web-pwa-service-workers SKILL.md skillA
web-pwa-service-workers from agents-inc/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agents-inc/skills/web-pwa-service-workers@git:20260906.9d6ccd9Pins git:20260906.9d6ccd9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agents-inc/skills
- Path
src/skills/web-pwa-service-workers/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260906.9d6ccd9, committed Sep 6, 2026
- First version recorded
- Feb 2, 2026
- Size
- 12,458 bytes
- Repository stars
- 26
- License
- MIT
Service Worker lifecycle, caching strategies, offline patterns, update handling, precaching, runtime caching.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Service Worker Patterns > **Quick Guide:** A service worker is a programmable network proxy with its own lifecycle: > install precaches, activate cleans up, fetch intercepts. Match the caching strategy to the > content — cache-first for hashed assets, network-first for HTML, stale-while-revalidate for > non-critical API reads. Two details cause most bugs: a response body can be read once, so > `cache.put(request, response.clone())`, and a new worker waits until every tab using the old one > closes, so updates need explicit detection and a user-triggered `skipWaiting`. **Detailed Resources:** - [examples/core.md](examples/core.md) — registration, the full lifecycle template, the four strategy implementations, message types - [examples/caching.md](examples/caching.md) — background refresh, expiry timestamps, per-endpoint routing, navigation preload, quota cleanup - [examples/updates.md](examples/updates.md) — version messaging, aggressive/deferred/idle updates, progressive rollout, cache migration - [reference.md](reference.md) — strategy-by-content-type table, lifecycle and Cache API lookup, update-strategy selection, review checklist --- ## Which path applies …
Read the whole file at its exact version.
How to install
mdr add agents-inc/skills/web-pwa-service-workers@sha256:d1c37da80fbec96cThe line at the top of this page pins the label git:20260906.9d6ccd9, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_lukaulmkgceaugsl)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Feb 2, 2026 and Sep 6, 2026, about one every 72 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260906.9d6ccd9 latest | 2026-09-06 | 9d6ccd9 | 12,458 B | A | view · diff |
| git:20260328.03e71dd | 2026-03-28 | 03e71dd | 13,159 B | A | view · diff |
| git:20260316.00cb75b | 2026-03-16 | 00cb75b | 13,164 B | A | view · diff |
| git:20260202.b236384 | 2026-02-02 | b236384 | 18,794 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12458 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
agents-inc/skills · 26 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lukaulmkgceaugsl GET https://markdownregistry.com/api/v1/resolve?ref=agents-inc/skills/web-pwa-service-workers GET https://markdownregistry.com/api/v1/blob/d1c37da80fbec96c10586b98e34b9e47d15c9bcc6c8246b73e5f05c6ef7db8b9
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.