chalk-interner

chalk-interner is a skill for Claude Code from elasticdotventures/_b00t_. It costs 0 tokens per session (616 once invoked), scanned A, original, no licence file.

A Rust type-design pattern that separates a stable type handle from the detailed data behind it. A trait connects the handle to its stored form without exposing how that storage works to users.

In plain words
What is it for?
Use it when designing interned Rust types, where many references should share stored type data efficiently.
Why use it?
It lets the storage strategy change without requiring code that uses the type to change.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the b00t plugin — 58 skills, 1 command, 27 agents, 7 MCP servers, 2 plugins shipped together

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/elasticdotventures/_b00t_/chalk-interner
Any agent
npx skills add elasticdotventures/_b00t_ --skill chalk-interner
Clone the repo
git clone --depth 1 https://github.com/elasticdotventures/_b00t_

Made for: Claude Code.

Or install b00t, the plugin that ships this one along with the rest of its 58 skills, 1 command, 27 agents, 7 MCP servers, 2 plugins.

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 chalk-interner

README.md
[![agentmods](https://agentmods.dev/badge/skills/elasticdotventures/_b00t_/chalk-interner.svg)](https://agentmods.dev/skills/elasticdotventures/_b00t_/chalk-interner)
Your own site
<a href="https://agentmods.dev/skills/elasticdotventures/_b00t_/chalk-interner"><img src="https://agentmods.dev/badge/skills/elasticdotventures/_b00t_/chalk-interner.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 616 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00616
Opus 5 $0.00000 $0.00308
Sonnet 5 $0.00000 $0.00123
Haiku 4.5 $0.00000 $0.00062

Measured 2d ago against content hash b21eabfebe0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

chalk-interner 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 2d 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/chalk-interner/SKILL.md · 37 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. 2d ago First seen · 37 lines · 0 tokens per session scan A b21eabfebe0a

Subscribe to this mod's changes

chalk-interner is a skill published in the GitHub repository elasticdotventures/_b00t_ (14 stars, last pushed yesterday), with no licence file. It costs nothing until one of its globs matches a file; then it loads 616 tokens. 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 2026-09-03.