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.
npx skills add MartinOlivero/saas-builder --skill pwagit clone --depth 1 https://github.com/MartinOlivero/saas-builderWrote 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.
[](https://agentmods.dev/skills/martinolivero/saas-builder/pwa)<a href="https://agentmods.dev/skills/martinolivero/saas-builder/pwa"><img src="https://agentmods.dev/badge/skills/martinolivero/saas-builder/pwa/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.
<a href="https://agentmods.dev/skills/martinolivero/saas-builder/pwa"><img src="https://agentmods.dev/badge/skills/martinolivero/saas-builder/pwa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00113 | $0.00902 |
| Opus 5 | $0.00056 | $0.00451 |
| Sonnet 5 | $0.00023 | $0.00180 |
| Haiku 4.5 | $0.00011 | $0.00090 |
Grade A, and why
pwa 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 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.
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.
How it starts
The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PWA
This skill makes a React + Vite app installable and offline-capable — the realistic middle ground between a plain website and a full native app. For a web-SaaS builder, this is the common mobile need; full React Native is rare and better served by Expo's own skills.
Analogy: a PWA is a food truck. It's the same kitchen as the restaurant (your web app), but it can park on the user's home screen and keep serving when the main location's network is down. You don't need to build a second restaurant (a native app) to get there.
When to use this vs going native
- PWA (this skill) → installable, offline, push for an existing web app. Covers most "we need mobile" requests.
- Full React Native → only when you need deep native APIs, app-store presence, or heavy device integration. Delegate to
expo/skills(official, ~2k⭐) rather than rebuilding it here. At most, share TS types/API client via a monorepopackages/shared.
Discovery (max 3 questions, only if unknown)
- What's the goal — installable, offline reads, offline writes, or push notifications?
- Is this an existing Vite app, or starting fresh?
- Do you need push on iOS? (It only works for installed PWAs, Safari 16.4+.)
Step 1 — Install and configure
Add vite-plugin-pwa (~4k⭐, Workbox-based). Start with registerType: 'autoUpdate' and the generateSW strategy to precache the app shell + static assets. This plus a Web App Manifest and HTTPS = installable.
Step 2 — Author the manifest
Web App Manifest: name, short_name, theme_color, background_color, 192px and 512px maskable icons, display: standalone, start_url. The plugin can generate it from config.
Step 3 — Caching strategy
- Cache-first for hashed static assets (they never change without a new hash).
- Stale-while-revalidate for API/data (instant from cache, refresh in background).
- Set
navigateFallbackso SPA routes work offline.
Step 4 — Offline writes (if needed)
Don't try to cache POSTs in the service worker. Pair the SW with IndexedDB (e.g. Dexie) + Workbox Background Sync to queue mutations and replay them on reconnect.
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.
- 9d ago First seen · 61 lines · 113 tokens per session scan A 1a316f7f1e2a
pwa is a skill published in the GitHub repository MartinOlivero/saas-builder (2 stars, last pushed 21d ago), licensed MIT. It adds 113 tokens to every session and 902 once invoked, about $0.0006 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 2026-08-31.
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