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Agent skill

Shared

by gustavscirulis in gustavscirulis/snapgrid

Platform-agnostic skills including skill creation templates and best practices.

Custom licenceAuto-check: notesAgent Workflows

Install Shared

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

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

GitHub CLI
$ gh skill install gustavscirulis/snapgrid shared --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/shared .claude/skills/shared && 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
shared
GitHub stars
117
Used in
1 other repo
Token cost
~380 tokens
SKILL.md length
180 words
Files
1
Skills in repo
118
Repo updated
First seen
Licence
Custom licence

At a glance

Platform-agnostic skills including skill creation templates and best practices.

  • Works in 4 steps: Identify user's need from their question → Read relevant module files from… → Apply the guidance to their specific… → …
  • Creating new skills
  • SKILL.md covers When This Skill Activates, Available Modules, How to Use and Example Workflow
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Shared is an agent skill from gustavscirulis/snapgrid. Platform-agnostic skills including skill creation templates and best practices. Use when creating new skills or improving existing ones.

Its SKILL.md is about 380 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 Agent Workflows. 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

  • Creating new skills
  • Improving existing ones

Example prompts

  • “/shared”

Requirements

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

Workflow steps

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

  1. Identify user's need from their question
  2. Read relevant module files from subdirectories
  3. Apply the guidance to their specific context
  4. Provide examples from existing skills when helpful

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
    • Write
    • Glob
    • Grep
    • Bash

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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

Shared loads about 380 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 180 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~36
When it runs · the whole SKILL.md, loaded when a task matches
~380

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Write, Glob, Grep, Bash

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 180 words (~380 tokens).

“Platform-agnostic skills that work across iOS, macOS, and other Apple platforms. This category provides foundational tools for extending Claude Code's capabilities.”

— opening of SKILL.md by gustavscirulis, Custom licence
name
shared
allowed-tools
Read, Write, Glob, Grep, Bash

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/skills/shared 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

Shared 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.

Shared compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Shared this skillgustavscirulis/snapgrid1171 repos~380Automated safety check: NotesCustom licence
MCP Server Builderanthropics/skills180k64 repos~2.3kAutomated safety check: PassApache-2.0
Hook Development for Claude Code Pluginsanthropics/claude-plugins-official38k11 repos~4.1kAutomated safety check: NotesApache-2.0
Using Superpowersfarm-fe/farm5.6k35 repos~1.4kAutomated safety check: PassMIT
Executing Plans Inlineobra/superpowers296k2 repos~5.1kAutomated safety check: PassMIT
Claude Code Agent Developmentanthropics/claude-plugins-official38k8 repos~2.8kAutomated safety check: PassApache-2.0

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  • MCP Server Builder

    anthropics/skills

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    Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.

    180k GitHub starsUsed in 64 repos~2.3k tokens
    Agent WorkflowsAuto-check passed

  • Hook Development for Claude Code Plugins

    anthropics/claude-plugins-official

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    Explains how to write Claude Code plugin hooks, both prompt-based checks and bash commands, for events such as PreToolUse, Stop and SessionStart.

    38k GitHub starsUsed in 11 repos~4.1k tokens
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  • Using Superpowers

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    5.6k GitHub starsUsed in 35 repos~1.4k tokens
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  • Executing Plans Inline

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    Has the agent carry out an implementation plan itself, task by task in the current session, keeping a ledger, proving each step with a test and ending with one whole-branch review.

    296k GitHub starsUsed in 2 repos~5.1k tokens
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More from gustavscirulis/snapgrid

All 118 skills in this repo

  • Interaction Design

    gustavscirulis/snapgrid

    Design and implement microinteractions, motion design, transitions, and user feedback patterns.

    117 GitHub starsUsed in 3 repos~2k tokens
    Auto-check passed

  • Core ML

    gustavscirulis/snapgrid

    Core ML, Create ML, Vision framework, Natural Language framework, on-device ML integration.

    117 GitHub starsUsed in 2 repos~3.8k tokens
    Auto-check: notes

  • Force Update

    gustavscirulis/snapgrid

    Generates a minimum version enforcement system with hard-block and soft-prompt update flows, App Store redirect, and remote config or App Store lookup for version checks.

    117 GitHub starsUsed in 2 repos~2.3k tokens
    Auto-check: notes

  • Market Research

    gustavscirulis/snapgrid

    Deep market analysis for iOS/macOS apps including market sizing (TAM/SAM/SOM), growth trends, market maturity, entry barriers, distribution channels, and revenue potential.

    117 GitHub starsUsed in 2 repos~3.1k tokens
    Auto-check passed

  • Account Deletion

    gustavscirulis/snapgrid

    Generates an Apple-compliant account deletion flow with multi-step confirmation UI, optional data export, configurable grace period, Keychain cleanup, and server-side deletion request.

    117 GitHub starsUsed in 1 repo~2.5k tokens
    Auto-check: notes

  • Alarmkit

    gustavscirulis/snapgrid

    AlarmKit integration for scheduling alarms and timers with custom UI, Live Activities, and snooze support.

    117 GitHub starsUsed in 1 repo~1.3k tokens
    Auto-check passed

Categories

Questions about Shared

What does Shared do?

Platform-agnostic skills including skill creation templates and best practices. Shared is an agent skill from gustavscirulis/snapgrid. Platform-agnostic skills including skill creation templates and best practices.

When should I use Shared?

Shared fits situations like: creating new skills; improving existing ones.

How do I install Shared in Claude Code?

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

How do I install Shared in Codex?

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

Can I use Shared 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 shared -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/shared, .gemini/skills/shared, .github/skills/shared and .opencode/skills/shared in your project.

What does Shared need to run?

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

Does Shared access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Shared safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Shared use?

Shared 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 Shared use?

About 380 tokens (SKILL.md is roughly 1.5k 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 Shared?

Skills that share tags, products or a category with Shared: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 296k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Shared?

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.