Archive zst as zst

Download and install the latest version of Filestar.
Right click on one or more Zst file(s) on your desktop and select Convert with Filestar.
Type archive as zst in the search box.
Press Run.

Or let an AI agent do it: filestarcli -i file.zst -c "archive as zst" (how).

Let your AI agent archive ZST as zst

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Or add it in one click:

Claude Code:

claude mcp add filestar -- npx -y [email protected] mcp

Then ask your agent:

“Use Filestar to archive ZST as zst in my Downloads folder”

Or run it yourself:

filestarcli -i file.zst -c "archive as zst"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent archive ZST as zst?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.zst -c "archive as zst" on your computer, so your files stay on it.

Using Filestar With AI Agents · Download SKILL.md

What is .zst?

Name: Zstandard
Extension: .zst
Format: Binary
Category: Compressed
Developer: Facebook
Description: Zstandard is a fast compression algorithm, providing high compression ratios. It also offers a special mode for small data, called dictionary compression. The reference library offers a very wide range of speed / compression trade-off, and is backed by an extremely fast decoder (see benchmarks below). Zstandard library is provided as open source software using a BSD license. Its format is stable and published as IETF RFC 8478.
MIME Type: application/zstd
Wikipedia: .zst on Wikipedia

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