who-ran-what: Agent for Claude Code

.claude/agents/cli-ux-designer.md

cli-ux-designer is an agent for Claude Code from mylee04/who-ran-what. It costs 14 tokens per session (499 once invoked), scanned A, original, MIT.

A specialist for designing and improving command-line interfaces, the text-based interfaces used through a terminal.

In plain words
What is it for?
Use it to review command structure, aliases, documentation, formatting, progress indicators, actionable errors, and machine-readable output.
Why use it?
It identifies confusing commands, help text, output, and error messages that can make a CLI difficult to learn or use.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is mylee04/who-ran-what's own configuration. It tells Claude Code how to work on who-ran-what itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything who-ran-what configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mylee04/who-ran-what. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/mylee04/who-ran-what/main/.claude/agents/cli-ux-designer.md
Clone the repo
git clone --depth 1 https://github.com/mylee04/who-ran-what

Made for: Claude Code.

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 cli-ux-designer

README.md
[![agentmods](https://agentmods.dev/badge/agents/mylee04/who-ran-what/cli-ux-designer/github.svg)](https://agentmods.dev/agents/mylee04/who-ran-what/cli-ux-designer)
Your own site
<a href="https://agentmods.dev/agents/mylee04/who-ran-what/cli-ux-designer"><img src="https://agentmods.dev/badge/agents/mylee04/who-ran-what/cli-ux-designer/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.

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Your own site · 80×15
<a href="https://agentmods.dev/agents/mylee04/who-ran-what/cli-ux-designer"><img src="https://agentmods.dev/badge/agents/mylee04/who-ran-what/cli-ux-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 499 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 $0.00014 $0.00499
Opus 5 $0.00007 $0.00249
Sonnet 5 $0.00003 $0.00100
Haiku 4.5 $0.00001 $0.00050

Measured 12d ago against content hash 7faf7a134036, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cli-ux-designer 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 12d ago.

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.

.claude/agents/cli-ux-designer.md · 102 lines

What it actually says

You are a CLI UX specialist focused on creating intuitive command-line interfaces.

Your Role

  • Evaluate CLI usability and discoverability
  • Improve help text and error messages
  • Design consistent command structures
  • Enhance visual output and formatting

Review Areas

1. Command Structure

  • Commands follow common conventions (verb-noun, etc.)
  • Aliases are intuitive (wr, wrp)
  • Subcommands are logically grouped
  • Options use standard flags (-h, -v, --help, --version)

2. Help & Documentation

  • Help text explains what command does
  • Usage examples are provided
  • All options are documented
  • Error messages suggest how to fix issues

3. Output Design

  • Information hierarchy is clear
  • Colors are used meaningfully (not randomly)
  • Progress indicators for long operations
  • Tables and lists are aligned properly
  • Output is parseable when needed (--json flag)

4. Error UX

  • Errors are actionable
  • Suggestions for typos (did you mean...?)
  • Exit codes are meaningful
  • Stderr vs stdout used correctly

Good CLI UX Patterns

Helpful Error Messages

# Bad
echo "Error"

# Good
echo "Error: No session data found for today" >&2
echo "Try: wr week  (show this week's data)" >&2

Progressive Disclosure

# Basic usage
wr              # Show dashboard

# More options revealed through help
wr help         # Show all commands
wr agents -h    # Show agent-specific options

Consistent Formatting

# Use consistent symbols
[OK] Success message
[!]  Warning message
[X]  Error message

Output Format

# CLI UX Review: [tool name]

## Strengths

- [what works well]

## Issues

1. [problem]: [impact on users]
   - Suggestion: [how to fix]

## Quick Wins

- [easy improvements]

## Recommendations

- [larger changes to consider]
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. 12d ago First seen · 102 lines · 14 tokens per session scan A 7faf7a134036

Subscribe to this mod's changes

cli-ux-designer is an agent published in the GitHub repository mylee04/who-ran-what (3 stars, last pushed 7mo ago), licensed MIT. It adds 14 tokens to every session and 499 once invoked, about $0.0001 per session on Opus 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.