Research: durable-objects
Cached research evidence for durable-objects (not authority).
Purpose
Section titled “Purpose”durable-objects covers stateful coordination primitives on Cloudflare: per-entity Durable Objects, RPC, SQLite storage, alarms, WebSockets, hibernation. Includes wrangler config (new_sqlite_classes migrations), getByName vs newUniqueId routing, blockConcurrencyWhile for init, storage best practices, and Vitest testing patterns. Strongly retrieval-oriented toward current docs.
Harness Coverage
Section titled “Harness Coverage”Target agents listed in the cloudflare bundle install. Complements workers-best-practices and agents-sdk for stateful features.
Trust And Risks
Section titled “Trust And Risks”install-now-after-trust-gate / curated-trust-gated (part of official cloudflare/skills). Risks are those of long-lived DO instances (eviction, storage costs, concurrency model, alarm reliability). The skill emphasizes correct patterns (SQLite, one alarm per DO, persist-first) to avoid common footguns.
Install Prerequisites
Section titled “Install Prerequisites”Same cloudflare/skills bundle install. Project must enable the Durable Objects binding and migration in wrangler.jsonc.
Upstream Maintainer
Section titled “Upstream Maintainer”Cloudflare (https://github.com/cloudflare/skills). Docs: https://developers.cloudflare.com/durable-objects/
Comparable Alternatives
Section titled “Comparable Alternatives”Other edge state solutions (e.g. Redis, Fauna, Supabase Realtime) or plain Workers + external DB when strong per-entity consistency at the edge is not required.
> Evidence gathered from public GitHub raw files and Cloudflare docs links in skill. Not an endorsement or authority.