Specification catalogue

Find the structure your AI needs.

A live registry of versioned meta-model specifications. Search by family, category, industry, domain, name or tags; storage formats and interfaces remain independent.

The catalogue holds the whole Thing Registry: every registered thing an agent might meet, marked TODO until its governed specification is written. AISMM, PLMM and prior World Model assemblies remain here as examples.
205 981 meta-models Priority first
Thing RegistryResearch draft

fairy tale

vr.tr.fairy-tale

Let an agent explain fairy tales as a genre, relay classification systems and major collections, describe national traditions and scholarly interpretations with attribution, and d…

Information and virtual systems INF.MED
Thing RegistryResearch draft

farmer

vr.tr.farmer

Let an agent handle farmers as an occupation by type of farming, tenure, support, safety and well-being.

Society, people and institutions SOC.PER
Thing RegistryResearch draft

fasting

vr.tr.fasting

Let an agent handle fasting by purpose, rules, duration and health considerations, respect religious practice, and direct medical questions to professionals.

Activities and processes ACT.PRC
Thing RegistryGenerated draft

Gujarati

vr.tr.gujarati
Information and virtual systems INF.MED
Thing RegistryResearch draft

gunpowder

vr.tr.gunpowder

Enable an AI agent to identify material registered as gunpowder, assess its documented condition and hazards, and determine which actions require restriction or qualified review.

Physical world and living systems PHY.MAT
Thing RegistryResearch draft

ion

vr.tr.ion

Let an agent explain ions and their formation, naming and behaviour, support chemistry problem solving, and relate ions to biology, materials and technology.

Physical world and living systems PHY.OBJ
Thing RegistryResearch draft

marketing

vr.tr.marketing

Let an agent handle marketing by channel, method, measurement and regulation, including consumer protection and data privacy rules.

Activities and processes ACT.ACT
Thing RegistryResearch draft

prophet

vr.tr.prophet

Let an agent describe prophets and prophethood across traditions accurately and respectfully with attribution, follow representation and naming norms, and separate loose and secul…

Society, people and institutions SOC.PER
Thing RegistryResearch draft

Quechua

vr.tr.quechua

Let an agent describe the Quechua languages, their classification, varieties and status, relay speaker figures with sources, explain grammar and writing in outline, present langua…

Information and virtual systems INF.MED
Thing RegistryResearch draft

reason

vr.tr.reason

Let an agent explain reason as a cognitive process and its forms, describe how reasoning is studied and where it fails, support sound reasoning and argument, and separate the sens…

Activities and processes ACT.PRC
Thing RegistryResearch draft

rectangle

vr.tr.rectangle

Let an agent explain the rectangle and its properties, support calculations of area, perimeter and diagonals, describe uses in design, computing and construction, and support lear…

Cross-cutting context XCT.QLT
Thing RegistryResearch draft

screw

vr.tr.screw

Enable an AI agent to recognise a screw, assess its compatibility and condition, and determine whether and how it may be installed, adjusted, removed or replaced.

Physical world and living systems PHY.OBJ
Thing RegistryResearch draft

Sesamum indicum

vr.tr.sesamum-indicum

Enable an AI agent to identify Sesamum indicum, assess its development and condition, and justify cultivation, propagation or harvest decisions from recorded evidence.

Physical world and living systems PHY.LIV
Thing RegistryGenerated draft

Silesian

vr.tr.silesian
Information and virtual systems INF.MED
Thing RegistryResearch draft

spring

vr.tr.spring

Let an agent handle springs by location, type, water quality, protection and visiting, including safety of drinking and bathing.

Physical world and living systems PHY.PLC
Thing RegistryResearch draft

synagogue

vr.tr.synagogue

Let an agent describe synagogues respectfully by community, tradition, architecture, history and visiting, attributing religious meaning to Jewish sources and avoiding disclosure …

Physical world and living systems PHY.BLT
Thing RegistryResearch draft

termite

vr.tr.termite

Let an agent explain termites and their biology, relay colony organisation, ecology and pest management from entomological and pest control sources, describe invasive species, and…

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

tram

vr.tr.tram

Let an agent explain trams and their kinds, support using tram networks, describe tram technology and history, and relate trams to urban transport planning.

