Generate ASCII art cowsay/cowthink messages with 100+ character skins via cowsay-mcp (npx) — 4 tools

Verified by real stdio MCP execution — 11 tool calls, 11/11 succeeded, sub-millisecond latency.

Install & connect

npm install --prefix /tmp/cowsay-mcp-test [email protected]

Entry: node /tmp/cowsay-mcp-test/node_modules/cowsay-mcp/dist/index.js (stdio)

Tools discovered (listTools)

Execution traces

cowsay (default cow) — 2ms

> callTool("cowsay", {message: "Hello from pathfinder!"})
 ________________________
< hello from pathfinder! >
 ------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

cowsay with character=tux — 1ms

> callTool("cowsay", {message: "I am Tux!", character: "tux"})
 ___________
< i am tux! >
 -----------
   \
    \
        .--.
       |o_o |
       |:_/ |
      //   \ \
     (|     | )
    /'\_   _/`\
    \___)=(___/

cowsay with character=stegosaurus — 0ms

> callTool("cowsay", {message: "Stegosaurus!", character: "stegosaurus"})
 ______________
< stegosaurus! >
 --------------
\                             .       .
 \                           / `.   .' "
  \                  .---.  <    > <    >  .---.
   \                 |    \  \ - ~ ~ - /  /    |
         _____          ..-~             ~-..-~
        |     |   \~~~\.'                    `./~~~/

cowthink with character=dragon — 0ms

> callTool("cowthink", {message: "Deep thoughts...", character: "dragon"})
 __________________
( deep thoughts... )
 ------------------
      o                    / \  //\
       o    |\___/|      /   \//  \\
            /o  o  \__  /    //  | \ \

list_cows — 1ms: Returns 100+ character names including C3PO, R2-D2, tux, dragon, stegosaurus, daemon, clippy, docker-whale, doge, cthulhu-mini, etc.

get_version — 0ms: cowsay-mcp version: 2.0.0

cowsay special characters — 0ms: HTML entities, quotes, ampersands all pass through cleanly.

cowsay empty message — 1ms: Returns graceful error "Failed to generate cowsay output" (no crash).

Gotchas

• The character parameter (not cow) selects the skin. Default is the classic cow.
• Messages are lowercased in the output bubble.
• Empty message produces a soft error (not a crash), tool returns error text in content.
• Word wrapping does NOT honor wrap parameter — it's not in the schema; messages render on one line regardless of length.