MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Score how ready a website, domain, or public MCP endpoint is for AI agents using Is Agentic, and read or act on the resulting report.
OfficialCustom licenceAuto-check passed
Install Is Agentic
$ npx skills add vercel/vercel-plugin --skill is-agentic -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install vercel/vercel-plugin is-agentic --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/vercel/vercel-plugin.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/is-agentic .claude/skills/is-agentic && 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 "is-agentic" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/is-agentic into .claude/skills/is-agentic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "is-agentic", 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/vercel/vercel-plugin/tree/main/skills/is-agenticType 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 vercel/vercel-plugin --skill is-agentic -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install vercel/vercel-plugin is-agentic --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/is-agentic .agents/skills/is-agentic && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "is-agentic" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/is-agentic into .agents/skills/is-agentic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "is-agentic", 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 vercel/vercel-plugin --skill is-agentic -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install vercel/vercel-plugin is-agentic --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/is-agentic .cursor/skills/is-agentic && 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 "is-agentic" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/is-agentic into .cursor/skills/is-agentic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "is-agentic", 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/vercel/vercel-plugin.git --path skills/is-agentic--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 vercel/vercel-plugin --skill is-agentic -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install vercel/vercel-plugin is-agentic --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/is-agentic .gemini/skills/is-agentic && 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 "is-agentic" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/is-agentic into .gemini/skills/is-agentic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "is-agentic", 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 vercel/vercel-plugin is-agenticInstalls 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 vercel/vercel-plugin --skill is-agentic -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/is-agentic .github/skills/is-agentic && 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 "is-agentic" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/is-agentic into .github/skills/is-agentic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "is-agentic", 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 vercel/vercel-plugin --skill is-agentic -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install vercel/vercel-plugin is-agentic --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/is-agentic .opencode/skills/is-agentic && 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 "is-agentic" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/is-agentic into .opencode/skills/is-agentic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "is-agentic", 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
is-agentic- GitHub stars
- 301
- Token cost
- ~1k tokens
- SKILL.md length
- 493 words
- Files
- 2
- Skills in repo
- 38
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Score how ready a website, domain, or public MCP endpoint is for AI agents using Is Agentic, and read or act on the resulting report.
- Works in 4 steps: Fetch the report for the exact target… → Work through issues in this order:… → For each issue, details says what the… → …
- Asked to check a sites agent readiness
- SKILL.md covers Get a score, Read a report, Improve a site's score and Errors, plus 1 more section
- Calls npx; reaches is-agentic.com
What it does
Is Agentic is an agent skill from vercel/vercel-plugin, published by the product's own GitHub organization. Score how ready a website, domain, or public MCP endpoint is for AI agents using Is Agentic, and read or act on the resulting report. Use when asked to check a site's agent readiness, get its Is Agentic score, fetch a scored report as JSON, or fix the issues that lower a site's score.
Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `overlay.yaml`).
It works with Model Context Protocol. The repository describes itself as: Comprehensive Vercel ecosystem plugin — relational knowledge graph, skills for every major product, specialized agents, and Vercel conventions. Turns any AI agent into a Vercel…
When your agent uses it
- Asked to check a sites agent readiness
- Get its Is Agentic score
- Fetch a scored report as JSON
- Fix the issues that lower a sites score
Example prompts
- “/is-agentic”
Requirements
- Node.js
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Fetch the report for the exact target you are improving.
- Work through issues in this order: essential failures, essential partials, then recommended. Ignore bonus unless everything else passes.
- For each issue, details says what the scan observed and recommendation says what to change. Prefer the recommendation; it was written…
- After deploying fixes, get a fresh score and compare scanned_at to confirm you are not reading the old snapshot (see gotchas).
What it can do on your machine
Read from SKILL.md and the folder at commit 82fa491. 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
Shell commands in SKILL.md call:
npx
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:
is-agentic.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
Is Agentic loads about 1k tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 493 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 493 words (~1,032 tokens).
“Is Agentic runs a technical audit of a public URL and publishes a 0 to 100 agent-readiness score with evidence-backed issues and recommended fixes. All interfaces below are public, read-only, and free; none needs an API key.”
- name
- is-agentic
- metadata.priority
- 4
- metadata.docs
- https://is-agentic.com/docs, https://is-agentic.com/llms.txt
- metadata.bashPatterns
- \bnpx\s+is-agentic\b, \bbunx\s+is-agentic\b, \bskills\s+add\s+vercel-labs/is-agentic\b, \bcurl\s+[^\n]*is-agentic\.com/api\b
Files
SKILL.md and 1 other file in skills/is-agentic of vercel/vercel-plugin.
- SKILL.md
- overlay.yaml
Open the folder on GitHubat commit 82fa491
Compare with similar skills
Is Agentic 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 |
|---|---|---|---|---|---|---|
| Is Agentic this skillvercel/vercel-plugin | 301 | — | ~1k | Automated safety check: Pass | Custom licence | |
| MCP Server Builderanthropics/skills | 180k | 62 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server BuildershareAI-lab/learn-claude-code | 78k | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| MCP Integration for Pluginsanthropics/claude-plugins-official | 37k | 11 repos | ~3.1k | Automated safety check: Pass | Apache-2.0 | |
| Figma use_figma Plugin API Ruleswarpdotdev/warp | 65k | 4 repos | ~4.4k | Automated safety check: Pass | AGPL-3.0 | |
| Stitch to Remotion Walkthrough Videosgoogle-labs-code/stitch-skills | 8.4k | 6 repos | ~3.2k | Automated safety check: Notes | Apache-2.0 |
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Questions about Is Agentic
What does Is Agentic do?
Score how ready a website, domain, or public MCP endpoint is for AI agents using Is Agentic, and read or act on the resulting report. Is Agentic is an agent skill from vercel/vercel-plugin, published by the product's own GitHub organization. Score how ready a website, domain, or public MCP endpoint is for AI agents using Is Agentic, and read or act on the resulting report.
When should I use Is Agentic?
Is Agentic fits situations like: asked to check a sites agent readiness; get its Is Agentic score; fetch a scored report as JSON; fix the issues that lower a sites score.
How do I install Is Agentic in Claude Code?
Run `npx skills add vercel/vercel-plugin --skill is-agentic -a claude-code`. Or copy the skill folder (skills/is-agentic in vercel/vercel-plugin) into .claude/skills/is-agentic in your project. Claude Code loads it when a task matches its description.
How do I install Is Agentic in Codex?
Run `npx skills add vercel/vercel-plugin --skill is-agentic -a codex`. Or copy the skill folder (skills/is-agentic in vercel/vercel-plugin) into .agents/skills/is-agentic in your project. Codex loads it when a task matches its description.
Can I use Is Agentic 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 vercel/vercel-plugin --skill is-agentic -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/is-agentic, .gemini/skills/is-agentic, .github/skills/is-agentic and .opencode/skills/is-agentic in your project.
What does Is Agentic need to run?
Going by SKILL.md and its folder, Is Agentic needs the command-line tools its instructions call (npx). Our summary lists: Node.js.
Does Is Agentic access the network?
SKILL.md names 1 domain. In commands or code: is-agentic.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Is Agentic 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 Is Agentic use?
Is Agentic has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Is Agentic use?
About 1k tokens (SKILL.md is roughly 4.1k 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 Is Agentic?
Skills that share tags, products or a category with Is Agentic: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 37k stars) and Figma use_figma Plugin API Rules (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Is Agentic?
vercel (a GitHub organization, an official publisher) maintains it in vercel/vercel-plugin, which has 301 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on October 6, 2026.
Source: vercel/vercel-plugin on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.