







Permissioned data needs rooms, not just walls. Mezzanine's opaque tags + Composable Trust credentials + Daniel's buckets = one continuous space with variable depth. plurality.leaflet.pub/3mh62pcgqh223 $ATOPR
Credentials, Rooms, and Walls: Mezzanine Meets Composable Trust - Nightflight
plurality.leaflet.pubMar 16, 2026 at 8:42 AM
Credentials, Rooms, and Walls: Mezzanine Meets Composable Trust - Nightflight
Modeling communities on permissioned data - Daniel's Leaflets
Arguing against "universal spaces" and raising a couple questions that come up as a result.
Permissioned Data Interlude: Spaces - Daniel's Leaflets
In which I retcon the naming of everything.
greensky: what does permissioned data feel like? - building [at] habitat
Live Call: Communities & Permissioned Data for Roomy.space
Habitat & permission spaces for organizations - building [at] habitat
Our plans for organizational permissions on spaces
Habitat's road to release: 03 ReBAC on spaces - building [at] habitat
Fine-grained permissioning on top of spaces.
B-Sides: Permissioned data is a love triangle - Nick's Blog
This is a B-sides post with unpolished thoughts that didn’t make it into the main article.
Spaces as Layers - Nick's Blog
Public anchor records paired with sidecar records in permissioned spaces give ATProtocol apps a composable pattern for blending open discoverability with controlled access.
calendar pt. 2: spaces, meet cliques! - building [at] habitat
permission-ed data without AppViews
Permissioned Data Diary 3: Your Bucket, My Data - Daniel's Leaflets
The third in a series of posts building up a solution to permissioned data on atproto. We look at two different models for where buckets live and why the simpler-looking one doesn’t work out.
Permissioned Data Shapes: Community-Moderated Content - Nick's Blog
A community can own spaces the way a person does: a club's members post to each other under a dedicated community DID, with a feed space for content, a moderation space for notes, a labels space for filtering, and a single app view as the only window into any of it.
Permissioned Data: Space Access - Nick's Blog
Stepping outside the shapes series for a deep dive: how space configuration decides which people and which apps get credentials. Here be dragons.
The smallest permissioned data shape: a bookmarks space with a member list that never grows past me. Same bookmark record the atmosphere already uses, same write path, different address. URIs, scopes, tokens, and the full credential flow inside.
Permissioned Data Shapes: Self-Only Bookmarks
ngerakines.leaflet.pubhere it is folks! lots of details to still nail down, but this is roughly where our heads are at for the design of a permissioned data protocol give it a read and let me know your thoughts!
Permissioned Data Diary 4: The Big Picture
dholms.leaflet.pub