Reference

Agent Service Contract Ontology

Formal contracts for governed AI agents in a Knowledge Space. Grounded on PROV-O (agent provenance, attribution), DCAT (service description, discovery), ODRL (policies, mandates), and SHACL (I/O validation). v0.5 removes the holonic OWL apparatus (ADR-052); doctrine retained at narrative level in bra0-principles.md.

Namespace: https://schema.bra0.org/agent-service-contract#
Prefix: asc:
Version: 0.5.0
License: https://creativecommons.org/licenses/by-sa/4.0/
Created: 2026-03-25
Classes: 43
Properties: 83
Source: ontologies/governance/agent-service-contract.ttl

Classes (43)

URI	Label	Description	Superclass
asc:AgentService	Agent Service	A governed agent with a formal service contract. Grounded on PROV-O (software agent provenance) and DCAT (service description) per ADR-052 v0.5.0. Governance (mandate, autonomy level, policies) is expressed via ODRL and attached to each agent instance.	prov:SoftwareAgent, dcat:DataService
asc:AntiPattern	Anti-Pattern	A known inefficiency pattern with a documented alternative. Append-only registry.	---
asc:AntiPattern	Anti-patron	A known inefficiency pattern with a documented alternative. Append-only registry.	---
asc:FunctionalBloc	Bloc fonctionnel	SI urbanization bloc (depth 3 of 3) — atomic element. Maps 1:1 to a capability. Urbanization invariant: one canonical pattern per bloc; redundant blocs are violations.	---
asc:BootstrapIdentity	Bootstrap Identity	Agent persona and operating instructions injected at session start: name, emoji, soul prompt, tool notes.	---
asc:BreakingChangeType	Breaking Change Type	A classification of schema modifications by their impact on existing consumers. Breaking changes require human gate; non-breaking changes may proceed at L2.	---
asc:Capability	Capability	A capability exercised by an agent, linked to the Capability Map (C1-C8).	---
asc:Capability	Capacité	A capability exercised by an agent, linked to the Capability Map (C1-C8).	---
asc:ComputeTier	Compute Tier	Resource allocation tier (T0=Manual to T5=Ollama MacBook).	---
asc:Skill	Compétence	A prompt-based agent (e.g. OpenClaw SKILL.md). Session-scoped, injected into context at session start. Gated by env/bins/config/OS requirements.	asc:AgentService
asc:RedundancyFinding	Constat de redondance	A finding from an urbanization review identifying functional overlap between two or more capabilities, agents, or implementations. Redundancy findings must be resolved: merge, deprecate, or justify the exception.	prov:Entity
asc:EfficiencyObservation	Efficiency Observation	A measured gain from an anti-pattern correction or process improvement. Proof of value.	prov:Entity
asc:ExecApproval	Exec Approval Rule	Per-agent execution approval rule: security mode (deny/allowlist/full), ask mode, glob patterns, safe bins.	---
asc:GatingRequirements	Exigences de filtrage	Load-time conditions for agent activation: required binaries, env vars, config keys, supported OS.	---
asc:Plugin	Extension	A code-based agent extension (e.g. OpenClaw plugin with TypeScript handler). Process-scoped, full SDK access, can register tools/hooks/channels.	asc:AgentService
asc:FunctionalBloc	Functional Bloc	SI urbanization bloc (depth 3 of 3) — atomic element. Maps 1:1 to a capability. Urbanization invariant: one canonical pattern per bloc; redundant blocs are violations.	---
asc:FunctionalQuartier	Functional Quartier	SI urbanization quartier (depth 2 of 3). Groups related capabilities within a zone under single-parent containment.	---
asc:FunctionalZone	Functional Zone	Top-level SI urbanization zone (depth 1 of 3). bra0's canonical zones: Control Plane, Semantic Layer, Data Plane, Bus Neural. Zones group quartiers that share cross-cutting concerns.	---
asc:GatingRequirements	Gating Requirements	Load-time conditions for agent activation: required binaries, env vars, config keys, supported OS.	---
asc:GraphInterface	Graph Interface	A service interface between an agent and a named graph. Typed as a dcat:DataService per ADR-052 v0.5.0. Carries the property scope and SPARQL pattern that define read/write access.	dcat:DataService
asc:BootstrapIdentity	Identité d'amorçage	Agent persona and operating instructions injected at session start: name, emoji, soul prompt, tool notes.	---
asc:GraphInterface	Interface de graphe	A service interface between an agent and a named graph. Typed as a dcat:DataService per ADR-052 v0.5.0. Carries the property scope and SPARQL pattern that define read/write access.	dcat:DataService
