TypeScript Documentation

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Pages

• Quick Start Install Ax and run a typed LLM program.
• How Ax Fits Together The Ax stack on one page: signatures, ai(), ax(), flow(), agent(), optimizers, and the AxIR compiler — and how they compose.
• Advanced Start Follow the Ax story through selected runnable examples.
• FAQ Plain-English answers to common Ax questions, plus a glossary: DSPy, GEPA, ACE, RLM, PEEK, AxIR.
• Overview One agent harness at every size: typed signatures, tools, and a grounded runtime session.
• Learn to build reliable AI workflows and agents A hands-on TypeScript course for building dependable AI features, multi-step workflows, tool-using agents, and production automation.
• Overview Provider-backed runnable examples generated from source headers.
• DSPy The Ax take on DSPy-style typed LLM programs.
• Signatures Typed input and output contracts for prompts, schemas, tools, and validation.
• Tools Typed host functions, fn(), namespaces, function groups, and discovery.
• MCP Connect MCP servers as Ax tools for generation, agents, prompts, resources, and runtime workflows.
• MCP Subscriptions Discover an MCP endpoint catalog, select resources, maintain subscriptions, and wake or resume Ax programs safely.
• Event Runtime Wake and resume Ax programs safely from subscriptions, webhooks, timers, queues, and application events.
• Optimization GEPA, Pareto tradeoffs, demos, artifacts, and evaluation.
• Playbook Evolving context playbooks that grow offline from examples and online from feedback.
• LLMs Provider clients, model catalogs, routing, audio, embeddings, thinking, and context caching.
• Telemetry Traces, metrics, usage, costs, optimizer metrics, and production debugging.
• ai() LLM Models Create provider clients and select models.
• ax() Generation Run structured generation with tools, streaming, validation, traces, and usage.
• s() Signatures Parse or build signatures.
• agent() Agents Build agents with tools, child agents, runtime profiles, and context controls.
• flow() Workflows Compose typed programs into multi-step workflows; author or export them as mermaid flowcharts.
• optimize() GEPA Tune programs with the top-level GEPA helper.
• Overview Install language-specific Ax skills for coding agents.
• ai() API Provider, model, routing, media, and embedding APIs.
• ax() API Structured generation APIs.
• s() API Signature and field APIs.
• agent() API Agent, runtime, context, skill, memory, MCP, and RLM APIs.
• flow() API Flow builder, workflow graph, and mermaid APIs.
• optimize() API GEPA optimizer, Pareto, artifact, and evaluation APIs.
• TypeScript Full API Reference Generated TypeDoc API reference.
• Agent Internals This page moved to the Agents section.
• Agents This page moved to the Agents section.