T-04: Discovery & AI Access Layer
T-04: Discovery & AI Access Layer
W3C DCAT v3 (Data Catalog Vocabulary)
Dataset catalogue standard. CTH publishes a DCAT v3 catalogue at
Dataset catalogue standard. CTH publishes a DCAT v3 catalogue at
/api/catalogue listing all available climate datasets, their access conditions, formats, and ODRL usage policies. Registered with Google Dataset Search.
OpenAPI 3.1
Full API specification at
Full API specification at
/api/openapi.json. All endpoints documented with: security schemes (DID-based JWT), request/response schemas (JSON-LD), error codes, policy evaluation requirements. Enables direct agent integration without documentation scraping.
llms.txt
Machine-readable index at
Machine-readable index at
https://wiki.cleantechhub.net/llms.txt (and /llms-full.txt). Lists all framework pages with their purpose, so AI agents can navigate the wiki without embedding the full content. Updated automatically when framework pages change.
JSON-LD Context
Every framework concept (role, rule, credential type, standard) has a JSON-LD term at
Every framework concept (role, rule, credential type, standard) has a JSON-LD term at
https://vocab.cleantechhub.net/climate/. Enables semantic interoperability with other climate data systems (e.g. UNTP registry, EU Commission linked data).Agent Access Pattern
Recommended pattern for an AI agent integrating with the framework:
- Fetch
/llms.txtto identify relevant framework sections - Read specific wiki pages via BookStack API (read-only, no credential required for public pages)
- Request a delegated
cth:AgentCredentialfrom the delegating human's session - Call
POST /policy/evaluatewith the intended action - If
allow: true, proceed with the action using the policy token - PROV-O record is auto-generated by the API gateway (no agent action required)
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