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.
在 Nexus 私聊或 Room 中检查和管理已授权配置，包括用户账号、Agent、Room、Provider、偏好、Channel、Connector、Skill、Session、模型、工具和 MCP。
Apache-2.0Auto-check passed
Install Nexus Configuration
$ npx skills add nexus-research-lab/nexus --skill nexus-configuration -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nexus-research-lab/nexus nexus-configuration --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/nexus-research-lab/nexus.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nexus-configuration .claude/skills/nexus-configuration && 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 "nexus-configuration" agent skill from https://github.com/nexus-research-lab/nexus/tree/main/skills/nexus-configuration into .claude/skills/nexus-configuration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nexus-configuration", 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/nexus-research-lab/nexus/tree/main/skills/nexus-configurationType 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 nexus-research-lab/nexus --skill nexus-configuration -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nexus-research-lab/nexus nexus-configuration --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-research-lab/nexus.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/nexus-configuration .agents/skills/nexus-configuration && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "nexus-configuration" agent skill from https://github.com/nexus-research-lab/nexus/tree/main/skills/nexus-configuration into .agents/skills/nexus-configuration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nexus-configuration", 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 nexus-research-lab/nexus --skill nexus-configuration -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nexus-research-lab/nexus nexus-configuration --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-research-lab/nexus.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/nexus-configuration .cursor/skills/nexus-configuration && 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 "nexus-configuration" agent skill from https://github.com/nexus-research-lab/nexus/tree/main/skills/nexus-configuration into .cursor/skills/nexus-configuration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nexus-configuration", 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/nexus-research-lab/nexus.git --path skills/nexus-configuration--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 nexus-research-lab/nexus --skill nexus-configuration -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nexus-research-lab/nexus nexus-configuration --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-research-lab/nexus.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/nexus-configuration .gemini/skills/nexus-configuration && 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 "nexus-configuration" agent skill from https://github.com/nexus-research-lab/nexus/tree/main/skills/nexus-configuration into .gemini/skills/nexus-configuration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nexus-configuration", 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 nexus-research-lab/nexus nexus-configurationInstalls 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 nexus-research-lab/nexus --skill nexus-configuration -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nexus-research-lab/nexus.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/nexus-configuration .github/skills/nexus-configuration && 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 "nexus-configuration" agent skill from https://github.com/nexus-research-lab/nexus/tree/main/skills/nexus-configuration into .github/skills/nexus-configuration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nexus-configuration", 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 nexus-research-lab/nexus --skill nexus-configuration -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nexus-research-lab/nexus nexus-configuration --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nexus-research-lab/nexus.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/nexus-configuration .opencode/skills/nexus-configuration && 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 "nexus-configuration" agent skill from https://github.com/nexus-research-lab/nexus/tree/main/skills/nexus-configuration into .opencode/skills/nexus-configuration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nexus-configuration", 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
nexus-configuration- GitHub stars
- 151
- Token cost
- ~798 tokens
- SKILL.md length
- 198 words
- Files
- 6 (incl. references)
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
在 Nexus 私聊或 Room 中检查和管理已授权配置，包括用户账号、Agent、Room、Provider、偏好、Channel、Connector、Skill、Session、模型、工具和 MCP。
- Works in 6 steps: 只 inspect 相关 domain；排障时加 --verify → 以顶层 inspection 中的… → mutation 先用同一… → …
- SKILL.md covers 固定生命周期, 秘密与权限, 配置请求失败 and 管理用户, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Nexus Configuration is an agent skill from nexus-research-lab/nexus. 在 Nexus 私聊或 Room 中检查和管理已授权配置，包括用户账号、Agent、Room、Provider、偏好、Channel、Connector、Skill、Session、模型、工具和 MCP。
Its SKILL.md is about 800 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/agent-profile-template.md`, `references/members.md` and `references/roles-and-domains.md`).
It works with Model Context Protocol. The repository describes itself as: Multi-agent collaboration platform for persistent, proactive AI agents across rooms, workspaces, skills, and external services. The licence is Apache-2.0.
