diagrams

diagrams is a skill for Claude Code from ivanhoinacki/team-exp-claude-config. It costs 54 tokens per session (1,535 once invoked), scanned A, original, MIT.

A standard for creating technical diagrams with PlantUML, a text-based language for describing diagrams. It covers flowcharts, sequences, system architecture, and data relationships in project documentation.

In plain words
What is it for?
Use it to document processes, interactions between services, system architecture, database entities, and other technical relationships.
Why use it?
It keeps diagrams editable, versionable, and consistent across documentation instead of relying on screenshots or different diagram formats.

Skill for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; reads .claude/ paths.

Good fit Use it to document processes, interactions between services, system architecture, database entities, and other technical relationships.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ivanhoinacki/team-exp-claude-config/diagrams
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 ivanhoinacki/team-exp-claude-config --skill diagrams
Clone the repo
git clone --depth 1 https://github.com/ivanhoinacki/team-exp-claude-config

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 diagrams

README.md
[![agentmods](https://agentmods.dev/badge/skills/ivanhoinacki/team-exp-claude-config/diagrams/github.svg)](https://agentmods.dev/skills/ivanhoinacki/team-exp-claude-config/diagrams)
Your own site
<a href="https://agentmods.dev/skills/ivanhoinacki/team-exp-claude-config/diagrams"><img src="https://agentmods.dev/badge/skills/ivanhoinacki/team-exp-claude-config/diagrams/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 diagrams

Your own site · 80×15
<a href="https://agentmods.dev/skills/ivanhoinacki/team-exp-claude-config/diagrams"><img src="https://agentmods.dev/badge/skills/ivanhoinacki/team-exp-claude-config/diagrams.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,535 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 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 5.1 $0.00054 $0.01535
Opus 5 $0.00027 $0.00767
Sonnet 5 $0.00011 $0.00307
Haiku 4.5 $0.00005 $0.00153

Measured 11d ago against content hash 84b333486673, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

diagrams 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 11d 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/diagrams/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Diagrams Standard (PlantUML)

All diagrams in documentation MUST use PlantUML. No Mermaid, no ASCII art, no external image tools. PlantUML is the single standard for all visual documentation.

Where and How

Context Format Tool
Obsidian vault (any .md) ```plantuml code block with @startuml/@enduml Obsidian PlantUML plugin renders live
GitHub PR body ![Title](PNG URL) python3 ~/.claude/scripts/plantuml_encode.py /tmp/diagram.puml
Confluence ```plantuml code block in the Obsidian source file Convert to PNG only when publishing

Diagram Popup plugin (installed): All rendered diagrams (PlantUML, Mermaid, Graphviz) can be opened in a draggable, zoomable popup in Obsidian. This means:

  • Complex diagrams are viable in vault notes (user can zoom to read details)
  • No need to simplify diagrams for readability at inline scale
  • Architecture diagrams, large sequence diagrams, and entity models can include full detail

Rules:

  • NEVER generate PNG files for Obsidian vault documents. The plugin renders the code blocks directly.
  • ALWAYS keep PlantUML source in the Obsidian file (editable, versionable).
  • For GitHub PRs: extract PlantUML blocks to /tmp/<name>.puml, encode to PNG URL, replace in PR body. Keep source in Obsidian.
  • Diagrams ALWAYS in English, regardless of the document language.

When to Include Diagrams

Document type Required diagrams Optional
Feature discovery Sequence (main flow) C4 Context
Implementation plan Sequence (main flow), Data Model Decision Flow, C4 Component
Investigation/Bug Sequence (failure flow) Before/After state
PR Notes Sequence (what changed) Data Model (if schema changed)
Confluence doc Architecture Overview, Sequence, Data Model Decision Flow, Data Flow
Runbook C4 Context, C4 Container C4 Component
Test plan Sequence (test scenario flow) Decision Flow
ADR C4 Component (options comparison) Sequence (proposed flow)

Read the full file on GitHub · 155 lines

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. 11d ago First seen · 155 lines · 54 tokens per session scan A 84b333486673

Subscribe to this mod's changes

diagrams is a skill published in the GitHub repository ivanhoinacki/team-exp-claude-config (2 stars, last pushed 1mo ago), licensed MIT. It adds 54 tokens to every session and 1,535 once invoked, about $0.0003 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 2026-08-31.

Related

Other skills, from other repositories

me-card

Render the user's saved /.me/ context as a single ASCII-art infographic card. Use when the user asks to "show my info", "print my card", "render my profile", "me card", "ascii infographic of my dot-me", or invokes the /me-card shortcut. Read-only — never writes to /.me/.

thebestmensch/dot-me · 76 tokens

data-charts-tako

Search and visualize the world's data - get charts, insights, and embeddable knowledge cards for finance, economics, demographics, sports, and more.

gooseworks-ai/goose-skills · 35 tokens

apollo-lead-finder

Two-phase Apollo.io prospecting: free People Search to discover ICP-matching leads, then selective enrichment to reveal emails/phones (credits per contact). Creates Apollo lists. Deduplicates against existing contacts by LinkedIn URL.

gooseworks-ai/goose-skills · 51 tokens

monorepo-management

Master monorepo management with Turborepo, Nx, and pnpm workspaces to build efficient, scalable multi-package repositories with optimized builds and dependency management. Use when setting up monorepos, optimizing builds, or managing shared dependencies.

wshobson/agents · 54 tokens

browse-and-evaluate

Use when exploring the ai-agent-skills catalog to find, compare, and evaluate skills before installing. Always use --fields to limit output size and --dry-run before committing to an install.

MoizIbnYousaf/Ai-Agent-Skills · 43 tokens

render-airdrop-carousel

Assemble a viral iOS "AirDrop" notification-carousel video ad (≈6–8s, 9:16) from a brand line plus 6–16 real product photos — a native AirDrop share-sheet card ("Brand would like to share a · Decline / Accept") springs up and its preview window CYCLES through the products, landing on a range/lineup payoff with an…

gooseworks-ai/goose-skills · 207 tokens