d2

d2 is a skill for Claude Code from diegomarino/claude-toolshed. It costs 11 tokens per session (2,211 once invoked), scanned B, original, no licence file.

A routing component for choosing among D2 diagram skills. D2 is a text-based language for describing diagrams.

In plain words
What is it for?
Use it when a task involves creating, editing, or working with D2 diagrams.
Why use it?
It directs diagram-related requests to the appropriate D2 support without requiring you to choose a skill yourself.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the d2 plugin — 7 skills, 1 agent shipped together

Good fit Use it when a task involves creating, editing, or working with D2…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/diegomarino/claude-toolshed/d2
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 diegomarino/claude-toolshed --skill d2
Clone the repo
git clone --depth 1 https://github.com/diegomarino/claude-toolshed

Made for: Claude Code.

Or install d2, the plugin that ships this one along with the rest of its 7 skills, 1 agent.

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 d2

README.md
[![agentmods](https://agentmods.dev/badge/skills/diegomarino/claude-toolshed/d2.svg)](https://agentmods.dev/skills/diegomarino/claude-toolshed/d2)
Your own site
<a href="https://agentmods.dev/skills/diegomarino/claude-toolshed/d2"><img src="https://agentmods.dev/badge/skills/diegomarino/claude-toolshed/d2.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,211 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00011 $0.02211
Opus 5 $0.00005 $0.01105
Sonnet 5 $0.00002 $0.00442
Haiku 4.5 $0.00001 $0.00221

Measured 7d ago against content hash 4dc3f69aa8ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade B, and why

d2 scanned grade B with 1 finding 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 7d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/ensure-deps.sh, scripts/extract_d2.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

PLUGIN_DIR=$(find "$HOME/.claude/plugins/cache" -type d -name "d2" -path "*/skills/d2" 2>/dev/null | head -1)
plugins/d2/skills/d2/SKILL.md · 249 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 7d ago First seen · 249 lines · 11 tokens per session scan B 4dc3f69aa8ab

Subscribe to this mod's changes

d2 is a skill published in the GitHub repository diegomarino/claude-toolshed (58 stars, last pushed 5mo ago), with no licence file. It adds 11 tokens to every session and 2,211 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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