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 rjmurillo/ai-agents --skill windows-image-updatergit clone --depth 1 https://github.com/rjmurillo/ai-agentsWrote 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/rjmurillo/ai-agents/windows-image-updater)<a href="https://agentmods.dev/skills/rjmurillo/ai-agents/windows-image-updater"><img src="https://agentmods.dev/badge/skills/rjmurillo/ai-agents/windows-image-updater/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/rjmurillo/ai-agents/windows-image-updater"><img src="https://agentmods.dev/badge/skills/rjmurillo/ai-agents/windows-image-updater.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 | $0.00063 | $0.03427 |
| Opus 5.5 | $0.00025 | $0.01371 |
| Sonnet 5.5 | $0.00013 | $0.00685 |
| Haiku 4.5 | $0.00006 | $0.00343 |
Grade A, and why
windows-image-updater 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.
How it starts
The opening of the file, as written. The whole thing — 402 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Windows Image Updater
Automates the end-to-end workflow for migrating Windows container images (e.g., LTSC2019 → LTSC2022) in OneBranch pipeline repositories. Handles package bumping, config regeneration, build validation, and PR creation.
Triggers
update windows image: start the full migration workflowfix ltsc2019 warning: triggered by OneBranch EOL warningmigrate onebranch image: alternative phrasingbump AdoPipelineGeneration: package-specific triggerwindows container image update for {repo}: repo-specific trigger
Quick Reference
| Input | Output | Duration |
|---|---|---|
| ADO repository (URL or local path) | Draft PR with updated pipeline ymls, passing pipelines | 30-60 min |
Prerequisites
Required Knowledge
| Term | Definition |
|---|---|
| OneBranch | Microsoft's CI/CD build platform used for official builds and releases |
| ConfigGen | Configuration Generation tool that produces pipeline YAML files from package definitions |
| Topology project | A .NET project in resources repos that generates pipeline configs when run |
| LTSC | Long-Term Servicing Channel, a Windows release model (e.g., LTSC2019, LTSC2022) |
| Buddy build | Pre-merge validation pipeline that builds and tests changes before merge |
| Buddy release | Pre-merge pipeline that validates the release process before merge |
| CPM | Central Package Management, a NuGet feature where all versions are in Directory.Packages.props |
Required Tools
| Tool | Purpose | Verify |
|---|---|---|
| Git | Version control | git --version |
| .NET SDK | Build and run .NET projects | dotnet --version |
| ADO access | Repository write access, PR creation rights | az repos list |
Configuration
| Parameter | Default | Description |
|---|---|---|
| Old image pattern | ltsc2019 |
Pattern to detect in pipeline yml files |
| Expected new image | ltsc2022 |
Expected replacement (for verification) |
| Package name | ConfigurationGeneration.AdoPipelineGeneration |
NuGet package to bump |
| Branch name | feat/windows-image-update |
Feature branch name |
| Props file | Directory.Packages.props |
Primary package props file (fallback: Packages.props) |
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 Changed · +7 lines 9b066965625b
- 1mo ago Changed · +168 lines a351b1ec7545
- 1mo ago First seen · 227 lines · 63 tokens per session scan A 5b0330798cb4
windows-image-updater is a skill published in the GitHub repository rjmurillo/ai-agents (49 stars, last pushed today), licensed MIT. It adds 63 tokens to every session and 3,427 once invoked, about $0.0003 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 2026-09-03.
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