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mizan/docs/AFI_ARCHITECTURE.md
Ryth Azhur 9d2781b52c Catch missed content edits from tree restructure
The fe39fcb commit captured the file moves (git mv stages those automatically)
but didn't catch the content edits I made afterward — npm package rename
(@mizan/runtime → @mizan/base), path updates in Makefile/Dockerfile/examples,
and doc updates were all left unstaged at commit time.

This commit lands those:
- npm rename: 3 frontend package.jsons (base/vue/svelte) + mizan-base/src/index.ts + 4 codegen templates
- path updates: Makefile, Dockerfile.test, two Gitea workflows, four example/harness configs
- doc updates: CLAUDE.md, ROADMAP.md, ISSUES.md, docs/AFI_ARCHITECTURE.md

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 01:26:04 -04:00

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AFI Architecture

Mizan is an Application Framework Interface (AFI) — the server-client unification layer.

Package layout

Tree organized by role.

backends/         server protocol adapters
    mizan-django/    Django adapter
    mizan-ts/        TypeScript adapter (proves the protocol is language-agnostic)
frontends/        client kernel + per-framework adapters
    mizan-base/      framework-agnostic kernel; owns data, status, error; adapters subscribe
    mizan-react/     React contexts + hooks over the kernel
    mizan-vue/       Vue composables over the kernel
    mizan-svelte/    Svelte stores/runes over the kernel
cores/            shared language-level primitives (mizan-python forthcoming)
workers/          runtime workers / bridges
    mizan-ssr/       Bun subprocess used by the Django template backend

Two orthogonal products

  • RPC — typed client generation via codegen
  • SSR — server rendering via the Bun bridge

Independent and composable. Either ships standalone; together they compose.

Kernel model

The client kernel (mizan-base) is the one hard thing. Per- framework adapters are thin idiomatic wrappers around it. Codegen emits typed bindings against the framework adapter's surface, not against the raw kernel — so a React developer gets useEcho() and <MizanContext>, a Vue developer gets useEcho() composables, a Svelte developer gets readable stores. Same kernel underneath.

Schema is load-bearing

The backend exports a JSON schema describing every @client-decorated function and context (x-mizan-functions, x-mizan-contexts). The schema IS the contract: codegen reads it, the edge manifest derives from it, MWT auth gates against it.

Launch surface

Python (Django) + React. Vue and Svelte ship as v1 alongside React. TypeScript backend (mizan-ts) proves the protocol is portable.

Why the AFI shape

Quadratic ecosystem growth (N server adapters × M client adapters) collapses to linear (one adapter per stack) when both sides communicate through a shared protocol.

Invariants

  • All cross-package communication goes through the protocol. No direct cross-package dependencies.
  • New adapters land as new packages, not as modifications to existing ones.
  • Framework adapters wrap the kernel in framework idioms — they don't bypass it. Codegen targets the adapter, not the raw kernel.