calc-eval — Slug character check MCP Tool
calc-eval
(calc eval) is one of 31 tools on the
Slug character check
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 Slug character check calc-eval run in your project directory
- Claude Desktop Slug character check calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Slug character check calc-eval ~/.cursor/mcp.json
- VS Code Slug character check calc-eval .vscode/mcp.json
- Zed Slug character check calc-eval ~/.config/zed/settings.json
- Windsurf Slug character check calc-eval ~/.codeium/windsurf/mcp_config.json
- Cline Slug character check calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Slug character check calc-eval ~/.gemini/settings.json
- Grok Slug character check calc-eval .mcp.json (in your project root)
- ChatGPT Slug character check calc-eval Settings → Connectors → Advanced → Developer mode
- Claude.ai Slug character check calc-eval Settings → Connectors → Add custom connector
- LangChain Slug character check calc-eval pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http slug-ok https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/slug-ok/mcp
Other tools on this server
- slug-ok
- 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.