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 agentmods add skills/gpengzhi/mobile-skill/skillnpx skills add gpengzhi/mobile-skill --skill skillgit clone --depth 1 https://github.com/gpengzhi/mobile-skillWrote 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/gpengzhi/mobile-skill/skill)<a href="https://agentmods.dev/skills/gpengzhi/mobile-skill/skill"><img src="https://agentmods.dev/badge/skills/gpengzhi/mobile-skill/skill.svg" alt="Measured on agentmods" 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 | $0.00048 | $0.03331 |
| Opus 5 | $0.00024 | $0.01665 |
| Sonnet 5 | $0.00010 | $0.00666 |
| Haiku 4.5 | $0.00005 | $0.00333 |
Grade A, and why
mobile-skill 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 4d 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 — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.
mobile-skill
Use msk for every device observation and action. Run exactly one msk command per shell invocation. Do not call ADB directly or generate control scripts.
Task Boundaries
Define the user's success condition before acting. Complete only the requested bounded task, stop as soon as its observable success condition is met, and do not add post-success navigation or "just in case" verification. If a required step keeps failing without progress, stop retrying and use request-help or report the blocker.
Efficiency Defaults
- Discover the exact package with
apps list --user-visiblewhen needed, then inspect that package's app registry before GUI navigation. If the target app is not installed, open the system app market, search for the app, and install it before continuing; after installation, rerunapps list --user-visibleand verify the exact package. Pause for login, permission, payment, or other user-only prompts rather than bypassing them. Use a curated deep-link template whenever it directly reaches the requested destination; otherwise use GUI navigation. Do not reject a verified destination merely because it contains user-supplied parameters. - When two or more independent visible targets are stable in the latest observation, use one bounded
sequenceof at most five actions. Split actions only when an earlier action may navigate, open a dialog, change the layout, invalidate coordinates, or make the next action conditional. Always verify the resulting observation. - For side-effecting actions, a sequence is allowed only when the user has authorized all of them and the targets are independent and remain fixed in the same frame. Otherwise perform and verify each action separately.
Before Starting
Before the first Session, after environment changes, or when diagnosing failures, run the relevant check:
msk --json doctor --agent HARNESS_NAME
Replace HARNESS_NAME with your registered harness (e.g., codex, claude-code, cursor). Use msk --json doctor when no Agent-specific check applies. Treat vision=unverified as normal; static checks cannot verify image understanding. Use msk devices and msk session list only for troubleshooting.
What ships with it
1 file 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.
- 4d ago First seen · 172 lines · 48 tokens per session scan A ecb316450ae8
mobile-skill is a skill published in the GitHub repository gpengzhi/mobile-skill (5 stars, last pushed 8d ago), licensed MIT. It adds 48 tokens to every session and 3,331 once invoked, about $0.0002 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 2026-08-31.
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