Design Change Propagation
Donchitos/Claude-Code-Game-Studios
Finds architecture decision records made stale by a changed game design document, then reports the impact and guides you through resolving each one.
Game Design Document phase for one tag. An agent skill from RandallLiuXin/GodotMaker.
Install Gm Gdd
$ npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install RandallLiuXin/GodotMaker gm-gdd --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/RandallLiuXin/GodotMaker.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/core/gm-gdd .claude/skills/gm-gdd && rm -rf skills-srcUse ~/.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/
Install the "gm-gdd" agent skill from https://github.com/RandallLiuXin/GodotMaker/tree/main/skills/core/gm-gdd into .claude/skills/gm-gdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gm-gdd", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/RandallLiuXin/GodotMaker/tree/main/skills/core/gm-gddType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install RandallLiuXin/GodotMaker gm-gdd --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RandallLiuXin/GodotMaker.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/core/gm-gdd .agents/skills/gm-gdd && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "gm-gdd" agent skill from https://github.com/RandallLiuXin/GodotMaker/tree/main/skills/core/gm-gdd into .agents/skills/gm-gdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gm-gdd", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install RandallLiuXin/GodotMaker gm-gdd --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RandallLiuXin/GodotMaker.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/core/gm-gdd .cursor/skills/gm-gdd && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "gm-gdd" agent skill from https://github.com/RandallLiuXin/GodotMaker/tree/main/skills/core/gm-gdd into .cursor/skills/gm-gdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gm-gdd", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/RandallLiuXin/GodotMaker.git --path skills/core/gm-gdd--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install RandallLiuXin/GodotMaker gm-gdd --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RandallLiuXin/GodotMaker.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/core/gm-gdd .gemini/skills/gm-gdd && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "gm-gdd" agent skill from https://github.com/RandallLiuXin/GodotMaker/tree/main/skills/core/gm-gdd into .gemini/skills/gm-gdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gm-gdd", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install RandallLiuXin/GodotMaker gm-gddInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/RandallLiuXin/GodotMaker.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/core/gm-gdd .github/skills/gm-gdd && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "gm-gdd" agent skill from https://github.com/RandallLiuXin/GodotMaker/tree/main/skills/core/gm-gdd into .github/skills/gm-gdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gm-gdd", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install RandallLiuXin/GodotMaker gm-gdd --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RandallLiuXin/GodotMaker.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/core/gm-gdd .opencode/skills/gm-gdd && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "gm-gdd" agent skill from https://github.com/RandallLiuXin/GodotMaker/tree/main/skills/core/gm-gdd into .opencode/skills/gm-gdd/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gm-gdd", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
gm-gdd- GitHub stars
- 550
- Token cost
- ~4.7k tokens
- SKILL.md length
- 2,241 words
- Files
- 1
- Skills in repo
- 41
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Game Design Document phase for one tag. An agent skill from RandallLiuXin/GodotMaker.
- Works in 4 steps: Read ROADMAP.md, list tag entries in… → Run git tag --list 'v*' (capture stdout). → The current tag is the earliest tag in… → …
- Tasks that involve Game design
- SKILL.md covers Session Setup, Resume Check, Mode Detection and Freeform Intake, plus 4 more sections
- Calls git and python
What it does
Gm Gdd is an agent skill from RandallLiuXin/GodotMaker. Game Design Document phase for one tag. On the first ever run, runs the full Socratic interview, produces GDD.md, and derives ROADMAP.md (split into SemVer-tagged release tags). On every subsequent run, focuses the conversation on the current tag (the earliest entry in ROADMAP.md without a git tag), optionally updates GDD.md / ROADMAP.md, then generates the current tag's PLAN/STRUCTURE/SCENES/DESIGN/ASSETS at the project root. Explicit invocation only — use /gm-gdd.
Its SKILL.md is about 4.7k 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 Game Development, covering Game design. It works with Git. The repository describes itself as: Autonomous text-to-game pipeline for Godot, powered by Claude Code,Codex,Opencode.
