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validate

validate is a skill for Claude Code from zby/llm-do. It costs 61 tokens per session (2,747 once invoked), scanned A, original, no licence file.

A checker for whether notes follow defined templates and contain the required information.

In plain words
What is it for?
It is for checking one note or all notes against a note schema, which is a set of rules for their structure and content.
Why use it?
It points out missing fields, invalid values, weak descriptions, and broken links without stopping you from saving the note.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

not rated 21repo 8mo ago A scan 61 tokens custom licence

Good fit It is for checking one note or all notes against a note schema, which is a set of rules for their structure and content.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zby/llm-do/arscontexta-validate
View source ↗ zby/llm-do
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 zby/llm-do --skill arscontexta-validate
Clone the repo
git clone --depth 1 https://github.com/zby/llm-do

Made for: Claude Code.

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/zby/llm-do/arscontexta-validate/github.svg)](https://agentmods.dev/skills/zby/llm-do/arscontexta-validate)
Your own site
<a href="https://agentmods.dev/skills/zby/llm-do/arscontexta-validate"><img src="https://agentmods.dev/badge/skills/zby/llm-do/arscontexta-validate/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 validate

Your own site · 80×15
<a href="https://agentmods.dev/skills/zby/llm-do/arscontexta-validate"><img src="https://agentmods.dev/badge/skills/zby/llm-do/arscontexta-validate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,747 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 unknown 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 $0.00061 $0.02747
Opus 5.5 $0.00024 $0.01099
Sonnet 5.5 $0.00012 $0.00549
Haiku 4.5 $0.00006 $0.00275

Measured 2mo ago against content hash c227659c43eb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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.

arscontexta/skills/arscontexta-validate/SKILL.md · 311 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 2mo ago First seen · 311 lines · 61 tokens per session scan A c227659c43eb

Subscribe to this mod's changes

validate is a skill published in the GitHub repository zby/llm-do (21 stars, last pushed 8mo ago), with no licence file. It adds 61 tokens to every session and 2,747 once invoked, about $0.0002 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.

LLMWriting and docsharnessrecursion
Related

validate compared with skills from other repositories

validate next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
validatezby/llm-doSkill218mo agononeA61Claude Code
building-pydantic-ai-agentspydantic/pydantic-aiSkill21kyesterdayMITA92Claude Code, Codex
pydantic-ai-harnesspydantic/pydantic-aiSkill21kyesterdayMITA197Claude Code, Codex
harness-creatorwalkinglabs/learn-harness-engineeringSkill23k15d agoMITA142Codex
migrating-langchain-to-pydantic-aipydantic/pydantic-aiSkill21kyesterdayMITA100Codex
migrating-vercel-ai-sdk-and-eve-to-pydantic-aipydantic/pydantic-aiSkill21kyesterdayMITA107Codex
migrating-claude-agent-sdk-to-pydantic-aipydantic/pydantic-aiSkill21kyesterdayMITA90Codex