firtoz/cf-web-alchemy-bindings
agents/skills/cf-web-alchemy-bindings/SKILL.md
Wire @internal/web to durable-objects workers—workspace dep, alchemy.run.ts ReactRouter bindings, and env patterns. Use when adding `workspace:*` for a worker, editing apps/web/alchemy.run.ts, or debugging missing worker types after a new package.
$ install --global
skillsauthnpx skillsauth add firtoz/cf-multiworker-starter-kit cf-web-alchemy-bindingsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- cf-web-alchemy-bindings
- description:
- Wire @internal/web to durable-objects workers—workspace dep, alchemy.run.ts ReactRouter bindings, and env patterns. Use when adding `workspace:*` for a worker, editing apps/web/alchemy.run.ts, or debugging missing worker types after a new package.
Web app: Alchemy bindings to workers and DOs
When to use
- Exposing a
durable-objects/<pkg>worker or DO to the web app’sReactRouterbindings. - After adding a new
workspace:*worker dependency, fixing howenvin workers/app.ts lines up with imports in alchemy.run.ts.
What to do
-
Dependency — apps/web/package.json:
"<package-name>": "workspace:*".bun installfrom repo root. -
Import — apps/web/alchemy.run.ts:
import { … } from "<package-name>/alchemy". -
Bindings — Pass each binding into
ReactRouter("…", { bindings: { …, MyDo: myWorker.bindings.MyDo, … } })using the names your workers/app.ts reads fromthis.env(e.g.this.env.PingDo). D1: importmainDbfrom@internal/db/alchemyand setDB: mainDb(D1 is defined in packages/db/alchemy.run.ts, not inlined in web). -
In route code — Prefer
import { env } from "cloudflare:workers"for bindings, not React Routercontext(multiworker-gotchas, cf-workers-patterns.mdc). -
If you are tempted to add
includelines in tsconfig.cloudflare.json that point at another package’sworkers/app.ts, don’t—multipledeclare global { type Env }sources break the webEnv. Types follow your normal imports; no need to listdurable-objects/…ininclude. -
Verify —
bun run typegenandbun run typecheckfrom root.
See also
- cf-durable-object-package — worker package layout.
- cf-worker-rpc-turbo —
workers/rpc.ts, Turbodev/destroy, cross-worker types.
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