Mailbox Operations Hub
agentscope-ai/QwenPaw
Connects, registers, and operates a personal mailbox, reading, searching, sending, and organizing, through a managed mail server for nine domains.
收发邮件，与团队成员通信。第27课新增：支持向 human.json 发消息（单一接口约束：只有 manager 可以发）。
No licenceAuto-check passed
Install Mailbox
$ npx skills add kid0317/crewai_mas_demo --skill mailbox -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kid0317/crewai_mas_demo mailbox --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/kid0317/crewai_mas_demo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/m4l27/workspace/manager/skills/mailbox .claude/skills/mailbox && 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 "mailbox" agent skill from https://github.com/kid0317/crewai_mas_demo/tree/main/m4l27/workspace/manager/skills/mailbox into .claude/skills/mailbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mailbox", 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/kid0317/crewai_mas_demo/tree/main/m4l27/workspace/manager/skills/mailboxType 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 kid0317/crewai_mas_demo --skill mailbox -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kid0317/crewai_mas_demo mailbox --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kid0317/crewai_mas_demo.git skills-src && mkdir -p .agents/skills && cp -r skills-src/m4l27/workspace/manager/skills/mailbox .agents/skills/mailbox && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "mailbox" agent skill from https://github.com/kid0317/crewai_mas_demo/tree/main/m4l27/workspace/manager/skills/mailbox into .agents/skills/mailbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mailbox", 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 kid0317/crewai_mas_demo --skill mailbox -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kid0317/crewai_mas_demo mailbox --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kid0317/crewai_mas_demo.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/m4l27/workspace/manager/skills/mailbox .cursor/skills/mailbox && 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 "mailbox" agent skill from https://github.com/kid0317/crewai_mas_demo/tree/main/m4l27/workspace/manager/skills/mailbox into .cursor/skills/mailbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mailbox", 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/kid0317/crewai_mas_demo.git --path m4l27/workspace/manager/skills/mailbox--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 kid0317/crewai_mas_demo --skill mailbox -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kid0317/crewai_mas_demo mailbox --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kid0317/crewai_mas_demo.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/m4l27/workspace/manager/skills/mailbox .gemini/skills/mailbox && 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 "mailbox" agent skill from https://github.com/kid0317/crewai_mas_demo/tree/main/m4l27/workspace/manager/skills/mailbox into .gemini/skills/mailbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mailbox", 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 kid0317/crewai_mas_demo mailboxInstalls 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 kid0317/crewai_mas_demo --skill mailbox -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kid0317/crewai_mas_demo.git skills-src && mkdir -p .github/skills && cp -r skills-src/m4l27/workspace/manager/skills/mailbox .github/skills/mailbox && 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 "mailbox" agent skill from https://github.com/kid0317/crewai_mas_demo/tree/main/m4l27/workspace/manager/skills/mailbox into .github/skills/mailbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mailbox", 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 kid0317/crewai_mas_demo --skill mailbox -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install kid0317/crewai_mas_demo mailbox --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kid0317/crewai_mas_demo.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/m4l27/workspace/manager/skills/mailbox .opencode/skills/mailbox && 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 "mailbox" agent skill from https://github.com/kid0317/crewai_mas_demo/tree/main/m4l27/workspace/manager/skills/mailbox into .opencode/skills/mailbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mailbox", 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
mailbox- GitHub stars
- 164
- Token cost
- ~726 tokens
- SKILL.md length
- 136 words
- Files
- 2 (incl. scripts)
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- None found
At a glance
收发邮件，与团队成员通信。第27课新增：支持向 human.json 发消息（单一接口约束：只有 manager 可以发）。
- Works in 5 steps: 单一接口约束：只有 manager 可以给 human.json 发消息，PM… → Human 邮箱使用二态：human.json 用 read:… → 发完通知就结束：发给 Human 的消息不需要等待回复，Human 通过… → …
- SKILL.md covers 安装依赖（首次使用前运行一次）, 发送邮件（给 PM，三态状态机）, 通知 Human（给 human，二态… and 检查 Human 是否已确认（第27课新增）, plus 5 more sections
- Runs Python scripts from its folder; calls python3 and pip
What it does
Mailbox is an agent skill from kid0317/crewai_mas_demo. 收发邮件，与团队成员通信。第27课新增：支持向 human.json 发消息（单一接口约束：只有 manager 可以发）。
Its SKILL.md is about 730 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/mailbox_cli.py`).
Example prompts
- “/mailbox”
Requirements
- Python 3
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- 单一接口约束：只有 manager 可以给 human.json 发消息，PM 不能直接联系 Human
- Human 邮箱使用二态：human.json 用 read: false/true，而非三态 status
- 发完通知就结束：发给 Human 的消息不需要等待回复，Human 通过 human_cli.py 异步确认
- 邮件内容只写路径引用，不把文档全文放进邮件
- 处理完消息后必须调用 done（仅 Agent 邮箱，human.json 不需要）
What it can do on your machine
Read from SKILL.md and the folder at commit d5cfc79. 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
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python3pip
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pip, which can reach the network depending on how they are called.
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
Mailbox loads about 726 tokens when it runs. Until then it costs about 18 tokens; SKILL.md has 136 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); the scripts in this folder are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 136 words (~726 tokens).
