packages/AGENTS.md

Follow the root AGENTS.md first. This file only records module-level boundaries for packages/.

Package responsibilities

• packages/contracts: web/daemon app contract layer. Keep it pure TypeScript; it must not depend on Next.js, Express, Node filesystem/process APIs, browser APIs, SQLite, daemon internals, or the sidecar control-plane protocol.
• packages/components: shared React UI primitives and primitive CSS. It may depend on React types/runtime only; keep product workflows and app-specific layout/styling in the apps.
• packages/host: web/desktop host bridge contract. It models renderer-facing host capabilities and helpers while keeping window.__od__ access out of app UI code.
• packages/metatool: internal metadata helpers for repo-local tool build outputs. Keep reusable hash/check/write mechanics here; each concrete tool owns its own meta.json.
• packages/release: pure release-domain primitives. Owns release channel names, version parsing/formatting, metadata field derivation, storage prefixes, release namespaces, and app identity data. It must not read/write files, call GitHub/R2, spawn build tools, or own workflow execution.
• packages/sidecar-proto: Open Design sidecar business protocol. Owns app/mode/source constants, namespace validation, stamp descriptor/fields/flags, IPC message schema, status shapes, error semantics, and default product path constants.
• packages/sidecar: generic sidecar runtime primitives. Includes bootstrap, IPC transport, path/runtime resolution, launch env, and JSON runtime file helpers; it must not hard-code Open Design app keys or IPC business messages.
• packages/platform: generic OS process primitives. Includes stamp serialization, command parsing, process matching/search, and well-known user-toolchain bin discovery; it must consume the sidecar-proto descriptor and must not hard-code --od-stamp-* details. The toolchain helper is the single source of truth shared by the daemon agent resolver (apps/daemon/src/agents.ts) and the packaged sidecar PATH builder (apps/packaged/src/sidecars.ts) so neither layer can drift the search list.

Removed directories

• packages/shared has been removed; do not restore it.
• For new shared types, choose the boundary first: web/daemon app DTOs go in contracts; sidecar control-plane protocol goes in sidecar-proto; generic runtime code goes in sidecar; generic OS/process code goes in platform.

Boundary checklist

• Package tests live in each package's tests/ directory, sibling to src/; keep src/ source-only and do not add new *.test.ts or *.test.tsx files under src/.
• Do not move runtime validation/schema enforcement into contracts prematurely; current contracts define the typed target shape only.
• Do not let app packages depend directly on sidecar control-plane details.
• Do not hard-code Open Design app/source/mode constants in sidecar or platform.
• Keep stamp fields limited to five: app, mode, namespace, ipc, and source.

Common package commands

pnpm --filter @open-design/contracts typecheck
pnpm --filter @open-design/host typecheck
pnpm --filter @open-design/host test
pnpm --filter @open-design/metatool typecheck
pnpm --filter @open-design/metatool test
pnpm --filter @open-design/release typecheck
pnpm --filter @open-design/release test
pnpm --filter @open-design/sidecar-proto typecheck
pnpm --filter @open-design/sidecar-proto test
pnpm --filter @open-design/sidecar typecheck
pnpm --filter @open-design/sidecar test
pnpm --filter @open-design/platform typecheck
pnpm --filter @open-design/platform test