations
A2A
Agent-to-Agent
Circuit Breaker
CUJ
Critical User Journey
Durable
Durable Execution
EDD
Eval-Driven Development
Taxonomy
Failure-Mode Taxonomy
SFT
Fine-Tuning
Guard
Guardrails
HITL
Human-in-the-Loop
Infer
Inference
Trifecta
Lethal Trifecta
LLMOps
LLM Operations
LLM-as-Judge
OWASP LLM Top 10
OWASP Top 10 for LLM Applications
pass@k
Pass at k
Injection
Prompt Injection
Red-Teaming
Rate limits
Request Limits
Problem Details
RFC 9457 Problem Details
Idempotency
Safe Repeated Requests
Shadow Eval
Shadow Evaluation
Sandbox
Test Environment
Traces
Payments
AP2
Agent Payments Protocol
ACP
Agentic Commerce Protocol
x402
HTTP Payment Protocol
MPP
Machine Payments Protocol
Mandate
Payment Mandate
UCP
Universal Commerce Protocol
The same definitions, grouped by category with links to the guide for each term, are in the docs glossary.