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.
/plugin marketplace add callstackincubator/agent-skillsnpx agentmods add plugins/callstackincubator/agent-skills/testing-react-native-appsgit clone --depth 1 https://github.com/callstackincubator/agent-skillsGrade A, and why
testing-react-native-apps 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 yesterday.
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.
What it actually says
{
"$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
"name": "testing-react-native-apps",
"displayName": "Testing React Native Apps",
"version": "0.2.0",
"description": "React Native testing support spanning CI artifacts, test authoring, device automation, and QA workflows.",
"author": {
"name": "Callstack",
"email": "[email protected]",
"url": "https://www.callstack.com/"
},
"homepage": "https://github.com/callstackincubator/agent-skills/tree/main/plugins/testing-react-native-apps",
"repository": "https://github.com/callstackincubator/agent-skills",
"license": "MIT",
"keywords": [
"react-native",
"testing",
"qa",
"automation",
"github-actions",
"ci",
"artifacts"
],
"skills": "./skills/"
}
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.
- yesterday First seen · 26 lines scan A 0a69b94c0c04
testing-react-native-apps is a plugin published in the GitHub repository callstackincubator/agent-skills (1,630 stars, last pushed 24d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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