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.
Designs modular high-level architectures from functional requirements and produces design documents for each module.
Install Design
$ npx skills add vladikk/modularity --skill design -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install vladikk/modularity design --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/vladikk/modularity.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/design .claude/skills/design && 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 "design" agent skill from https://github.com/vladikk/modularity/tree/main/skills/design into .claude/skills/design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design", 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/vladikk/modularity/tree/main/skills/designType 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 vladikk/modularity --skill design -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install vladikk/modularity design --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vladikk/modularity.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/design .agents/skills/design && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "design" agent skill from https://github.com/vladikk/modularity/tree/main/skills/design into .agents/skills/design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design", 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 vladikk/modularity --skill design -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install vladikk/modularity design --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vladikk/modularity.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/design .cursor/skills/design && 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 "design" agent skill from https://github.com/vladikk/modularity/tree/main/skills/design into .cursor/skills/design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design", 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/vladikk/modularity.git --path skills/design--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 vladikk/modularity --skill design -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install vladikk/modularity design --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vladikk/modularity.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/design .gemini/skills/design && 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 "design" agent skill from https://github.com/vladikk/modularity/tree/main/skills/design into .gemini/skills/design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design", 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 vladikk/modularity designInstalls 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 vladikk/modularity --skill design -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/vladikk/modularity.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/design .github/skills/design && 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 "design" agent skill from https://github.com/vladikk/modularity/tree/main/skills/design into .github/skills/design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design", 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 vladikk/modularity --skill design -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install vladikk/modularity design --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vladikk/modularity.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/design .opencode/skills/design && 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 "design" agent skill from https://github.com/vladikk/modularity/tree/main/skills/design into .opencode/skills/design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design", 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
design- GitHub stars
- 551
- Token cost
- ~3.8k tokens
- SKILL.md length
- 1,337 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Designs modular high-level architectures from functional requirements and produces design documents for each module.
- Works in 6 steps: Understand the Requirements → Design the Modular Architecture → Write Module Design Documents → …
- Designing a new system
- SKILL.md covers Input, Interaction Rules, Process and Important Constraints
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Design is an agent skill from vladikk/modularity. Designs modular high-level architectures from functional requirements and produces design documents for each module. Use when designing a new system, creating architecture documentation, or producing module-level design specs with integration contracts and test specifications.
Its SKILL.md is about 3.8k 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. The repository describes itself as: Claude Code plugin for designing modular systems from functional requirements and reviewing existing codebases for modularity problems with actionable improvement…
When your agent uses it
- Designing a new system
- Creating architecture documentation
- Producing module-level design specs with integration contracts and test specifications
Example prompts
- “Use the design skill to design modular high-level architectures from functional requirements and produces design documents for each module”
- “/design”
Requirements
- Pre-approved tools (allowed-tools): Read, Write, Edit, AskUserQuestion, TaskCreate, TaskUpdate
Workflow steps
6 steps, taken from the step headings in SKILL.md.
- Understand the Requirements
- Design the Modular Architecture
- Write Module Design Documents
- Write Module Test Specifications
- Write the Architecture Document
- Modularity Review
What it can do on your machine
Read from SKILL.md and the folder at commit bcdca9a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditAskUserQuestionTaskCreateTaskUpdate
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
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
Design loads about 3.8k tokens when it runs. Until then it costs about 71 tokens; SKILL.md has 1,337 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 1,337 words (~3,776 tokens).
“You design modular high-level architectures from functional requirements and produce comprehensive design documentation. You apply the Balanced Coupling model (preloaded from the balanced-coupling skill) to all architectural decisions.”
- name
- design
- allowed-tools
- Read, Write, Edit, AskUserQuestion, TaskCreate, TaskUpdate
- argument-hint
- [path/to/functional-requirements.md]
- skills
- balanced-coupling
Files
Just SKILL.md in skills/design of vladikk/modularity.
Open the folder on GitHubat commit bcdca9a
Compare with similar skills
Design 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 |
|---|---|---|---|---|---|---|
| Design this skillvladikk/modularity | 551 | — | ~3.8k | Automated safety check: Pass | Custom licence | |
| Design Change PropagationDonchitos/Claude-Code-Game-Studios | 26k | — | ~3.6k | Automated safety check: Notes | MIT | |
| Extraction TimingThibautBaissac/rails_ai_agents | 665 | — | ~1.2k | Automated safety check: Pass | MIT | |
| Gm FinalizeRandallLiuXin/GodotMaker | 549 | — | ~3.7k | Automated safety check: Pass | Custom licence | |
| 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 |
Similar skills
Extraction Timing
ThibautBaissac/rails_ai_agents
Guides decisions about when and how to extract code into services, queries, concerns, form objects, or other patterns.
Gm Finalize
RandallLiuXin/GodotMaker
Seal the current tag: snapshot the per-tag working docs into docs/tags/<Tag/, write a CHANGELOG entry, run git tag, and reset per-tag runtime state for the next /gm-gdd round.
Threejs Gameplay Systems
valkor-ai/loom
Build and iterate playable Three.js game systems: starter scaffold, architecture, design briefs, core loops, level and encounter design, entities, input, camera, collision and physics, scoring…
Godot Gdscript Patterns
925236118/AlphaAgent
Master Godot 4 GDScript patterns including signals, scenes, state machines, and optimization.
Threejs Gameplay Systems
corosolto/client
Build and iterate playable Three.js game systems. An agent skill from corosolto/client.
More from vladikk/modularity
Document
vladikk/modularity
Produces modularity review documents in both Markdown and HTML formats.
Review
vladikk/modularity
Analyzes a codebase's modularity imbalances using the Balanced Coupling model and produces a review of design issues.
Balanced Coupling
vladikk/modularity
The Balanced Coupling model for software design. An agent skill from vladikk/modularity.
Related
Categories
Questions about Design
What does Design do?
Designs modular high-level architectures from functional requirements and produces design documents for each module. Design is an agent skill from vladikk/modularity. Designs modular high-level architectures from functional requirements and produces design documents for each module.
When should I use Design?
Design fits situations like: designing a new system; creating architecture documentation; producing module-level design specs with integration contracts and test specifications.
How do I install Design in Claude Code?
Run `npx skills add vladikk/modularity --skill design -a claude-code`. Or copy the skill folder (skills/design in vladikk/modularity) into .claude/skills/design in your project. Claude Code loads it when a task matches its description.
How do I install Design in Codex?
Run `npx skills add vladikk/modularity --skill design -a codex`. Or copy the skill folder (skills/design in vladikk/modularity) into .agents/skills/design in your project. Codex loads it when a task matches its description.
Can I use Design 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 vladikk/modularity --skill design -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/design, .gemini/skills/design, .github/skills/design and .opencode/skills/design in your project.
What does Design need to run?
SKILL.md names no scripts, command-line tools or credentials: Design is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, AskUserQuestion, TaskCreate, TaskUpdate.
Does Design 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 Design 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 Design use?
Design 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 Design use?
About 3.8k tokens (SKILL.md is roughly 15k 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 Design?
Skills that share tags, products or a category with Design: Design Change Propagation (Donchitos/Claude-Code-Game-Studios, 26k stars), Extraction Timing (ThibautBaissac/rails_ai_agents, 665 stars), Gm Finalize (RandallLiuXin/GodotMaker, 549 stars) and Threejs Gameplay Systems (valkor-ai/loom, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Design?
vladikk (a GitHub user) maintains it in vladikk/modularity, which has 551 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on August 31, 2026.
Source: vladikk/modularity on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.