# Design Implementation

> |

- **Type:** Skill
- **Install:** `agentstack add skill-wfukatsu-nexus-architect-design-implementation`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [wfukatsu](https://agentstack.voostack.com/s/wfukatsu)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [wfukatsu](https://github.com/wfukatsu)
- **Source:** https://github.com/wfukatsu/nexus-architect/tree/main/skills/design-implementation

## Install

```sh
agentstack add skill-wfukatsu-nexus-architect-design-implementation
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Implementation Design

## Desired Outcome

Generate detailed, coding-ready implementation specifications from design documents:
- Method signatures and responsibility definitions for domain services
- Repository interface specifications (CRUD + custom queries)
- Value object definitions and invariant conditions
- Exception hierarchy and external exception mapping
- Interface contracts for inter-service communication

## Acceptance Criteria

- All entities and aggregates in the design documents are covered
- Interfaces are described at an abstraction level independent of implementation technology
- When using ScalarDB, comply with @rules/scalardb-coding-patterns.md

## Prerequisites

| File | Required/Recommended | Source |
|------|---------------------|--------|
| reports/03_design/ | Required | design-* skill group |
| reports/02_evaluation/ | Recommended | integrate-evaluations |

## Output

Write all reports in the language configured in `work/pipeline-progress.json` (`options.output_language`).

| File | Content |
|------|---------|
| `reports/06_implementation/domain-services-spec.md` | Service specifications |
| `reports/06_implementation/repository-interfaces-spec.md` | Repository specifications |
| `reports/06_implementation/value-objects-spec.md` | Value object definitions |
| `reports/06_implementation/exception-mapping-spec.md` | Exception mapping |

## Related Skills

| Skill | Relationship |
|-------|-------------|
| /architect:design-microservices | Input source |
| /architect:design-scalardb | Input source |
| /architect:generate-test-specs | Output consumer |
| /architect:generate-scalardb-code | Output consumer |

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [wfukatsu](https://github.com/wfukatsu)
- **Source:** [wfukatsu/nexus-architect](https://github.com/wfukatsu/nexus-architect)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-wfukatsu-nexus-architect-design-implementation
- Seller: https://agentstack.voostack.com/s/wfukatsu
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.