Borrowing it
Nothing to install: this file belongs to nicepkg/vsync. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/nicepkg/vsync/main/.claude/skills/skill-downloader/SKILL.mdgit clone --depth 1 https://github.com/nicepkg/vsyncWrote 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.
[](https://agentmods.dev/skills/nicepkg/vsync/skill-downloader)<a href="https://agentmods.dev/skills/nicepkg/vsync/skill-downloader"><img src="https://agentmods.dev/badge/skills/nicepkg/vsync/skill-downloader/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.
<a href="https://agentmods.dev/skills/nicepkg/vsync/skill-downloader"><img src="https://agentmods.dev/badge/skills/nicepkg/vsync/skill-downloader.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00078 | $0.01047 |
| Opus 5.5 | $0.00031 | $0.00419 |
| Sonnet 5.5 | $0.00016 | $0.00209 |
| Haiku 4.5 | $0.00008 | $0.00105 |
Grade A, and why
skill-downloader 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 1mo 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.
This is a copy
100% identical to skill-downloader — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Downloader
Download and install Claude Code skills from multiple sources.
Supported Sources
| Source Type | Examples |
|---|---|
| GitHub Repository | https://github.com/user/repo, github.com/user/repo |
| Compressed Archive | .zip, .tar.gz, .tgz, .skill (renamed zip) |
| Direct URL | URL pointing to archive or skill folder |
Usage
Download from GitHub
python scripts/download_from_github.py <repo-url> <skill-path> --output <target-dir>
Examples:
# Official Anthropic skills
python scripts/download_from_github.py https://github.com/anthropics/skills skills/docx --output ./.claude/skills/
# Community skills (root level)
python scripts/download_from_github.py https://github.com/gked2121/claude-skills social-repurposer --output ./.claude/skills/
# Nested skill path
python scripts/download_from_github.py https://github.com/MadAppGang/claude-code skills/content-brief --output ./.claude/skills/
Download from Archive
python scripts/download_from_archive.py <url-or-path> --output <target-dir>
Examples:
# From URL
python scripts/download_from_archive.py https://example.com/skills/my-skill.zip --output ./.claude/skills/
# From local file
python scripts/download_from_archive.py ./downloads/my-skill.tar.gz --output ./.claude/skills/
# .skill files (renamed zip)
python scripts/download_from_archive.py https://skillhub.club/download/awesome-skill.skill --output ./.claude/skills/
Unified Download Command
python scripts/download_skill.py <source> --output <target-dir>
Automatically detects source type:
- GitHub URL → Uses git sparse checkout
- Archive URL/path → Downloads and extracts
- Directory path → Copies directly
Examples:
# Auto-detect GitHub
python scripts/download_skill.py https://github.com/anthropics/skills/tree/main/skills/docx --output ./.claude/skills/
# Auto-detect archive
python scripts/download_skill.py https://example.com/my-skill.zip --output ./.claude/skills/
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 124 lines · 78 tokens per session scan A aa18f0e0bce3
skill-downloader is a skill published in the GitHub repository nicepkg/vsync (61 stars, last pushed 9mo ago), licensed MIT. It adds 78 tokens to every session and 1,047 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to skill-downloader, differing in 0 lines, and is treated as a copy.
Other skills, from other repositories
todos
Use when the user asks for a shared plan, a task needs at least three substantive execution steps, or a loose TODO is pending. Without an explicit plan request, not for one-shot answers or checks, or one- to two-step work that is not already in the list.
low-code-platforms
Low-code and internal tool platforms including Retool, Supabase, Appsmith, Tooljet, n8n, and Zapier. Use when building admin panels, internal tools, workflow automations, or integrating low-code platforms with custom code.
one-on-one-prep
Deep-dive preparation for 1:1 meetings with direct reports. Surfaces recent work, wins, friction, wellbeing signals, and development goal progress, anchored in the org's performance framework, organizational values, and management best practices. Produces a prep sheet with suggested conversation topics, not a script.
priority-planner
Helps managers cut through noise and identify their highest-leverage actions for the day or week. Aggregates signals from calendar, triage, team context, and OKRs/goals. Presents a suggested focus list grouped by urgency, importance, and investment. The manager reviews and adjusts. Supports effective execution and…
meeting-prep
Comprehensive pre-meeting briefing that gathers all relevant context from Slack, email, Google Docs, Notion, and calendar. Produces a structured prep document so the manager walks into every meeting fully prepared. Supports thorough meeting preparation.
triage-messages
Batch-processes Slack messages and emails to surface what needs the manager's attention, categorised by urgency and type. Designed for batch-responder managers who do Slack sweeps rather than staying in reactive mode. Supports effective communication and responsiveness. Never drafts replies, only surfaces and…