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 noloman/Android-AI-skills --skill android-auth-identitygit clone --depth 1 https://github.com/noloman/Android-AI-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/noloman/android-ai-skills/android-auth-identity)<a href="https://agentmods.dev/skills/noloman/android-ai-skills/android-auth-identity"><img src="https://agentmods.dev/badge/skills/noloman/android-ai-skills/android-auth-identity/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/noloman/android-ai-skills/android-auth-identity"><img src="https://agentmods.dev/badge/skills/noloman/android-ai-skills/android-auth-identity.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 | $0.00000 | $0.00348 |
| Opus 5 | $0.00000 | $0.00174 |
| Sonnet 5 | $0.00000 | $0.00070 |
| Haiku 4.5 | $0.00000 | $0.00035 |
Grade A, and why
android-auth-identity 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 9d 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.
What it actually says
name: android-auth-identity description: Authentication & identity — Credential Manager, biometrics, token management, session security. user-invocable: true
Android Authentication & Identity
Cross-cutting skill — always activates alongside the project-type-specific skill.
Hard Rules
- Use Credential Manager API for sign-in flows — replaces legacy Smart Lock and FIDO2 APIs.
- Store tokens in EncryptedSharedPreferences or Android Keystore — never in plain SharedPreferences.
- Implement token refresh transparently — user should not see expired-token errors.
- Use BiometricPrompt from androidx.biometric — not deprecated FingerprintManager.
- Require BIOMETRIC_STRONG for sensitive operations (payments, account changes).
- Never store raw passwords on device — use credential management APIs.
- Validate all tokens server-side — client-side validation alone is insufficient.
- Handle account linking carefully — merge conflicts can lose user data.
- Clear all credentials on logout — tokens, cookies, cached user data.
- Support passkeys (WebAuthn) as the primary passwordless credential.
Core Patterns
- Single AuthRepository abstraction over Credential Manager + token storage.
- Refresh tokens in OkHttp Authenticator — seamless for all API calls.
- Biometric-bound keys for sensitive operations (CryptoObject in BiometricPrompt).
- Use ID tokens (JWT) for user identity, access tokens for API authorization.
- Implement session timeout — re-authenticate after inactivity period.
- Wrap auth state in StateFlow for reactive UI updates.
References
- references/credential_manager.md
- references/biometric_auth.md
- references/token_management.md
- references/google_sign_in.md
- references/session_security.md
- references/digital_credentials.md
What ships with it
6 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.
- 9d ago First seen · 39 lines · 0 tokens per session scan A 7bcefc5de778
android-auth-identity is a skill published in the GitHub repository noloman/Android-AI-skills (6 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 348 tokens. 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 2026-08-31.
Other skills, from other repositories
orca-emulator-android
Android device and emulator control from inside Orca over adb, with the live device view in Orca's emulator pane. Use when driving an adb-connected emulator or phone on Windows, Linux, or macOS: booting AVDs, taps, swipes, typing, hardware buttons, rotation, app install and launch, runtime permissions, the…
android-tombstone-symbolication
Symbolicate the .NET runtime frames in an Android tombstone file. Extracts BuildIds and PC offsets from the native backtrace, downloads debug symbols from the Microsoft symbol server, and runs llvm-symbolizer to produce function names with source file and line numbers. USE FOR triaging a .NET MAUI or Mono Android app…
dogfood
Systematically explore and test a mobile app on iOS/Android with agent-device to find bugs, UX issues, and other problems. Use when asked to dogfood, QA, exploratory test, find issues, bug hunt, or test this app on mobile.
winapp-maui
Package and sign .NET MAUI Windows apps with winapp, resolving the resizetizer manifest dependency. Use when packaging or signing a .NET MAUI Windows app, building a MAUI MSIX or signed unpackaged build in CI, or fixing 'manifest contains unresolved placeholders ($placeholder$)' errors from winapp package.
apple-search-ads
When the user wants to set up, optimize, or scale Apple Search Ads (ASA) campaigns — including keyword bidding, match types, campaign structure, Creative Product Sets, CPP routing, and ROAS optimization. Use when the user mentions "Apple Search Ads", "ASA", "Search Ads", "Search tab ads", "Today tab ads", "CPT"…
android-pentest
A guide for authorized security testing of Android apps, covering APK inspection, runtime testing, traffic capture, code review, and function hooking. An APK is the installable package used by an Android app.