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Agent skill

Playground Script

by rhesis-ai in rhesis-ai/rhesis

Write an ad-hoc script under playground/ for manual testing or prototyping against the SDK.

Custom licenceAuto-check passedTesting & QA

Install Playground Script

skills CLI
$ npx skills add rhesis-ai/rhesis --skill playground-script -a claude-code

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

GitHub CLI
$ gh skill install rhesis-ai/rhesis playground-script --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/rhesis-ai/rhesis.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/playground-script .claude/skills/playground-script && 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
playground-script
GitHub stars
397
Token cost
~162 tokens
SKILL.md length
55 words
Files
1
Skills in repo
12
Repo updated
First seen
Licence
Custom licence

At a glance

Write an ad-hoc script under playground/ for manual testing or prototyping against the SDK.

  • The user asks for a playground
  • Calls uv
  • Throwaway test script

What it does

Playground Script is an agent skill from rhesis-ai/rhesis. Write an ad-hoc script under playground/ for manual testing or prototyping against the SDK. Use when the user asks for a playground or throwaway test script.

Its SKILL.md is about 160 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 Testing & QA, covering QA and bug reports and Prototyping. The repository describes itself as: The collaboration layer for AI teams: domain experts annotate and review agent behavior, engineers improve the agent from what they find.

When your agent uses it

  • The user asks for a playground
  • Throwaway test script

Example prompts

  • “/playground-script”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit 1a2c578. 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

    Shell commands in SKILL.md call:

    • uv

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

  • Network

    No URLs in SKILL.md. Its commands use uv, 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 no API keys, tokens, secrets or passwords.

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

Context cost

Playground Script loads about 162 tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 55 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~44
When it runs · the whole SKILL.md, loaded when a task matches
~162

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 passed

The automated check found no risky patterns in SKILL.md.

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 55 words (~162 tokens).

“Ad-hoc scripts for manual testing/prototyping — not part of the production codebase or automated test suite. They import from the SDK, so run them from sdk/:”

— opening of SKILL.md by rhesis-ai, Custom licence
name
playground-script

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/playground-script of rhesis-ai/rhesis.

Open the folder on GitHubat commit 1a2c578

Compare with similar skills

Playground Script 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.

Playground Script compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Playground Script this skillrhesis-ai/rhesis397—~162Automated safety check: PassCustom licence
Codex Plugin QAcode-yeongyu/oh-my-openagent70k1 repos~1.9kAutomated safety check: PassCustom licence
OpenWork Desktop CDP Driverdifferent-ai/openwork24k—~465Automated safety check: PassCustom licence
Triage IssuesClickHouse/clickhouse-java1.6k—~904Automated safety check: PassApache-2.0
Ironrdp Activex Mstsc TestingDevolutions/IronRDP3.2k—~1.3kAutomated safety check: PassApache-2.0
PlotJuggler Live VerificationPlotJuggler/PlotJuggler6.2k—~956Automated safety check: PassMPL-2.0

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  • Codex Plugin QA

    code-yeongyu/oh-my-openagent

    Tests the omo Codex plugin in an isolated CODEX_HOME with a local mock model, proving hooks fired through app-server notifications without touching ~/.codex.

    70k GitHub starsUsed in 1 repo~1.9k tokens
    Testing & QAAuto-check passed

  • OpenWork Desktop CDP Driver

    different-ai/openwork

    Drives a running OpenWork desktop window over CDP from the shell to evaluate JS, take screenshots, start sessions and send prompts for hand checks.

    24k GitHub stars~465 tokensUpdated today
    Testing & QAAuto-check passed

  • Triage Issues

    ClickHouse/clickhouse-java

    Analyzes a single GitHub issue at a time. An agent skill from ClickHouse/clickhouse-java.

