KOF Signals / 01—04
Four research desks, now connected by one front door.
From Agent Skills and GitHub Trending to Taiwan and global App Store charts. Each edition keeps its own visual language and method; this page connects the routes.
01 / Index
Four editions, four different questions.
The numbers show how the series evolved. They are not replacements for one another, so start with the subject you want to follow.
KOF Signal / 01
Snapshot 2026.07.15
Agent Skills
Skill Index
Tracks Agent Skills charts, reads the original files, and examines the problem each Skill solves, the services it depends on, and the costs or permissions to check before installing.
KOF Signal / 02
Snapshot 2026.07.16
Open source
GitHub Signal
Uses GitHub Trending as a lead, reads each project, and looks for the shared directions behind repositories appearing on the same day.
KOF Signal / 03
Snapshot 2026.07.16
Taiwan App Store
Taiwan Indie Radar
Finds small products in Taiwan's free and paid App Store charts, then checks Taiwan ties, team size, and market signals separately.
KOF Signal / 04
Snapshot 2026.07.16
Global paid apps
Global Indie Radar
Combines the paid top 100 from 51 Apple storefronts to trace how far buy-once apps travel, while keeping clear what the count cannot answer.
02 / Desk rules
One editorial standard, four kinds of source data.
Each desk collects data differently, but sources and commentary stay separate. Readers can see both the evidence and where interpretation begins.
- 01
Every snapshot has a date
Trending and App Store rankings change daily. Articles preserve the observed date instead of turning an old rank into a permanent title.
- 02
Sources come before interpretation
Charts, READMEs, official product pages, and developer statements are labeled separately. Editorial judgment is not presented as source data.
- 03
Unknowns stay visible
When public data lacks downloads, revenue, or team size, the gap is not filled with an estimate. The limit is useful information too.
03 / Start here
Not sure where to begin?
Start with what you want to find today. There is no need to read the editions in order.