Agent skill

Milestone Celebration

by gustavscirulis in gustavscirulis/snapgrid

Generates achievement celebration UI with confetti animations, badge unlocks, progress milestones, haptic feedback, and optional share-to-social.

Custom licenceAuto-check: notesProduct & Project Management

Install Milestone Celebration

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

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

GitHub CLI
$ gh skill install gustavscirulis/snapgrid milestone-celebration --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/generators/milestone-celebration .claude/skills/milestone-celebration && 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
milestone-celebration
GitHub stars
116
Used in
1 other repo
Token cost
~3.1k tokens
SKILL.md length
920 words
Files
2
Skills in repo
118
Repo updated
First seen
Licence
Custom licence

At a glance

Generates achievement celebration UI with confetti animations, badge unlocks, progress milestones, haptic feedback, and optional share-to-social.

  • Works in 8 steps: Project Context Detection → Conflict Detection → Platform Detection → …
  • User wants to celebrate achievements
  • SKILL.md covers When This Skill Activates, Pre-Generation Checks, Configuration Questions and Generation Process, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Milestone Celebration is an agent skill from gustavscirulis/snapgrid. Generates achievement celebration UI with confetti animations, badge unlocks, progress milestones, haptic feedback, and optional share-to-social. Use when user wants to celebrate achievements, show confetti, display milestone badges, or trigger rewards on key thresholds.

Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `templates.md`).

It sits in Product & Project Management, covering Project management. It works with iOS. 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

  • User wants to celebrate achievements
  • Display milestone badges
  • Trigger rewards on key thresholds

Example prompts

  • “Use the milestone-celebration skill to generate achievement celebration UI with confetti animations, badge unlocks, progress milestones, haptic…”
  • “/milestone-celebration”

Requirements

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

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. Project Context Detection
  2. Conflict Detection
  3. Platform Detection
  4. Read Templates
  5. Create Core Files
  6. Create UI Files
  7. Create Optional Files
  8. Determine File Location

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
    • Edit
    • Glob
    • Grep
    • Bash
    • AskUserQuestion

    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

    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

Milestone Celebration loads about 3.1k tokens when it runs. Until then it costs about 73 tokens; SKILL.md has 920 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~73
When it runs · the whole SKILL.md, loaded when a task matches
~3.1k

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, Edit, Glob, Grep, Bash, AskUserQuestion

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 920 words (~3,066 tokens).

“Generate a production milestone celebration system with confetti particle animations via CAEmitterLayer, achievement badge views with locked/unlocked states, a celebration overlay with spring animations, haptic feedback, and optional shareable achievement cards — all triggered automatically when users hit key thresholds.”

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

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in .claude/skills/skills/generators/milestone-celebration of gustavscirulis/snapgrid.

  • SKILL.md
  • templates.md

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

Milestone Celebration 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.

Milestone Celebration compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Milestone Celebration this skillgustavscirulis/snapgrid1161 repos~3.1kAutomated safety check: NotesCustom licence
CCPM Project Managementautomazeio/ccpm8.4k—~1.1kAutomated safety check: PassMIT
Uvastral-sh/claude-code-plugins3132 repos~980Automated safety check: PassApache-2.0
Project Managementkunchenguid/firstmate7.8k—~2.1kAutomated safety check: PassMIT
Hivemind Goalsactiveloopai/hivemind1.6k—~1.7kAutomated safety check: NotesApache-2.0
Ichartjswanghetommy/ichartjs352—~4.3kAutomated safety check: PassApache-2.0

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Works with

Questions about Milestone Celebration

What does Milestone Celebration do?

Generates achievement celebration UI with confetti animations, badge unlocks, progress milestones, haptic feedback, and optional share-to-social. Milestone Celebration is an agent skill from gustavscirulis/snapgrid. Generates achievement celebration UI with confetti animations, badge unlocks, progress milestones, haptic feedback, and optional share-to-social.

When should I use Milestone Celebration?

Milestone Celebration fits situations like: user wants to celebrate achievements; display milestone badges; trigger rewards on key thresholds.

How do I install Milestone Celebration in Claude Code?

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

How do I install Milestone Celebration in Codex?

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

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

What does Milestone Celebration need to run?

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

Does Milestone Celebration 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 Milestone Celebration 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 Milestone Celebration use?

Milestone Celebration 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 Milestone Celebration use?

About 3.1k tokens (SKILL.md is roughly 12k 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 Milestone Celebration?

Skills that share tags, products or a category with Milestone Celebration: CCPM Project Management (automazeio/ccpm, 8.4k stars), Uv (astral-sh/claude-code-plugins, 313 stars), Project Management (kunchenguid/firstmate, 7.8k stars) and Hivemind Goals (activeloopai/hivemind, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Milestone Celebration?

gustavscirulis (a GitHub user) maintains it in gustavscirulis/snapgrid, which has 116 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.