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Agent skill

Visio Skill

by deermiya in deermiya/visio-skill

Generate or modify Microsoft Visio .vsdx diagrams using local Visio COM automation.

No licenceAuto-check passedDevelopment

Install Visio Skill

skills CLI
$ npx skills add deermiya/visio-skill --skill visio-skill -a claude-code

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

GitHub CLI
$ gh skill install deermiya/visio-skill visio-skill --agent claude-code

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

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

Facts

Skill name
visio-skill
GitHub stars
183
Token cost
~2.5k tokens
SKILL.md length
1,067 words
Files
26 (incl. scripts, references)
Skills in repo
1
Repo updated
First seen
Licence
None found

At a glance

Generate or modify Microsoft Visio .vsdx diagrams using local Visio COM automation.

  • Works in 2 steps: Standard Diagrams (flowcharts,… → Sequence Diagrams (UML interaction…
  • The user asks Codex to create Visio files
  • SKILL.md covers Workflow, JSON Spec, Drawing Guidance and Validation
  • Calls python

What it does

Visio Skill is an agent skill from deermiya/visio-skill. Generate or modify Microsoft Visio .vsdx diagrams using local Visio COM automation. Use when the user asks Codex to create Visio files, draw flowcharts, architecture diagrams, sequence diagrams, swimlane-style layouts, network topology diagrams, process maps, or to automate shapes/connectors/text in Microsoft Visio on Windows.

Its SKILL.md is about 2.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 27 other files, including scripts and reference files (for example `CHANGELOG.md`, `README.md` and `README_EN.md`).

It sits in Development, covering Diagrams.

When your agent uses it

  • The user asks Codex to create Visio files
  • Draw flowcharts
  • Architecture diagrams
  • Sequence diagrams

Example prompts

  • “/visio-skill”

Requirements

  • Python 3

Workflow steps

2 steps, taken from the step headings in SKILL.md.

  1. Standard Diagrams (flowcharts, architecture, etc.)
  2. Sequence Diagrams (UML interaction diagrams)

What it can do on your machine

Read from SKILL.md and the folder at commit 04c6d49. 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

    Ships 1 file in scripts/, which the agent can run.

    Shell commands in SKILL.md call:

    • python

    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

Visio Skill loads about 2.5k tokens when it runs, and up to ~80k if it reads all its reference files. Until then it costs about 85 tokens; SKILL.md has 1,067 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~85
When it runs · the whole SKILL.md, loaded when a task matches
~2.5k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~80k

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); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,067 words (~2,520 tokens).

“Use local Microsoft Visio COM automation when Visio is installed and the user wants a real .vsdx file. Prefer the bundled script for new diagrams:”

— opening of SKILL.md by deermiya
name
visio-skill

Read the full SKILL.md on GitHub

Files

SKILL.md and 25 other files (scripts, references) in the repository root of deermiya/visio-skill.

  • SKILL.md
  • .gitignore
  • CHANGELOG.md
  • README.md
  • README_EN.md
  • examples/example-sequence.json
  • examples/image-reconstruction-overlay.json
  • examples/logic-diagram-style.json
  • examples/network-topology-azure.json
  • examples/network-topology-stencil.json
  • examples/simple-stencil-test.json
  • examples/workflow-spec.json
  • references/image-reconstruction.md
  • references/layout-spec.md
  • references/rtl-verilog.md
  • references/sequence-format.md
  • references/spec-format.md
  • references/stencil-reference.md
  • references/style-conversion-guide.md
  • … and 7 more

Open the folder on GitHubat commit 04c6d49

Compare with similar skills

Visio Skill 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.

Visio Skill compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Visio Skill this skilldeermiya/visio-skill183—~2.5kAutomated safety check: PassNone
Archify Diagramstt-a1i/archify81k—~2.9kAutomated safety check: PassMIT
JSON Canvasheyitsnoah/claudesidian2.6k18 repos~3.5kAutomated safety check: PassMIT
Diagram Designcathrynlavery/diagram-design47k1 repos~7.5kAutomated 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 Visio Skill

What does Visio Skill do?

Generate or modify Microsoft Visio .vsdx diagrams using local Visio COM automation. Visio Skill is an agent skill from deermiya/visio-skill.vsdx diagrams using local Visio COM automation.

When should I use Visio Skill?

Visio Skill fits situations like: the user asks Codex to create Visio files; draw flowcharts; architecture diagrams; sequence diagrams.

How do I install Visio Skill in Claude Code?

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

How do I install Visio Skill in Codex?

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

Can I use Visio Skill 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 deermiya/visio-skill --skill visio-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/visio-skill, .gemini/skills/visio-skill, .github/skills/visio-skill and .opencode/skills/visio-skill in your project.

What does Visio Skill need to run?

Going by SKILL.md and its folder, Visio Skill needs the command-line tools its instructions call (python). Our summary lists: Python 3.

Does Visio Skill 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 Visio Skill 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Visio Skill use?

No licence was found for Visio Skill or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Visio Skill use?

About 2.5k tokens (SKILL.md is roughly 10k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 77k tokens, read only when the agent opens those files.

What are the alternatives to Visio Skill?

Skills that share tags, products or a category with Visio Skill: Archify Diagrams (tt-a1i/archify, 81k stars), JSON Canvas (heyitsnoah/claudesidian, 2.6k stars), Diagram Design (cathrynlavery/diagram-design, 47k 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 Visio Skill?

deermiya (a GitHub user) maintains it in deermiya/visio-skill, which has 183 GitHub stars. The repository was last updated on July 3, 2026.

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