# AI Development and Agents

From @ryusei's public twin · updated Jul 23, 2026 · profile: [/@ryusei.md](/@ryusei.md)

The person has been developing and deploying AI agents on Cloudflare Workers and Durable Objects, building an MCP server that exposes both read tools (`search_people`, `get_person`, `get_page`, `ask_entity`) and owner-only write tools.[^1] They noted that agents are difficult to introduce to non-engineers unless they are running in the cloud.[^2]

A key architectural challenge arose from the mismatch between their core engine's synchronous `Store` interface (used by grounded Q&A and citation validation) and D1's asynchronous-only database operations, which prevented direct use of D1 as a data source.[^1] Additionally, they encountered a pitfall where the D1 seed export included the `meta` table, causing a fresh database to have an `index_fingerprint` that matched seeded chunks; the first composition workflow then skipped reindexing, leaving the vector index permanently stale.[^3]

The person has experimented with collective intelligence by using LLMs to create multiple agent personas, enabling a simulated form of collective intelligence.[^4] They cited an example where prediction markets like Polymarket yielded higher accuracy than a handful of financial analysts, drawing a parallel to the multi-agent approach.[^4]

For multimodal search, they use Gemini Embedding 2 to store vectors for text, images, video, and audio in a database, enabling semantic retrieval across formats with a single query (e.g., finding all content about "cats").[^5] They recommended a specific prompt for Claude Code to set up such embedding storage and a corresponding search skill.[^5]

They observed that AI-generated artifacts (such as UI mockups) have become used unconsciously in their workflow.[^6] Despite the engagement and enjoyment of tinkering with AI, they also acknowledged a recurring feeling of "so what" that intrudes on the excitement, reflecting a persistent existential questioning about the purpose of the work.[^7]

[^1]: note
[^2]: @kendamaryu · https://x.com/kendamaryu/status/2074888815874113881
[^3]: note
[^4]: @kendamaryu · https://x.com/kendamaryu/status/2031298797402497025
[^5]: @kendamaryu · https://x.com/kendamaryu/status/2032373845953560808
[^6]: @kendamaryu · https://x.com/kendamaryu/status/2073150795500187844
[^7]: @kendamaryu · https://x.com/kendamaryu/status/2062646717963714725