“⚠️ 重要：通过 skill_loader 加载本 Skill 后，按照下面的命令在沙盒中执行操作。 不要直接调用 mailbox 作为工具名——所有操作都通过沙盒 Bash 执行。”
- name
- mailbox
- type
- task
Files
SKILL.md and 1 other file (scripts) in m4l27/workspace/manager/skills/mailbox of kid0317/crewai_mas_demo.
- SKILL.md
- scripts/mailbox_cli.py
Open the folder on GitHubat commit d5cfc79
Compare with similar skills
Mailbox 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 |
|---|---|---|---|---|---|---|
| Mailbox this skillkid0317/crewai_mas_demo | 164 | — | ~726 | Automated safety check: Pass | None | |
| Mailbox Operations Hubagentscope-ai/QwenPaw | 36k | — | ~2.6k | Automated safety check: Pass | Apache-2.0 | |
| QwenPaw Mailbox Operationsagentscope-ai/QwenPaw | 36k | — | ~1.3k | Automated safety check: Pass | Apache-2.0 | |
| Mailboxritchiecarroll/go2cs | 400 | — | ~8k | Automated safety check: Pass | Custom licence | |
| Mailbox BridgeWrongStack/WrongStack | 370 | — | ~3.9k | Automated safety check: Pass | MIT | |
| Wrongstack MailboxWrongStack/WrongStack | 370 | — | ~3.5k | Automated safety check: Pass | MIT |
Similar skills
QwenPaw Mailbox Operations
agentscope-ai/QwenPaw
Single entry point for email tasks in QwenPaw through qwenpawmail-mcp: read, search, send, reply, organize, and bind or register a personal mailbox.
Mailbox
ritchiecarroll/go2cs
Post to or read the fleet mailbox. An agent skill from ritchiecarroll/go2cs.
Mailbox Bridge
WrongStack/WrongStack
A skill your agent uses when external coding agents (Claude Code, Aider, custom scripts) need to participate in the project's shared WrongStack mailbox, or when a user asks to "expose the mailbox"…
Wrongstack Mailbox
WrongStack/WrongStack
A skill your agent uses when the user wants to communicate with WrongStack's shared project mailbox from outside WrongStack — read messages sent by WrongStack agents, send replies, broadcast to all…
Wrongstack Mailbox MCP
WrongStack/WrongStack
Coordinate with WrongStack agents through the project-scoped Mailbox MCP server.
More from kid0317/crewai_mas_demo
All 12 skills in this repoSkill Creator
kid0317/crewai_mas_demo
Create new skills and save them to the project's shared skills directory.
Mailbox Ops
kid0317/crewai_mas_demo
数字员工邮箱操作（三态状态机）：sendmail / readinbox / markdone / markdoneall / resetstale。
Memory Governance
kid0317/crewai_mas_demo
A skill your agent uses to audit and clean up workspace memory files and the skills directory.
Memory Save
kid0317/crewai_mas_demo
A skill your agent uses to persist important information from the conversation to workspace files so it survives across sessions.
Self Retrospective
kid0317/crewai_mas_demo
Agent 自我复盘：读取 L2/L3/L1 日志，调用 LLM 生成结构化改进提案， 写入 proposals.json 并发通知至 human.json 等待审批。
Software Dev Sop
kid0317/crewai_mas_demo
Software development delivery SOP for an Orchestrator agent.
Questions about Mailbox
What does Mailbox do?
收发邮件，与团队成员通信。第27课新增：支持向 human.json 发消息（单一接口约束：只有 manager 可以发）。. Mailbox is an agent skill from kid0317/crewai_mas_demo.
How do I install Mailbox in Claude Code?
Run `npx skills add kid0317/crewai_mas_demo --skill mailbox -a claude-code`. Or copy the skill folder (m4l27/workspace/manager/skills/mailbox in kid0317/crewai_mas_demo) into .claude/skills/mailbox in your project. Claude Code loads it when a task matches its description.
How do I install Mailbox in Codex?
Run `npx skills add kid0317/crewai_mas_demo --skill mailbox -a codex`. Or copy the skill folder (m4l27/workspace/manager/skills/mailbox in kid0317/crewai_mas_demo) into .agents/skills/mailbox in your project. Codex loads it when a task matches its description.
Can I use Mailbox 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 kid0317/crewai_mas_demo --skill mailbox -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mailbox, .gemini/skills/mailbox, .github/skills/mailbox and .opencode/skills/mailbox in your project.
What does Mailbox need to run?
Going by SKILL.md and its folder, Mailbox needs Python for the scripts in its folder and the command-line tools its instructions call (python3 and pip). Our summary lists: Python 3.
Does Mailbox access the network?
SKILL.md contains no URLs. Its commands use pip, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Mailbox 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Mailbox use?
No licence was found for Mailbox or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Mailbox use?
About 726 tokens (SKILL.md is roughly 2.9k 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 Mailbox?
Skills that share tags, products or a category with Mailbox: Mailbox Operations Hub (agentscope-ai/QwenPaw, 36k stars), QwenPaw Mailbox Operations (agentscope-ai/QwenPaw, 36k stars), Mailbox (ritchiecarroll/go2cs, 400 stars) and Mailbox Bridge (WrongStack/WrongStack, 370 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Mailbox?
kid0317 (a GitHub user) maintains it in kid0317/crewai_mas_demo, which has 164 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on May 25, 2026.
Source: kid0317/crewai_mas_demo on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.