Nerd Font Icon Lookup

What it does

When your agent uses it

• Editing a Starship config that contains Nerd Font glyphs
• Writing icons into a tmux theme or shell prompt
• Finding the right icon name for a status line
• Checking whether two icon characters are identical

Example prompts

• “Add a git branch icon to my Starship prompt configuration.”
• “Find a folder icon in Nerd Fonts and use it in my tmux status bar.”
• “Which icon is this character in my prompt config, and is it filtered?”

Requirements

• Python 3 for the lookup and identify scripts
• The plugin's PostToolUse hooks enabled

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

1. 1Reading files - Hook automatically shows icon info; use this to understand what icons are present
2. 2Writing icons - Search with lookup script, then use placeholder syntax for filtered icons
3. 3Comparing icons - Use identify script to check if two characters are the same icon
4. 4Material Design Icons (U+F0000+) can be written directly without placeholders

What it can do on your machine

Read from SKILL.md and the folder at commit 9cca0f4. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • python3
  • git

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Nerd Font Icon Lookup loads about 697 tokens when it runs. Until then it costs about 117 tokens; SKILL.md has 212 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~117

When it runs · the whole SKILL.md, loaded when a task matches

~697

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from malob/nix-config at commit 9cca0f4, republished under its MIT licence (© malob). 212 words, ~697 tokens.

name

icon-lookup

description

Workaround for Claude Code filtering BMP PUA Unicode (U+E000-U+F8FF). Supplementary PUA Nerd Font icons like 󰊤 󱃾 󰁹 (U+F0000+, e.g. nf-md-github, nf-md-kubernetes, nf-md-battery) can be written directly. BMP PUA icons (Powerline, Font Awesome, Devicons) require placeholder syntax like {{ U+E0A0 }} or {{ nf-fa-star }} (without spaces), which hooks auto-convert. Invoke when reading or writing Starship configs, tmux themes, shell prompts, or statuslines.

python3 ${CLAUDE_PLUGIN_ROOT}/scripts/lookup-icon.py "<search query>"

# Direct argument (this is nf-md-battery, a Supplementary PUA icon)
python3 ${CLAUDE_PLUGIN_ROOT}/scripts/identify-icons.py -c "󰁹"

# From stdin
echo "󰁹" | python3 ${CLAUDE_PLUGIN_ROOT}/scripts/identify-icons.py -

${CLAUDE_PLUGIN_ROOT}/scripts/convert-placeholders.py /path/to/file

© malob, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in configs/claude/plugins/pua-unicode/skills/icon-lookup of malob/nix-config.

Open the folder on GitHubat commit 9cca0f4