calc-eval — Rata Die day band MCP Tool
calc-eval
(calc eval) is one of 31 tools on the
Rata Die day band
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call calc-eval from your client
- Claude Code Rata Die day band calc-eval run in your project directory
- Claude Desktop Rata Die day band calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Rata Die day band calc-eval ~/.cursor/mcp.json
- VS Code Rata Die day band calc-eval .vscode/mcp.json
- Zed Rata Die day band calc-eval ~/.config/zed/settings.json
- Windsurf Rata Die day band calc-eval ~/.codeium/windsurf/mcp_config.json
- Cline Rata Die day band calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Rata Die day band calc-eval ~/.gemini/settings.json
- Grok Rata Die day band calc-eval .mcp.json (in your project root)
- ChatGPT Rata Die day band calc-eval Settings → Connectors → Advanced → Developer mode
- Claude.ai Rata Die day band calc-eval Settings → Connectors → Add custom connector
- LangChain Rata Die day band calc-eval pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http rd-n https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/rd-n/mcp
Other tools on this server
- rd-n
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- citation
- compatibility
- status-catalog
- iana-zones
- web-fetch
- fetch-status
- github-repo-shape
- weather-hint
- memory-key-count
- file-path-ok
- browser-url-ok
- think-steps
- search-query-len
- hn-front-count
- lib-docs-hint
- playwright-url-ok
- figma-url-shape
- jira-key-shape
- geo-hint
- wiki-title-ok
- agent-tool-index
- people-search-index
- agent-ads-index
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.