When your agent uses it
- Tasks that involve Game design
Example prompts
- “/gm-gdd”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Read ROADMAP.md, list tag entries in declared order.
- Run git tag --list 'v*' (capture stdout).
- The current tag is the earliest tag in ROADMAP that is not in git tag --list.
- If every ROADMAP entry already has a git tag, STOP and inform the user the roadmap is exhausted — they must edit ROADMAP.md to add new…
What it can do on your machine
Read from SKILL.md and the folder at commit 1d4702c. 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:
gitpython
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git, 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
Gm Gdd loads about 4.7k tokens when it runs. Until then it costs about 119 tokens; SKILL.md has 2,241 words of instructions outside code blocks.
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 2,241 words (~4,707 tokens).
- name
- gm-gdd
- disable-model-invocation
- true
Files
Just SKILL.md in skills/core/gm-gdd of RandallLiuXin/GodotMaker.
Open the folder on GitHubat commit 1d4702c
Compare with similar skills
Gm Gdd 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Gm Gdd this skillRandallLiuXin/GodotMaker | 550 | — | ~4.7k | Automated safety check: Pass | Custom licence | |
| Design Change PropagationDonchitos/Claude-Code-Game-Studios | 26k | — | ~3.6k | Automated safety check: Notes | MIT | |
| Threejs Gameplay Systemsvalkor-ai/loom | 1.2k | 1 repos | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Godot Gdscript Patterns925236118/AlphaAgent | 103 | 10 repos | ~5k | Automated safety check: Pass | MIT | |
| Threejs Gameplay Systemscorosolto/client | 257 | — | ~1.5k | Automated safety check: Pass | AGPL-3.0 | |
| Roblox Gamebrockmartin/roblox-game-skill | 203 | — | ~1.3k | Automated safety check: Pass | None |
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Related
Works with
Categories
Questions about Gm Gdd
What does Gm Gdd do?
Game Design Document phase for one tag. An agent skill from RandallLiuXin/GodotMaker. Gm Gdd is an agent skill from RandallLiuXin/GodotMaker. Game Design Document phase for one tag.
When should I use Gm Gdd?
Gm Gdd fits situations like: tasks that involve Game design.
How do I install Gm Gdd in Claude Code?
Run `npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a claude-code`. Or copy the skill folder (skills/core/gm-gdd in RandallLiuXin/GodotMaker) into .claude/skills/gm-gdd in your project. Claude Code loads it when a task matches its description.
How do I install Gm Gdd in Codex?
Run `npx skills add RandallLiuXin/GodotMaker --skill gm-gdd -a codex`. Or copy the skill folder (skills/core/gm-gdd in RandallLiuXin/GodotMaker) into .agents/skills/gm-gdd in your project. Codex loads it when a task matches its description.
Can I use Gm Gdd 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 RandallLiuXin/GodotMaker --skill gm-gdd -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gm-gdd, .gemini/skills/gm-gdd, .github/skills/gm-gdd and .opencode/skills/gm-gdd in your project.
What does Gm Gdd need to run?
Going by SKILL.md and its folder, Gm Gdd needs the command-line tools its instructions call (git and python).
Does Gm Gdd access the network?
SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Gm Gdd 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 Gm Gdd use?
Gm Gdd 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 Gm Gdd use?
About 4.7k tokens (SKILL.md is roughly 19k 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 Gm Gdd?
Skills that share tags, products or a category with Gm Gdd: Design Change Propagation (Donchitos/Claude-Code-Game-Studios, 26k stars), Threejs Gameplay Systems (valkor-ai/loom, 1.2k stars), Godot Gdscript Patterns (925236118/AlphaAgent, 103 stars) and Threejs Gameplay Systems (corosolto/client, 257 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Gm Gdd?
RandallLiuXin (a GitHub user) maintains it in RandallLiuXin/GodotMaker, which has 550 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on September 17, 2026.
Source: RandallLiuXin/GodotMaker on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.