AAS Core is a local control plane for coding agents that lets them search a large catalogue of skills, choose a stack, validate it, and create a reproducible plan. It is used to assemble and review agent workflows through its CLI, local MCP server, catalogue, plugins, and Workbench. The catalogue add-ons provide the skills, plugins, bundles, and workflows that AAS Core helps agents select and validate.
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 sickn33/agentic-awesome-skills --skill add-app-clipgit clone --depth 1 https://github.com/sickn33/agentic-awesome-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/sickn33/agentic-awesome-skills/add-app-clip)<a href="https://agentmods.dev/skills/sickn33/agentic-awesome-skills/add-app-clip"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/add-app-clip/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/sickn33/agentic-awesome-skills/add-app-clip"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/add-app-clip.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Rogue Agent · line 47 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 200 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 204 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium MCP Rug Pull · line 197 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium Rogue Agent · line 200 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00059 | $0.02492 |
| Opus 5 | $0.00030 | $0.01246 |
| Sonnet 5 | $0.00012 | $0.00498 |
| Haiku 4.5 | $0.00006 | $0.00249 |
Grade A, and why
add-app-clip scanned grade A with 1 finding 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 12d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl https://may20.expo.app/.well-known/apple-app-site-association Copies of this mod
8 near-identical copies found in the catalogue:
- add-app-clip — 100% identical, 0 lines differ
- add-app-clip — 100% identical, 0 lines differ
- add-app-clip — 94% identical, 2 lines differ
- add-app-clip — 94% identical, 2 lines differ
- add-app-clip — 94% identical, 2 lines differ
- add-app-clip — 94% identical, 2 lines differ
- add-app-clip — 89% identical, 16 lines differ
- add-app-clip — 89% identical, 17 lines differ
How it starts
The opening of the file, as written. The whole thing — 298 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Add an App Clip to an Expo App
When to Use
Use this skill when you need add an iOS App Clip target to an Expo app. Use when the user mentions App Clip, AASA, apple-app-site-association, appclips, smart app banner, or wants to ship a lightweight iOS Clip invoked from a URL alongside their parent app.
Adds an iOS App Clip target to an Expo project. The Clip lives in targets/clip/, ships alongside the parent app, and is invoked from a URL on the app's domain via an Apple App Site Association (AASA) file.
The parent app's bundle ID becomes com.<username>.<app-name> and the Clip's is automatically derived as <parent>.clip (e.g. com.bacon.may20.clip).
1. Set bundleIdentifier and appleTeamId
bun create target warns if these are missing. Add to app.json:
{
"expo": {
"ios": {
"bundleIdentifier": "com.<username>.<app-name>",
"appleTeamId": "XX57RJ5UTD"
}
}
}
2. Add the App Clip target
bun create target clip
This installs @bacons/apple-targets, adds it to the plugins array in app.json, and writes:
targets/clip/expo-target.config.js— the target's config plugintargets/clip/Info.plist— Clip Info.plisttargets/clip/AppDelegate.swift,Assets.xcassets, etc.
Pick a good icon or reuse the existing one defined in the app — check it with bunx expo config under the icon or ios.icon key.
3. Wire up associated domains
The parent app and the Clip each need the Associated Domains entitlement pointing at the domain that hosts the AASA file.
In app.json, add both applinks: (parent) and appclips: (Clip invocation) entries:
{
"expo": {
"ios": {
"associatedDomains": [
"applinks:may20.expo.app",
"appclips:may20.expo.app"
]
}
}
}
In targets/clip/expo-target.config.js, declare the Clip's entitlement:
/** @type {import('@bacons/apple-targets/app.plugin').ConfigFunction} */
module.exports = (config) => ({
type: "clip",
icon: "https://github.com/expo.png",
entitlements: {
"com.apple.developer.associated-domains": ["appclips:may20.expo.app"],
},
});
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 298 lines · 59 tokens per session scan A de8c413cb999
add-app-clip is a skill published in the GitHub repository sickn33/agentic-awesome-skills (46,230 stars, last pushed 2d ago), licensed MIT. It adds 59 tokens to every session and 2,492 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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