asc:Mandate	Mandat	The formal delegation from the human controller (mandant) to an agent (mandataire). Typed as an odrl:Policy per ADR-052 v0.5.0: it carries the permissions, prohibitions, and duties that bound the agent's reads, writes, and actions, plus temporal validity. Machine-validatable, SHACL-enforced. Only the mandant may create or modify a Mandate.	odrl:Policy
asc:Mandate	Mandate	The formal delegation from the human controller (mandant) to an agent (mandataire). Typed as an odrl:Policy per ADR-052 v0.5.0: it carries the permissions, prohibitions, and duties that bound the agent's reads, writes, and actions, plus temporal validity. Machine-validatable, SHACL-enforced. Only the mandant may create or modify a Mandate.	odrl:Policy
asc:EfficiencyObservation	Observation d'efficience	A measured gain from an anti-pattern correction or process improvement. Proof of value.	prov:Entity
asc:OntologyScope	Ontology Scope	The set of OWL/SHACL classes an agent is authorized to define, instantiate, or modify. Used with sh:targetClass to enumerate writable types.	---
asc:Plugin	Plugin	A code-based agent extension (e.g. OpenClaw plugin with TypeScript handler). Process-scoped, full SDK access, can register tools/hooks/channels.	asc:AgentService
asc:PluginHook	Plugin Hook	A lifecycle interception point registered by a plugin (e.g. before_tool_call, after_tool_call, before_agent_start). Hooks are the mechanism for runtime governance.	---
asc:PluginHook	Point d'interception	A lifecycle interception point registered by a plugin (e.g. before_tool_call, after_tool_call, before_agent_start). Hooks are the mechanism for runtime governance.	---
asc:ToolPolicy	Politique d'outillage	ODRL-based access control for agent tools. Maps to platform tool policy cascades (profiles, allow/deny lists, sandbox, sub-agent restrictions).	odrl:Policy
asc:SubagentPolicy	Politique de sous-agents	Governance constraints on sub-agent spawning: max depth, max children, concurrency, model, timeout.	---
asc:OntologyScope	Périmètre ontologique	The set of OWL/SHACL classes an agent is authorized to define, instantiate, or modify. Used with sh:targetClass to enumerate writable types.	---
asc:FunctionalQuartier	Quartier fonctionnel	SI urbanization quartier (depth 2 of 3). Groups related capabilities within a zone under single-parent containment.	---
asc:RedundancyFinding	Redundancy Finding	A finding from an urbanization review identifying functional overlap between two or more capabilities, agents, or implementations. Redundancy findings must be resolved: merge, deprecate, or justify the exception.	prov:Entity
asc:UrbanizationReview	Revue d'urbanisation	A formal review by the urbanization authority (architect) that validates: (1) no functional redundancy with existing blocs, (2) correct zone/quartier placement, (3) canonical implementation pattern compliance, (4) cross-cutting concern alignment. Every new capability MUST pass an urbanization review before creation.	prov:Activity
asc:ExecApproval	Règle d'approbation d'exécution	Per-agent execution approval rule: security mode (deny/allowlist/full), ask mode, glob patterns, safe bins.	---
asc:ServiceLevelAgreement	Service Level Agreement	Performance, cost, and quality bounds for an agent.	---
asc:AgentService	Service d'agent	A governed agent with a formal service contract. Grounded on PROV-O (software agent provenance) and DCAT (service description) per ADR-052 v0.5.0. Governance (mandate, autonomy level, policies) is expressed via ODRL and attached to each agent instance.	prov:SoftwareAgent, dcat:DataService
asc:Skill	Skill	A prompt-based agent (e.g. OpenClaw SKILL.md). Session-scoped, injected into context at session start. Gated by env/bins/config/OS requirements.	asc:AgentService
asc:SubagentPolicy	Sub-Agent Policy	Governance constraints on sub-agent spawning: max depth, max children, concurrency, model, timeout.	---
asc:ToolPolicy	Tool Policy	ODRL-based access control for agent tools. Maps to platform tool policy cascades (profiles, allow/deny lists, sandbox, sub-agent restrictions).	odrl:Policy
asc:UrbanizationReview	Urbanization Review	A formal review by the urbanization authority (architect) that validates: (1) no functional redundancy with existing blocs, (2) correct zone/quartier placement, (3) canonical implementation pattern compliance, (4) cross-cutting concern alignment. Every new capability MUST pass an urbanization review before creation.	prov:Activity
asc:FunctionalZone	Zone fonctionnelle	Top-level SI urbanization zone (depth 1 of 3). bra0's canonical zones: Control Plane, Semantic Layer, Data Plane, Bus Neural. Zones group quartiers that share cross-cutting concerns.	---

