CAIN-42 CAIN StudioEvidence library · niche
Tools, MCP, protocols & adapters
How agents reach tools, APIs and each other, safely. 684 tested invariants.
Last reviewed 2026-10-01
684 of 684 held
Test families in this niche
adapter (270) · protocol_domain (56) · discovery (36) · abi (28) · interchange (28) · universal_action (20) · routing (19) · sdk (19) · gateway (19) · gip_carrier (16) · channel (14) · overlay_protocol (13) · uact (12) · route (12) · runtime_adapter (12) · agency_graph (12) · runtime_swap (9) · message_class (9) · runtime_binding (8) · protocol_conformance (8) · operation_kind (8) · edge (6) · abi_error (5) · action (5) · carrier (3) · radar (3) · telemetry (2) · moat (2) · competitive_gap (2) · risk (1) · translation (1) · out_of_band (1) · reassessment (1) · integrity (1) · developer (1) · gap_detector (1) · ip (1) · lab (1) · physical_hybrid (1) · protocol (1)
Where these come from
- CAIN-42 Evolution 25 -- Universal Machine Agency Fabric: 270
- CAIN-42 Evolution 33 -- Governed Agentic Operating Fabric: 109
- CAIN-42 Evolution 35 -- Continuous Governance Intelligence Fabric: 63
- CAIN-42 Evolution 34 -- Proof-Carrying Machine Agency: 40
- CAIN-42 Evolution 27 -- Agentic Internet Control Plane: 36
- CAIN-42 Evolution 31 -- Universal Proof-of-Governance Fabric: 24
- CAIN-42 Evolution 26 -- Universal Machine Agency Trust Fabric: 23
- CAIN-42 Evolution 32 -- Governed Autonomy Learning Fabric: 22
- CAIN-42 Evolution 30 -- Governed Machine Autonomy Fabric: 21
- CAIN-42 Evolution 42 -- Supreme Governed Agentic Infrastructure Platform: 19
- CAIN-42 Evolution 41 -- Machine Agency Exchange Fabric: 18
- CAIN-42 Evolution 36 -- Machine Agency Exchange Fabric: 16
- CAIN-42 Evolution 24 -- Governed Agentic Internet Fabric: 7
- CAIN-42 Evolution 21 -- Governed Open-Ended Intelligence Fabric: 5
- CAIN-42 Evolution 23 -- Governed Meta-Intelligence Fabric: 3
- CAIN-42 Evolution 28 -- Portable Machine Agency & Execution Identity: 3
- CAIN-42 Evolution 38 -- Portable Proof-Carrying Machine Agency: 2
- CAIN-42 Evolution 19 -- Governed Autonomy Operating Fabric: 1
- CAIN-42 Evolution 20 -- Governed Agentic Civilization Fabric: 1
- CAIN-42 Evolution 39 -- Governed Agent Factory: 1
Rules 601–684 of 684
| ID | Rule | Bundle | Result |
|---|---|---|---|
| E35-DOMAIN-TOURNAMENT | the signed domain TOURNAMENT is defined | E35 | held |
| E35-DOMAIN-COMPUTER-USE | the signed domain COMPUTER-USE is defined | E35 | held |
| E35-DOMAIN-REVISION | the signed domain REVISION is defined | E35 | held |
| E35-DOMAIN-KNOWLEDGE-REVOCATION | the signed domain KNOWLEDGE-REVOCATION is defined | E35 | held |
| E35-DOMAIN-RESEARCH-TO-ENGINEERING | the signed domain RESEARCH-TO-ENGINEERING is defined | E35 | held |
| E35-DOMAIN-RADAR | the signed domain RADAR is defined | E35 | held |
| E35-DOMAIN-IP | the signed domain IP is defined | E35 | held |
| E35-DOMAIN-MOAT | the signed domain MOAT is defined | E35 | held |
| E35-DOMAIN-KNOWLEDGE-GRAPH | the signed domain KNOWLEDGE-GRAPH is defined | E35 | held |
| E35-DOMAIN-SWARM | the signed domain SWARM is defined | E35 | held |
| E35-DOMAIN-LAB | the signed domain LAB is defined | E35 | held |
| E35-DOMAIN-BENCHMARK | the signed domain BENCHMARK is defined | E35 | held |
| E35-DOMAIN-INTEGRITY | the signed domain INTEGRITY is defined | E35 | held |
| E35-DOMAIN-ROOT | the signed domain ROOT is defined | E35 | held |
| E35-DOMAIN-DEGRADATION | the signed domain DEGRADATION is defined | E35 | held |
| E35-DOMAIN-LATENCY | the signed domain LATENCY is defined | E35 | held |
| E35-DOMAIN-ECONOMICS | the signed domain ECONOMICS is defined | E35 | held |
| E35-DOMAIN-SELF-HEALING | the signed domain SELF-HEALING is defined | E35 | held |
| E35-DOMAIN-SELF-GOVERNANCE | the signed domain SELF-GOVERNANCE is defined | E35 | held |
| E35-DOMAIN-LOOP | the signed domain LOOP is defined | E35 | held |
| E35-DOMAIN-FABRIC | the signed domain FABRIC is defined | E35 | held |
| E35-RISK-physical | risk dimension physical is separate | E35 | held |
| E35-RADAR-MCP | radar topic MCP exists | E35 | held |
| E35-RADAR-edge_ai | radar topic edge_ai exists | E35 | held |
| E35-RADAR-runtime_governance | radar topic runtime_governance exists | E35 | held |
| E35-IP-governance_interchange | IP primitive governance_interchange exists | E35 | held |
| E35-LAB-new_protocol_vulnerabilities | research-lab topic new_protocol_vulnerabilities exists | E35 | held |
| E35-INTEGRITY-enforcement_adapter | integrity monitor watches enforcement_adapter | E35 | held |
| E36-AGENCY-NODE-tool | agency graph node tool exists | E36 | held |
| E36-AGENCY-NODE-runtime | agency graph node runtime exists | E36 | held |
| E36-AGENCY-EDGE-HIRES | agency graph edge HIRES exists | E36 | held |
| E36-AGENCY-EDGE-EXECUTES | agency graph edge EXECUTES exists | E36 | held |
