configure-axis

A guide for setting up AXIS, a testing framework that runs AI agents on shared tasks and scores their results. It creates task scenario files and an axis.config.json file describing the agents, scenarios and shared settings.

In plain words
What is it for?
Use it to initialise AXIS, add a test scenario, create or edit axis.config.json, or prepare an agent evaluation.
Why use it?
It helps turn an agent-testing idea into the configuration and scenario files AXIS needs, while preserving an existing setup when one is already present.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/netlify/axis/configure-axis
Any agent
npx skills add netlify/axis --skill configure-axis
Clone the repo
git clone --depth 1 https://github.com/netlify/axis

Made for: Claude Code, Codex.

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,724 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. Scan, not verified.
Origin original No closer match found 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 $0.00052 $0.04724
Opus 5 $0.00026 $0.02362
Sonnet 5 $0.00010 $0.00945
Haiku 4.5 $0.00005 $0.00472

Measured 3d ago against content hash 5c5d34c45a0b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

configure-axis scanned grade C with 2 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 3d ago.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

"teardown": [{ "action": "run_script", "command": "rm -rf node_modules" }],

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -fsSL https://raw.githubusercontent.com/netlify/axis/main/skills/configure-axis/SKILL.md \
skills/configure-axis/SKILL.md · 382 lines

How it starts

The opening of the file, as written. The whole thing — 382 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Configure AXIS

AXIS (Agent Experience Index Score) is a synthetic testing framework for AI agents. This skill teaches you to author the two files an AXIS user maintains:

  1. Scenarios under scenarios/ (or any path the config points at): one JSON file per task the agent will be asked to perform.
  2. axis.config.json at the project root: which agents to run, where scenarios live, and what is shared across them.

When to use this skill

Trigger phrases include "set up AXIS", "add an AXIS scenario", "write an axis.config.json", "evaluate my agent with AXIS", "score my agent on X".

Before authoring, do this:

  1. Look for an existing axis.config.json (or axis.config.{js,ts}) at the project root. If one exists, read it; do not overwrite without confirmation.
  2. List the existing scenarios directory if present. Match its naming and style.
  3. If no config exists, suggest running npx @netlify/axis init first, or scaffold one yourself using the patterns below.

Conceptual model

For each scenario, AXIS runs every configured agent against the same prompt in an isolated workspace, then scores each run on four dimensions and produces an HTML + JSON report.

  • Goal achievement (default weight 0.4): did the agent satisfy the judge's checks?
  • Environment (0.2): did filesystem / shell / network operations succeed reliably?
  • Service (0.2): did external services (APIs, MCP servers) respond reliably?
  • Agent (0.2): were the agent's decisions sound across every tool call?

Refer to the framework's output as the AXIS Result. The acronym expands to Agent Experience Index Score.

Authoring a scenario

A scenario is a JSON file under the scenarios directory. The file path (without extension, relative to that directory) becomes the scenario's key. Only name, prompt, and judge are required.

The annotated examples below are labeled jsonc for documentation only. They contain // comments and trailing commas. Real .json files do NOT support either. When copying these examples into output, strip every // comment line and every trailing comma. Plain JSON examples (in the Recipes section) are safe to copy verbatim.

Read the full file on GitHub · 382 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. 3d ago First seen · 382 lines · 52 tokens per session scan C 5c5d34c45a0b

Subscribe to this mod's changes

configure-axis is a skill published in the GitHub repository netlify/axis (56 stars, last pushed 11d ago), licensed MIT. It adds 52 tokens to every session and 4,724 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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