yujikawa avatar

yujikawa

Community

@yujikawa · Fukuoka Japan

74Followers
|
36Public Repos
|
21Published Skills

I work as an analytics engineer in Japan.

Skills Distribution
DomainData Systems...Spec-Driven Data M.. (40%)Analytics Code Gen.. (25%)Requirements & Des.. (20%)Change Lifecycle G.. (15%)

Agent Skills by yujikawa

Showing 21 vetted skills indexed across 1 GitHub repositories.

yujikawayujikawa

openspec-apply-change

Implements tasks from an OpenSpec change using the openspec CLI.

Community
Intermediate
yujikawayujikawa

openspec-explore

Explores ideas, investigates codebases, and clarifies requirements through conversational analysis.

Community
Intermediate
yujikawayujikawa

openspec-archive-change

Archives completed OpenSpec changes with artifact, task, and spec sync verification.

Community
Intermediate
yujikawayujikawa

openspec-propose

Generates complete change proposals with design, specs, and tasks via the openspec CLI.

Community
Intermediate
yujikawayujikawa

modscape-spec-note

Appends free-form knowledge notes to permanent table spec markdown files.

Community
Intermediate
yujikawayujikawa

modscape-spec-explore

Explores data model schemas and clarifies change direction before formal requirements gathering.

Community
Intermediate
yujikawayujikawa

modscape-spec-investigate

Investigate repository files and record findings in design.md.

Community
Intermediate
yujikawayujikawa

modscape-spec-status

Reports spec work folder phase, file checklist, task progress, and next recommended command.

Community
Intermediate
yujikawayujikawa

modscape-spec-tasks

Generates a phased implementation task list from a spec-model.yaml lineage graph.

Community
Intermediate
yujikawayujikawa

modscape-spec-design

Designs YAML data models from spec.md and updates work-scoped spec-model.yaml iteratively.

Community
Advanced
yujikawayujikawa

modscape-spec-generate

Generate table spec.md files from YAML, SQL, and Python implementation artifacts.

Community
Intermediate
yujikawayujikawa

modscape-spec-answer

Answers open questions in questions.md and records design impact for spec changes.

Community
Intermediate
yujikawayujikawa

modscape-modeling

Creates and maintains YAML-defined data models for Modern Data Stack visualization.

Community
Intermediate
yujikawayujikawa

modscape-spec-requirements-lite

Generates spec, design, and task documents for minor data model schema changes via the modscape CLI.

Community
Intermediate
yujikawayujikawa

modscape-codegen

Generate dbt, SQLMesh, or Spark SQL implementation code from Modscape YAML data models.

Community
Intermediate
yujikawayujikawa

modscape-spec-requirements

Gathers business requirements interactively and generates spec.md files for data pipelines.

Community
Advanced
yujikawayujikawa

modscape-spec-check

Validates specification consistency and implementation readiness against a chosen SSOT artifact.

Community
Intermediate
yujikawayujikawa

modscape-spec-archive

Merge work-scoped YAML into the main model and archive completed data specs.

Community
Advanced
yujikawayujikawa

modscape-spec-search

Search past spec archives by keyword and display relevant findings for reuse.

Community
Intermediate
yujikawayujikawa

modscape-spec-help

Displays the SDD workflow overview and answers questions about spec-driven development commands.

Community
Basic
yujikawayujikawa

modscape-spec-implement

Implements pending data modeling tasks from spec task lists into dbt or SQL code.

Community
Advanced

Frequently Asked Questions About yujikawa

FAQPage Schema
What tasks can I accomplish with yujikawa's Modscape skills?▼

You can run the full spec-driven development cycle for data models: gather requirements, investigate repositories, design models in YAML, run pre-implementation quality checks, generate task lists, implement tasks, and generate dbt, SQLMesh, or Spark SQL code, then archive completed changes.

Who are these skills designed for?▼

Analytics engineers and data engineers managing schema changes and data models. The author is a practicing analytics engineer in Japan, and the skills target teams maintaining table specs, model.yaml definitions, and transformation code across dbt, SQLMesh, or Spark SQL projects.

How do I handle a minor schema change like adding a column?▼

Use modscape-spec-requirements-lite, the lightweight SDD entry point for minor changes such as column additions, table renames, or type changes. It compresses requirements, design, and task generation into a single invocation instead of the full multi-phase flow.

What license and cost apply to these skills?▼

The OpenSpec skills (propose, explore, apply-change, archive-change) are explicitly MIT licensed and free to use. The Modscape skills do not declare a license in their frontmatter, so users should check the repository for licensing terms before redistribution.

What prerequisites are required to run these skills?▼

The four OpenSpec skills require the openspec CLI to be installed. Modscape skills operate on a project structure containing .modscape/changes folders, spec-model.yaml, model.yaml, and specs directories, so an initialized Modscape project is needed before running the SDD flow.