Evolutionary Modular Architecture
tech-leads-club/agent-skills
Guides design of modular-monolith platforms with DDD, flat-by-aggregate modules, anti-corruption layers, outbox events and resilience, plus an architecture document with SVG diagrams.
Expert C4 Component-level documentation specialist. An agent skill from aiskillstore/marketplace.
Install C4 Component
$ npx skills add aiskillstore/marketplace --skill c4-component -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace c4-component --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/c4-component .claude/skills/c4-component && rm -rf skills-srcUse ~/.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/
Install the "c4-component" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-component into .claude/skills/c4-component/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-component", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-componentType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aiskillstore/marketplace --skill c4-component -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace c4-component --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sickn33/c4-component .agents/skills/c4-component && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "c4-component" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-component into .agents/skills/c4-component/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-component", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill c4-component -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace c4-component --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sickn33/c4-component .cursor/skills/c4-component && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "c4-component" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-component into .cursor/skills/c4-component/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-component", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aiskillstore/marketplace.git --path skills/sickn33/c4-component--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aiskillstore/marketplace --skill c4-component -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace c4-component --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sickn33/c4-component .gemini/skills/c4-component && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "c4-component" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-component into .gemini/skills/c4-component/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-component", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aiskillstore/marketplace c4-componentInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aiskillstore/marketplace --skill c4-component -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sickn33/c4-component .github/skills/c4-component && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "c4-component" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-component into .github/skills/c4-component/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-component", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill c4-component -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace c4-component --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sickn33/c4-component .opencode/skills/c4-component && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "c4-component" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-component into .opencode/skills/c4-component/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-component", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
c4-component- GitHub stars
- 430
- Used in
- 7 other repos
- Token cost
- ~1.2k tokens
- SKILL.md length
- 326 words
- Files
- 2
- Skills in repo
- 1,108
- Repo updated
- First seen
- Licence
- None found
At a glance
Expert C4 Component-level documentation specialist. An agent skill from aiskillstore/marketplace.
- Synthesizing code-level documentation into logical components
- SKILL.md covers Use this skill when, Do not use this skill when, Instructions and Overview, plus 10 more sections
- Reaches c4model.com
- Tasks that involve Diagrams
What it does
C4 Component is an agent skill from aiskillstore/marketplace. Expert C4 Component-level documentation specialist. Synthesizes C4 Code-level documentation into Component-level architecture, defining component boundaries, interfaces, and relationships. Creates component diagrams and documentation. Use when synthesizing code-level documentation into logical components.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in Development, covering Diagrams. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Synthesizing code-level documentation into logical components
- Tasks that involve Diagrams
Example prompts
- “/c4-component”
What it can do on your machine
Read from SKILL.md and the folder at commit ad8daf7. 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 (its code samples are mermaid and markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
c4model.com
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
C4 Component loads about 1.2k tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 326 words of instructions outside code blocks.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 326 words (~1,227 tokens).
“[Detailed description of what this component does and what problems it solves]”
- name
- c4-component
- metadata.model
- sonnet
Files
SKILL.md and 1 other file in skills/sickn33/c4-component of aiskillstore/marketplace.
- SKILL.md
- skill-report.json
Open the folder on GitHubat commit ad8daf7
Used in 7 other repositories
We found 16 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 7 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
- sickn33/agentic-awesome-skillsskills/c4-componentplugins/agentic-awesome-skills/skills/c4-component+1 more
- rmyndharis/antigravity-skillsskills/c4-component
- Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI.agent/skills/c4-component
- agent-skills-hub/agent-skills-hubskills/c4-component
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/c4-componentantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/c4-component+1 more
- benjaminasterA/antigravity-awesome-skillsskills/c4-component
- henryalouf/ruflow.agents/skills/c4-component.agents/skills/antigravity-awesome-skills/skills/c4-component+4 more
Compare with similar skills
C4 Component 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| C4 Component this skillaiskillstore/marketplace | 430 | 7 repos | ~1.2k | Automated safety check: Pass | None | |
| Evolutionary Modular Architecturetech-leads-club/agent-skills | 7k | — | ~3.7k | Automated safety check: Pass | CC-BY-4.0 | |
| Architecture Blueprint Generatorgithub/awesome-copilot | 40k | 3 repos | ~3.3k | Automated safety check: Pass | MIT | |
| Docs CIjh941213/my-cc-harness | 126 | — | ~989 | Automated safety check: Notes | None | |
| Visual RecapBuilderIO/skills | 4.5k | — | ~8.4k | Automated safety check: Notes | MIT | |
| Technology Stack Blueprint Generatorgithub/awesome-copilot | 40k | 1 repos | ~2.5k | Automated safety check: Pass | MIT |
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Architecture Blueprint Generator
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Turn a PR, branch, commit, or git diff into an interactive visual recap with diagrams, file maps, API/schema summaries, annotated diffs, and focused review notes.
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Comprehensive technology stack blueprint generator that analyzes codebases to create detailed architectural documentation.
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System architecture design and review. An agent skill from borghei/Claude-Skills.
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Related
Categories
Questions about C4 Component
What does C4 Component do?
Expert C4 Component-level documentation specialist. An agent skill from aiskillstore/marketplace. C4 Component is an agent skill from aiskillstore/marketplace. Expert C4 Component-level documentation specialist.
When should I use C4 Component?
C4 Component fits situations like: synthesizing code-level documentation into logical components; tasks that involve Diagrams.
How do I install C4 Component in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill c4-component -a claude-code`. Or copy the skill folder (skills/sickn33/c4-component in aiskillstore/marketplace) into .claude/skills/c4-component in your project. Claude Code loads it when a task matches its description.
How do I install C4 Component in Codex?
Run `npx skills add aiskillstore/marketplace --skill c4-component -a codex`. Or copy the skill folder (skills/sickn33/c4-component in aiskillstore/marketplace) into .agents/skills/c4-component in your project. Codex loads it when a task matches its description.
Can I use C4 Component 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 aiskillstore/marketplace --skill c4-component -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/c4-component, .gemini/skills/c4-component, .github/skills/c4-component and .opencode/skills/c4-component in your project.
What does C4 Component need to run?
SKILL.md names no scripts, command-line tools or credentials: C4 Component is instructions for the agent only.
Does C4 Component access the network?
SKILL.md names 1 domain. In commands or code: c4model.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is C4 Component 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 C4 Component use?
No licence was found for C4 Component or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does C4 Component use?
About 1.2k tokens (SKILL.md is roughly 4.9k 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 C4 Component?
Skills that share tags, products or a category with C4 Component: Evolutionary Modular Architecture (tech-leads-club/agent-skills, 7k stars), Architecture Blueprint Generator (github/awesome-copilot, 40k stars), Docs CI (jh941213/my-cc-harness, 126 stars) and Visual Recap (BuilderIO/skills, 4.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains C4 Component?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.