compatibility — Whether current UTC year has Feb 29 MCP Tool
compatibility
(compatibility) is one of 31 tools on the
Whether current UTC year has Feb 29
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call compatibility from your client
- Claude Code Whether current UTC year has Feb 29 compatibility run in your project directory
- Claude Desktop Whether current UTC year has Feb 29 compatibility ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Whether current UTC year has Feb 29 compatibility ~/.cursor/mcp.json
- VS Code Whether current UTC year has Feb 29 compatibility .vscode/mcp.json
- Zed Whether current UTC year has Feb 29 compatibility ~/.config/zed/settings.json
- Windsurf Whether current UTC year has Feb 29 compatibility ~/.codeium/windsurf/mcp_config.json
- Cline Whether current UTC year has Feb 29 compatibility ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Whether current UTC year has Feb 29 compatibility ~/.gemini/settings.json
- Grok Whether current UTC year has Feb 29 compatibility .mcp.json (in your project root)
- ChatGPT Whether current UTC year has Feb 29 compatibility Settings → Connectors → Advanced → Developer mode
- Claude.ai Whether current UTC year has Feb 29 compatibility Settings → Connectors → Add custom connector
- LangChain Whether current UTC year has Feb 29 compatibility pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http leap-day https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/leap-day/mcp
Other tools on this server
- leap-day
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- citation
- 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
- calc-eval
- 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.