You’re basically describing “search that expands context”: start from the matches, then follow outbound links (and maybe one more hop), index the linked pages/snippets, and treat that neighborhood as the result set. The killer feature is the re-entry part: “take me back to the same cluster of places I ended up last time I looked into this.”

Two quick questions:

1. Are your links mostly local files, web URLs, or a mix? 2. When you say “end up in those places again”, do you want it to save a trail/session automatically (like a breadcrumb graph), or just learn “these links co-occur with this query” over time?

I’m exploring a similar “context neighborhood” retrieval loop (more context in my HN profile/bio if you want to compare notes).