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 aloth/PowerSkills --skill systemgit clone --depth 1 https://github.com/aloth/PowerSkillsWrote 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/aloth/powerskills/system)<a href="https://agentmods.dev/skills/aloth/powerskills/system"><img src="https://agentmods.dev/badge/skills/aloth/powerskills/system/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/aloth/powerskills/system"><img src="https://agentmods.dev/badge/skills/aloth/powerskills/system.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 | $0.00052 | $0.00373 |
| Opus 5.5 | $0.00021 | $0.00149 |
| Sonnet 5.5 | $0.00010 | $0.00075 |
| Haiku 4.5 | $0.00005 | $0.00037 |
Grade A, and why
powerskills-system 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 1mo 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.
What it actually says
PowerSkills — System
Shell commands, process management, system info.
Requirements
- PowerShell 5.1+
Actions
.\powerskills.ps1 system <action> [--params]
| Action | Params | Description |
|---|---|---|
exec |
--command "whoami" [--timeout 30] |
Run a PowerShell command |
info |
System info: hostname, OS, user, domain, arch, uptime | |
processes |
--limit N |
Top processes by CPU (default: 20) |
env |
--name PATH |
Get environment variable value |
Examples
# Run a command
.\powerskills.ps1 system exec --command "Get-Process | Select -First 5"
# System info
.\powerskills.ps1 system info
# Top 10 CPU consumers
.\powerskills.ps1 system processes --limit 10
# Check an env var
.\powerskills.ps1 system env --name COMPUTERNAME
Output Fields
info
hostname, user, domain, os, arch, ps_version, uptime_hours
processes
name, pid, cpu, mem_mb
exec
stdout, stderr, exit_code
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.
- 1mo ago First seen · 58 lines · 52 tokens per session scan A 03719b1fde9f
powerskills-system is a skill published in the GitHub repository aloth/PowerSkills (47 stars, last pushed 1mo ago), licensed MIT. It adds 52 tokens to every session and 373 once invoked, about $0.0002 per session on Opus 5.5. 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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