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 gmh5225/awesome-skills --skill platformsgit clone --depth 1 https://github.com/gmh5225/awesome-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/gmh5225/awesome-skills/platforms)<a href="https://agentmods.dev/skills/gmh5225/awesome-skills/platforms"><img src="https://agentmods.dev/badge/skills/gmh5225/awesome-skills/platforms/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/gmh5225/awesome-skills/platforms"><img src="https://agentmods.dev/badge/skills/gmh5225/awesome-skills/platforms.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 71 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 | $0.00033 | $0.00769 |
| Opus 5 | $0.00016 | $0.00385 |
| Sonnet 5 | $0.00007 | $0.00154 |
| Haiku 4.5 | $0.00003 | $0.00077 |
Grade A, and why
agent-platforms 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 10d 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 — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Multi-Platform Agent Skills
Scope
Use this skill when:
- Ensuring skills work across multiple platforms
- Understanding platform-specific conventions
- Converting skills between platforms
Platform Compatibility Matrix
| Platform | Skill Format | Project Path | Global Path |
|---|---|---|---|
| Amp | SKILL.md | .agents/skills/ |
~/.config/agents/skills/ |
| Antigravity | SKILL.md | .agent/skills/ |
~/.gemini/antigravity/skills/ |
| Claude Code | SKILL.md | .claude/skills/ |
~/.claude/skills/ |
| Codex | SKILL.md | .codex/skills/ |
~/.codex/skills/ |
| Cursor | SKILL.md | .cursor/skills/ |
~/.cursor/skills/ |
| Gemini CLI | SKILL.md | .gemini/skills/ |
~/.gemini/skills/ |
| GitHub Copilot | SKILL.md | .github/skills/ |
~/.copilot/skills/ |
| Goose | SKILL.md | .goose/skills/ |
~/.config/goose/skills/ |
| OpenCode | SKILL.md | .opencode/skills/ |
~/.config/opencode/skills/ |
| Windsurf | SKILL.md | .windsurf/skills/ |
~/.codeium/windsurf/skills/ |
Universal SKILL.md Format
All platforms use YAML frontmatter:
---
name: skill-name
description: When to use this skill
---
# Instructions here...
Cross-Platform Installation
Most tools auto-discover skills in .agent/skills/:
# Universal installation (works with most tools)
git clone https://github.com/user/skills .agent/skills
Platform-Specific Notes
Claude Code
- Auto-discovers from
.claude/skills/and~/.claude/skills/ - Supports
/initcommand for context bootstrapping
Codex (OpenAI)
- Supports multiple scopes: REPO, USER, ADMIN, SYSTEM
- Built-in
$skill-creatorand$skill-installer - Restart required after installing new skills
GitHub Copilot
- Skills in
.github/skills/directory - Uses
SKILL.mdwithnameanddescriptionrequired - Copilot auto-activates based on description match
Gemini CLI
- Use
@symbol to attach skill files to prompts - Place skills in
.gemini/skills/or.agent/skills/
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.
- 10d ago First seen · 89 lines · 33 tokens per session scan A 7e2d71824911
agent-platforms is a skill published in the GitHub repository gmh5225/awesome-skills (48 stars, last pushed 2d ago), licensed MIT. It adds 33 tokens to every session and 769 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 2026-08-30.
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