durable

durable is a skill for Claude Code from AsiaOstrich/universal-dev-standards. It costs 143 tokens per session (1,072 once invoked), scanned A, original, no licence file.

A guide to assistants that keep running work across interruptions, including recovery decisions and retry strategies. It covers how to use them and their main concepts.

In plain words
What is it for?
Use it when designing or operating work that must survive failures and resume reliably.
Why use it?
It helps decide what to retry and how to recover when a long-running task or service fails.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the universal-dev-standards plugin — 55 skills, 53 commands, 10 agents, 1 hook shipped together

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.

agentmods
npx agentmods add skills/asiaostrich/universal-dev-standards/durable-execution-assistant
Any agent
npx skills add AsiaOstrich/universal-dev-standards --skill durable-execution-assistant
Clone the repo
git clone --depth 1 https://github.com/AsiaOstrich/universal-dev-standards

Made for: Claude Code.

Or install universal-dev-standards, the plugin that ships this one along with the rest of its 55 skills, 53 commands, 10 agents, 1 hook.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/asiaostrich/universal-dev-standards/durable-execution-assistant.svg)](https://agentmods.dev/skills/asiaostrich/universal-dev-standards/durable-execution-assistant)
Your own site
<a href="https://agentmods.dev/skills/asiaostrich/universal-dev-standards/durable-execution-assistant"><img src="https://agentmods.dev/badge/skills/asiaostrich/universal-dev-standards/durable-execution-assistant.svg" alt="Measured on agentmods" height="20"></a>
Per session 143 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,072 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00143 $0.01072
Opus 5 $0.00072 $0.00536
Sonnet 5 $0.00029 $0.00214
Haiku 4.5 $0.00014 $0.00107

Measured 6d ago against content hash 30c409517987, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

durable scanned grade A with 0 findings 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 6d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/durable-execution-assistant/SKILL.md · 90 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 6d ago First seen · 90 lines · 143 tokens per session scan A 30c409517987

Subscribe to this mod's changes

durable is a skill published in the GitHub repository AsiaOstrich/universal-dev-standards (73 stars, last pushed today), with no licence file. It adds 143 tokens to every session and 1,072 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.