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Agent skill

Remote Desktop Testing Linux

by letta-ai in letta-ai/skills

Test any GUI app or change on a Daytona Linux (Ubuntu xfce4 + noVNC) remote desktop sandbox.

Custom licenceAuto-check: notes

Install Remote Desktop Testing Linux

skills CLI
$ npx skills add letta-ai/skills --skill remote-desktop-testing-linux -a claude-code

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

GitHub CLI
$ gh skill install letta-ai/skills remote-desktop-testing-linux --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/letta-ai/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/tools/remote-desktop-testing-linux .claude/skills/remote-desktop-testing-linux && 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
remote-desktop-testing-linux
GitHub stars
147
Token cost
~1.4k tokens
SKILL.md length
572 words
Files
2 (incl. scripts)
Skills in repo
22
Repo updated
First seen
Licence
Custom licence

At a glance

Test any GUI app or change on a Daytona Linux (Ubuntu xfce4 + noVNC) remote desktop sandbox.

  • Launch a GUI program
  • SKILL.md covers Overview, When to Use, Usage and Typical flow, plus 3 more sections
  • Runs JavaScript scripts from its folder; calls node and npm; needs DAYTONA_API_KEY
  • Sync a local project

What it does

Remote Desktop Testing Linux is an agent skill from letta-ai/skills. Test any GUI app or change on a Daytona Linux (Ubuntu xfce4 + noVNC) remote desktop sandbox. Use to launch a GUI program, sync a local project, take a screenshot, record a video, or share a clickable live-desktop link with a teammate. Generic — the only dependency is Daytona. For Windows, use remote-desktop-testing-windows.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts.

It works with Linux and Letta. The repository describes itself as: A shared repository for skills. Intended to be used with Letta Code, Claude Code, Codex CLI, and other agents that support skills.

When your agent uses it

  • Launch a GUI program
  • Sync a local project
  • Take a screenshot
  • Share a clickable live-desktop link with a teammate

Example prompts

  • “/remote-desktop-testing-linux”

Requirements

  • Node.js
  • A credential in DAYTONA_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit 6785511. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (JavaScript), which the agent can run.

    Shell commands in SKILL.md call:

    • node
    • npm

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

  • Network

    No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • DAYTONA_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Remote Desktop Testing Linux loads about 1.4k tokens when it runs. Until then it costs about 89 tokens; SKILL.md has 572 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~89
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

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.

  • NoteMentions a .env fileSKILL.md:31
    environment or a dotenv file — `./.env` by default, override with `--env-path <file>`.

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); the scripts in this folder 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 572 words (~1,437 tokens).

“Generic Daytona Linux desktop sandbox driver. It creates (or reuses) a sandbox running an xfce4 desktop streamed over noVNC, and provides the primitives for visual testing of any GUI app: sync code, run shell commands, launch GUI programs on the…”

— opening of SKILL.md by letta-ai, Custom licence
name
remote-desktop-testing-linux

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (scripts) in tools/remote-desktop-testing-linux of letta-ai/skills.

  • SKILL.md
  • scripts/remote-desktop.mjs

Open the folder on GitHubat commit 6785511

Compare with similar skills

Remote Desktop Testing Linux 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.

Remote Desktop Testing Linux compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Remote Desktop Testing Linux this skillletta-ai/skills147—~1.4kAutomated safety check: NotesCustom licence
Configuring Horizoncoollabsio/coolify63k4 repos~898Automated safety check: PassMIT
Engine Whats Newflutter/flutter179k—~978Automated safety check: PassBSD-3-Clause
Openclaw Live Updateropenclaw/openclaw392k—~3.7kAutomated safety check: PassMIT
Upgrade Browserflutter/flutter179k—~1.1kAutomated safety check: PassBSD-3-Clause
K8s Security PoliciesCybereason-Public/owLSM28012 repos~2kAutomated safety check: PassGPL-2.0

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Works with

Questions about Remote Desktop Testing Linux

What does Remote Desktop Testing Linux do?

Test any GUI app or change on a Daytona Linux (Ubuntu xfce4 + noVNC) remote desktop sandbox. Remote Desktop Testing Linux is an agent skill from letta-ai/skills. Test any GUI app or change on a Daytona Linux (Ubuntu xfce4 + noVNC) remote desktop sandbox.

When should I use Remote Desktop Testing Linux?

Remote Desktop Testing Linux fits situations like: launch a GUI program; sync a local project; take a screenshot; share a clickable live-desktop link with a teammate.

How do I install Remote Desktop Testing Linux in Claude Code?

Run `npx skills add letta-ai/skills --skill remote-desktop-testing-linux -a claude-code`. Or copy the skill folder (tools/remote-desktop-testing-linux in letta-ai/skills) into .claude/skills/remote-desktop-testing-linux in your project. Claude Code loads it when a task matches its description.

How do I install Remote Desktop Testing Linux in Codex?

Run `npx skills add letta-ai/skills --skill remote-desktop-testing-linux -a codex`. Or copy the skill folder (tools/remote-desktop-testing-linux in letta-ai/skills) into .agents/skills/remote-desktop-testing-linux in your project. Codex loads it when a task matches its description.

Can I use Remote Desktop Testing Linux 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 letta-ai/skills --skill remote-desktop-testing-linux -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/remote-desktop-testing-linux, .gemini/skills/remote-desktop-testing-linux, .github/skills/remote-desktop-testing-linux and .opencode/skills/remote-desktop-testing-linux in your project.

What does Remote Desktop Testing Linux need to run?

Going by SKILL.md and its folder, Remote Desktop Testing Linux needs JavaScript for the scripts in its folder, the command-line tools its instructions call (node and npm) and credentials named DAYTONA_API_KEY. Our summary lists: Node.js; A credential in DAYTONA_API_KEY.

Does Remote Desktop Testing Linux access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Remote Desktop Testing Linux safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Remote Desktop Testing Linux use?

Remote Desktop Testing Linux 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 Remote Desktop Testing Linux use?

About 1.4k tokens (SKILL.md is roughly 5.7k 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 Remote Desktop Testing Linux?

Skills that share tags, products or a category with Remote Desktop Testing Linux: Configuring Horizon (coollabsio/coolify, 63k stars), Engine Whats New (flutter/flutter, 179k stars), Openclaw Live Updater (openclaw/openclaw, 392k stars) and Upgrade Browser (flutter/flutter, 179k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Remote Desktop Testing Linux?

letta-ai (a GitHub organization) maintains it in letta-ai/skills, which has 147 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on October 1, 2026.

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