Hidekazu Ishikawa

Maker of local-first AI safety tools

#101910501 follower 78 following

🔥 41 day streak

About

I’m Hidekazu Ishikawa, an independent developer and publisher in Japan. I build small, reviewable tools for safer AI-assisted work, based on more than 20 years of running websites, business systems, and independent media. My current projects focus on local-first diagnostics, public-source intake, and evidence-backed publishing workflows. I share the tools, tests, and limits openly so other makers can evaluate them for themselves.

Links

GitHub

English hub

About

Evidence Gate — Free core & demo

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Maker History

QuotaTempoPlan your weekly Codex and Claude capacity
Sep 2026
Source-to-Publish Evidence GateClose AI-assisted publishing with evidence, not confidence.
Sep 2026

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Joined Product HuntAugust 30th, 2026

Forums

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26d ago

QuotaTempo - Plan your weekly Codex and Claude capacity

QuotaTempo is a privacy-first macOS menu-bar planner for Codex and Claude. See weekly capacity left beside a reset-relative target, compare providers neutrally, and keep quota data on your Mac—no credentials, prompts, transcripts, or telemetry.

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1mo ago

Source-to-Publish Evidence Gate - Close AI-assisted publishing with evidence, not confidence.

An offline, deterministic evidence gate for AI-assisted publishing. Validate a public-safe source and claim manifest, produce matching JSON and Markdown reports, and stop on HOLD before unsupported or stale claims go live. The MIT core is free; an optional USD 29 workflow pack adds repeatable editorial workflows and handoffs.