AG-UI: the Agent-User Interaction Protocol. Bring Agents into Frontend Applications.
Skill Claude CodeCodex
Keep the AG-UI .NET SDK at feature and wire-format PARITY with the canonical reference SDKs (TypeScript is the source of truth; Python is types/encoder only). USE FOR: porting a feature/event/behavior that landed in the TS (or Python) SDK into .NET, verifying the .NET wire format (JSON, SSE, protobuf) matches the…
Skill Claude CodeCodex
Run the AG-UI Dojo demo viewer locally and wire the AG-UI .NET SDK in as a dojo integration. USE FOR: starting the dojo app (apps/dojo), running the .NET dojo backend (AGUIDojoServer), registering or modifying the ag-ui-dotnet integration (agents.ts/menu.ts/env.ts/files.json), running the dojo Playwright e2e suite for…
Skill Claude CodeCodex
Keep the AG-UI .NET SDK docs (sdks/dotnet/AGENTS.md and docs/architecture.md) in sync with the real code tree after structural changes. USE FOR: "update AGENTS.md / docs/architecture.md", "check the dotnet docs are current", verifying docs after a .NET SDK refactor (package rename, added/removed project, changed…
Skill Claude CodeCodex
Review C#/.NET code changes to the AG-UI .NET SDK (sdks/dotnet/) against its specific conventions and architectural rules — AOT serialization, the "no ASP.NET in src/" boundary, the PublicAPI analyzer workflow, wire compatibility with the TypeScript reference, and the house style (sealed/no-records/ConfigureAwait).…
Skill Claude CodeCodex
Author cross-language interop tests that verify the AG-UI .NET SDK is wire-compatible with the TypeScript SDK — a Vitest TS client driving a C# CrossLanguage.TestServer over HTTP, both directions, including protobuf byte-parity against @ag-ui/proto. USE FOR: adding or modifying cross-language interop coverage…
Skill Claude CodeCodex
Orchestrator/hub for implementing a feature or change in the AG-UI .NET SDK (sdks/dotnet). USE FOR: "what's the workflow", "what order do I do things in", "how do I implement a feature in the .NET SDK", starting any non-trivial AG-UI .NET SDK change, planning the end-to-end steps and definition-of-done (code + AOT…
Skill Claude CodeCodex
Write integration tests for the AG-UI .NET SDK. USE FOR: adding a new AG-UI event type and covering it end-to-end, testing SSE or protobuf streaming through the hosting pipeline, verifying AGUIChatClient maps events to ChatResponseUpdate, multi-turn conversation tests, parameterizing a test over Json/Protobuf…
Skill Claude CodeCodex
Add a GettingStarted sample Step (a Server/Client pair) to the AG-UI .NET SDK that demonstrates one protocol feature the way we want users to write it. USE FOR: adding a new samples/GettingStarted/StepNN Server+Client pair, wiring it into AGUI.slnx and the integration-test project, giving it a deterministic…
Skill Claude CodeCodex
Author, update, and validate the AG-UI .NET SDK documentation pages on the docs.ag-ui.com Mintlify site (under docs/). USE FOR: adding or editing a ".NET SDK" docs page (sdk/dotnet//.mdx), wiring it into the docs.json ".NET" nav group and global anchor, running the docs site locally with mintlify dev…
Skill Claude CodeCodex
Add or modify a wire transport / event-stream encoding in the AG-UI .NET SDK — the protobuf codec, the SSE format, content negotiation, the JsonElement-to-protobuf Value bridge, or a brand new encoding — while preserving Native AOT compatibility and byte-level wire compatibility with @ag-ui/proto. USE FOR: working on…
Skill Claude CodeCodex
Author unit tests for the AG-UI .NET SDK (the .UnitTests projects), following the SDK's serialization and compatibility conventions. USE FOR: adding unit-test coverage for a new type/method in AGUI.Abstractions/Formatting/Protobuf/Client/Server, event serialization round-trips, JsonDocument property-name assertions…
Skill Claude CodeCodex
