ax-rust-flow

ax-rust-flow is a skill for Claude Code, Codex from ax-llm/ax. It costs 36 tokens per session (2,009 once invoked), scanned A, a copy of ax-cpp-flow, Apache-2.0.

A Rust guide for building workflow graphs from generators, agents, and nested programs with shared state.

In plain words
What is it for?
Use it to define flow nodes, connect their data, set return values, and build provider-backed workflows.
Why use it?
It helps organize multi-step AI work so inputs, outputs, caching, and errors are handled between stages.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to define flow nodes, connect their data, set return values, and build provider-backed workflows.

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Install with agentmods
npx agentmods add skills/ax-llm/ax/ax-rust-flow
About the project

Ax is a TypeScript-first programming framework for building applications with large language models through typed generation, agents, workflows, and optimization tools. It is intended for developers who want one model for LLM programs across TypeScript, Python, Java, C++, Go, Rust, and other runtimes.

ax-llm/ax · 2,894 stars · on GitHub · axllm.dev

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ax-llm/ax --skill ax-rust-flow
Clone the repo
git clone --depth 1 https://github.com/ax-llm/ax

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ax-rust-flow

README.md
[![agentmods](https://agentmods.dev/badge/skills/ax-llm/ax/ax-rust-flow/github.svg)](https://agentmods.dev/skills/ax-llm/ax/ax-rust-flow)
Your own site
<a href="https://agentmods.dev/skills/ax-llm/ax/ax-rust-flow"><img src="https://agentmods.dev/badge/skills/ax-llm/ax/ax-rust-flow/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ax-rust-flow

Your own site · 80×15
<a href="https://agentmods.dev/skills/ax-llm/ax/ax-rust-flow"><img src="https://agentmods.dev/badge/skills/ax-llm/ax/ax-rust-flow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,009 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.02009
Opus 5 $0.00018 $0.01005
Sonnet 5 $0.00007 $0.00402
Haiku 4.5 $0.00004 $0.00201

Measured today against content hash 6c33baae57ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ax-rust-flow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

89% identical to ax-cpp-flow — 86 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

packages/rust/skills/ax-rust-flow/SKILL.md · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AxFlow For Rust

This skill helps an agent write Rust 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

  • Compose generators, agents, and nested flows into a workflow graph.
  • Reason about flow state, node inputs, returns, caching, and errors.
  • Use generated package examples for flow graphs and provider-backed flows.

Package Facts

  • Language: Rust.
  • 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.

Core Pattern

let draft = axllm::ax("topicText:string -> draftText:string")?;
let wf = axllm::flow("docs.coreFlow")
    .execute_with_options(
        "draft",
        draft,
        &json!({"reads": ["topicText"], "writes": ["draftResult", "draftText"]}),
    )
    .returns(json!({"draftText": "draftText"}));

More Patterns

Typed programs

Build each flow node from its own input/output contract.

let classifier = axllm::ax("requestText:string -> route:class \"support, sales, engineering\"")?;
let responder = axllm::ax("requestText:string, route:string -> responseText:string")?;

Class decision

Declare reads and writes so the responder waits for the typed route.

let mut branch_flow = axllm::flow("docs.branchFlow")
    .execute_with_options("classifier", classifier, &json!({"reads": ["requestText"], "writes": ["classifierResult", "route"]}))
    .execute_with_options("responder", responder, &json!({"reads": ["requestText", "route"], "writes": ["responderResult", "responseText"]}))
    .returns(json!({"route": "route", "responseText": "responseText"}));

Fan-out and join

Independent reads place research and audience analysis in one planner group. Owned clients and programs run concurrently; unsupported custom workers use a traced serial fallback.

Read the full file on GitHub · 134 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today Changed · +2 lines 6c33baae57ef
  2. 2d ago Changed · +5 lines 721ffab5e2fa
  3. 3d ago Changed · +18 lines 30f302a90f04
  4. 6d ago First seen · 109 lines · 36 tokens per session scan A 761f617c487e

Subscribe to this mod's changes

ax-rust-flow is a skill published in the GitHub repository ax-llm/ax (2,894 stars, last pushed yesterday), licensed Apache-2.0. It adds 36 tokens to every session and 2,009 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to ax-cpp-flow, differing in 86 lines, and is treated as a copy.

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