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 cometchat/cometchat-skills --skill cometchat-react-native-placementgit clone --depth 1 https://github.com/cometchat/cometchat-skillsWrote 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/cometchat/cometchat-skills/cometchat-react-native-placement)<a href="https://agentmods.dev/skills/cometchat/cometchat-skills/cometchat-react-native-placement"><img src="https://agentmods.dev/badge/skills/cometchat/cometchat-skills/cometchat-react-native-placement/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/cometchat/cometchat-skills/cometchat-react-native-placement"><img src="https://agentmods.dev/badge/skills/cometchat/cometchat-skills/cometchat-react-native-placement.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 | $0.00089 | $0.01857 |
| Opus 5.5 | $0.00036 | $0.00743 |
| Sonnet 5.5 | $0.00018 | $0.00371 |
| Haiku 4.5 | $0.00009 | $0.00186 |
Grade A, and why
cometchat-react-native-placement 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 1mo 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 — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ground truth:
@cometchat/chat-uikit-react-native@5+ catalogrn-v5.json. Docs:/ui-kit/react-native/react-native-conversation·react-native-tab-based-chat·expo-tab-based-chat. Fetch props viacore/references/docs-map.md.
Companion skills (read first)
cometchat-react-native-core— install, provider chain, init→login→render. Assumed, not repeated here.
Use this skill when
- "add a chat tab" · "put chat on its own screen" · "chat inside my existing app"
- "build the whole chat app" · "how do I navigate from the list to a conversation"
Prerequisites & install
Navigation is not bundled. The documented stack:
npm install @react-navigation/native @react-navigation/native-stack @react-navigation/bottom-tabs
npm install react-native-screens react-native-safe-area-context
⚠️ Align these to YOUR React Native version — do not take the latest. The UI Kit declares its peers
as "*", so nothing constrains them for you. react-native-screens 4.x / safe-area-context 5.x use
Fabric codegen that RN 0.77's @react-native/codegen cannot parse; Metro then fails with
Unknown prop type for "moduleId" / "onFinishTransitioning" — an error naming a native codegen file,
never CometChat. Run npx react-native doctor, or match a known-good set for your RN
(on 0.77: [email protected] + [email protected] + [email protected]).
The rule that governs every layout: one screen per route
This is the single biggest difference from the web UI Kit. React places a list and a message pane side by side and toggles side panels with state. On a phone that is wrong:
- each surface is its own screen on a stack navigator
- navigation is
navigation.navigate(...), not conditional rendering - back is the hardware/gesture back button — the OS provides it; do not hand-roll one
- there are no side panels. Search, thread and details are screens you push.
Conditional rendering ({selected ? <Chat/> : <List/>}) appears in the simplest docs recipe and is
fine for a single-screen demo, but it breaks the Android back button and loses navigation state.
Anything beyond a demo uses the navigator.
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.
- 1mo ago First seen · 159 lines · 89 tokens per session scan A b29513ca3b58
cometchat-react-native-placement is a skill published in the GitHub repository cometchat/cometchat-skills (157 stars, last pushed 12d ago), licensed MIT. It adds 89 tokens to every session and 1,857 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-12.
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