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.
Build, repair, or package Agentlas agents and teams with Hephaestus.
Install Agentlas Build
$ npx skills add agentlas-ai/Agentlas-OS --skill agentlas-build -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install agentlas-ai/Agentlas-OS agentlas-build --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/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .claude/skills && cp -r skills-src/kimi/skills/agentlas-build .claude/skills/agentlas-build && 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 "agentlas-build" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/kimi/skills/agentlas-build into .claude/skills/agentlas-build/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentlas-build", 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/agentlas-ai/Agentlas-OS/tree/main/kimi/skills/agentlas-buildType 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 agentlas-ai/Agentlas-OS --skill agentlas-build -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install agentlas-ai/Agentlas-OS agentlas-build --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .agents/skills && cp -r skills-src/kimi/skills/agentlas-build .agents/skills/agentlas-build && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "agentlas-build" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/kimi/skills/agentlas-build into .agents/skills/agentlas-build/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentlas-build", 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 agentlas-ai/Agentlas-OS --skill agentlas-build -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install agentlas-ai/Agentlas-OS agentlas-build --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/kimi/skills/agentlas-build .cursor/skills/agentlas-build && 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 "agentlas-build" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/kimi/skills/agentlas-build into .cursor/skills/agentlas-build/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentlas-build", 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/agentlas-ai/Agentlas-OS.git --path kimi/skills/agentlas-build--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 agentlas-ai/Agentlas-OS --skill agentlas-build -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install agentlas-ai/Agentlas-OS agentlas-build --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/kimi/skills/agentlas-build .gemini/skills/agentlas-build && 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 "agentlas-build" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/kimi/skills/agentlas-build into .gemini/skills/agentlas-build/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentlas-build", 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 agentlas-ai/Agentlas-OS agentlas-buildInstalls 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 agentlas-ai/Agentlas-OS --skill agentlas-build -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .github/skills && cp -r skills-src/kimi/skills/agentlas-build .github/skills/agentlas-build && 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 "agentlas-build" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/kimi/skills/agentlas-build into .github/skills/agentlas-build/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentlas-build", 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 agentlas-ai/Agentlas-OS --skill agentlas-build -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install agentlas-ai/Agentlas-OS agentlas-build --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/kimi/skills/agentlas-build .opencode/skills/agentlas-build && 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 "agentlas-build" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/kimi/skills/agentlas-build into .opencode/skills/agentlas-build/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agentlas-build", 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
agentlas-build- GitHub stars
- 1.6k
- Token cost
- ~164 tokens
- SKILL.md length
- 70 words
- Files
- 1
- Skills in repo
- 53
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Build, repair, or package Agentlas agents and teams with Hephaestus.
- Agent Workflows work in your project
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Agentlas Build is an agent skill from agentlas-ai/Agentlas-OS. Build, repair, or package Agentlas agents and teams with Hephaestus.
Its SKILL.md is about 160 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 Agent Workflows. The repository describes itself as: Agent OS: keep specialist agents in a hub, spin up a temporary orchestrator per task. Local-first, works with any model. The licence is Apache-2.0.
When your agent uses it
- Agent Workflows work in your project
Example prompts
- “/agentlas-build”
What it can do on your machine
Read from SKILL.md and the folder at commit 6254906. 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.
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
Agentlas Build loads about 164 tokens when it runs. Until then it costs about 21 tokens; SKILL.md has 70 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
The full file from agentlas-ai/Agentlas-OS at commit 6254906, republished under its Apache-2.0 licence (© agentlas-ai). 70 words, ~164 tokens.
Download SKILL.mdSave it as
.claude/skills/agentlas-build/SKILL.md (or your agent's skills folder).- name
- agentlas-build
- description
- Build, repair, or package Agentlas agents and teams with Hephaestus.
agentlas-build
Identical to /skill:hep-build and /agentlas build <request>. Locate the
sibling skill directory hep-build (i.e. ../hep-build/SKILL.md relative to
this file, under the same kimi/skills/ root this skill was loaded from), read
its SKILL.md, and follow its instructions exactly — treating everything typed
after /skill:agentlas-build as that command's request.
Do not improvise a separate workflow and do not summarize hep-build/SKILL.md
from memory; that file is the sole authority for this command's behavior.