Example prompts
- “/nexus-configuration”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- 只 inspect 相关 domain；排障时加 --verify
- 以顶层 inspection 中的 authority、access.allowed_operations、definition.operations、revision 与 checks 为准。操作已按当前身份和 DM/Room 过滤；其他入口见…
- mutation 先用同一 domain/operation/target/input 执行 plan。输入必须是一个不含秘密的 JSON object
- 核对 plan 的 normalized change、summary、risk、runtime effect、current_revision、plan_digest 与 confirmation/secret…
- apply 保持同一 change，携带 plan revision 与稳定 request ID；revision 冲突时回到 inspect/plan，不覆盖新状态
- 读取顶层 result 的写后 checks；不确定时重新 inspect --verify 或用 history --domain '' 核对。数据库已写入不等于 runtime 已生效，以返回的 runtime effect 和验证结果为准。
What it can do on your machine
Read from SKILL.md and the folder at commit 67f54e7. 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 bash).
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
Nexus Configuration loads about 798 tokens when it runs, and up to ~3.3k if it reads all its reference files. Until then it costs about 31 tokens; SKILL.md has 198 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 nexus-research-lab/nexus at commit 67f54e7, republished under its Apache-2.0 licence (© nexus-research-lab). 198 words, ~798 tokens.
Download SKILL.mdSave it as
.claude/skills/nexus-configuration/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- nexus-configuration
- description
- 在 Nexus 私聊或 Room 中检查和管理已授权配置，包括用户账号、Agent、Room、Provider、偏好、Channel、Connector、Skill、Session、模型、工具和 MCP。
- title
- Nexus 配置
- scope
- any
- tags
- nexus, configuration, settings, agent, room
Nexus 配置
配置命令使用宿主注入的 NEXUSCFG_COMMAND_PATH；示例中的 nexuscfg 只代表该入口。宿主绑定当前 Agent、DM/Room round 与 owner scope，服务端返回真实 owner_main|agent_self|room_host|room_member authority。不要声明、切换或覆盖 identity/scope，也不要使用 owner 控制面、数据库或配置文件替代本能力。
固定生命周期
所有 mutation 固定走 inspect → plan → apply → verify。
只 inspect 相关 domain；排障时加
--verify：bash "$NEXUSCFG_COMMAND_PATH" --json inspect --domain agents --verifyPowerShell 使用
& "${env:NEXUSCFG_COMMAND_PATH}" ...，不要混用 shell 变量语法。以顶层
inspection中的authority、access.allowed_operations、definition.operations、revision与 checks 为准。操作已按当前身份和 DM/Room 过滤；其他入口见 references/roles-and-domains.md 分流。不要猜 operation、target 或 input。mutation 先用同一 domain/operation/target/input 执行 plan。输入必须是一个不含秘密的 JSON object：
bash "$NEXUSCFG_COMMAND_PATH" --json plan --domain agents --operation update_self_profile --input '{"name":"新名称"}'核对 plan 的 normalized change、summary、risk、runtime effect、
current_revision、plan_digest与 confirmation/secret slots。requires_confirmation=true时等待用户针对该 plan 明确同意；只有随后 apply 才加--confirm。apply 保持同一 change，携带 plan revision 与稳定 request ID；revision 冲突时回到 inspect/plan，不覆盖新状态：
bash "$NEXUSCFG_COMMAND_PATH" --json apply --domain agents --operation update_self_profile --input '{"name":"新名称"}' --expected-revision '<revision>' --request-id 'config-agent-profile-UNIQUE'读取顶层
result的写后 checks；不确定时重新 inspect--verify或用history --domain '<domain>'核对。数据库已写入不等于 runtime 已生效，以返回的 runtime effect 和验证结果为准。
秘密与权限
- 不向用户索取或在聊天、命令参数、文件、日志中写入 token、密码、私有 header、授权码或密钥。Agent 永不使用
--secrets-stdin；members.create使用{"$secret":"member-password"}占位，apply 由宿主确认卡片收集密码；其他域出现 secret slot 时，引导用户在 Settings 或人工终端完成。 - Connector OAuth/device 与 Channel 扫码、验证码继续使用对应专用授权流程，不把凭据塞进通用 config input。
- permission denied 表示当前 Agent/DM/Room 没有该 operation。报告真实边界，不换 target、不伪造身份，也不传隐藏的
--scope-user-id/--global-scope。 host只读；部署环境、启动参数和桌面状态根通过部署或原生桌面控制面修改。
回复简要说明真实变更、作用域、生效时机和验证结果；不要输出脱敏前配置、capability 或完整审计载荷。
配置请求失败
请求参数错误 / HTTP 400 不等于权限不足、API 缺失或需要升级。先核对宿主入口、子命令和参数；多个域的只读 inspect 同样失败时，报告配置请求链路异常，附命令、错误码和时间供查日志。仅在接口、版本或日志证实能力缺失后建议升级；nexusctl 正常不代表 nexuscfg 正常，不得编造 inspection。
管理用户
平台管理员需要新增、修改或停用独立 Web 用户时，读取 references/members.md。不要调用旧 nexusctl user/auth，不要操作 Control 数据库或索取服务令牌。
Skill 内容与长期记忆
修改本地 Skill 的正文或脚本时，读取 references/skill-content.md，按来源与所属 Agent 选择文件编辑入口。
