AG-UI .NET SDK — Docs Sync

sdks/dotnet/AGENTS.md (coding instructions) and sdks/dotnet/docs/architecture.md (design overview) describe the SDK's structure, naming, and conventions. They drift silently after refactors because nothing fails the build when prose goes stale. This skill reconciles them against the live tree.

Typical drift this catches: a package rename, a moved/removed project, a changed endpoint pattern, or a new sample step that the prose never caught up with. An agent that edits these files from memory re-introduces the same kind of drift, so always derive the truth from the tree first.

Process

1. Establish ground truth from the tree, not from the doc. The authoritative source is sdks/dotnet/AGUI.slnx plus the folder listing — never the prose you are about to edit.
   • Projects: read <Project Path=...> entries from AGUI.slnx.
   • Folders: Get-ChildItem src,tests,samples -Directory.
   • Samples/steps: list samples/GettingStarted/Step* to get the real range.
2. Drift scan — diff each doc claim against the tree. For every concrete claim in AGENTS.md / docs/architecture.md, confirm it against ground truth:
   • Project & package names exist in AGUI.slnx (and in src/, tests/).
   • Symbols the docs name still exist: Select-String -Path src\*\*.cs,samples\*\*.cs -Pattern "<Symbol>".
   • Renamed/removed symbols are GONE everywhere: grep the repo for the old name (e.g. AGUI.Hosting.AspNetCore, TypedResults.ServerSentEvents); a hit in prose-only is the drift to fix.
3. Fix surgically. Edit only the stale lines. Match existing tone, tables, and code-fence style. Do not restructure or invent conventions.
4. Verify. Re-grep every symbol/name you wrote to confirm it exists in the tree. Optionally dotnet build from sdks/dotnet/ if you touched code-style or build claims.

Drift checklist (the claims that rot)

Deriving ground truth (commands, not a snapshot)

Don't trust any embedded list (including this skill). Re-derive the current state from the tree every time:

# from sdks/dotnet/
Select-String -Path AGUI.slnx -Pattern '<Project Path'   # all projects
Get-ChildItem src,tests,samples -Directory               # folders
Get-ChildItem samples/GettingStarted -Directory -Filter Step*  # sample step range
Select-String -Path src\*\*.csproj -Pattern Microsoft.AspNetCore  # must be empty (no ASP.NET in src/)

A couple of durable facts that are easy to get wrong: the server package is AGUI.Server (ASP.NET hosting glue lives only in samples/AGUI.Samples.Shared), and the integration-test project name stays AGUI.Hosting.AspNetCore.IntegrationTests even though its types are in namespace AGUI.Server.IntegrationTests. Everything else, derive from the commands above.

❌ Critical anti-patterns

1. Never edit the docs from memory or from the doc's own current text. The stale prose is exactly what misleads you. Derive every name from AGUI.slnx and the folder listing first.
2. Never rename a symbol in prose without grepping the whole tree for the old name — a lingering reference (or an unchanged code fence) is silent drift.
3. Don't invent conventions or restructure the docs. Reconcile only what the tree proves changed; keep tables, tone, and code-fence style intact.
4. Don't confuse a kept project name with a moved concept. The integration test project is still AGUI.Hosting.AspNetCore.IntegrationTests even though the src package was renamed to AGUI.Server.

Files to mine

sdks/dotnet/AGENTS.md, sdks/dotnet/docs/architecture.md, sdks/dotnet/AGUI.slnx, sdks/dotnet/Directory.Build.props, Directory.Build.targets, Directory.Packages.props, and the src/, tests/, samples/ folder trees.