Wondel.ai Agent Skills is a collection of skills and guided workflows that give coding agents structured methods for business, marketing, UX, website, app, and software-development tasks. It is used with agents such as Claude Code, Codex, Cursor, OpenClaw, and other agents that support the agentskills.io format. The catalogue entries are the project's skills, plugins, instructions, and rule packaged for those agents.
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 wondelai/skills --skill design-code-architecturegit clone --depth 1 https://github.com/wondelai/skillsWrote 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/wondelai/skills/design-code-architecture)<a href="https://agentmods.dev/skills/wondelai/skills/design-code-architecture"><img src="https://agentmods.dev/badge/skills/wondelai/skills/design-code-architecture.svg" alt="Measured on agentmods" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 36 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00220 | $0.05771 |
| Opus 5 | $0.00110 | $0.02885 |
| Sonnet 5 | $0.00044 | $0.01154 |
| Haiku 4.5 | $0.00022 | $0.00577 |
Grade A, and why
design-code-architecture 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 8d 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 — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Code Architecture
Design the architecture for a new app: get the small number of expensive-to-reverse decisions right and stay aggressively simple everywhere else. This is an interactive, resumable journey of eight phases — the agent asks before every decision and records the outcome in your project's docs/ folder, so you can stop after any phase and resume later. It runs from the most foundational and hardest-to-reverse (boundaries, domain) through the tunable (data, resilience) to the cross-cutting disciplines (complexity, reversibility, scope) you apply throughout. A weekend project uses three phases lightly; a funded team building toward launch wants the whole stack.
Core Principle
Architecture is the set of decisions that are expensive to reverse: make exactly those deliberately, and defer everything cheap. This skill sequences the phases, asks the decision questions, and records every choice in docs/. The constituent skills carry the method — invoke them rather than improvising their frameworks. The whole strategy is to convert expensive decisions into cheap ones by putting a boundary in front of them, so the irreducibly expensive set stays small enough to get right with care.
Journey Map
| Phase | Skill | Question it answers | Artifact |
|---|---|---|---|
| 1 | clean-architecture | Do source-code dependencies point inward — is the core testable with no DB, web, or framework? | Creates docs/ARCHITECTURE.md |
| 2 | domain-driven-design | Where does the business actually split, and what does each term mean? | Extends docs/ARCHITECTURE.md |
| 3 | system-design | How little system does our real load actually need? | Extends docs/ARCHITECTURE.md |
| 4 | ddia-systems | Which data model, storage engine, and consistency does each workload need? | Extends docs/ARCHITECTURE.md |
| 5 | software-design-philosophy | Is complexity hidden behind deep modules, or is this classitis? | Extends docs/TECH-DEBT.md |
| 6 | release-it | Will it degrade gracefully when a dependency is slow or down? | Creates docs/RELIABILITY.md |
| 7 | pragmatic-programmer | What thin slice proves the boundaries, and what habits keep them reversible? | Extends docs/TESTING.md + docs/TECH-DEBT.md |
| 8 | 37signals-way | What is essential for v1, and what speculative abstraction do we cut? | Extends docs/ARCHITECTURE.md + docs/TECH-DEBT.md |
What ships with it
1 file 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.
- 8d ago First seen · 208 lines · 220 tokens per session scan A 4bf2140050ca
design-code-architecture is a skill published in the GitHub repository wondelai/skills (2,124 stars, last pushed 9d ago), licensed MIT. It adds 220 tokens to every session and 5,771 once invoked, about $0.0011 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 2026-08-30.
Other skills, from other repositories
architect
This skill should be used when the user asks to "design system architecture", "evaluate microservices vs monolith", "create architecture diagrams", "analyze dependencies", "choose a database", "plan for scalability", "make technical decisions", or "review system design".
backend
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validate-api
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backend-architecture
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validate-ws
Run a bounded, protocol-aware WebSocket probe with an OIDC bearer token.