FLUXFLUX
  • Introduction
  • Quickstart
  • Two Specs, One Substrate
  • The Six Families
  • The FLUID Seam
  • Deterministic & Governed
  • Runtime & Evidence
  • Anatomy
  • The Nineteen Kinds
  • Versions
  • Changelog
  • JSON Schema 0.5.1
  • UI Hints 0.5.1
  • Enforcement Contract 0.5.0
  • Bundle Manifest 0.5.0
  • Overview
  • Tutorial
  • How-to guides
  • Reference
  • Explanation
  • Command line
  • Error codes
  • Accuracy program
  • The vNext Plan
  • The Nine RFCs
  • RFC-10 (proposed)
  • Conformance Profiles
Examples
What's New
FLUID
GitHub
  • Introduction
  • Quickstart
  • Two Specs, One Substrate
  • The Six Families
  • The FLUID Seam
  • Deterministic & Governed
  • Runtime & Evidence
  • Anatomy
  • The Nineteen Kinds
  • Versions
  • Changelog
  • JSON Schema 0.5.1
  • UI Hints 0.5.1
  • Enforcement Contract 0.5.0
  • Bundle Manifest 0.5.0
  • Overview
  • Tutorial
  • How-to guides
  • Reference
  • Explanation
  • Command line
  • Error codes
  • Accuracy program
  • The vNext Plan
  • The Nine RFCs
  • RFC-10 (proposed)
  • Conformance Profiles
Examples
What's New
FLUID
GitHub
  • FLUX Simulation Engine
  • Tutorial
    • First evidence pack in five minutes
  • How-to guides
    • Model your customers
    • Add a journey
    • Use the FLUID seam
    • Calibrate from aggregates: declare a scorecard
    • Ship with evidence
  • Reference
    • Command line
      • fluxsim init
      • fluxsim validate
      • fluxsim plan
      • fluxsim apply
      • fluxsim run
      • fluxsim verify
      • fluxsim ship
      • fluxsim replay
      • fluxsim calibrate
      • fluxsim accuracy
      • fluxsim gate
      • fluxsim expr
      • fluxsim describe
      • fluxsim plugins
      • fluxsim explain
    • Error codes
    • Python API
    • Schemas
  • Explanation
    • The six-step loop
    • Determinism and the seed tree
    • The FLUID seam
    • The evidence pack, and what it does not claim
  • Accuracy program

    • The accuracy program: design
    • Accuracy report

Explanation

These pages answer "why is it like this?". They connect ideas rather than give steps; for steps, see the how-to guides.

  • The six-step loop: what validate, plan, apply, run, verify and ship each do, and why they are separate.
  • Determinism and the seed tree: why the same bundle and seed give the same bytes, and what can still differ.
  • The FLUID seam: why a simulation refers to a contract and never restates it.
  • The evidence pack, and what it does not claim: what ship writes, what a recipient can check, and what it leaves unsaid.
Last Updated: 11/12/26, 10:41 PM
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