Physical world and living systems PHY.OBJ
Thing RegistryGenerated draft

Uyghur

vr.tr.uyghur
Information and virtual systems INF.MED
Thing RegistryResearch draft

Uyghurs

vr.tr.uyghurs

Let an agent describe the Uyghur people, their language, history and culture with attribution, present the contested situation in Xinjiang neutrally with reports and government po…

Society, people and institutions SOC.PER
Thing RegistryResearch draft

Vedas

vr.tr.vedas

Enable an AI agent to identify Vedic material within vr.tr.vedas, assess its attestation and transmission state, and determine appropriate citation, comparison, interpretation and…

Information and virtual systems INF.MED
Thing RegistryResearch draft

volume

vr.tr.volume

Let an agent handle volume with unit, method, conditions and domain definitions, and avoid confusing volume with capacity or mass.

Cross-cutting context XCT.QTY
Thing RegistryResearch draft

wood

vr.tr.wood

the hard fibrous lignified substance under the bark of trees

Physical world and living systems PHY.MAT
Thing RegistryGenerated draft

Zulu

vr.tr.zulu
Information and virtual systems INF.MED
Thing RegistryResearch draft

Afroasiatic

vr.tr.afroasiatic

Let an agent handle Afroasiatic by branches, member languages, classification debates, speakers and resources, using self-designations such as Amazigh and attributing debated view…

Information and virtual systems INF.MED
Thing RegistryResearch draft

alloy

vr.tr.alloy

Let an agent handle alloys by composition, designation, properties, uses and safety.

Physical world and living systems PHY.MAT
Thing RegistryResearch draft

autism

vr.tr.autism

Let an agent explain autism respectfully within medical and neurodiversity frameworks, use language preferred by autistic people, describe assessment and support with attribution,…

Cross-cutting context XCT.STA
Thing RegistryResearch draft

calculator

vr.tr.calculator

Let an agent identify calculator types and their capabilities, explain how they work and what they can and cannot compute, relay examination rules and standards, and separate calc…

Physical world and living systems PHY.OBJ
Thing RegistryResearch draft

chromosome

vr.tr.chromosome

Let an agent explain chromosomes in general biological terms and point to genetic services for testing and counselling, without interpreting personal results.

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

Dalai Lama

vr.tr.dalai-lama

Enable an AI agent to identify whom a Dalai Lama reference denotes, assess the evidence and limits of attributed authority, and determine appropriate actions involving that person…

Society, people and institutions SOC.PER
Thing RegistryResearch draft

divorce

vr.tr.divorce

Let an agent explain divorce as a legal and social institution, relay legal frameworks and statistics from official sources by jurisdiction, describe religious forms with attribut…

Activities and processes ACT.ACT
Thing RegistryResearch draft

engine

vr.tr.engine

Let an agent explain what an engine is and how engines are classified, distinguish engines from motors and other machines, relay principles of major engine types, and separate the…

Physical world and living systems PHY.OBJ
Thing RegistryResearch draft

finance

vr.tr.finance

Let an agent explain finance as a field and its branches, describe institutions, markets and regulation, support financial literacy in general terms, and route personal financial …

Information and virtual systems INF.KNW
Thing RegistryResearch draft

freedom of speech

vr.tr.freedom-of-speech

Let an agent handle freedom of speech by legal source, scope, limits and country situation, neutrally and with sourced reports.

Cross-cutting context XCT.TME
Thing RegistryResearch draft

gasoline

vr.tr.gasoline

Enable an AI agent to recognise gasoline, assess the condition and suitability of a particular quantity, and determine which uses or handling actions are supported by available ev…

Physical world and living systems PHY.MAT
Thing RegistryResearch draft

learning

vr.tr.learning

Let an agent handle learning by type, goal, method, evidence and assessment, and separate human learning from machine learning.

Activities and processes ACT.ACT
Thing RegistryResearch draft

mass density

vr.tr.mass-density

Let an agent explain density by definition, measurement, typical values and applications such as buoyancy and materials selection.

Cross-cutting context XCT.QLT
Thing RegistryResearch draft

mushroom

vr.tr.mushroom

Let an agent handle mushrooms by species, identification caution, edibility, cultivation and poisoning response, never confirming wild mushrooms as safe to eat from descriptions o…

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

navel

vr.tr.navel

Let an agent explain the navel, relay development, anatomy, variations, common conditions and cultural aspects from anatomy and health sources, route warning signs, flag the gende…

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

protist

vr.tr.protist

Let an agent explain protists as an informal grouping, describe major lineages and current classification, relay their ecological, medical and economic significance, and distingui…

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

ring

vr.tr.ring

Let an agent explain rings as jewellery and their kinds and meanings, relay history, materials and customs from jewellery and cultural sources, describe modern smart rings, and di…

Physical world and living systems PHY.OBJ
Thing RegistryResearch draft

soldier

vr.tr.soldier

Let an agent handle soldiers by force, rank, status and legal protections, and describe military matters neutrally without operational assistance.

