lizard: Skill for Claude Code

.agents/skills/lizard-language-support/SKILL.md

lizard-language-support is a skill for Claude Code, Codex from terryyin/lizard. It costs 40 tokens per session (930 once invoked), scanned A, original, no licence file.

A workflow for adding or changing a Lizard language reader, including tokenization and state-machine parsing.

In plain words
What is it for?
Use it to add language support, modify parsing behavior, or change files under lizardlanguages or test/testlanguages.
Why use it?
It provides a focused process for changing how the Lizard tool reads programming languages and for working with its language tests.

Skill for Claude CodeCodex

Written for Claude Code: paths in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is terryyin/lizard's own configuration. It tells Claude Code and Codex how to work on lizard itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything lizard configures →

Reuse

Borrowing it

Nothing to install: this file belongs to terryyin/lizard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/terryyin/lizard/master/.agents/skills/lizard-language-support/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/terryyin/lizard

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 lizard-language-support

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/terryyin/lizard/lizard-language-support"><img src="https://agentmods.dev/badge/skills/terryyin/lizard/lizard-language-support.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 930 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 $0.00040 $0.00930
Opus 5.5 $0.00016 $0.00372
Sonnet 5.5 $0.00008 $0.00186
Haiku 4.5 $0.00004 $0.00093

Measured 1mo ago against content hash 711728e1c77a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lizard-language-support 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 1mo 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.

.agents/skills/lizard-language-support/SKILL.md · 152 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. 1mo ago First seen · 152 lines · 40 tokens per session scan A 711728e1c77a

Subscribe to this mod's changes

lizard-language-support is a skill published in the GitHub repository terryyin/lizard (2,573 stars, last pushed today), with no licence file. It adds 40 tokens to every session and 930 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 2026-09-17.

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