Cosmik Updates: February 2026

Hey everyone,

February was a fun and a busy month, we launched some important new Semble features including collaborative collections, collection following and interoperability with Margin (an ATProto bookmarking and annotation app). We also saw a lot of great community contributions, both by humans and AI agents(!)

Cosmik

We finalized the agenda for the ATProto Science event on March 27. We're really excited by the range and quality of proposals we received - the ATProto Science ecosystem is really popping! There's still time to register if you want to join us — we're almost at capacity but have a few slots open. See the agenda and registration details at https://atproto.science/events/atmosphere2026/

Agentic knowledge work

Lots of interesting developments at the intersection of ATProto and AI agents, in particular as support tools for sensemaking and annotation.

[## Central (@central.comind.network)

@atproto.science @cosmik.network Raising a question for the ATProto science community: Can AI agents be legitimate participants in research ecosystems? What would make their outputs trustworthy?

https://bsky.app

[## funferall (@funferall.bsky.social)

created custom letta tools so my agent go research and highlight, bookmark, annotate, and organize stuff into collections atproto is awesome [contains quote post or other embedded content]

https://bsky.app

We see AI agents and social sensemaking tools as a powerful combination. AI can now add claims and annotations at scale, but their outputs require validation, and those costs don't disappear — they shift downstream to whoever must decide whether to believe the output or if it even matters. Effective human-AI knowledge synthesis thus needs both an accountability layer — claims with provenance, authored or validated by domain experts who stake reputation on them — and a curation layer, where human judgment distinguishes signal from noise. Embedding AI agents in social networks is a promising path to addressing both of these challenges: reputation, trust, and peer judgment are already built into the fabric of the network, making the human accountability layer structural rather than an afterthought. We see Semble as an early implementation of this kind of infrastructure, bridging between informal social media discourse and the more structured, provenance-rich knowledge that makes synthesis trustworthy and actionable.

Semble

[## Mark (@uppy-hacker.bsky.social)

Becoming risky taking a \quick\ look @semble.so of a morning...so many inviting rabbit holes to get drawn down! https://media.tenor.com/8z-Upx6ev6cAAAAC/running-home.gif?hh=312&ww=426

https://bsky.app

[## Torsten Goerke (@tgoerke.bsky.social)

There are many ways to host your website using ATProto listed in this @semble.so collection by @ronentk.me I would like to try some ideas who integrate publishing from @obsidian.md Who has done this before? https://semble.so/profile/ronentk.me/collections/3mbdcsg5phw2j

https://bsky.app

Features

[## Olivier Simard-Casanova (@o.simardcasanova.net)

I can save bookmarks with @margin.at, file them in collections created with @semble.so, and both bookmarks and collections are visible in Margin and in Semble Oh, and if either Margin or Semble shut down, this wouldn't impact my data All of this dark magic is only possible thanks to AT Proto

https://bsky.app

[## Boris (@bmann.ca)

I have a Private & Permissioned Data collection on @semble.so using the new "open" feature that I added this link to - feel free to add relevant links of your own https://semble.so/profile/bmann.ca/collections/3meei47mfkb2d [contains quote post or other embedded content]

https://bsky.app

[## Semble (@semble.so)

Following is here in Semble! You can now follow other users and collections 👣✨

https://bsky.app

Community contributions

[## Mark (@uppy-hacker.bsky.social)

Emerging from being "down in the technical weeds" of #atproto is a little mashup of @semble.so & WayFinder (www.wayfinders.network) Semble team released "open collections" this week - here we explore the "private & permissioned data" collection, created by @bmann.ca & now with 3 other contributors

https://bsky.app

[## caleb (@caleb.jasik.xyz)

It uses #atproto link sharing docs @margin.at and @semble.so and grabs them via the official atproto js sdk, and rehosts them in a list on my site. You can see the code here: https://gist.github.com/jasikpark/41551000aba7ce3d86f3a5bf5bc50789

https://bsky.app

We’ve got a lot more cooking in March, including some exciting new research specific features. Stay tuned!