    1.6k GitHub stars~904 tokensUpdated yesterday
    Testing & QAAuto-check passed

  • Ironrdp Activex Mstsc Testing

    Devolutions/IronRDP

    Test IronRDP ActiveX in the real mstsc.exe child launched by MsRdpEx, including the native credential bridge, shell behavior, resize handling, clipboard startup, and bounded UI stress.

    3.2k GitHub stars~1.3k tokensUpdated today
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  • PlotJuggler Live Verification

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  • Structured Bug Reports

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More from rhesis-ai/rhesis

All 12 skills in this repo

  • Rhesis

    rhesis-ai/rhesis

    Design, run, and analyze AI test suites on Rhesis — explore endpoints, build test foundations from a spec, create requirements and metrics, execute tests, and analyze results.

    397 GitHub stars~1.2k tokensUpdated yesterday
    Auto-check passed

  • Worktree

    rhesis-ai/rhesis

    Manage git worktrees with their own dev ports, symlinked .env files, playground, and simulations.

    397 GitHub stars~627 tokensUpdated yesterday
    Auto-check: notes

  • Update Branch

    rhesis-ai/rhesis

    Rebase a feature branch onto main and force-push it safely. An agent skill from rhesis-ai/rhesis.

    397 GitHub stars~269 tokensUpdated yesterday
    Auto-check passed

  • Docs Design Tokens

    rhesis-ai/rhesis

    Colour, font and design-token rules for the docs site — when hex is banned, when it is correct, and which surfaces ignore the theme.

    397 GitHub stars~658 tokensUpdated yesterday
    Auto-check passed

  • Backend Testing

    rhesis-ai/rhesis

    Run the backend test suite correctly — working directory, Docker requirement, single-test vs full-suite commands.

    397 GitHub stars~400 tokensUpdated yesterday
    Auto-check passed

  • Pull Request

    rhesis-ai/rhesis

    Open a pull request in this repo — branch naming, title format, and the required description sections.

    397 GitHub stars~371 tokensUpdated yesterday
    Auto-check passed

Categories

Questions about Playground Script

What does Playground Script do?

Write an ad-hoc script under playground/ for manual testing or prototyping against the SDK. Playground Script is an agent skill from rhesis-ai/rhesis. Write an ad-hoc script under playground/ for manual testing or prototyping against the SDK.

When should I use Playground Script?

Playground Script fits situations like: the user asks for a playground; throwaway test script.

How do I install Playground Script in Claude Code?

Run `npx skills add rhesis-ai/rhesis --skill playground-script -a claude-code`. Or copy the skill folder (.agents/skills/playground-script in rhesis-ai/rhesis) into .claude/skills/playground-script in your project. Claude Code loads it when a task matches its description.

How do I install Playground Script in Codex?

Run `npx skills add rhesis-ai/rhesis --skill playground-script -a codex`. Or copy the skill folder (.agents/skills/playground-script in rhesis-ai/rhesis) into .agents/skills/playground-script in your project. Codex loads it when a task matches its description.

Can I use Playground Script 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 rhesis-ai/rhesis --skill playground-script -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/playground-script, .gemini/skills/playground-script, .github/skills/playground-script and .opencode/skills/playground-script in your project.

What does Playground Script need to run?

Going by SKILL.md and its folder, Playground Script needs the command-line tools its instructions call (uv). Our summary lists: Python 3.

Does Playground Script access the network?

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

Is Playground Script safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Playground Script use?

Playground Script 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 Playground Script use?

About 162 tokens (SKILL.md is roughly 648 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 Playground Script?

Skills that share tags, products or a category with Playground Script: Codex Plugin QA (code-yeongyu/oh-my-openagent, 70k stars), OpenWork Desktop CDP Driver (different-ai/openwork, 24k stars), Triage Issues (ClickHouse/clickhouse-java, 1.6k stars) and Ironrdp Activex Mstsc Testing (Devolutions/IronRDP, 3.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Playground Script?

rhesis-ai (a GitHub organization) maintains it in rhesis-ai/rhesis, which has 397 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 7, 2026.

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