using-axis

using-axis is a skill for Claude Code, Codex from netlify/axis. It costs 65 tokens per session (4,680 once invoked), scanned A, original, MIT.

An operator's guide for AXIS, a framework that runs synthetic tests with AI agents and reports an Agent Experience Index Score.

In plain words
What is it for?
Use it to initialize AXIS, run scenarios with selected agents, compare runs, manage baselines, and interpret scores.
Why use it?
It explains how to run tests, compare results, investigate regressions, and understand where AXIS stores its reports.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex.

Good fit Use it to initialize AXIS, run scenarios with selected agents, compare runs, manage baselines, and interpret scores.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/netlify/axis/using-axis
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 netlify/axis --skill using-axis
Clone the repo
git clone --depth 1 https://github.com/netlify/axis

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 using-axis

README.md
[![agentmods](https://agentmods.dev/badge/skills/netlify/axis/using-axis/github.svg)](https://agentmods.dev/skills/netlify/axis/using-axis)
Your own site
<a href="https://agentmods.dev/skills/netlify/axis/using-axis"><img src="https://agentmods.dev/badge/skills/netlify/axis/using-axis/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 using-axis

Your own site · 80×15
<a href="https://agentmods.dev/skills/netlify/axis/using-axis"><img src="https://agentmods.dev/badge/skills/netlify/axis/using-axis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,680 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 5 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Rogue Agent · line 31
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
  • high Anti-Refusal · line 122
    Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.
    Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
  • medium MCP Rug Pull · line 20
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 24
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 221
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 5.1 $0.00065 $0.04680
Opus 5.5 $0.00026 $0.01872
Sonnet 5.5 $0.00013 $0.00936
Haiku 4.5 $0.00006 $0.00468

Measured 15d ago against content hash debfe4697e26, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

using-axis 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 15d 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.

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.

skills/using-axis/SKILL.md · 279 lines

How it starts

The opening of the file, as written. The whole thing — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Using AXIS

AXIS (Agent Experience Index Score) is a synthetic testing framework for AI agents. This skill is the operator's guide: how to invoke the CLI, where AXIS writes files, and how to read the scoring output.

For authoring scenarios and axis.config.json, see the configure-axis skill.

When to use this skill

Trigger phrases include "run AXIS", "run the ask suite", "what does --profile do", "compare runs", "explain this score", "which scenario regressed", "set a baseline", "where does AXIS put its reports", "what does this dimension mean".

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

CLI commands

The binary is axis (or npx @netlify/axis without a global install).

axis init

Scaffold axis.config.json and a sample scenario, then install AXIS skills via npx skills.

Flag Purpose
-s, --scenarios <path> Scenarios directory (default ./scenarios)
-a, --agent <names> Comma-separated agents (e.g. claude-code,codex)
--format <format> json (default), js, or ts
-f, --force Overwrite existing files
--no-skills Skip the automatic skills install

axis run

Execute every scenario against every configured agent in isolated workspaces, score the results, and write a report.

Flag Purpose
-c, --config <path> Config path (default discovers axis.config.{json,js,ts,mjs})
-s, --scenario <keys> Comma-separated keys with glob support (cms/*, hello-*)
-a, --agent <names> Comma-separated agent names with glob support (claude-code|*)
--scenarios / --agents Plural aliases for the two options above
-p, --profile <name> Apply a named overlay from the config's profiles map
--concurrency <n> Max parallel jobs (default 15)
--runs <n> Run each pair n times; must be odd (default 1, or settings.runs)
--failed [reportId] Re-run only failed pairs from a prior report (default latest)
--no-score Skip the LLM judges, write raw results only
--compare-baseline [name] Diff results against a saved baseline (default main)
--refresh-skills Force re-clone of remote skills cached under .axis/skills-cache/
--refresh-repos Force re-clone of repos cached under .axis/repos/ for copy actions
--json Emit JSON to stdout instead of the live TTY display
-v, --verbose Per-step logging
--debug Capture raw agent stdout into {agent}.debug.ndjson
-o, --output-dir <dir> Also write the report manifest to this directory

Read the full file on GitHub · 279 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. 15d ago Changed · +47 lines debfe4697e26
  2. 17d ago Changed · +7 lines · +7 tokens per session 14f78f8560f8
  3. 1mo ago First seen · 225 lines · 58 tokens per session scan A 993b47dce96a

Subscribe to this mod's changes

using-axis is a skill published in the GitHub repository netlify/axis (64 stars, last pushed yesterday), licensed MIT. It adds 65 tokens to every session and 4,680 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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