Human vision. AI execution. Real products.

We don't use AI to write code faster.
We use AI to build what one person couldn't build alone.

The best tools come from understanding a problem, then solving it with whatever works best — today that means human judgment paired with AI capability.

• Human → vision, taste, the decisions that matter
• AI → execution, iteration, everything that scales
• Together → products one person couldn't ship alone

This isn't about replacing developers. It's about what one developer can build now.

Each name is a Japanese word; the meaning is the function, and the subject is always a human act — read, watch, keep. All MIT, local-first, privacy-first.

	yomi · 読み The personal LINE MCP server for Claude and local AI agents — read, reply, send images, and search chats with E2EE decrypted locally.	claude mcp add yomi -- npx @rikaidev/yomi
	toki · 時 Automatic developer time-tracking — no timer to press.	brew install RikaiDev/tap/toki
	mesen · 目線 UX testing through simulated user viewpoints — your UI through someone else's eyes.	npm install -D mesen
	keiko · practice A backend state harness for coding agents — map the system, run authorized proofs, and return revision-bound receipts.	Architecture phase
	mimamori · 見守り A Discord bot that guards your team's tone — gentle watching, not surveillance.	git clone https://github.com/RikaiDev/mimamori
	minori · 実り AI agriculture — voice field logs and harvest prediction over LINE.	bun install && bun run dev

_{AII — the manifesto layer (interfaces should understand people, not the reverse). · cortex — an early forerunner, now archived.}

The code is the proof. Not slides. Not demos. Not Twitter threads. Clone it. Read it. Run it. Break it.

Everyone ships with AI now; the only question is whether yours can be cloned, read, and verified. If AI-native development works, you should be able to see it in the commits.

• Yomi (読み) — An open-source personal LINE MCP server for Claude and other local AI agents. Read, reply, send images, and search your existing LINE chats with on-device Letter Sealing decryption. Install the Claude Desktop extension on macOS, Windows, or Linux, or run it from npm.
• Mimamori (見守り) — A gentle, contextual guardian for team communication on Discord.
• Keiko — A backend state harness for coding agents. Map the system, run authorized proofs, and return revision-bound receipts.
• Mesen (目線) — Behavioral UX testing through simulated user perspectives.
• Toki (時) — Privacy-first automatic time tracking for developers.

Explore every project at rikaidev.github.io.

github.com/RikaiDev · rikaidev.github.io · MIT · Building in public. Shipping in production.