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Agent skill

Architecture

by Houseofmvps in Houseofmvps/ultraship

Living Architecture Map — auto-generate Mermaid diagrams of your codebase.

MITAuto-check: notesDevelopment

Install Architecture

skills CLI
$ npx skills add Houseofmvps/ultraship --skill architecture -a claude-code

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

GitHub CLI
$ gh skill install Houseofmvps/ultraship architecture --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/Houseofmvps/ultraship.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/architecture .claude/skills/architecture && 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
architecture
GitHub stars
123
Token cost
~708 tokens
SKILL.md length
289 words
Files
1
Skills in repo
28
Repo updated
First seen
Licence
MIT

At a glance

Living Architecture Map — auto-generate Mermaid diagrams of your codebase.

  • Works in 5 steps: Scan → Present Diagrams → Architecture Analysis → …
  • User wants to visualize architecture
  • SKILL.md covers Process, Keeping Diagrams Updated and Key Principle
  • Calls node

What it does

Architecture is an agent skill from Houseofmvps/ultraship. Living Architecture Map — auto-generate Mermaid diagrams of your codebase. Use when user wants to visualize architecture, understand code structure, generate diagrams, or document system design.

Its SKILL.md is about 710 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Diagrams. The repository describes itself as: "ULTRASHIP" Claude Code plugin — 39 skills, 33 tools, 11 agents for ship-ready workflows: planning, review, pentesting, safety guardrails, canary monitoring, SEO/AI-readiness… The licence is MIT.

When your agent uses it

  • User wants to visualize architecture
  • Understand code structure
  • Generate diagrams
  • Document system design

Example prompts

  • “/architecture”

Requirements

  • Pre-approved tools (allowed-tools): Bash, Read, Grep, Glob, Write

Workflow steps

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

  1. Scan
  2. Present Diagrams
  3. Architecture Analysis
  4. Save Diagrams
  5. Recommendations

What it can do on your machine

Read from SKILL.md and the folder at commit ed232cb. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Bash
    • Read
    • Grep
    • Glob
    • Write

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • node

    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

Architecture loads about 708 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 289 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~52
When it runs · the whole SKILL.md, loaded when a task matches
~708

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Bash, Read, Grep, Glob, Write

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 Houseofmvps/ultraship at commit ed232cb, republished under its MIT licence (© Houseofmvps). 289 words, ~708 tokens.

Download SKILL.mdSave it as .claude/skills/architecture/SKILL.md (or your agent's skills folder).
name
architecture
description
Living Architecture Map — auto-generate Mermaid diagrams of your codebase. Use when user wants to visualize architecture, understand code structure, generate diagrams, or document system design.
allowed-tools
Bash, Read, Grep, Glob, Write

Living Architecture Map

Auto-generates and maintains architecture diagrams from your actual code. Always up-to-date.

Process

Phase 1: Scan
bash
node ${CLAUDE_PLUGIN_ROOT}/tools/architecture-mapper.mjs <project-directory>

Parse the JSON output for architecture data and diagrams.

Phase 2: Present Diagrams

Display each Mermaid diagram with context:

System Architecture: High-level view of all components and how they connect.

mermaid
[system diagram from tool output]

API Route Map: All endpoints organized by resource.

mermaid
[routes diagram from tool output]

Database Schema: Entity-relationship diagram of all tables and relations.

mermaid
[database ER diagram from tool output]

Data Flow: Sequence diagram showing how a typical request flows through the system.

mermaid
[data flow diagram from tool output]
Phase 3: Architecture Analysis

Based on the scanned data, provide analysis:

Strengths:

  • Clear layer separation
  • No circular dependencies
  • Well-organized middleware chain

Concerns:

  • Circular dependencies found (list them)
  • Orphan modules (files imported by nothing)
  • Large files that may need splitting
  • Missing middleware (no auth, no rate limiting, etc.)

Service Dependencies: List all external services and how they're used. Flag any that are single points of failure.

Phase 4: Save Diagrams

Save architecture documentation:

  1. Create docs/architecture/ directory
  2. Save docs/architecture/ARCHITECTURE.md with all diagrams
  3. Save individual diagram files if needed

The document should be self-contained and renderable in GitHub (GitHub supports Mermaid in markdown).

Phase 5: Recommendations

Based on architecture analysis:

  1. Circular dependencies — suggest how to break cycles
  2. Orphan modules — suggest removal or integration
  3. Missing patterns — suggest middleware, error handling, or caching if absent
  4. Scalability concerns — identify bottlenecks (single database, no caching, synchronous processing)

Keeping Diagrams Updated

Recommend running /architecture after any significant structural change:

  • Adding new API routes
  • Adding new database tables
  • Integrating new external services
  • Major refactors

The diagrams are generated from code, so they're always accurate when re-run.

Key Principle

The map IS the territory. Architecture diagrams that drift from reality are worse than no diagrams. Because these are auto-generated from code, they're always truthful.

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

Files

Just SKILL.md in skills/architecture of Houseofmvps/ultraship.

Open the folder on GitHubat commit ed232cb

Compare with similar skills

Architecture 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.

Architecture compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Architecture this skillHouseofmvps/ultraship123—~708Automated safety check: NotesMIT
Archify Diagramstt-a1i/archify79k—~2.9kAutomated safety check: PassMIT
JSON Canvasheyitsnoah/claudesidian2.6k18 repos~3.5kAutomated safety check: PassMIT
Diagram Designcathrynlavery/diagram-design45k1 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 Architecture

What does Architecture do?

Living Architecture Map — auto-generate Mermaid diagrams of your codebase. Architecture is an agent skill from Houseofmvps/ultraship. Living Architecture Map — auto-generate Mermaid diagrams of your codebase.

When should I use Architecture?

Architecture fits situations like: user wants to visualize architecture; understand code structure; generate diagrams; document system design.

How do I install Architecture in Claude Code?

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

How do I install Architecture in Codex?

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

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

What does Architecture need to run?

Going by SKILL.md and its folder, Architecture needs the command-line tools its instructions call (node). Its frontmatter pre-approves these tools: Bash, Read, Grep, Glob, Write.

Does Architecture 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 Architecture safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Architecture use?

Architecture 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 Architecture use?

About 708 tokens (SKILL.md is roughly 2.8k 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 Architecture?

Skills that share tags, products or a category with Architecture: Archify Diagrams (tt-a1i/archify, 79k stars), JSON Canvas (heyitsnoah/claudesidian, 2.6k stars), Diagram Design (cathrynlavery/diagram-design, 45k 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 Architecture?

Houseofmvps (a GitHub user) maintains it in Houseofmvps/ultraship, which has 123 GitHub stars. The repository holds 28 skills in this directory. The repository was last updated on July 8, 2026.

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