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 TalissonVitorino/kmp-ios-skills --skill app-clipsgit clone --depth 1 https://github.com/TalissonVitorino/kmp-ios-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/talissonvitorino/kmp-ios-skills/app-clips)<a href="https://agentmods.dev/skills/talissonvitorino/kmp-ios-skills/app-clips"><img src="https://agentmods.dev/badge/skills/talissonvitorino/kmp-ios-skills/app-clips/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/talissonvitorino/kmp-ios-skills/app-clips"><img src="https://agentmods.dev/badge/skills/talissonvitorino/kmp-ios-skills/app-clips.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 9 findings, up to high
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 →
- high Prompt Injection · line 50 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
- high Prompt Injection · line 63 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
- high Privilege Escalation · line 241 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- medium Rogue Agent · line 3 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 23 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 45 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 73 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 164 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 Excessive Agency · line 182 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00246 | $0.04084 |
| Opus 5 | $0.00123 | $0.02042 |
| Sonnet 5 | $0.00049 | $0.00817 |
| Haiku 4.5 | $0.00025 | $0.00408 |
Grade A, and why
app-clips 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 11d 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 — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.
App Clips (iOS)
A small, fast, launch-on-demand slice of your full app — invoked from a URL (NFC,
QR, App Clip Code, Safari banner, Maps, Messages) without an App Store install.
For a fintech app the common uses are pay-at-table, scan-to-pay a merchant code,
onboard-a-card, or claim-an-offer, then hand off to the full app. Grounded in
Apple's AppClip framework, StoreKit, and App Store Connect docs (iOS 26 era).
- Deep links / associated domains: an App Clip is Universal-Links machinery narrowed to one target; see
deep-linking. - Secure handoff: shared secrets go through an App Group container or CloudKit, not the Keychain (App Clip Keychain items are not readable by the full app) — see
swift-security,cloudkit. - Writing physical tags: encode the invocation URL on an NDEF tag with
core-nfc. - Purchases inside the clip: StoreKit works in a clip — see
storekit; Apple Pay viapasskit. - Submission gates: privacy manifest, size, entitlements — see
app-store-review.
Contents
- Architecture & targets
- Entitlements & Info.plist
- Invocation & routing (NSUserActivity)
- Invocation methods
- App Store Connect experiences
- Size & capability budget
- Ephemeral permissions
- Location confirmation
- Full-app promotion (SKOverlay)
- Data handoff to the full app
- Correctness checklist
- References:
references/experiences.md,references/size-and-capabilities.md
Architecture & targets
- An App Clip is a separate target inside the full app's Xcode project (File ▸ New ▸ Target ▸ App Clip). It ships inside the full app's binary but downloads independently.
- The App Clip bundle ID must be the full app's bundle ID plus one suffix segment: full app
com.example.wallet→ clipcom.example.wallet.Clip. - One full app has exactly one App Clip. One App Clip can serve many experiences (many URLs / merchants).
- Reuse code by putting shared logic in a framework or Swift package linked into both targets — do not duplicate. Keep the clip's slice minimal (see budget).
- The clip is ephemeral: no background execution after the user leaves, data cleared if unused, capped lifetime. Design every flow to complete in one session or resume from the full 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.
- 11d ago First seen · 259 lines · 246 tokens per session scan A 0a698617cf22
app-clips is a skill published in the GitHub repository TalissonVitorino/kmp-ios-skills (12 stars, last pushed 16d ago), licensed MIT. It adds 246 tokens to every session and 4,084 once invoked, about $0.0012 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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