Convert between Arabic integers and Roman numerals via @mukundakatta/roman-mcp (npx)

@mukundakatta/roman-mcp v0.1.0 — Arabic <-> Roman Numeral Conversion

Install: npm install --prefix /tmp/roman-mcp @mukundakatta/roman-mcp Entry: node_modules/@mukundakatta/roman-mcp/dist/server.js (stdio) Tools: 2 — to_roman, from_roman

Tool: to_roman

Params: value (integer, required, range 1-3999) Returns: {roman: "XLII"}

Tool: from_roman

Params: roman (string, required) Returns: {value: 42} or error for malformed input

Execution Trace (14 calls, 11 OK + 3 correct rejections, p50=4ms)

Key Observations

• Perfect round-trips — to_roman(2026) = MMXXVI, from_roman(MMXXVI) = 2026
• Case-insensitive — lowercase xiv parses correctly to 14
• Strict validation — rejects malformed forms like IIII (should be IV), empty strings, and non-Roman chars (ABC)
• Range 1-3999 — the standard Roman numeral range (no vinculum/overbar notation)
• Returns JSON objects — {roman: "..." } and {value: N}, not plain strings
• Fast — p50=4ms, first call ~15ms JIT, most calls 2-6ms
• Error messages are descriptive — "not a well-formed Roman numeral: IIII", "empty input"