| E36-AGENCY-EDGE-PROVES | agency graph edge PROVES exists | E36 | held |
| E36-AGENCY-EDGE-VERIFIES | agency graph edge VERIFIES exists | E36 | held |
| E36-AGENCY-EDGE-PAYS | agency graph edge PAYS exists | E36 | held |
| E36-AGENCY-EDGE-DEPENDS_ON | agency graph edge DEPENDS_ON exists | E36 | held |
| E36-AGENCY-EDGE-SUBCONTRACTS | agency graph edge SUBCONTRACTS exists | E36 | held |
| E36-AGENCY-EDGE-REVOKES | agency graph edge REVOKES exists | E36 | held |
| E36-AGENCY-EDGE-RECOVERS | agency graph edge RECOVERS exists | E36 | held |
| E36-AGENCY-EDGE-REVIEWS | agency graph edge REVIEWS exists | E36 | held |
| E36-MOAT-governance_aware_discovery | moat governance_aware_discovery is technical only | E36 | held |
| E36-MOAT-governance_aware_routing | moat governance_aware_routing is technical only | E36 | held |
| E36-COMPETITOR-agent_gateways | competitor category agent_gateways makes no claim | E36 | held |
| E36-COMPETITOR-agent_interoperability_protocols | competitor category agent_interoperability_protocols makes no claim | E36 | held |
| physical_hybrid | every 'physical hybrid' invariant in this bundle (36 of 36 held) | E38 | held |
| protocol | every 'protocol' invariant in this bundle (12 of 12 held) | E38 | held |
| routing | every 'routing' invariant in this bundle (10 of 10 held) | E39 | held |
| E41-DISCOVERY-identity | discovery metadata requires identity | E41 | held |
| E41-DISCOVERY-owner | discovery metadata requires owner | E41 | held |
| E41-DISCOVERY-trust_domain | discovery metadata requires trust_domain | E41 | held |
| E41-DISCOVERY-capabilities | discovery metadata requires capabilities | E41 | held |
| E41-DISCOVERY-interfaces | discovery metadata requires interfaces | E41 | held |
| E41-DISCOVERY-protocols | discovery metadata requires protocols | E41 | held |
| E41-DISCOVERY-authority_model | discovery metadata requires authority_model | E41 | held |
| E41-DISCOVERY-governance_requirements | discovery metadata requires governance_requirements | E41 | held |
| E41-DISCOVERY-execution_boundaries | discovery metadata requires execution_boundaries | E41 | held |
| E41-DISCOVERY-evidence | discovery metadata requires evidence | E41 | held |
| E41-DISCOVERY-attestation | discovery metadata requires attestation | E41 | held |
| E41-DISCOVERY-version | discovery metadata requires version | E41 | held |
| E41-DISCOVERY-dependencies | discovery metadata requires dependencies | E41 | held |
| E41-DISCOVERY-limitations | discovery metadata requires limitations | E41 | held |
| E41-DISCOVERY-conformance_status | discovery metadata requires conformance_status | E41 | held |
| E41-DISCOVERY-revocation_state | discovery metadata requires revocation_state | E41 | held |
| E41-DISCOVERY-policy_languages | discovery metadata requires policy_languages | E41 | held |
| E41-DISCOVERY-authorization_mechanisms | discovery metadata requires authorization_mechanisms | E41 | held |
| E42-SURFACE-mcp | universal action surface mcp is covered | E42 | held |
| E42-SURFACE-edge | universal action surface edge is covered | E42 | held |
| E42-SURFACE-physical_gateway | universal action surface physical_gateway is covered | E42 | held |
| E42-SURFACE-financial_api | universal action surface financial_api is covered | E42 | held |
| E42-SURFACE-enterprise_api | universal action surface enterprise_api is covered | E42 | held |
| E42-ABI-Identity | governance ABI object Identity exists | E42 | held |
| E42-ABI-Intent | governance ABI object Intent exists | E42 | held |
| E42-ABI-Action | governance ABI object Action exists | E42 | held |
| E42-ABI-Capability | governance ABI object Capability exists | E42 | held |
| E42-ABI-Policy | governance ABI object Policy exists | E42 | held |
| E42-ABI-Authority | governance ABI object Authority exists | E42 | held |
| E42-ABI-Risk | governance ABI object Risk exists | E42 | held |
| E42-ABI-Evidence | governance ABI object Evidence exists | E42 | held |
| E42-ABI-Authorization | governance ABI object Authorization exists | E42 | held |
| E42-ABI-Execution | governance ABI object Execution exists | E42 | held |
| E42-ABI-Outcome | governance ABI object Outcome exists | E42 | held |
| E42-ABI-Receipt | governance ABI object Receipt exists | E42 | held |
| E42-ABI-Incident | governance ABI object Incident exists | E42 | held |
| E42-ABI-Evolution | governance ABI object Evolution exists | E42 | held |
Other niches
Consensus & distributed systems · Attacks, threats & containment · Identity, authority & delegation · Evidence, receipts & proofs · Memory, data & privacy · Prediction, world models & simulation · Transactions, markets & economics · Autonomy, control loops & recovery · Policy, law & governance · Trust & reputation · Supply chain, registry & lifecycle · Benchmarks, coverage & performance · Core guarantees
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