cowsay

cowsay is a skill for Claude Code from trtmn/agent-plugins. It costs 34 tokens per session (571 once invoked), scanned A, original, Unlicense.

A small command that makes an ASCII cow, or another supported character, display a supplied message in a speech bubble. ASCII means pictures made from ordinary text characters.

In plain words
What is it for?
It is for showing custom messages as terminal output, such as greetings, status notes, or short development messages.
Why use it?
It provides a quick text-based way to present a message in the familiar cowsay format without creating an image.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the cowsay plugin — 1 skill shipped together

Good fit It is for showing custom messages as terminal output, such as greetings, status notes, or short development messages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/trtmn/agent-plugins/cowsay
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add trtmn/agent-plugins --skill cowsay
Clone the repo
git clone --depth 1 https://github.com/trtmn/agent-plugins

Made for: Claude Code.

Or install cowsay, the plugin that ships this one along with the rest of its 1 skill.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cowsay

README.md
[![agentmods](https://agentmods.dev/badge/skills/trtmn/agent-plugins/cowsay/github.svg)](https://agentmods.dev/skills/trtmn/agent-plugins/cowsay)
Your own site
<a href="https://agentmods.dev/skills/trtmn/agent-plugins/cowsay"><img src="https://agentmods.dev/badge/skills/trtmn/agent-plugins/cowsay/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cowsay

Your own site · 80×15
<a href="https://agentmods.dev/skills/trtmn/agent-plugins/cowsay"><img src="https://agentmods.dev/badge/skills/trtmn/agent-plugins/cowsay.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 571 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00034 $0.00571
Opus 5.5 $0.00014 $0.00228
Sonnet 5.5 $0.00007 $0.00114
Haiku 4.5 $0.00003 $0.00057

Measured 1mo ago against content hash df31fa70a8ee, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cowsay scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/cowsay.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/cowsay/skills/cowsay/SKILL.md · 67 lines

What it actually says

cowsay

Run the Python cowsay package to show an ASCII cow (or other character) saying the user's custom text.

When to use

  • User asks for a cow to say something (e.g. "make a cow say hello", "cowsay hello world").
  • User provides custom text they want displayed in cowsay style.

Instructions

  1. Get the text – Use the exact phrase or sentence the user wants the cow to say. If they didn’t specify, ask or use a short default (e.g. "Hello!").
  2. Run cowsay – Execute the script (uses uvx cowsay so no install or local-dir conflict):
    • bash /mnt/skills/user/cowsay/scripts/cowsay.sh "user's text here"
    • Escape or quote the text so spaces and special characters are preserved.
  3. Show the result – Present the command output to the user as the cow’s speech bubble.

Usage

bash /mnt/skills/user/cowsay/scripts/cowsay.sh "Your message here"

Requires uv (or run uvx cowsay "Your message here" directly).

Arguments:

  • Message text – The line the cow should say (default: use the text the user provided or ask).

Examples:

  • bash /mnt/skills/user/cowsay/scripts/cowsay.sh "Hello, world!"
  • bash /mnt/skills/user/cowsay/scripts/cowsay.sh "Ship it!"

Output

The tool prints an ASCII-art cow with the given text in a speech bubble. Example:

 _____________
< Hello world! >
 -------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Present results to user

Show the cowsay output in a code block (e.g. preformatted text) so the cow art is aligned correctly.

Troubleshooting

  • uvx: command not found – Install uv, then uvx cowsay will work.
  • Broken layout – Use a fixed-width font when displaying the output.
  • Special characters – Keep the message in quotes so the shell doesn’t split or interpret it.
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 67 lines · 34 tokens per session scan A df31fa70a8ee

Subscribe to this mod's changes

cowsay is a skill published in the GitHub repository trtmn/agent-plugins (2 stars, last pushed 11d ago), licensed Unlicense. It adds 34 tokens to every session and 571 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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