Build an Agent from scratch, pick a model | ag2-quickstart | Agent, ModelConfig, ask() / reply.ask() chaining, providers, env vars |
| Give the Agent a custom Python tool | ag2-add-custom-tool | @tool, sync/async, ToolResult, Context, Inject, Variable, Depends |
| Use shipped tools (web search, code exec, MCP, etc.) | ag2-use-builtin-tools | WebSearchTool, WebFetchTool, CodeExecutionTool, MCPServerTool, ImageGenerationTool, MemoryTool, FilesystemToolkit, DuckDuckSearchTool, ExaToolkit, TavilySearchTool |
| Run shell commands from an agent | ag2-shell-tool | SandboxShellTool + LocalEnvironment (any provider), provider-side ShellTool (OpenAI Responses), sandboxing (allowed/blocked/ignore/readonly) |
| Get typed Pydantic / dataclass output | ag2-structured-output | response_schema=, ResponseSchema, @response_schema, PromptedSchema, reply.content(), retries |
| Multi-agent: parallel subtasks or named delegates | ag2-subagent-delegation | tasks=TaskConfig(), run_subtasks(parallel=True), Agent.as_tool(), persistent_stream |
| Pause for human input or gate a tool with approval | ag2-hitl | context.input(), hitl_hook, approval_required() middleware |
| Logging, retry, history-trim, custom interception | ag2-middleware | BaseMiddleware, LoggingMiddleware, RetryMiddleware, HistoryLimiter, TokenLimiter, tool middleware |
| Test agents and tools | ag2-testing | TestConfig, mocking LLM responses, simulating ToolCallEvent |
| Evaluate / benchmark an agent offline, CI gate, scorers | ag2-evaluation | Suite, run_agent, final_answer_matches / tool_called / agent_judge, @scorer, RunResult, TestConfig, evaluate_traces, diff().regressions |
| Compare models / prompts — leaderboard or head-to-head | ag2-eval-comparison | run_variants (Variants({name: Agent}, axis=...)), run_pairwise + pairwise_judge (win-rate, Wilson CI, flips, κ), human_pairwise |
| Persistent memory across runs, history compaction, assembly | ag2-knowledge-and-memory | KnowledgeStore, KnowledgeConfig, WorkingMemoryAggregate, AssemblyPolicy, SlidingWindowPolicy, TokenBudgetPolicy, TailWindowCompact, SummarizeCompact |
| Observability, alerts, halts | ag2-observers-and-alerts | BaseObserver, TokenMonitor, LoopDetector, EventWatch, CadenceWatch, AlertPolicy, HaltEvent |
| Send images / audio / video / PDFs in | ag2-multimodal-input | ImageInput, AudioInput, VideoInput, DocumentInput, FilesAPI |
| Web frontend via the AG-UI protocol | ag2-ag-ui | AGUIStream, FastAPI mount, CopilotKit |
| Serve an agent as an MCP server (server side) | ag2-mcp | MCPServer, stdio / HTTP, prompts, resources, SessionConfig, AskContext |
| Expose an agent over the A2A protocol | ag2-a2a | A2AServer, build_jsonrpc / build_rest / build_grpc, AgentCard, A2AConfig (consume remote) |
| Realtime voice / live audio (talking agent, STT, TTS) | ag2-live | LiveAgent, GeminiRealTimeConfig / OpenAIRealTimeConfig, SoundDeviceRecorder / Player, OpenAITranscriber, TTSObserver |
| OpenTelemetry traces / metrics | ag2-telemetry | TelemetryMiddleware, GenAI semconv attributes, content capture |
