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CIMD

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Client ID Metadata Document: the mechanism by which an OAuth client identifies itself with a URL, used as its client ID, that points to its metadata document. The MCP specification of 2026-07-28 has clients and authorisation servers support it and deprecates Dynamic Client Registration 1; the IETF specification is still an Internet-Draft (revision 02, 6 Jul 2026) as of 2026-09-24 2.

Developed in
ch. 23, MCP authorization as of 2026-07-28
ch. 04, Layer 04: Runtime Controls & Observability
Chapters
ch. 04, The Stack · ch. 05, Patterns · ch. 23, AI Agents
Source
2 numbered references, listed below

Where it is used

The term is not used under this name in running prose; the sections listed under "Developed in" treat it.

CIMD: related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedCIMDRelated terms (5)Guardian agent · RelatedGuardian agentMCP · RelatedMCPPrompt injection · RelatedPrompt injectionToken passthrough · RelatedToken passthroughWorkload identity · RelatedWorkload identity
CIMD: related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedRelated terms (5)Guardian agent · RelatedGuardian agentMCP · RelatedMCPPrompt injection · RelatedPrompt injectionToken passthrough · RelatedToken passthroughWorkload identity · RelatedWorkload identityCIMD
The term's neighbourhood Terms related to this one on solid edges, terms it is often confused with on dashed edges, and the patterns that use it most in the colour of their layer. Follow a dashed edge to check the distinction before you use either term.
Neighbourhood as a table
Neighbourhood of CIMD
FamilyItemRelation
Related termsGuardian agentRelated
Related termsMCPRelated
Related termsPrompt injectionRelated
Related termsToken passthroughRelated
Related termsWorkload identityRelated
  • Guardian agent

    An AI agent whose job is to supervise, check or constrain other agents at runtime; Gartner predicts guardian-agent technologies will account for at least 10…

  • MCP

    Model Context Protocol: an open protocol for connecting AI applications to tools and data sources; its 2026 specification adds OAuth 2.1 resource-server…

  • Prompt injection

    An input that alters a model's behaviour or output in ways its designers did not intend.

  • Token passthrough

    The anti-pattern in which a server accepts a token that was not issued to it and forwards it, unmodified, to a downstream API, which may then trust it as if…

  • Workload identity

    The attributable identity a workload such as an agent carries across every hop, under which its actions are logged and its access is revoked, typically a…

Sources

  1. [1] Model Context Protocol specification 2026-07-28 (OAuth 2.1 resource servers; Client ID Metadata Documents; issuer-bound credentials). Anthropic / MCP. 2026-07-28. https://blog.modelcontextprotocol.io/posts/2026-07-28/ (verified: primary)
  2. [2] draft-ietf-oauth-client-id-metadata-document-02, OAuth Client ID Metadata Document (Internet-Draft, OAuth working group, revision 02 of 6 Jul 2026; a URL used as client_id that refers to the client's metadata document). IETF. 2026-07-06. https://datatracker.ietf.org/doc/draft-ietf-oauth-client-id-metadata-document/ (verified: primary)

Definitions of legal terms paraphrase the cited text, which governs. Dated statements are as of .

Cite this term

García Aibar, J. (2026). CIMD. In AI Governance Engineering: The Thesis & Body of Knowledge (v0.5.0), Glossary. https://doi.org/10.5281/zenodo.22956197. https://aigovernanceengineer.com/glossary/cimd. CC BY 4.0

BibTeX

@misc{aige2026cimd,
  author  = {Jorge García Aibar},
  title   = {{CIMD}},
  note    = {Glossary, AI Governance Engineering: The Thesis \& Body of Knowledge, version 0.5.0},
  year    = {2026},
  doi     = {10.5281/zenodo.22956197},
  url     = {https://aigovernanceengineer.com/glossary/cimd}
}