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 beriberikix/zephyr-agent-skills --skill zephyr-indexgit clone --depth 1 https://github.com/beriberikix/zephyr-agent-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/beriberikix/zephyr-agent-skills/zephyr-index)<a href="https://agentmods.dev/skills/beriberikix/zephyr-agent-skills/zephyr-index"><img src="https://agentmods.dev/badge/skills/beriberikix/zephyr-agent-skills/zephyr-index/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/beriberikix/zephyr-agent-skills/zephyr-index"><img src="https://agentmods.dev/badge/skills/beriberikix/zephyr-agent-skills/zephyr-index.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 | $0.00053 | $0.00736 |
| Opus 5 | $0.00026 | $0.00368 |
| Sonnet 5 | $0.00011 | $0.00147 |
| Haiku 4.5 | $0.00005 | $0.00074 |
Grade A, and why
zephyr-index 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 13d 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 — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Zephyr Index
The Zephyr Index is your entry point to a suite of specialized Agent Skills designed for professional Zephyr RTOS development.
When to Use
- You are starting a new Zephyr task and don't know which skill is relevant.
- You need a high-level overview of the Zephyr skill ecosystem.
- You want to navigate between foundational, common, and advanced Zephyr features.
Quick Start (Skill Selection)
- Open quick_reference.md and match your task category.
- If the task spans multiple domains, follow decision_tree.md.
- Open the selected skill
SKILL.md, then load only the referenced docs needed for the current task.
Navigation Hub
1. Skill Selection
If you have a specific task but aren't sure which skill to load, consult the Decision Tree or the Quick Reference.
2. Full Catalog
Review the Skill Catalog for a complete index of all 21 consolidated skills across four implementation phases.
Core Categories
Foundations & Workflows
Covers the bedrock of Zephyr: West, Devicetree, Build Systems, and Core Kernel Basics.
- Key Skills:
zephyr-foundations,build-system,devicetree,kernel-basics.
Hardware & Peripherals
Interfacing with the physical world: GPIO, I2C, SPI, Sensors, and Power Management.
- Key Skills:
hardware-io,power-performance.
Connectivity
Networking and communication: BLE, IP (MQTT/CoAP/LwM2M), USB, and CAN.
- Key Skills:
connectivity-ble,connectivity-ip,connectivity-usb-can.
Production & Advanced
Taking your product to the finish line: Security, OTA Updates, Testing, and Multicore.
- Key Skills:
security-updates,testing-debugging,multicore.
Automation Tools
- task_skill_match.py: Match task text to likely skills using keyword maps.
Examples & Templates
- task_skill_keywords.csv: Starter keyword-to-skill mapping for quick routing.
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.
- 13d ago First seen · 68 lines · 53 tokens per session scan A 3ff9bbf90827
zephyr-index is a skill published in the GitHub repository beriberikix/zephyr-agent-skills (63 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 53 tokens to every session and 736 once invoked, about $0.0003 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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