© agentlas-ai, Apache-2.0. 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 kimi/skills/agentlas-build of agentlas-ai/Agentlas-OS.
Open the folder on GitHubat commit 6254906
Compare with similar skills
Agentlas Build 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 |
|---|---|---|---|---|---|---|
| Agentlas Build this skillagentlas-ai/Agentlas-OS | 1.6k | — | ~164 | Automated safety check: Pass | Apache-2.0 | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 38k | 10 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 | |
| Using Superpowersfarm-fe/farm | 5.6k | 35 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Executing Plans Inlineobra/superpowers | 297k | 2 repos | ~5.1k | Automated safety check: Pass | MIT | |
| Skill CreatorAzure/azqr | 795 | 89 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 |
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Using Superpowers
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Executing Plans Inline
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More from agentlas-ai/Agentlas-OS
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agentlas-ai/Agentlas-OS
A skill your agent uses when an agent folder must pass the Agentlas Cloud 2-stage security scan (static rules + BYOK LLM judgment) before private sync or public publish, or when asked to…
Hephaestus Build
agentlas-ai/Agentlas-OS
A skill your agent uses when the user types /prompts:hep-build or /agentlas-build, mentions @Hephaestus for build work, asks to create a single Agentlas agent, create a multi-agent team, or package…
Hephaestus Graph
agentlas-ai/Agentlas-OS
A skill your agent uses when the user types /hep-graph or asks to create, list, inspect, or request a run of an Agentlas automation graph.
Hephaestus Upload
agentlas-ai/Agentlas-OS
A skill your agent uses when the user types $hephaestus-upload, /hep-upload, or /agentlas-upload, or asks to upload, publish, or list an Agentlas agent or team.
Routing Card Authoring
agentlas-ai/Agentlas-OS
A skill your agent uses whenever a build emits or repairs .agentlas/routing-card.json — the shared card contract for the single-agent builder, the team builder, and the packager.
Team Builder Packaging
agentlas-ai/Agentlas-OS
A skill your agent uses when generating or auditing a multi-role agent team package with orchestrator, PM Soul, Memory Curator, Policy Gate, workers, eval, QA, handoffs, and runtime adapters.
Related
Categories
Questions about Agentlas Build
What does Agentlas Build do?
Build, repair, or package Agentlas agents and teams with Hephaestus. Agentlas Build is an agent skill from agentlas-ai/Agentlas-OS. Build, repair, or package Agentlas agents and teams with Hephaestus.
When should I use Agentlas Build?
Agentlas Build fits situations like: agent Workflows work in your project.
How do I install Agentlas Build in Claude Code?
Run `npx skills add agentlas-ai/Agentlas-OS --skill agentlas-build -a claude-code`. Or copy the skill folder (kimi/skills/agentlas-build in agentlas-ai/Agentlas-OS) into .claude/skills/agentlas-build in your project. Claude Code loads it when a task matches its description.
How do I install Agentlas Build in Codex?
Run `npx skills add agentlas-ai/Agentlas-OS --skill agentlas-build -a codex`. Or copy the skill folder (kimi/skills/agentlas-build in agentlas-ai/Agentlas-OS) into .agents/skills/agentlas-build in your project. Codex loads it when a task matches its description.
Can I use Agentlas Build 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 agentlas-ai/Agentlas-OS --skill agentlas-build -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agentlas-build, .gemini/skills/agentlas-build, .github/skills/agentlas-build and .opencode/skills/agentlas-build in your project.
What does Agentlas Build need to run?
SKILL.md names no scripts, command-line tools or credentials: Agentlas Build is instructions for the agent only.
Does Agentlas Build 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 Agentlas Build 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 Agentlas Build use?
Agentlas Build is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Agentlas Build use?
About 164 tokens (SKILL.md is roughly 656 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 Agentlas Build?
Skills that share tags, products or a category with Agentlas Build: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 297k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Agentlas Build?
agentlas-ai (a GitHub organization) maintains it in agentlas-ai/Agentlas-OS, which has 1,582 GitHub stars. The repository holds 53 skills in this directory. The repository was last updated on October 8, 2026.
Source: agentlas-ai/Agentlas-OS on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.