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web-pwa-service-workers

web-pwa-service-workers is a skill for Claude Code, Codex from DiegoVilla27/agents-ai-store. It costs 41 tokens per session (1,276 once invoked), scanned A, original, no licence file.

A guide to Progressive Web Apps, which are websites that can work more like installed apps, including limited offline use. It covers service workers, offline caching, background syncing, and web app manifests.

In plain words
What is it for?
It is for adding offline behavior, background synchronization, caching, and install metadata to web apps.
Why use it?
It helps developers handle unreliable connections, delayed network requests, and the browser rules behind app-like web experiences.

Skill for Claude CodeCodex

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

not rated 2repo 1mo ago A scan 41 tokens no licence

Good fit It is for adding offline behavior, background synchronization, caching, and install metadata to web apps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/diegovilla27/agents-ai-store/web-pwa-service-workers
View source ↗ DiegoVilla27/agents-ai-store
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 DiegoVilla27/agents-ai-store --skill web-pwa-service-workers
Clone the repo
git clone --depth 1 https://github.com/DiegoVilla27/agents-ai-store

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 web-pwa-service-workers

README.md
[![agentmods](https://agentmods.dev/badge/skills/diegovilla27/agents-ai-store/web-pwa-service-workers/github.svg)](https://agentmods.dev/skills/diegovilla27/agents-ai-store/web-pwa-service-workers)
Your own site
<a href="https://agentmods.dev/skills/diegovilla27/agents-ai-store/web-pwa-service-workers"><img src="https://agentmods.dev/badge/skills/diegovilla27/agents-ai-store/web-pwa-service-workers/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 web-pwa-service-workers

Your own site · 80×15
<a href="https://agentmods.dev/skills/diegovilla27/agents-ai-store/web-pwa-service-workers"><img src="https://agentmods.dev/badge/skills/diegovilla27/agents-ai-store/web-pwa-service-workers.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,276 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 $0.00041 $0.01276
Opus 5.5 $0.00016 $0.00510
Sonnet 5.5 $0.00008 $0.00255
Haiku 4.5 $0.00004 $0.00128

Measured 2mo ago against content hash da0e250f0610, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

web-pwa-service-workers 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 2mo 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.

fetch(event.request).catch(() => {
shared/skills/web-pwa-service-workers/SKILL.md · 162 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

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. 2mo ago First seen · 162 lines · 41 tokens per session scan A da0e250f0610

Subscribe to this mod's changes

web-pwa-service-workers is a skill published in the GitHub repository DiegoVilla27/agents-ai-store (2 stars, last pushed 1mo ago), with no licence file. It adds 41 tokens to every session and 1,276 once invoked, about $0.0002 per session on Opus 5.5. 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.

Frontend
Related

web-pwa-service-workers compared with skills from other repositories

web-pwa-service-workers next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
web-pwa-service-workersDiegoVilla27/agents-ai-storeSkill21mo agononeA41Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code