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 agentmods add agents/stefanthecode/dotnet-ai-toolkit/dotnet-upgrade-agent.usagegit clone --depth 1 https://github.com/StefanTheCode/dotnet-ai-toolkitWhat 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 | $0.00000 | $0.00226 |
| Opus 5 | $0.00000 | $0.00113 |
| Sonnet 5 | $0.00000 | $0.00045 |
| Haiku 4.5 | $0.00000 | $0.00023 |
Grade A, and why
dotnet-upgrade-agent.USAGE 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 2d 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
How to use — .NET Upgrade Agent
What it is. An agent that plans and (with approval) executes a .NET version upgrade across a solution — TFM bumps, breaking-change remediation, obsolete-API replacement, package updates, and per-stage verification.
When to reach for it. Upgrading to a newer .NET (e.g. 6→8→9→10) or migrating target frameworks.
How to use it. Point it at your solution (path or GitHub URL). Example prompts:
- "Upgrade this solution from .NET 6 to .NET 9."
- "Plan a migration to .NET 10 and flag the breaking changes."
- "What obsolete APIs will break when I upgrade?"
Get the best out of it. Let it upgrade one major at a time and verify (build + tests) between steps. Review its plan before it edits — it asks first. It defers deep rewrites to legacy-modernization-assistant.
Won't do. It won't power through a red build or skip verification to finish faster.
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.
- 2d ago First seen · 15 lines · 0 tokens per session scan A c567efcaae2c
dotnet-upgrade-agent.USAGE is an agent published in the GitHub repository StefanTheCode/dotnet-ai-toolkit (19 stars, last pushed 23d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 226 tokens. 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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