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/google/skills/developer-device-platform-basicsnpx skills add google/skills --skill developer-device-platform-basicsgit clone --depth 1 https://github.com/google/skillsWhat 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 | $0.00057 | $0.02282 |
| Opus 5 | $0.00028 | $0.01141 |
| Sonnet 5 | $0.00011 | $0.00456 |
| Haiku 4.5 | $0.00006 | $0.00228 |
Grade A, and why
developer-device-platform-basics 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
> verify and use the exact instructions and curl commands provided in the linked How it starts
The opening of the file, as written. The whole thing — 253 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Developer Device Platform
Developer Device Platform (DDP) is a Google fully managed, global infrastructure providing access to a wide variety of physical and virtual devices.
[!WARNING] Developer Device Platform (DDP) is currently at Preview.
[!IMPORTANT] For all devicerun and devicestreaming API operations (reserving, status checking, stopping/canceling, updating, or listing a session), always verify and use the exact instructions and curl commands provided in the linked reference
.mdfiles.
Authentication & Setup
CRITICAL: Before running any requests, you MUST ensure the environment is correctly initialized by following these steps:
Before running any requests, verify if the gcloud executable is present. If
missing, refer to the official
Google Cloud CLI Installation Guide
to install it on the current platform (Linux, macOS, Windows, etc.).
-
Google Cloud Authentication: Authenticate with your Google Cloud credentials and configure active Application Default Credentials (ADC) for the Developer Device Platform:
gcloud auth login --no-browser gcloud auth application-default login --no-browser -
Enable APIs (if not already enabled):
gcloud services enable devicerun.googleapis.com devicestreaming.googleapis.com testing.googleapis.com --quiet
[!NOTE] Cloud Testing API is needed for Device Streaming API during Preview.
-
Enable gcloud beta component:
gcloud components install beta -
Setup Environment Variables: Set up the required project variable and access token:
export PROJECT_ID=$(gcloud config get project) export ACCESS_TOKEN=$(gcloud auth application-default print-access-token 2>/dev/null) -
Python Environment: For instructions on setting up the python virtual environment, see [start_adb_forwarder.md].
Listing Available Devices
What ships with it
10 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.
- references/cancel_session.md 314 B
- references/describe_device.md 388 B
- references/list_sessions.md 454 B
- references/reserve_device.md 404 B
- references/session_status.md 217 B
- references/start_adb_forwarder.md 2.2 KB
- references/update_session_expiration.md 439 B
- references/view_device.md 377 B
- scripts/demo_adb_forwarder.py 12 KB runs code
- scripts/requirements.txt 71 B
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 First seen · 253 lines · 57 tokens per session scan A 43b2b8c74b5d
developer-device-platform-basics is a skill published in the GitHub repository google/skills (19,003 stars, last pushed 4d ago), licensed Apache-2.0. It adds 57 tokens to every session and 2,282 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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