FLUIDFLUID
  • Introduction
  • Quickstart
  • Why FLUID
  • FAQ
  • What FLUID Is
  • Core Principles
  • Agentic-Native Layer
  • FLUID vs ODCS / ODPS
  • Anatomy
  • Cheatsheet
  • Full Specification
  • Versions
  • JSON Schema 0.7.5 ↗
  • Reference (HTML) ↗
Examples
How-to
What's New
Deck
GitHub
GitHub
  • Introduction
  • Quickstart
  • Why FLUID
  • FAQ
  • What FLUID Is
  • Core Principles
  • Agentic-Native Layer
  • FLUID vs ODCS / ODPS
  • Anatomy
  • Cheatsheet
  • Full Specification
  • Versions
  • JSON Schema 0.7.5 ↗
  • Reference (HTML) ↗
Examples
How-to
What's New
Deck
GitHub
GitHub
  • Schema Reference

    • Schema Reference
    • Schema Anatomy
    • Schema Cheatsheet
    • Fluid Protocol Specification
    • Minimal Contract & FLUID at a Glance
    • Schema Versions
    • Changelog

Schema Reference

Everything you need to read, write, and validate a FLUID contract. The latest schema version is 0.7.4.

PageUse it for
AnatomyA guided tour of every top-level block, in authoring order, with a "what / when / why" per block. Start here if you've never written a contract.
CheatsheetOne row per field — meaning, required flag, and version added. The fast lookup table while you author.
Minimal Valid ContractThe smallest file that validates, plus a glance at every top-level block.
Full SpecificationThe narrative protocol specification.
VersionsEvery published schema version, linked to its JSON Schema and generated HTML reference.
ChangelogVersion-to-version diffs, including the breaking changes in 0.7.4.

Machine-readable artifacts

  • Raw JSON Schema (0.7.4): /fluid/schema/fluid-schema-0.7.4.json — point your validator here.
  • Generated HTML reference (0.7.4): /fluid/specs/0.7.4/fluid-spec.html — the authoritative field-by-field rendering of every type, enum, and validation rule.

For older versions, see Versions.

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Last Updated: 5/29/26, 5:26 PM
Contributors: fas89, Claude Opus 4.8
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Schema Anatomy