Add or modify a wire/protocol type in the AG-UI .NET SDK AGUI.Abstractions package — a new event, message, or content-part type, the AOT source-gen serializer context, or a polymorphic JSON converter, keeping it AOT-safe, JSON-wire-compatible with the TypeScript reference, and PublicAPI-clean. USE FOR: adding an AG-UI…
Skill Claude CodeCodex
Manually validate a running web app or docs site with the Playwright MCP server — navigate pages, assert headings/text/status, check for console errors, hover/click to exercise interactions, take screenshots for human review, and verify visual details such as an icon's color in light vs dark mode by reading computed…
Skill Claude CodeCodex
Expose client-side (frontend) tools to an AG-UI agent with the AG-UI .NET SDK — C# functions that run in the CLIENT app (read local state, GPS, UI, device APIs), where the client executes the call and returns the result so the run continues. USE FOR: declaring an AIFunction in the client and passing it via…
Skill Claude CodeCodex
Pause an AG-UI agent run for a human, then resume it, with the AG-UI .NET SDK — gate a sensitive tool behind explicit approval, or interrupt a run to collect free-form input from the user before continuing. USE FOR: requiring human approval before a tool executes (ApprovalRequiredAIFunction +…
Skill Claude CodeCodex
Send images and other binary/file content to an AG-UI agent with the AG-UI .NET SDK — attach pictures (or audio, PDFs, etc.) to a user message so a multimodal model can see them. USE FOR: building a user ChatMessage with mixed content parts (TextContent plus DataContent for inline bytes, or UriContent for a hosted…
Skill Claude CodeCodex
Use the protobuf wire transport (instead of the default Server-Sent Events) for an AG-UI connection with the AG-UI .NET SDK — a compact binary event stream negotiated via the Accept header. USE FOR: making an AGUIChatClient prefer protobuf by wiring an AGUIEventStreamHandler with ProtobufEventStreamFormatter (then…
Skill Claude CodeCodex
Surface a reasoning/thinking model's intermediate thoughts separately from its final answer with the AG-UI .NET SDK — so a client can show the agent "thinking" before it responds, and handle that reasoning trace correctly across turns. USE FOR: distinguishing the model's reasoning trace from its answer on the client…
Skill Claude CodeCodex
Expose server-side (backend) tools an AG-UI agent can call with the AG-UI .NET SDK — C# functions that run on the server, where the server executes the call and feeds the result back to the model. USE FOR: defining an AIFunction with AIFunctionFactory.Create and registering it on the server's IChatClient via…
Skill Claude CodeCodex
Share structured, evolving state between an AG-UI agent and its client with the AG-UI .NET SDK — the client seeds state on the request, the server reads it, mutates it, and streams the updated state back as snapshots or deltas alongside the chat. USE FOR: sending initial/working state from the client via…
Skill Claude CodeCodex
Get started with the AG-UI .NET SDK: bootstrap and run your first streaming-chat app (client + server) with the AG-UI .NET NuGet packages (AGUI.Client, AGUI.Server, AGUI.Formatting, AGUI.Abstractions). USE FOR: which packages to install and how to wire them; constructing an AGUIChatClient against an endpoint and…
Skill Claude CodeCodex
Diagnose and fix problems in an AG-UI .NET app built on the AG-UI SDK — when streaming chat, tools, state, interrupts, or the transport misbehave. USE FOR: the agent forgetting earlier turns / history truncated; update.ConversationId always null; state or lifecycle updates that never arrive; a tool throwing at runtime…
Skill Claude CodeCodex
Use when adding A2UI rendering to any AG-UI-supported framework or custom AG-UI application, scaffolding an AG-UI app that should render A2UI, adapting an AG-UI integration to emit A2UI surfaces, or wiring the AG-UI A2UI middleware/toolkit with a compatible renderer.