validate

validate is a skill for Claude Code, Codex from growthxai/output. It costs 14 tokens per session (77 once invoked), scanned A, original, Apache-2.0.

A project-checking routine that runs linting, a package build, and tests from the project root.

In plain words
What is it for?
Use it to validate changes before sharing or merging them and to report the relevant error when a check fails.
Why use it?
It checks whether code changes still meet the project's style, build, and test requirements, stopping at the first failure.

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/growthxai/output/validate
Any agent
npx skills add growthxai/output --skill validate
Clone the repo
git clone --depth 1 https://github.com/growthxai/output

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 validate

README.md
[![agentmods](https://agentmods.dev/badge/skills/growthxai/output/validate.svg)](https://agentmods.dev/skills/growthxai/output/validate)
Your own site
<a href="https://agentmods.dev/skills/growthxai/output/validate"><img src="https://agentmods.dev/badge/skills/growthxai/output/validate.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 77 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00014 $0.00077
Opus 5 $0.00007 $0.00039
Sonnet 5 $0.00003 $0.00015
Haiku 4.5 $0.00001 $0.00008

Measured 4d ago against content hash 3e6a620888ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

validate 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 4d 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.

.claude/skills/validate/SKILL.md · 13 lines

What it actually says

Run the full validation suite from the project root, stopping on first failure:

  1. npm run lint
  2. npm run build:packages
  3. npm test

Report results concisely. If a step fails, show the relevant error output and stop.

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. 4d ago First seen · 13 lines · 14 tokens per session scan A 3e6a620888ef

Subscribe to this mod's changes

validate is a skill published in the GitHub repository growthxai/output (434 stars, last pushed 5d ago), licensed Apache-2.0. It adds 14 tokens to every session and 77 once invoked, about $0.0001 per session on Opus 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.