Physical world and living systems PHY.LIV
Thing RegistryGenerated draft

Turkmen

vr.tr.turkmen
Information and virtual systems INF.MED
Thing RegistryResearch draft

allergy

vr.tr.allergy

Let an agent handle allergies by allergen, symptoms, emergency response, labelling and services, routing anaphylaxis to emergency help first and giving no diagnosis.

Information and virtual systems INF.KNW
Thing RegistryGenerated draft

Chechen

vr.tr.chechen
Information and virtual systems INF.MED
Thing RegistryResearch draft

clay

vr.tr.clay

Let an agent explain clay and its mineralogy, relay kinds, properties and uses from geological and materials sources, describe ceramic and industrial applications, and distinguish…

Physical world and living systems PHY.MAT
Thing RegistryResearch draft

concrete

vr.tr.concrete

Let an agent explain concrete and its composition, relay types, properties and standards from engineering sources, describe production and environmental impact, and distinguish co…

Physical world and living systems PHY.MAT
Thing RegistryResearch draft

drought

vr.tr.drought

Let an agent explain drought and its types, relay monitoring, impacts and management from meteorological and water agencies, describe climate change links with attribution, and ro…

Cross-cutting context XCT.STA
Thing RegistryResearch draft

electric charge

vr.tr.electric-charge

Let an agent explain electric charge as a physical quantity, relay its units, constants and laws from SI and reference sources, distinguish it from current, voltage and related qu…

Cross-cutting context XCT.QLT
Thing RegistryResearch draft

emperor

vr.tr.emperor

Let an agent explain the title of emperor by tradition and period, research specific emperors with sourced data, and describe succession, titles and legacy neutrally.

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

feudalism

vr.tr.feudalism

Enable an agent to assess whether feudalism is a defensible description of a historically bounded social order, record its operative relationships and judge which interpretations …

Physical world and living systems PHY.OBJ
Thing RegistryResearch draft

Foeniculum vulgare

vr.tr.foeniculum-vulgare

Enable an AI agent to recognise Foeniculum vulgare, assess its growth and reproductive state, and decide whether cultivation, harvest, propagation or containment is appropriate.

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

forehead

vr.tr.forehead

Enable an agent to recognise a forehead, record its observable form and condition, and determine which observations or interactions are appropriate within the available evidence a…

Physical world and living systems PHY.OBJ
Thing RegistryResearch draft

fossil

vr.tr.fossil

Let an agent explain fossils and how they form, relay kinds, dating and classification from palaeontology sources, describe fossil embryos, insect fossils and egg parataxonomy, an…

Physical world and living systems PHY.OBJ
Thing RegistryGenerated draft

Hausa

vr.tr.hausa
Information and virtual systems INF.MED
Thing RegistryResearch draft

heron

vr.tr.heron

Enable an AI agent to recognise a heron, assess its condition and ecological situation, and choose observation or intervention appropriate to the evidence.

Physical world and living systems PHY.LIV
Thing RegistryResearch draft

Hindustani

vr.tr.hindustani

Let an agent explain Hindustani as the shared basis of Hindi and Urdu, relay its history, varieties and speaker numbers with sources, and present the politics of the Hindi-Urdu di…

Information and virtual systems INF.MED
Thing RegistryResearch draft

hip-hop

vr.tr.hip-hop

Let an agent handle hip-hop by element, subgenre, history, artists and rights, crediting its origins in Black and Latino communities.

Information and virtual systems INF.MED
Thing RegistryResearch draft

Holy Trinity

vr.tr.holy-trinity

Let an agent explain the doctrine of the Trinity and its history with theological and scholarly attribution, describe how it is represented in art, present nontrinitarian views ne…

Cross-cutting context XCT.QLT
Thing RegistryResearch draft

International Workers' Day

vr.tr.international-workers-day

Enable an AI agent to recognise International Workers' Day, assess how it is observed in a specified place and year, and determine which commemorative or coordination actions are …

Activities and processes ACT.ACT