长期记忆的内容位于 Agent workspace 的 MEMORY.md 与 memory/。自己的记忆使用原生文件工具读写；主智能体修改其他 Agent 的记忆按 nexus-manager 的 workspace 入口读取、编辑并读回。用户也可在联系人 → 选择智能体 → 记忆中编辑，页面保存携带读取 revision。修改前读取当前内容并保留无关信息；文件保存与运行中模型的记忆加载分别核对。
Agent 创建与行为模板
创建 Agent 或修改已有 Agent 的角色职责、工作方式时，先读取 references/agent-profile-template.md，按创建或编辑流程处理 workspace 根级 AGENTS.md，保留基础规则并读回核对。名称、头像、目录摘要与 runtime 配置使用 agents 配置域。
© nexus-research-lab, 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
SKILL.md and 5 other files (references) in skills/nexus-configuration of nexus-research-lab/nexus.
- SKILL.md
- references/agent-profile-template.md
- references/members.md
- references/roles-and-domains.md
- references/skill-content.md
- references/troubleshooting.md
Open the folder on GitHubat commit 67f54e7
Compare with similar skills
Nexus Configuration 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 |
|---|---|---|---|---|---|---|
| Nexus Configuration this skillnexus-research-lab/nexus | 151 | — | ~798 | Automated safety check: Pass | Apache-2.0 | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server BuildershareAI-lab/learn-claude-code | 78k | 4 repos | ~1.2k | Automated safety check: Pass | MIT | |
| MCP Integration for Pluginsanthropics/claude-plugins-official | 38k | 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 | 8.5k | 6 repos | ~3.2k | Automated safety check: Notes | Apache-2.0 |
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Questions about Nexus Configuration
What does Nexus Configuration do?
在 Nexus 私聊或 Room 中检查和管理已授权配置，包括用户账号、Agent、Room、Provider、偏好、Channel、Connector、Skill、Session、模型、工具和 MCP。. Nexus Configuration is an agent skill from nexus-research-lab/nexus.
How do I install Nexus Configuration in Claude Code?
Run `npx skills add nexus-research-lab/nexus --skill nexus-configuration -a claude-code`. Or copy the skill folder (skills/nexus-configuration in nexus-research-lab/nexus) into .claude/skills/nexus-configuration in your project. Claude Code loads it when a task matches its description.
How do I install Nexus Configuration in Codex?
Run `npx skills add nexus-research-lab/nexus --skill nexus-configuration -a codex`. Or copy the skill folder (skills/nexus-configuration in nexus-research-lab/nexus) into .agents/skills/nexus-configuration in your project. Codex loads it when a task matches its description.
Can I use Nexus Configuration 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 nexus-research-lab/nexus --skill nexus-configuration -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nexus-configuration, .gemini/skills/nexus-configuration, .github/skills/nexus-configuration and .opencode/skills/nexus-configuration in your project.
What does Nexus Configuration need to run?
SKILL.md names no scripts, command-line tools or credentials: Nexus Configuration is instructions for the agent only.
Does Nexus Configuration 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 Nexus Configuration 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 Nexus Configuration use?
Nexus Configuration 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 Nexus Configuration use?
About 798 tokens (SKILL.md is roughly 3.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.5k tokens, read only when the agent opens those files.
What are the alternatives to Nexus Configuration?
Skills that share tags, products or a category with Nexus Configuration: 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, 38k 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 Nexus Configuration?
nexus-research-lab (a GitHub organization) maintains it in nexus-research-lab/nexus, which has 151 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 10, 2026.
Source: nexus-research-lab/nexus on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.