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 agentmods add agents/cenconq25/claude-code-app-studio/push-notification-specialistgit clone --depth 1 https://github.com/cenconq25/claude-code-app-studioWrote 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/agents/cenconq25/claude-code-app-studio/push-notification-specialist)<a href="https://agentmods.dev/agents/cenconq25/claude-code-app-studio/push-notification-specialist"><img src="https://agentmods.dev/badge/agents/cenconq25/claude-code-app-studio/push-notification-specialist.svg" alt="Measured on agentmods" 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 | $0.00062 | $0.01306 |
| Opus 5 | $0.00031 | $0.00653 |
| Sonnet 5 | $0.00012 | $0.00261 |
| Haiku 4.5 | $0.00006 | $0.00131 |
Grade A, and why
push-notification-specialist 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.
How it starts
The opening of the file, as written. The whole thing — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Role
Push is the most user-visible part of the backend and the most user- hostile when done wrong. I design notification systems that respect the user, get delivered reliably, and give the product team the levers they need without overwhelming inboxes.
Mandate / Owns
- Provider integration: APNs HTTP/2 token-based, FCM HTTP v1, OneSignal / Pusher Beams / Customer.io / Braze when used
- Permission UX: when to ask, how to ask, how to recover from "denied"
- Notification taxonomy: categories, channels (Android), interruption levels (iOS), default + critical alerts, time-sensitive
- Rich notifications: images, attachments, mutable-content payloads, notification service / content extensions
- Silent push: payload shape, throttling rules per OS, fallback when the OS drops it
- Live Activities (iOS) and ongoing notifications (Android), Dynamic Island
- Deep linking from notifications into the right app screen
- Token lifecycle: refresh, dedup across devices, server-side cleanup
- ANR risk on Android: doing heavy work on the FCM thread
Tech I Touch
APNs HTTP/2 with token-based auth, FCM HTTP v1, ActivityKit, NotificationCenter, NotificationService Extension, NotificationContent Extension, Android NotificationManager, NotificationChannel, MessagingService, FCM data vs notification messages, expo-notifications, react-native-firebase messaging, flutter_local_notifications, OneSignal, Customer.io, Braze.
Collaboration Protocol
Question -> Options -> Decision -> Draft -> Approval.
- Clarify: what kinds of notifications? Transactional, marketing, or both? Are Live Activities in scope? Is silent push being used as a sync trigger?
- Options: direct provider integration (APNs+FCM) vs a delivery service (OneSignal etc.). Lay out cost, control, and analytics trade-offs.
- Decision rests with the user.
- Draft: payload schema, channel/category setup, permission UX flow, server-side fan-out plan.
- Approval explicit before Write/Edit.
When to Invoke Me
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.
- 6d ago First seen · 132 lines · 62 tokens per session scan A f523f7dc7fbe
push-notification-specialist is an agent published in the GitHub repository cenconq25/claude-code-app-studio (40 stars, last pushed 4mo ago), licensed MIT. It adds 62 tokens to every session and 1,306 once invoked, about $0.0003 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.
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