Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add kumaran-is/claude-code-onboarding --skill ddd-architectgit clone --depth 1 https://github.com/kumaran-is/claude-code-onboardingWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/kumaran-is/claude-code-onboarding/ddd-architect)<a href="https://agentmods.dev/skills/kumaran-is/claude-code-onboarding/ddd-architect"><img src="https://agentmods.dev/badge/skills/kumaran-is/claude-code-onboarding/ddd-architect/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/kumaran-is/claude-code-onboarding/ddd-architect"><img src="https://agentmods.dev/badge/skills/kumaran-is/claude-code-onboarding/ddd-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00073 | $0.01231 |
| Opus 5 | $0.00036 | $0.00616 |
| Sonnet 5 | $0.00015 | $0.00246 |
| Haiku 4.5 | $0.00007 | $0.00123 |
Grade A, and why
ddd-architect scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Iron Law: Never design domain boundaries without analyzing existing bounded contexts first; always map ubiquitous language before proposing aggregates.
DDD Architect Skill
Generate comprehensive Domain-Driven Design architecture documentation following industry standards. Tech-stack agnostic — works with any language, framework, or cloud platform.
How This Skill Works
This skill uses progressive disclosure. Read the reference files as needed:
| Phase | Reference File | When to Load |
|---|---|---|
| Strategic Design | reference/strategic-design.md |
Always — start here |
| Tactical Design | reference/tactical-design.md |
After strategic phase |
| Technical Architecture | reference/technical-architecture.md |
After tactical phase |
| Implementation | reference/implementation-guidelines.md |
After architecture phase |
| Output Templates | assets/templates/ |
When generating documents |
Execution Protocol
Step 0: Gather Context
Before starting, confirm you have:
- Domain description — what does the business do?
- Requirements — user stories, PRDs, or feature lists (files or description)
- Tech stack — languages, frameworks, databases, cloud platform
- Architecture style — microservices, modular monolith, or undecided
- Team structure — number of teams, ownership boundaries (if known)
- Existing system — greenfield or brownfield? Migration constraints?
If any are missing, ask before proceeding. Do NOT assume.
Step 1: Strategic Design
Read reference/strategic-design.md, then:
- Identify core, supporting, and generic subdomains
- Classify by strategic value and complexity
- Discover bounded contexts using linguistic analysis
- Define ubiquitous language per context
- Create context map with relationship patterns
- Map team ownership (Conway's Law alignment)
Output: docs/ddd/01-strategic-design.md
Step 2: Tactical Design
Read reference/tactical-design.md, then:
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 133 lines · 73 tokens per session scan A 2762029cfd9a
ddd-architect is a skill published in the GitHub repository kumaran-is/claude-code-onboarding (35 stars, last pushed 2mo ago), licensed MIT. It adds 73 tokens to every session and 1,231 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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