2026-02-19. Nomoyu Daily for Indie Developers (Issue 278)

📰 News

Download agent plug-ins from trusted sources

The current “skill market” is also a major trap. Agent tools let you download all kinds of third-party skills, such as tools for analyzing stocks or managing calendars. It feels like the early Android marketplace, full of everything imaginable.

You simply do not know who wrote the code. There was reportedly a case where someone uploaded a tool that looked harmless and even had an attractive name, but it hid malicious logic inside. Once installed, it gained all the permissions you had granted to the agent. This is like pulling a random person off the street to babysit your child just because they are wearing a shirt that says “professional nanny.”

Supply chain attacks are already painful enough. The skill ecosystem for AI agents practically opens the front door to hackers. If companies want to use it internally, they must never allow employees to casually download unreviewed extension packages. Even if a feature seems useful to you, you still need to weigh whether the code behind it is clean.

🔧 Solutions

PinnaclePlus

PinnaclePlus is an automation system that uses AI to generate content, publish automatically, and provide scalable workflows, helping users automate Instagram and YouTube content operations.

🖥️ Software

StreakGuard

StreakGuard is a locally running client app that intercepts websites on a blocklist, helping users pause and choose whether to continue, preventing visits to harmful content.

SuperchargeBrowser

SuperchargeBrowser is a privacy-first browser extension that uses a one-time payment model to address Chrome memory leaks, block trackers, and optimize websites.

DocuChat

DocuChat is an AI document chat and study app that runs locally and offline, supporting PDF Q&A, quiz generation, and related features.

MirrorCV

MirrorCV is an AI resume optimization tool that supports edit mode and job description mode through resume uploads and editing instructions, with one-click download of optimized resumes.

Writing Fixer

Writing Fixer is an AI grammar correction tool that fixes English grammar and spelling mistakes without changing the original meaning, avoiding rewrites or tone changes.

modelator

modelator is an AI tool that helps users choose the best model for a specific use case, create regression tests, and monitor model performance, while also supporting endpoints in applications for hot-swapping models or fine-tuning parameters.

Rendrflow

Rendrflow is a fully offline AI image upscaling and editing tool with AI upscaling, intelligent editing, batch processing, and other features, with all operations running on local CPU/GPU to ensure data privacy.

ZDELab

ZDELab is a lightweight security scanning tool that quickly detects common security configuration mistakes in websites or apps, helping developers find obvious security issues before release.

Reddit Post Tools

Reddit Post Tools is a Chrome extension that automatically loads, groups, filters, and exports saved Reddit posts, while also providing comment-chain viewing.

GymBo Pro

GymBo Pro is a subscription-free fitness tracking app with smart progress recommendations, unilateral training analysis, fully offline use, and privacy protection.

StreamFuse

StreamFuse is a tool that helps livestreamers find collaboration partners through automated streaming-time matching, statistics verification, and personalized matching by style.

🌐 Websites

Shadcn Space

Shadcn Space is an animated UI component library based on Shadcn and Radix, offering copy-paste premium interactive modules to improve web project development efficiency, with a beta planned for January.

Moopes

Moopes is a topic-based small group chat app that offers a natural conversation experience between large forums and one-on-one private chat, letting users join small topic rooms for interaction.

Web Shufflr

Web Shufflr is a StumbleUpon alternative that helps users discover interesting content search engines struggle to find by randomly browsing curated websites, including homepages, blogs, niche services, and more.

Replytag

Replytag is a free ChatGPT website embed tool based on the open-source OpenAI ChatKit and OpenAI agent platform. It charges no fees, lets users pay OpenAI directly for token usage, and supports free migration and self-hosting.

Nexly

Nexly is a dynamic user-matching social media website that helps users discover new like-minded friends based on interests, age, gender, and location, breaking the limits of existing social circles.

NXGN Tools

NXGN Tools is an A/B testing tool that helps users optimize marketing strategies through experiments, including discovering that discount banners actually reduced conversion rates.

mathbyvivit

mathbyvivit is a math learning platform using a freemium model, offering some free content and five free quizzes per day to attract users and explore monetization.

✍️ Notes

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