Attio Upgrade Migration
jeremylongshore/tons-of-skills-marketplace
Migrate an Attio integration through a contract-led inventory, OpenAPI and documentation diff, shadow validation, canary rollout, reconciliation, and tested rollback.
Expert C4 Container-level documentation specialist. An agent skill from aiskillstore/marketplace.
Install C4 Container
$ npx skills add aiskillstore/marketplace --skill c4-container -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace c4-container --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-container .claude/skills/c4-container && 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-container" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-container into .claude/skills/c4-container/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-container", 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-containerType 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-container -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace c4-container --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-container .agents/skills/c4-container && 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-container" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-container into .agents/skills/c4-container/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-container", 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-container -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace c4-container --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-container .cursor/skills/c4-container && 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-container" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-container into .cursor/skills/c4-container/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-container", 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-container--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-container -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace c4-container --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-container .gemini/skills/c4-container && 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-container" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-container into .gemini/skills/c4-container/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-container", 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-containerInstalls 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-container -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-container .github/skills/c4-container && 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-container" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-container into .github/skills/c4-container/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-container", 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-container -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-container --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-container .opencode/skills/c4-container && 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-container" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/c4-container into .opencode/skills/c4-container/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "c4-container", 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-container- GitHub stars
- 430
- Used in
- 7 other repos
- Token cost
- ~1.4k tokens
- SKILL.md length
- 360 words
- Files
- 2
- Skills in repo
- 1,108
- Repo updated
- First seen
- Licence
- None found
At a glance
Expert C4 Container-level documentation specialist. An agent skill from aiskillstore/marketplace.
- Synthesizing components into deployment containers and documenting system deployment architecture
- SKILL.md covers Use this skill when, Do not use this skill when, Instructions and Containers, plus 10 more sections
- Reaches c4model.com
- Tasks that involve OpenAPI specifications
What it does
C4 Container is an agent skill from aiskillstore/marketplace. Expert C4 Container-level documentation specialist. Synthesizes Component-level documentation into Container-level architecture, mapping components to deployment units, documenting container interfaces as APIs, and creating container diagrams. Use when synthesizing components into deployment containers and documenting system deployment architecture.
Its SKILL.md is about 1.4k 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 Backend & APIs, covering OpenAPI specifications, Deployment and Diagrams. It works with OpenAPI. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Synthesizing components into deployment containers and documenting system deployment architecture
- Tasks that involve OpenAPI specifications
- Tasks that involve Deployment
Example prompts
- “/c4-container”
Requirements
- Node.js
- Docker
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 yaml).
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 Container loads about 1.4k tokens when it runs. Until then it costs about 91 tokens; SKILL.md has 360 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 360 words (~1,404 tokens).
“[Detailed description of what this container does and how it's deployed]”
- name
- c4-container
- metadata.model
- sonnet
Files
SKILL.md and 1 other file in skills/sickn33/c4-container 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-containerplugins/agentic-awesome-skills/skills/c4-container+1 more
- rmyndharis/antigravity-skillsskills/c4-container
- Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI.agent/skills/c4-container
- agent-skills-hub/agent-skills-hubskills/c4-container
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/c4-containerantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/c4-container+1 more
- benjaminasterA/antigravity-awesome-skillsskills/c4-container
- henryalouf/ruflow.agents/skills/c4-container.agents/skills/antigravity-awesome-skills/skills/c4-container+4 more
Compare with similar skills
C4 Container 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 Container this skillaiskillstore/marketplace | 430 | 7 repos | ~1.4k | Automated safety check: Pass | None | |
| Attio Upgrade Migrationjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1k | Automated safety check: Pass | MIT | |
| Yapi Skillhashgraph-online/awesome-codex-plugins | 1.2k | — | ~2k | Automated safety check: Pass | Apache-2.0 | |
| Mock Serverscalar/scalar | 16k | — | ~1.2k | Automated safety check: Pass | MIT | |
| VibexRaja0sama/vibex | 388 | — | ~7.8k | Automated safety check: Pass | MIT | |
| Migrate Dotnet9 To Dotnet10dotnet/skills | 5.6k | 2 repos | ~4.8k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about C4 Container
What does C4 Container do?
Expert C4 Container-level documentation specialist. An agent skill from aiskillstore/marketplace. C4 Container is an agent skill from aiskillstore/marketplace. Expert C4 Container-level documentation specialist.
When should I use C4 Container?
C4 Container fits situations like: synthesizing components into deployment containers and documenting system deployment architecture; tasks that involve OpenAPI specifications; tasks that involve Deployment.
How do I install C4 Container in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill c4-container -a claude-code`. Or copy the skill folder (skills/sickn33/c4-container in aiskillstore/marketplace) into .claude/skills/c4-container in your project. Claude Code loads it when a task matches its description.
How do I install C4 Container in Codex?
Run `npx skills add aiskillstore/marketplace --skill c4-container -a codex`. Or copy the skill folder (skills/sickn33/c4-container in aiskillstore/marketplace) into .agents/skills/c4-container in your project. Codex loads it when a task matches its description.
Can I use C4 Container 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-container -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-container, .gemini/skills/c4-container, .github/skills/c4-container and .opencode/skills/c4-container in your project.
What does C4 Container need to run?
SKILL.md names no scripts, command-line tools or credentials: C4 Container is instructions for the agent only. Our summary lists: Node.js; Docker.
Does C4 Container 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 Container 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 Container use?
No licence was found for C4 Container or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does C4 Container use?
About 1.4k tokens (SKILL.md is roughly 5.6k 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 Container?
Skills that share tags, products or a category with C4 Container: Attio Upgrade Migration (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Yapi Skill (hashgraph-online/awesome-codex-plugins, 1.2k stars), Mock Server (scalar/scalar, 16k stars) and Vibex (Raja0sama/vibex, 388 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains C4 Container?
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.