Argent is a toolkit that lets an AI assistant control and inspect iOS, Android, TV, Electron, and Chromium applications through simulators, emulators, physical devices, or desktop connections. It is for developers who want an agent to interact with interfaces, reproduce issues, test features, debug applications, or run profiling tasks. The catalogue add-ons expose Argent's device-control and development workflows to coding agents.
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/software-mansion/argent/argent-metro-debuggernpx skills add software-mansion/argent --skill argent-metro-debuggergit clone --depth 1 https://github.com/software-mansion/argentWrote 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/software-mansion/argent/argent-metro-debugger)<a href="https://agentmods.dev/skills/software-mansion/argent/argent-metro-debugger"><img src="https://agentmods.dev/badge/skills/software-mansion/argent/argent-metro-debugger.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 5.1 | $0.00104 | $0.02741 |
| Opus 5 | $0.00052 | $0.01371 |
| Sonnet 5 | $0.00021 | $0.00548 |
| Haiku 4.5 | $0.00010 | $0.00274 |
Grade A, and why
argent-metro-debugger 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 2d 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 — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.
1. Prerequisites
Physical iPhone: not supported; every debugger-* tool rejects kind: "device". Use a simulator.
For React Native (iOS / Android): requires Metro dev server running (default localhost:8081) and a React Native app connected to Metro (at least one CDP target). Verify via debugger-status — it returns status: "connected" or status: "not_connected" with a reason and guidance (it does not fail when the debugger is unreachable).
For Vega (Fire TV): requires a Debug .vpkg (a Release build never attaches) and Metro reachable from the device (vega device start-port-forwarding --port 8081 --forward false). Verify via debugger-status. debugger-component-tree, debugger-inspect-element, debugger-reload-metro and the react-profiler-* / profiler-* tools are unavailable there — see the argent-tv-interact skill.
For Chromium (CDP): requires a Chromium/CDP app already available — an Electron app booted via boot-device with electronAppPath, or any Chromium browser exposing a CDP port (auto-discovered by list-devices on 9222 / ARGENT_CHROMIUM_PORTS). The debugger re-uses the page CDP session — port is ignored, device_id is the chromium-cdp-<port> value from list-devices / boot-device. Only debugger-connect, debugger-status, debugger-evaluate, debugger-log-registry, view-network-logs, and view-network-request-details work on Chromium (the latter two read the browser's native CDP Network recording for the active tab instead of the Metro-injected fetch interceptor); debugger-component-tree, debugger-reload-metro, debugger-inspect-element, and the react-profiler-* / profiler-* tools are RN-only and reject Chromium at the capability gate with Tool 'X' is not supported on chromium app.
Android: reverse port for Metro
Android emulators and physical devices do not resolve the host's localhost by default. Before the RN app can reach Metro, forward port 8081 (or whichever port Metro is on) from the device back to the host:
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.
- 2d ago Changed · +2 lines 05256581bfbf
- 6d ago First seen · 135 lines · 104 tokens per session scan A 3a8cacb505dc
argent-metro-debugger is a skill published in the GitHub repository software-mansion/argent (2,378 stars, last pushed yesterday), licensed Apache-2.0. It adds 104 tokens to every session and 2,741 once invoked, about $0.0005 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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