AGENTIC AI GLOSSARY · GUIDED LEARNING · REVIEWED SOURCES

Agentic AI Glossary

Understand agentic AI without fighting the vocabulary. Ask a question in everyday language, look up one of 721 reviewed concepts, or follow a guided path from foundations to governed multi-agent systems.

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721reviewed concepts
8 tracks32 guided lessons
Local MiniLMsame-origin proposals
Receiptsdeterministic replay
Filters & starting pointsCategory, entry type, lifecycle, and core concepts
Choose one clear starting point
Inspect how this answer was selected CATS route, Tier-S admission, candidate evidence, receipt, and replay
CATS route T0 · Exact identity
Query family General discovery
Executed query Browse all terms
Typed filters None
Why this path CATS is preparing the least expensive qualified path.
Active engine Deterministic fallback
T0Exactwaiting
T1Ready pathwaiting
T2Lexicalwaiting
T3Graphwaiting
T4Wasmwaiting
T5Cachewaiting
T6Semanticwaiting
T7Explainwaiting
Inspect ranking See the typed plan, corrections, field evidence, scores, and receipt
Original question
None
Normalized input
none
Executed query
browse all terms
Family
General discovery
Corrections
None
Alias expansion
None
Deterministic rewrite
None
Semantic coverage
4792 questions · 4026 alternate phrases
Filters
None
CATS route
T0 · Exact identity
Executor
Deterministic fallback while CATS prepares
Engine
Deterministic JavaScript
Eligible paths
T0
Withheld paths
T1–T7 until qualified
Cache
No sealed result reused
CATS configuration
waiting
Tier-S verification
Waiting to shadow-check the selected route.
Receipt
waiting
Top admitted candidatesStable score and visible evidence
    Agentic AI & Tools

    Pydantic AI

    industry
    PydanticAI
    pydantic-ai
    Entry type
    framework
    Publisher
    Pydantic
    Lifecycle
    current
    Reviewed
    2026-08-14
    Delivery
    Open-source Python framework

    Why it matters

    It brings Pydantic's data-validation approach into agent applications, making type contracts and structured outputs prominent parts of the design.

    Example

    A team evaluating Pydantic AI can compare its delivery model, lifecycle, tools, memory, approvals, and evaluation surface with OpenAI Agents SDK before choosing an architecture.

    Common confusion

    Including Pydantic AI in this learning center does not mean OverLift uses, endorses, or treats every advertised capability as independently verified.

    How OverLift uses it

    The Agentic AI Glossary catalogs Pydantic AI as a source-reviewed ecosystem profile. OverLift may compare its role, lifecycle, and capabilities, but the product receives no authority over evidence, policy, execution, or glossary receipts.

    Official and reviewed sources

    Explore the technical detail Formal definition, lifecycle, use boundaries, capabilities, prerequisites, and comparisons

    Technical definition

    Pydantic AI provides typed agents, dependency injection, tools, structured result validation, streaming, model abstraction, graph workflows, durable execution integrations, evaluation, and Logfire observability.

    Where it appears

    Agentic AI Glossary · Ecosystem Agentic AI Glossary · Compare Kernel proof

    Lifecycle and review boundary

    Current public product or framework; recheck official release notes before major adoption decisions.

    Use it when

    Use it when a Python application benefits from strong typing, validated structured outputs, dependency injection, and a comparatively compact agent framework.

    Avoid or reconsider when

    Reconsider it when the primary runtime language is not Python or when a managed enterprise platform is required instead of an application library.

    Capabilities named by official sources

    typed agents dependency injection validated outputs tools graphs evaluation

    Common confusions

    OpenAI Agents SDK LangChain

    Learn these first

    Compare with

    See this architecture working

    Move from one definition into Sean Findley’s product and engineering proof.

    LEARN THE SECURITY BOUNDARY

    Retrieval can inform an agent. Retrieved content cannot grant it authority.

    The glossary demonstrates the same OverLift rule it teaches: exact and semantic retrieval may propose useful evidence, but source eligibility, permissions, capability admission, deterministic fallback, Tier-S verification, receipts, and replay decide what the product may trust.

    PRIVACY What information leaves the chosen boundary?

    Prefer browser-local, same-origin, or offline processing; disclose only the approved evidence a remote service actually needs.

    SECURITY What can this code or agent reach, call, change, or persist?

    Use worker and WebAssembly containment, explicit imports, typed tools, deadlines, allowlists, and fail-closed defaults.

    AUTHORITY What is allowed to become official truth or state?

    Keep identity, permissions, policy, approval, exact execution, verification, receipts, and replay outside probabilistic control.

    Foundational research sources See foundational sources; every ecosystem profile also carries its own official source record

    OpenAI Agents SDK

    OpenAI

    Agents, tools, handoffs, guardrails, sessions, tracing, and human review.

    Model Context Protocol

    MCP Project

    Hosts, clients, servers, tools, resources, prompts, elicitation, and tasks.

    Agent2Agent Protocol

    A2A Project

    Agent Cards, tasks, messages, parts, artifacts, streaming, and agent discovery.

    Agentic retrieval

    Microsoft

    Knowledge bases, knowledge sources, query planning, subqueries, and citations.

    LangGraph persistence

    LangChain

    Threads, checkpoints, durable execution, interrupts, and time-travel debugging.