Agent skill

Attributed String

by gustavscirulis in gustavscirulis/snapgrid

AttributedString patterns for rich text formatting, alignment, selection, and SwiftUI integration.

Custom licenceAuto-check passedMobile

Install Attributed String

skills CLI
$ npx skills add gustavscirulis/snapgrid --skill attributed-string -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install gustavscirulis/snapgrid attributed-string --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/skills/foundation/attributed-string .claude/skills/attributed-string && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
attributed-string
GitHub stars
117
Used in
1 other repo
Token cost
~2.7k tokens
SKILL.md length
723 words
Files
1
Skills in repo
118
Repo updated
First seen
Licence
Custom licence

At a glance

AttributedString patterns for rich text formatting, alignment, selection, and SwiftUI integration.

  • Working with styled text
  • SKILL.md covers When This Skill Activates, Decision Tree, API Availability and Top 5 Mistakes, plus 9 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • AttributedString APIs

What it does

Attributed String is an agent skill from gustavscirulis/snapgrid. AttributedString patterns for rich text formatting, alignment, selection, and SwiftUI integration. Use when working with styled text, text editing, or AttributedString APIs.

Its SKILL.md is about 2.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Mobile, covering iOS development. It works with SwiftUI, iOS and macOS. The repository describes itself as: SnapGrid is an open-source Mac app for collecting, organizing, and analyzing UI screenshots. It uses AI to automatically detect UI components and patterns, making it a powerful…

When your agent uses it

  • Working with styled text
  • AttributedString APIs

Example prompts

  • “/attributed-string”

Requirements

  • Pre-approved tools (allowed-tools): Read, Glob, Grep

What it can do on your machine

Read from SKILL.md and the folder at commit eb7eaf4. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are swift).

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

  • Network

    Links to these hosts (documentation or services it may open):

    • developer.apple.com

    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

Attributed String loads about 2.7k tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 723 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~2.7k

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

Auto-check passed

The automated check found no risky patterns in SKILL.md.

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 723 words (~2,726 tokens).

“Correct API shapes and patterns for Foundation's AttributedString. Covers creating styled text, applying attributes to ranges, text alignment, writing direction, line height control, text selection and editing, discontiguous substrings, and SwiftUI integration.”

— opening of SKILL.md by gustavscirulis, Custom licence
name
attributed-string
allowed-tools
Read, Glob, Grep

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/skills/foundation/attributed-string of gustavscirulis/snapgrid.

Open the folder on GitHubat commit eb7eaf4

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in gustavscirulis/snapgrid, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Attributed String next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Attributed String compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Attributed String this skillgustavscirulis/snapgrid1171 repos~2.7kAutomated safety check: PassCustom licence
Swiftui Expert Skillomarshahine/HomeClaw1764 repos~2.8kAutomated safety check: PassMIT
Hig Project Contextraintree-technology/hig-doctor1435 repos~1.2kAutomated safety check: PassMIT
Swiftui Expert SkillEslzzyl/Pixiv-SwiftUI1111 repos~2.9kAutomated safety check: PassAGPL-3.0
Hig Components Contentraintree-technology/hig-doctor1435 repos~1.3kAutomated safety check: PassMIT
SwiftUI Design SkillWholiver/swiftui-design-skill210—~2.8kAutomated safety check: PassMIT

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Works with

Categories

Questions about Attributed String

What does Attributed String do?

AttributedString patterns for rich text formatting, alignment, selection, and SwiftUI integration. Attributed String is an agent skill from gustavscirulis/snapgrid. AttributedString patterns for rich text formatting, alignment, selection, and SwiftUI integration.

When should I use Attributed String?

Attributed String fits situations like: working with styled text; attributedString APIs.

How do I install Attributed String in Claude Code?

Run `npx skills add gustavscirulis/snapgrid --skill attributed-string -a claude-code`. Or copy the skill folder (.claude/skills/skills/foundation/attributed-string in gustavscirulis/snapgrid) into .claude/skills/attributed-string in your project. Claude Code loads it when a task matches its description.

How do I install Attributed String in Codex?

Run `npx skills add gustavscirulis/snapgrid --skill attributed-string -a codex`. Or copy the skill folder (.claude/skills/skills/foundation/attributed-string in gustavscirulis/snapgrid) into .agents/skills/attributed-string in your project. Codex loads it when a task matches its description.

Can I use Attributed String in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add gustavscirulis/snapgrid --skill attributed-string -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/attributed-string, .gemini/skills/attributed-string, .github/skills/attributed-string and .opencode/skills/attributed-string in your project.

What does Attributed String need to run?

SKILL.md names no scripts, command-line tools or credentials: Attributed String is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep.

Does Attributed String access the network?

SKILL.md names 1 domain. As links in the text: developer.apple.com. This is read from the text; nothing was executed.

Is Attributed String safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Attributed String use?

Attributed String has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Attributed String use?

About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Attributed String?

Skills that share tags, products or a category with Attributed String: Swiftui Expert Skill (omarshahine/HomeClaw, 176 stars), Hig Project Context (raintree-technology/hig-doctor, 143 stars), Swiftui Expert Skill (Eslzzyl/Pixiv-SwiftUI, 111 stars) and Hig Components Content (raintree-technology/hig-doctor, 143 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Attributed String?

gustavscirulis (a GitHub user) maintains it in gustavscirulis/snapgrid, which has 117 GitHub stars. The repository holds 118 skills in this directory. The repository was last updated on April 30, 2026.

Source: gustavscirulis/snapgrid on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.