durable-objects

durable-objects is a skill for Claude Code, Codex from lidge-jun/cli-jaw-skills. It costs 63 tokens per session (1,739 once invoked), scanned A, original, no licence file.

A guide for building and reviewing Cloudflare Durable Objects, which provide stateful coordination for applications running on Cloudflare Workers.

In plain words
What is it for?
It is for chat rooms, multiplayer games, booking systems, remote procedure calls, SQLite storage, alarms, and WebSockets.
Why use it?
It helps handle shared state, communication, storage, scheduled work, and testing in these applications.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It is for chat rooms, multiplayer games, booking systems, remote procedure calls, SQLite storage, alarms, and WebSockets.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lidge-jun/cli-jaw-skills/durable-objects
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add lidge-jun/cli-jaw-skills --skill durable-objects
Clone the repo
git clone --depth 1 https://github.com/lidge-jun/cli-jaw-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for durable-objects

README.md
[![agentmods](https://agentmods.dev/badge/skills/lidge-jun/cli-jaw-skills/durable-objects/github.svg)](https://agentmods.dev/skills/lidge-jun/cli-jaw-skills/durable-objects)
Your own site
<a href="https://agentmods.dev/skills/lidge-jun/cli-jaw-skills/durable-objects"><img src="https://agentmods.dev/badge/skills/lidge-jun/cli-jaw-skills/durable-objects/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for durable-objects

Your own site · 80×15
<a href="https://agentmods.dev/skills/lidge-jun/cli-jaw-skills/durable-objects"><img src="https://agentmods.dev/badge/skills/lidge-jun/cli-jaw-skills/durable-objects.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,739 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.01739
Opus 5 $0.00032 $0.00870
Sonnet 5 $0.00013 $0.00348
Haiku 4.5 $0.00006 $0.00174

Measured 9d ago against content hash 70ff2a16cdf2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

durable-objects scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

async fetch(request: Request, env: Env): Promise<Response> {
durable-objects/SKILL.md · 237 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 237 lines · 63 tokens per session scan A 70ff2a16cdf2

Subscribe to this mod's changes

durable-objects is a skill published in the GitHub repository lidge-jun/cli-jaw-skills (4 stars, last pushed 2d ago), with no licence file. It adds 63 tokens to every session and 1,739 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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