# In App Messaging Kit > Library of in-product message patterns, triggers, and targeting rules. Use when this capability is needed. - Skill: `tomevault-io/in-app-messaging-kit` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/in-app-messaging-kit` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/in-app-messaging-kit/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Marketing & Growth - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/in-app-messaging-kit --- # In-App Messaging Kit Skill ## When to Use - Designing nudges, tooltips, and walkthroughs for onboarding or feature launches. - Coordinating lifecycle messaging across in-app surfaces, chat, and email. - Testing personalization ideas tied to usage milestones or cohorts. ## Framework 1. **Trigger Matrix** – event-based, state-based, and contextual triggers. 2. **Message Patterns** – tooltip, modal, checklist, banner, coachmark, chat prompt. 3. **Targeting Rules** – persona, plan/tier, usage depth, lifecycle stage. 4. **Measurement Plan** – success metrics (CTR, completion, conversion) and guardrails. 5. **Localization + Accessibility** – copy guidelines, fallback flows, and escalation options. ## Templates - Message brief (goal, trigger, variant, CTA, measurement). - Component library reference with best practices. - Experiment tracker linking messages to outcomes. ## Tips - Keep copy concise; pair visuals or GIFs where possible. - Schedule “quiet hours” to avoid notification overload. - Tie each message to a single next-best-action to reduce decision fatigue. --- --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/gtmagents) — claim your Tome and manage your conversions.