> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nemo/relay/llms.txt.
> For full documentation content, see https://docs.nvidia.com/nemo/relay/llms-full.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/relay/_mcp/server.

# Concepts

Use these pages to understand the NeMo Relay runtime model before applying it in a use-case workflow.

Ownership boundaries for agent runs, requests, workflows, tools, LLM calls, and nested runtime work.

Guardrails and intercepts that sanitize, transform, block, or wrap tool and LLM execution.

Configuration-driven bundles that install reusable middleware, subscribers, and adaptive behavior.

Canonical lifecycle records for scopes, tool calls, LLM calls, marks, subscribers, and exporters.

Consumers for lifecycle events, including logs, traces, trajectories, analytics, and diagnostics.

Integration patterns for frameworks that own invocation boundaries, scheduling, retries, or provider payloads.