Code-defined
The product structure lives in code, not in undocumented GUI clicks or screenshots.
Small business operations / Agent-operable tools
Agent-operable internal tools for small businesses.
I build small staff portals, reporting systems, trackers, dashboards, and internal admin tools that can be versioned, tested, deployed, and maintained by AI agents — delivered into your own environment.
小規模事業向けに、AIエージェントが保守できる社内専用プロダクトを作ります。
No customer-data custody. No GUI-only handover. No mystery setup.
What agent-operable means
Code-defined, Git-managed, testable, deployable internal tools that future AI agents can read, modify, verify, and hand over.
Git-managed
Changes can be reviewed, reverted, and handed over with real history.
Testable
Inputs, routes, forms, data rules, and critical workflows can be verified before deployment.
Deployable
The system can be rebuilt and deployed from repeatable commands, not from memory.
Client-owned
Customer data and production infrastructure stay in your own Cloudflare, GitHub, SaaS, or Google environment.
Maintainable
README, schema, routes, tests, deployment notes, and prompts make future AI maintenance realistic.
What I build
Small internal products for owners, managers, and staff who need clearer records without giving up control of their data.
Internal staff portal
Procedures, checklists, reports, inventory notes, FAQs, manuals, and access-controlled staff pages.
Daily / field report system
Staff reports, photos, status, search, filtering, validation, and CSV export.
Checklist system
Opening, closing, cleaning, weekly tasks, completion history, and handover notes.
Inventory memo
Lightweight stock memory before a full POS, accounting, or inventory platform is needed.
Enquiry tracker
Internal intake, status, owner, follow-up date, notes, notifications, and export paths.
Small admin tool
CRUD screens, filters, permissions, exports, API bridges, and index-maintainable handover.
Agent-operable demos
Dummy-data examples of internal tools that can be read, tested, deployed, and maintained by agents.
Internal Staff Portal
Staff instructions, reports, and documents stop being scattered across messages, paper, and folders.
Built as a deployable internal product with dummy data, reusable content, and a structure an agent can inspect.
Internal Intake Tracker
Incoming work gets an owner, status, follow-up date, and export path.
Designed for client-owned deployment and later migration into API-first SaaS or a custom internal product.
Client-owned delivery
Your internal tool should survive beyond my involvement.
No custody
I do not turn koichinishizuka.com into your customer database or business operating system.
Your environment
Production belongs in your Cloudflare, GitHub, API-first SaaS, or Google account, with clear ownership.
Exportable
Records should have CSV, JSON, API, or database paths that make migration possible.
Handover
The delivery includes enough structure for humans and future agents to maintain it.
Guide pricing
Final pricing depends on scope, existing materials, data sensitivity, access requirements, deployment environment, and cleanup needed.
Review / fix
Small code fixes, workflow cleanup, existing internal tool review, or Airtasker-sized implementation tasks.
Internal tool starter
One small workflow such as a checklist, daily report, intake tracker, or inventory memo.
Staff portal / dashboard
Staff-facing internal product with pages, forms, records, access control, and handover docs.
Client-owned deployment
Database-backed internal tools deployed into your own Cloudflare and GitHub environment.
Process
How the work happens
01
Send the problem. Tell me what is messy, repeated, fragile, or too dependent on manual GUI work.
02
Choose the route. I identify what should stay no-build, what belongs in SaaS, and what needs an agent-operable internal tool.
03
Build and verify. I implement a code-defined version with tests, deployment notes, and dummy-safe examples.
04
Deploy and hand over. We move the tool into your environment with README, schema, routes, limitations, and next steps.
Origin Ministry bridge
Need a diagnosis before building?
For deeper diagnosis, Origin Ministry handles hidden losses, agent-readiness, and No-build / API-first SaaS / Agent-operable Tool / Client-owned Deployment decisions.