# Ax Cpp Agent Rlm

> Use when writing C++ code with `axllm` for RLM executor loops, AxCodeRuntime sessions, runtime envelopes, process runtimes, and optional runtime profiles.

- Skill: `ax-llm/ax-cpp-agent-rlm` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ax-llm/ax-cpp-agent-rlm`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ax-llm/ax-cpp-agent-rlm/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: ax-llm (https://skillmd.com/u/ax-llm)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ax-llm/ax-cpp-agent-rlm

---

# AxAgent RLM Runtime For C++

This skill helps an agent write C++ code with the generated Ax package `axllm`. Use the generated package API, examples, and manifests; do not import TypeScript-only APIs unless you are editing the TypeScript package.

## When To Use

- Wire an AxCodeRuntime or AxCodeSession implementation.
- Use ProcessCodeRuntime or an optional runtime profile for actor-code sessions.
- Explain that generated packages are not TypeScript transpilers; they adapt the Ax runtime contract.

## Package Facts

- Language: C++.
- Package: `axllm`.
- Package API docs: `API.md` and `axir-api.json`.
- Capability manifest: `axir-capabilities.json`.
- Runnable examples: `examples/`.
- Real network support: yes.
- Scripted no-key transport support: yes.
- Runtime profiles: `javascript-quickjs`, `python-pyodide`.

## Core Pattern

```cpp
auto helper = axllm::agent("question:string -> answer:string");
auto out = helper.forward(llm, { {"question", "How should I proceed?"} });
```

## Relevant API Surface

- Agents And RLM: `axllm::agent`, `axllm::AxAgent`, `axllm::AxAgent::add_child_agent`
- Runtime Profiles: `axllm::ProcessCodeRuntime`, `axllm::RuntimeCapabilities`, `axllm::RuntimeEnvelope`, `javascript-quickjs`, `python-pyodide`

## Guardrails

- Start from package examples for exact native syntax before inventing a new call shape.
- Use `provider-api` examples only when the user explicitly has provider credentials available.
- Use `no-key` examples for deterministic local checks and provider request mapping.
- Treat AxIR as the source of generated package truth: if package docs disagree with source code, update the compiler and regenerate packages.
- Do not copy repo-maintainer skills from `tools/*/skills/` into user packages.