Object Properties (30)

URI	Label	Domain	Range
asc:sla	SLA	asc:AgentService	asc:ServiceLevelAgreement
asc:antiPattern	anti-pattern	asc:ServiceLevelAgreement	asc:AntiPattern
asc:autonomyLevel	autonomy level	asc:AgentService	rdfs:Resource
asc:bootstrapIdentity	bootstrap identity	asc:AgentService	asc:BootstrapIdentity
asc:capability	capability	asc:AgentService	asc:Capability
asc:changeSeverity	change severity	asc:AgentService	asc:BreakingChangeType
asc:computeTier	compute tier	edgy:Task	asc:ComputeTier
asc:execApproval	exec approval	asc:AgentService	asc:ExecApproval
asc:gating	gating	asc:Skill	asc:GatingRequirements
asc:governedBy	governed by	asc:AgentService	asc:Mandate
asc:graph	graph	asc:GraphInterface	rdfs:Resource
asc:inputShape	input shape	asc:AgentService	sh:NodeShape
asc:mapsToBloc	maps to bloc	asc:Capability	asc:FunctionalBloc
asc:observedAntiPattern	observed anti-pattern	asc:EfficiencyObservation	asc:AntiPattern
asc:ontologyScope	ontology scope	asc:AgentService	asc:OntologyScope
asc:outputShape	output shape	asc:AgentService	sh:NodeShape
asc:pluginHook	plugin hook	asc:Plugin	asc:PluginHook
asc:policy	policy	asc:AgentService	odrl:Policy
asc:quartier	quartier	asc:FunctionalBloc	asc:FunctionalQuartier
asc:reads	reads	asc:AgentService	asc:GraphInterface
asc:redundantWith	redundant with	asc:RedundancyFinding	asc:Capability
asc:reviewedBy	reviewed by	asc:Mandate	prov:Agent
asc:reviewedCapability	reviewed capability	asc:UrbanizationReview	asc:Capability
asc:scriptProduced	script produced	asc:EfficiencyObservation	rdfs:Resource
asc:subagentPolicy	sub-agent policy	asc:AgentService	asc:SubagentPolicy
asc:tierRange	tier range	asc:ServiceLevelAgreement	asc:ComputeTier
asc:toolPolicy	tool policy	asc:AgentService	asc:ToolPolicy
asc:urbanizationAuthority	urbanization authority	asc:FunctionalZone	asc:AgentService
asc:writes	writes	asc:AgentService	asc:GraphInterface
asc:zone	zone	asc:FunctionalQuartier	asc:FunctionalZone

Datatype Properties (53)

