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 fpindej/netrock --skill add-options-classgit clone --depth 1 https://github.com/fpindej/netrockWrote 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/fpindej/netrock/add-options-class)<a href="https://agentmods.dev/skills/fpindej/netrock/add-options-class"><img src="https://agentmods.dev/badge/skills/fpindej/netrock/add-options-class/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/fpindej/netrock/add-options-class"><img src="https://agentmods.dev/badge/skills/fpindej/netrock/add-options-class.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00009 | $0.00283 |
| Opus 5.5 | $0.00004 | $0.00113 |
| Sonnet 5.5 | $0.00002 | $0.00057 |
| Haiku 4.5 | $0.00001 | $0.00028 |
Grade A, and why
add-options-class 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
Adds a typed options/configuration class.
Steps
- Create in the appropriate layer:
- Infrastructure:
src/backend/MyProject.Infrastructure/{Area}/Options/{Name}Options.cs - WebApi:
src/backend/MyProject.WebApi/Options/{Name}Options.cs
- Infrastructure:
- Structure:
/// <summary> /// Configuration for {area}. Maps to "{SectionName}" in appsettings.json. /// </summary> public sealed class {Name}Options { public const string SectionName = "{Section}"; /// <summary> /// Gets or sets the ... /// </summary> [Required] public string Value { get; init; } = string.Empty; } - Add section to
appsettings.json(andappsettings.Development.jsonif dev differs - dev/test appsettings excluded from production publish viaStripDevConfig) - Register in DI extension:
services.AddOptions<{Name}Options>() .BindConfiguration({Name}Options.SectionName) .ValidateDataAnnotations() .ValidateOnStart(); - Update
docs/before-you-ship.mdif this is a must-configure production setting
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 · 38 lines · 9 tokens per session scan A d9a5b6f8828c
add-options-class is a skill published in the GitHub repository fpindej/netrock (234 stars, last pushed yesterday), licensed MIT. It adds 9 tokens to every session and 283 once invoked, about $0.0000 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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