4.2 Shared instructions, skills and MCP servers

What is shared

1. On the AI page, choose the “Shared by the agents” row and press “Open shared folder” (it is also on the Agents pane's title).
2. Edit AGENTS.md with a text editor, add folders in skills or servers in mcp.json.
3. The change reaches the agents at their next start (or right away, if you restart the app).

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-filesystem", "."]
    },
    "docs": {
      "type": "http",
      "url": "https://example.com/mcp"
    }
  }
}

The kit's MCP servers and the ready servers

1. On the AI page, choose the “Shared by the agents” row: below “Instructions and skills” there is the “The kit's MCP servers” box, the list of data\agents\mcp.json.
2. Under “Ready servers” press “Add” beside the server you need; for another server press “Add a server” and fill in name, type and program or address.
3. Atollo writes mcp.json and syncs the agents at once: Claude Code, Codex, Antigravity and Pi have the server without waiting for their next start. “Remove” on a row removes it.

How the sync works

• Instructions: AGENTS.md is copied as CLAUDE.md for Claude Code and as AGENTS.md for Codex, Antigravity and Pi. If you edit one of those files, the change goes back into AGENTS.md and on to the others. If both sides change, the most recent wins and the other is kept in the conflicts folder.
• Skills: each agent sees the skills folder through a link (copies on FAT32 and exFAT drives). A skill created inside an agent is moved to data\agents\skills and becomes everyone's; a skill deleted in an agent is set aside and can be recovered.
• MCP servers: mcp.json is translated into each agent's format. With Claude Code it works in both directions: a server added with claude mcp add -s user goes back into mcp.json. Codex, Antigravity and Pi receive the kit's servers and leave alone the ones you added by hand in their configurations. Pi does not accept SSE servers: the kit leaves them out of its mcp.json, with a warning.

MCP servers for a single project

1. Open the project, “Editor” section, “Project MCP servers” box.
2. For a ready server press “Add” beside it under “Ready servers”: filesystem (the files, only in the project's folder) and, once the project's database has been created with “Create database and user”, mysql or mongodb. For another server go on with the next step.
3. Press “Add a server”.
4. Write the “Name” (letters, digits, - and _) and choose the “Type”: “program” (with “Program”, for example npx, and the “Arguments, one per line”) or “address (http)” (with the “Address”).
5. Press “Add”. “Remove” on a row removes it.

These servers apply only in that project, in addition to the kit's. Claude Code reads them from the project's .mcp.json file (and asks for confirmation on first use); Codex from .codex\config.toml, which Atollo keeps in sync; Antigravity and Pi use only the kit's servers. The programs they need (Node for npx, uv for uvx) are installed when the agent starts; the project's database reaches the mysql or mongodb server as a variable, never written in .mcp.json, which may be in the repository.