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Agent skill

Diagram

by n0an in n0an/VivaDicta

Create ASCII diagrams representing component architecture, data flow, or codebase structure

MITAuto-check passedDevelopment

Install Diagram

skills CLI
$ npx skills add n0an/VivaDicta --skill diagram -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install n0an/VivaDicta diagram --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/n0an/VivaDicta.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/diagram .claude/skills/diagram && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
diagram
GitHub stars
130
Token cost
~385 tokens
SKILL.md length
157 words
Files
2
Skills in repo
20
Repo updated
First seen
Licence
MIT

At a glance

Create ASCII diagrams representing component architecture, data flow, or codebase structure

  • Works in 5 steps: Use ASCII box drawing characters for… → Include labels and arrows to show… → Keep diagrams readable and well-aligned → …
  • Tasks that involve Diagrams
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Diagram is an agent skill from n0an/VivaDicta. Create ASCII diagrams representing component architecture, data flow, or codebase structure

Its SKILL.md is about 390 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).

It sits in Development, covering Diagrams. The repository describes itself as: iOS & watchOS speech-to-text app with AI voice keyboard, on-device RAG, and chat with your notes - powered by Apple Foundation Models, WhisperKit, NVIDIA Parakeet, and 20+ AI…. The licence is MIT.

When your agent uses it

  • Tasks that involve Diagrams

Example prompts

  • “/diagram”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Use ASCII box drawing characters for clean visuals
  2. Include labels and arrows to show relationships
  3. Keep diagrams readable and well-aligned
  4. Add legend if needed for clarity
  5. Focus on the specific component/area requested

What it can do on your machine

Read from SKILL.md and the folder at commit db0b602. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Diagram loads about 385 tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 157 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~25
When it runs · the whole SKILL.md, loaded when a task matches
~385

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from n0an/VivaDicta at commit db0b602, republished under its MIT licence (© n0an). 157 words, ~385 tokens.

Download SKILL.mdSave it as .claude/skills/diagram/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
diagram
description
Create ASCII diagrams representing component architecture, data flow, or codebase structure
disable-model-invocation
true

diagram

You are given the following context: $ARGUMENTS

Instructions

Create a clear ASCII diagram representing the requested component, model, or codebase structure. The user wants to visualize architecture, relationships, or flow.

Guidelines:
  1. Use ASCII box drawing characters for clean visuals
  2. Include labels and arrows to show relationships
  3. Keep diagrams readable and well-aligned
  4. Add legend if needed for clarity
  5. Focus on the specific component/area requested
Diagram Types:
  • Architecture diagrams: Show layers, components, and their relationships
  • Flow diagrams: Illustrate data flow or process sequences
  • Class/Model diagrams: Display properties, methods, and relationships
  • Component diagrams: Show how modules interact
  • State diagrams: Represent state transitions
ASCII Characters to Use:
  • Boxes: ┌ ┐ └ ┘ ─ │ ├ ┤ ┬ ┴ ┼
  • Arrows: → ← ↑ ↓ ↔ ⇒ ⇐
  • Connectors: + - | / \
  • Alternative boxes: +---+ style if Unicode isn't supported
Example Format:
┌─────────────┐
│  Component  │
└──────┬──────┘
       ↓
┌──────┴──────┐
│   Service   │
└─────────────┘

Analyze the codebase structure first, then create the most appropriate diagram type for what's being asked. Include a brief description of what the diagram represents.

Save resulting diagram and explanations in some file in the project

© n0an, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in .agents/skills/diagram of n0an/VivaDicta.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit db0b602

Compare with similar skills

Diagram next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Diagram compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Diagram this skilln0an/VivaDicta130—~385Automated safety check: PassMIT
Archify Diagramstt-a1i/archify81k—~2.9kAutomated safety check: PassMIT
JSON Canvasheyitsnoah/claudesidian2.6k18 repos~3.5kAutomated safety check: PassMIT
Diagram Designcathrynlavery/diagram-design48k1 repos~7.6kAutomated safety check: PassMIT
Fireworks Tech Graphtisfeng/Easydict15k1 repos~1.4kAutomated safety check: PassMIT
Excalidraw Diagramcoleam00/excalidraw-diagram-skill5k2 repos~6.1kAutomated safety check: PassNone

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Categories

Questions about Diagram

What does Diagram do?

Create ASCII diagrams representing component architecture, data flow, or codebase structure. Diagram is an agent skill from n0an/VivaDicta.

When should I use Diagram?

Diagram fits situations like: tasks that involve Diagrams.

How do I install Diagram in Claude Code?

Run `npx skills add n0an/VivaDicta --skill diagram -a claude-code`. Or copy the skill folder (.agents/skills/diagram in n0an/VivaDicta) into .claude/skills/diagram in your project. Claude Code loads it when a task matches its description.

How do I install Diagram in Codex?

Run `npx skills add n0an/VivaDicta --skill diagram -a codex`. Or copy the skill folder (.agents/skills/diagram in n0an/VivaDicta) into .agents/skills/diagram in your project. Codex loads it when a task matches its description.

Can I use Diagram in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add n0an/VivaDicta --skill diagram -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/diagram, .gemini/skills/diagram, .github/skills/diagram and .opencode/skills/diagram in your project.

What does Diagram need to run?

SKILL.md names no scripts, command-line tools or credentials: Diagram is instructions for the agent only.

Does Diagram access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Diagram safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Diagram use?

Diagram is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Diagram use?

About 385 tokens (SKILL.md is roughly 1.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Diagram?

Skills that share tags, products or a category with Diagram: Archify Diagrams (tt-a1i/archify, 81k stars), JSON Canvas (heyitsnoah/claudesidian, 2.6k stars), Diagram Design (cathrynlavery/diagram-design, 48k stars) and Fireworks Tech Graph (tisfeng/Easydict, 15k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Diagram?

n0an (a GitHub user) maintains it in n0an/VivaDicta, which has 130 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 9, 2026.

Source: n0an/VivaDicta on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.