Evolutionary Modular Architecture
tech-leads-club/agent-skills
Guides design of modular-monolith platforms with DDD, flat-by-aggregate modules, anti-corruption layers, outbox events and resilience, plus an architecture document with SVG diagrams.
Assess DDD fit; discover domains with EventStorming, define language and bounded contexts, and design aggregates, value objects, events, and repositories.
Install Ddd Master
$ npx skills add pedronauck/skills --skill ddd-master -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install pedronauck/skills ddd-master --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/pedronauck/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/mine/ddd-master .claude/skills/ddd-master && 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 "ddd-master" agent skill from https://github.com/pedronauck/skills/tree/main/skills/mine/ddd-master into .claude/skills/ddd-master/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ddd-master", 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/pedronauck/skills/tree/main/skills/mine/ddd-masterType 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 pedronauck/skills --skill ddd-master -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install pedronauck/skills ddd-master --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/mine/ddd-master .agents/skills/ddd-master && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ddd-master" agent skill from https://github.com/pedronauck/skills/tree/main/skills/mine/ddd-master into .agents/skills/ddd-master/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ddd-master", 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 pedronauck/skills --skill ddd-master -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install pedronauck/skills ddd-master --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/mine/ddd-master .cursor/skills/ddd-master && 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 "ddd-master" agent skill from https://github.com/pedronauck/skills/tree/main/skills/mine/ddd-master into .cursor/skills/ddd-master/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ddd-master", 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/pedronauck/skills.git --path skills/mine/ddd-master--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 pedronauck/skills --skill ddd-master -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install pedronauck/skills ddd-master --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/mine/ddd-master .gemini/skills/ddd-master && 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 "ddd-master" agent skill from https://github.com/pedronauck/skills/tree/main/skills/mine/ddd-master into .gemini/skills/ddd-master/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ddd-master", 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 pedronauck/skills ddd-masterInstalls 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 pedronauck/skills --skill ddd-master -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/mine/ddd-master .github/skills/ddd-master && 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 "ddd-master" agent skill from https://github.com/pedronauck/skills/tree/main/skills/mine/ddd-master into .github/skills/ddd-master/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ddd-master", 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 pedronauck/skills --skill ddd-master -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install pedronauck/skills ddd-master --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/mine/ddd-master .opencode/skills/ddd-master && 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 "ddd-master" agent skill from https://github.com/pedronauck/skills/tree/main/skills/mine/ddd-master into .opencode/skills/ddd-master/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ddd-master", 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
ddd-master- GitHub stars
- 634
- Token cost
- ~2.5k tokens
- SKILL.md length
- 1,392 words
- Files
- 7 (incl. references)
- Skills in repo
- 65
- Repo updated
- First seen
- Licence
- None found
At a glance
Assess DDD fit; discover domains with EventStorming, define language and bounded contexts, and design aggregates, value objects, events, and repositories.
- Works in 4 steps: Verdict → Grasp the domain → Strategic design → …
- Tasks that involve Domain-driven design
- SKILL.md covers Bundled Path Rule, Branches, Floor and Step 1: Verdict, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Ddd Master is an agent skill from pedronauck/skills. Assess DDD fit; discover domains with EventStorming, define language and bounded contexts, and design aggregates, value objects, events, and repositories. Excludes architecture-only audits, product specs, and CQRS/Event Sourcing catalogs.
Its SKILL.md is about 2.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `references/discovery.md`, `references/pitfalls.md` and `references/practitioner.md`).
It sits in Development, covering Domain-driven design and Event-driven systems. The repository describes itself as: My personal favorite skills.
When your agent uses it
- Tasks that involve Domain-driven design
- Tasks that involve Event-driven systems
Example prompts
- “/ddd-master”
Workflow steps
4 steps, taken from the step headings in SKILL.md.
- Verdict
- Grasp the domain
- Strategic design
- Design one aggregate
What it can do on your machine
Read from SKILL.md and the folder at commit 0422940. 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
No scripts in the folder and no shell commands in SKILL.md.
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
Ddd Master loads about 2.5k tokens when it runs, and up to ~11k if it reads all its reference files. Until then it costs about 62 tokens; SKILL.md has 1,392 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,392 words (~2,550 tokens).
“Define or revise a domain model from its language, boundaries, and invariants. Assess DDD fit before scaffolding a new model; reuse accepted decisions for established models.”