URI	Label	Domain	Range
asc:sparql	SPARQL	asc:GraphInterface	xsd:string
asc:agentId	agent ID	asc:AgentService	xsd:anyURI
asc:agentName	agent name	asc:BootstrapIdentity	xsd:string
asc:agentType	agent type	asc:AgentService	xsd:string
asc:alternative	alternative	asc:AntiPattern	xsd:string
asc:alwaysActive	always active	asc:Skill	xsd:boolean
asc:askMode	ask mode	asc:ExecApproval	xsd:string
asc:canonicalPattern	canonical pattern	asc:FunctionalBloc	xsd:string
asc:emoji	emoji	asc:BootstrapIdentity	xsd:string
asc:execPattern	exec pattern	asc:ExecApproval	xsd:string
asc:gainFactor	gain factor	asc:EfficiencyObservation	xsd:decimal
asc:hookCanBlock	hook can block	asc:PluginHook	xsd:boolean
asc:hookName	hook name	asc:PluginHook	xsd:string
asc:lastReviewDate	last review date	asc:Mandate	xsd:date
asc:maxChildren	max children	asc:SubagentPolicy	xsd:integer
asc:maxConcurrent	max concurrent	asc:SubagentPolicy	xsd:integer
asc:maxSpawnDepth	max spawn depth	asc:SubagentPolicy	xsd:integer
asc:maxTokenBudget	max token budget	asc:ServiceLevelAgreement	xsd:integer
asc:reviewDate	next review date	asc:Mandate	xsd:date
asc:operatingInstructions	operating instructions	asc:BootstrapIdentity	xsd:string
asc:pluginKind	plugin kind	asc:Plugin	xsd:string
asc:pluginSlot	plugin slot	asc:Plugin	xsd:string
asc:primaryEnv	primary env	asc:GatingRequirements	xsd:string
asc:registeredTool	registered tool	asc:Plugin	xsd:string
asc:requiresAnyBin	requires any bin	asc:GatingRequirements	xsd:string
asc:requiresBin	requires bin	asc:GatingRequirements	xsd:string
asc:requiresConfig	requires config	asc:GatingRequirements	xsd:string
asc:requiresEnv	requires env	asc:GatingRequirements	xsd:string
asc:resolution	resolution	asc:RedundancyFinding	xsd:string
asc:reviewOutcome	review outcome	asc:UrbanizationReview	xsd:string
asc:role	role	asc:AgentService	rdf:langString
asc:safeBin	safe bin	asc:ExecApproval	xsd:string
asc:securityMode	security mode	asc:ExecApproval	xsd:string
asc:skillContent	skill content	asc:Skill	xsd:string
asc:soulPrompt	soul prompt	asc:BootstrapIdentity	xsd:string
asc:status	status	edgy:Task	xsd:string
asc:storyPoints	story points	edgy:Task	xsd:integer
asc:subagentModel	sub-agent model	asc:SubagentPolicy	xsd:string
asc:subagentTimeout	sub-agent timeout	asc:SubagentPolicy	xsd:integer
asc:supportedOS	supported OS	asc:GatingRequirements	xsd:string
asc:tokenOverhead	token overhead	asc:Skill	xsd:integer
asc:tokensAfter	tokens after	asc:EfficiencyObservation	xsd:integer
asc:tokensBefore	tokens before	asc:EfficiencyObservation	xsd:integer
asc:tokensConsumed	tokens consumed	edgy:Task	xsd:integer
asc:tokensPerStoryPoint	tokens per story point	asc:EfficiencyObservation	xsd:decimal
asc:toolAllow	tool allow	asc:AgentService	xsd:string
asc:toolDeny	tool deny	asc:AgentService	xsd:string
asc:toolNotes	tool notes	asc:BootstrapIdentity	xsd:string
asc:toolProfile	tool profile	asc:AgentService	xsd:string
asc:trigger	trigger commands	asc:AgentService	xsd:string
asc:userInvocable	user invocable	asc:Skill	xsd:boolean
asc:validFrom	valid from	asc:Mandate	xsd:date
asc:validUntil	valid until	asc:Mandate	xsd:date

SPARQL example

# List all classes in this ontology
PREFIX asc: <https://schema.bra0.org/agent-service-contract#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?class ?label ?comment
WHERE {
  ?class a owl:Class ;
         rdfs:label ?label .
  OPTIONAL { ?class rdfs:comment ?comment }
  FILTER(STRSTARTS(STR(?class), STR(asc:)))
}
ORDER BY ?label