Agent skill

Idleon Live Cdp

by MrJoiny in MrJoiny/Idleon-Injector

Inspect and interact with a running Legends of Idleon session through the Chrome DevTools Protocol on port 32123.

No licenceAuto-check passedTesting & QA

Install Idleon Live Cdp

skills CLI
$ npx skills add MrJoiny/Idleon-Injector --skill idleon-live-cdp -a claude-code

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

GitHub CLI
$ gh skill install MrJoiny/Idleon-Injector idleon-live-cdp --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/MrJoiny/Idleon-Injector.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/idleon-live-cdp .claude/skills/idleon-live-cdp && 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
idleon-live-cdp
GitHub stars
111
Token cost
~1.2k tokens
SKILL.md length
511 words
Files
4 (incl. scripts, references)
Skills in repo
1
Repo updated
First seen
Licence
None found

At a glance

Inspect and interact with a running Legends of Idleon session through the Chrome DevTools Protocol on port 32123.

  • Works in 5 steps: Confirm the current directory is the… → Run the status command before every… → Inspect the relevant repository code… → …
  • Codex needs to read live game state such as gga.Money
  • SKILL.md covers Start safely, Read and discover, Change live state and Guardrails, plus 1 more section
  • Runs JavaScript scripts from its folder; calls node

What it does

Idleon Live Cdp is an agent skill from MrJoiny/Idleon-Injector. Inspect and interact with a running Legends of Idleon session through the Chrome DevTools Protocol on port 32123. Use when Codex needs to read live game state such as gga.Money, explore gga or Haxe .h structures, query injected Idleon helpers and definitions, diagnose the active game runtime, or make an explicitly requested and verified live-state change.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/runtime-surface.md` and `scripts/idleon-cdp.js`).

It sits in Testing & QA, covering Browser testing. It works with Chrome DevTools and JavaScript. The repository describes itself as: Node / JS injector for Idleon, allowing code injection and runtime modification.

When your agent uses it

  • Codex needs to read live game state such as gga.Money
  • Haxe .h structures
  • Query injected Idleon helpers and definitions
  • Diagnose the active game runtime

Example prompts

  • “/idleon-live-cdp”

Requirements

  • Node.js

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Confirm the current directory is the Idleon-Injector repository.
  2. Run the status command before every task. It scans page targets and selects the one where the injected gga and readGamePath globals are…
  3. Inspect the relevant repository code before relying on an unfamiliar game path. Start with src/cheats/main.js, then search src/cheats/ and…
  4. Read through the injected helper API before using raw JavaScript.
  5. Keep result sets narrow. Read one path or selected map entries instead of serializing all of gga, itemDefs, or cList.

What it can do on your machine

Read from SKILL.md and the folder at commit 2f8fa87. 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

    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

Idleon Live Cdp loads about 1.2k tokens when it runs, and up to ~3.3k if it reads all its reference files. Until then it costs about 93 tokens; SKILL.md has 511 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~93
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.3k

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); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 511 words (~1,241 tokens).

“Use the bundled bridge from the Idleon-Injector repository root. Default to read-only work. Treat every evaluated expression as code running inside the live game.”

— opening of SKILL.md by MrJoiny
name
idleon-live-cdp

Read the full SKILL.md on GitHub

Files

SKILL.md and 3 other files (scripts, references) in .agents/skills/idleon-live-cdp of MrJoiny/Idleon-Injector.

  • SKILL.md
  • agents/openai.yaml
  • references/runtime-surface.md
  • scripts/idleon-cdp.js

Open the folder on GitHubat commit 2f8fa87

Compare with similar skills

Idleon Live Cdp 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.

Idleon Live Cdp compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Idleon Live Cdp this skillMrJoiny/Idleon-Injector111—~1.2kAutomated safety check: PassNone
Chrome Devtools Axilayer5io/sistent1392 repos~989Automated safety check: PassApache-2.0
Browser Testing With Devtoolsshashankswe2020-ux/whoop-mcp165—~3kAutomated safety check: WarnMIT
Browser Tools981377660LMT/algorithm-study2771 repos~1.3kAutomated safety check: PassNone
Chrome Devtoolseinverne/dotfiles1211 repos~1.6kAutomated safety check: NotesApache-2.0
Reversing Obfuscated Javascripttrilwu/secskills157—~2.3kAutomated safety check: PassMIT

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Categories

Questions about Idleon Live Cdp

What does Idleon Live Cdp do?

Inspect and interact with a running Legends of Idleon session through the Chrome DevTools Protocol on port 32123. Idleon Live Cdp is an agent skill from MrJoiny/Idleon-Injector. Inspect and interact with a running Legends of Idleon session through the Chrome DevTools Protocol on port 32123.

When should I use Idleon Live Cdp?

Idleon Live Cdp fits situations like: Codex needs to read live game state such as gga.Money; haxe .h structures; query injected Idleon helpers and definitions; diagnose the active game runtime.

How do I install Idleon Live Cdp in Claude Code?

Run `npx skills add MrJoiny/Idleon-Injector --skill idleon-live-cdp -a claude-code`. Or copy the skill folder (.agents/skills/idleon-live-cdp in MrJoiny/Idleon-Injector) into .claude/skills/idleon-live-cdp in your project. Claude Code loads it when a task matches its description.

How do I install Idleon Live Cdp in Codex?

Run `npx skills add MrJoiny/Idleon-Injector --skill idleon-live-cdp -a codex`. Or copy the skill folder (.agents/skills/idleon-live-cdp in MrJoiny/Idleon-Injector) into .agents/skills/idleon-live-cdp in your project. Codex loads it when a task matches its description.

Can I use Idleon Live Cdp 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 MrJoiny/Idleon-Injector --skill idleon-live-cdp -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/idleon-live-cdp, .gemini/skills/idleon-live-cdp, .github/skills/idleon-live-cdp and .opencode/skills/idleon-live-cdp in your project.

What does Idleon Live Cdp need to run?

Going by SKILL.md and its folder, Idleon Live Cdp needs JavaScript for the scripts in its folder and the command-line tools its instructions call (node). Our summary lists: Node.js.

Does Idleon Live Cdp 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 Idleon Live Cdp 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Idleon Live Cdp use?

No licence was found for Idleon Live Cdp or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Idleon Live Cdp use?

About 1.2k tokens (SKILL.md is roughly 5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.1k tokens, read only when the agent opens those files.

What are the alternatives to Idleon Live Cdp?

Skills that share tags, products or a category with Idleon Live Cdp: Chrome Devtools Axi (layer5io/sistent, 139 stars), Browser Testing With Devtools (shashankswe2020-ux/whoop-mcp, 165 stars), Browser Tools (981377660LMT/algorithm-study, 277 stars) and Chrome Devtools (einverne/dotfiles, 121 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Idleon Live Cdp?

MrJoiny (a GitHub user) maintains it in MrJoiny/Idleon-Injector, which has 111 GitHub stars. The repository was last updated on October 9, 2026.

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