- name
- ddd-master
- metadata.author
- Pedro Nauck
- metadata.github
- https://github.com/pedronauck
- metadata.repository
- https://github.com/pedronauck/skills
Files
SKILL.md and 6 other files (references) in skills/mine/ddd-master of pedronauck/skills.
- SKILL.md
- references/discovery.md
- references/pitfalls.md
- references/practitioner.md
- references/strategic.md
- references/tactical.md
- references/when-not.md
Open the folder on GitHubat commit 0422940
Compare with similar skills
Ddd Master 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 |
|---|---|---|---|---|---|---|
| Ddd Master this skillpedronauck/skills | 634 | — | ~2.5k | Automated safety check: Pass | None | |
| Evolutionary Modular Architecturetech-leads-club/agent-skills | 7k | — | ~3.7k | Automated safety check: Pass | CC-BY-4.0 | |
| Migration PathAxonIQ/AxonFramework | 3.6k | — | ~594 | Automated safety check: Pass | Apache-2.0 | |
| Clean Architecture DotnetSebastienDegodez/copilot-instructions | 198 | — | ~5.1k | Automated safety check: Pass | Apache-2.0 | |
| Architect ReviewAratKruglik/claude-laravel | 155 | 8 repos | ~2.2k | Automated safety check: Pass | None | |
| Dotnet Copfmflurry/settings-opencode | 171 | — | ~2k | Automated safety check: Pass | MIT |
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A skill your agent uses when domain logic leaks into API/Infrastructure, project references violate layer boundaries, or you need to decide between CQS (always), CQRS bus (complex domains), and DDD…
Architect Review
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Master software architect specializing in modern architecture patterns, clean architecture, microservices, event-driven systems, and DDD.
Dotnet Cop
fmflurry/settings-opencode
Pre-merge code review for .NET 10 pull requests. An agent skill from fmflurry/settings-opencode.
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Design or review .NET solution architecture across modular monoliths, clean architecture, vertical slices, microservices, DDD, CQRS, and cloud-native boundaries without over-engineering.
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Related
Categories
Questions about Ddd Master
What does Ddd Master do?
Assess DDD fit; discover domains with EventStorming, define language and bounded contexts, and design aggregates, value objects, events, and repositories. Ddd Master is an agent skill from pedronauck/skills. Assess DDD fit; discover domains with EventStorming, define language and bounded contexts, and design aggregates, value objects, events, and repositories.
When should I use Ddd Master?
Ddd Master fits situations like: tasks that involve Domain-driven design; tasks that involve Event-driven systems.
How do I install Ddd Master in Claude Code?
Run `npx skills add pedronauck/skills --skill ddd-master -a claude-code`. Or copy the skill folder (skills/mine/ddd-master in pedronauck/skills) into .claude/skills/ddd-master in your project. Claude Code loads it when a task matches its description.
How do I install Ddd Master in Codex?
Run `npx skills add pedronauck/skills --skill ddd-master -a codex`. Or copy the skill folder (skills/mine/ddd-master in pedronauck/skills) into .agents/skills/ddd-master in your project. Codex loads it when a task matches its description.
Can I use Ddd Master 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 pedronauck/skills --skill ddd-master -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ddd-master, .gemini/skills/ddd-master, .github/skills/ddd-master and .opencode/skills/ddd-master in your project.
What does Ddd Master need to run?
SKILL.md names no scripts, command-line tools or credentials: Ddd Master is instructions for the agent only.
Does Ddd Master 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 Ddd Master 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 Ddd Master use?
No licence was found for Ddd Master or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Ddd Master use?
About 2.5k tokens (SKILL.md is roughly 10k 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 8.4k tokens, read only when the agent opens those files.
What are the alternatives to Ddd Master?
Skills that share tags, products or a category with Ddd Master: Evolutionary Modular Architecture (tech-leads-club/agent-skills, 7k stars), Migration Path (AxonIQ/AxonFramework, 3.6k stars), Clean Architecture Dotnet (SebastienDegodez/copilot-instructions, 198 stars) and Architect Review (AratKruglik/claude-laravel, 155 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ddd Master?
pedronauck (a GitHub user) maintains it in pedronauck/skills, which has 634 GitHub stars. The repository holds 65 skills in this directory. The repository was last updated on September 14, 2026.
Source: pedronauck/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.