We’re ROOST (Robust Open Online Safety Tools), a non-profit building and maintaining open source, accessible, high-quality, transparent safety tools for digital organizations of all kinds. roost.toolshttps://bsky.app/profile/roost.toolshttps://bsky.app/profile/roost.tools/post/3mvqch7il5c2gMost tooling for fighting fraud and abuse was built for 2010s social media. The abuse evolved. The tools mostly didn't. @julietshen.online at Marketplace Risk NYC on why open source and open weight models help: you run them yourself, so sensitive data never leaves your systems. github.com/roostorg17 Sep 2026 18:39 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mvqch7il5c2ghttps://bsky.app/profile/roost.tools/post/3mvihczkfqk2aYes, please! GitHub stars may be largely a vanity metric, but it does also help us spread the word about our open source moderation tools. :) Plus, it’s fun to watch this chart go up! [contains quote post or other embedded content]14 Sep 2026 15:45 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mvihczkfqk2ahttps://bsky.app/profile/roost.tools/post/3mvb4r4acek2yWe’ll be there, too! Find @cassidyjames.com or @julietshen.online to chat about ROOST, open source, and trust & safety. :) [contains quote post or other embedded content]11 Sep 2026 17:47 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mvb4r4acek2yhttps://bsky.app/profile/roost.tools/post/3mupoc6xtg223Open source is new territory for trust and safety! more safety tools are being released free or open source than ever, but this is a new practice. what does it actually mean to release something as open source, and what does it take to run open source tools like Coop or Osprey for a team?04 Sep 2026 19:13 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mupoc6xtg223https://bsky.app/profile/roost.tools/post/3mupdqy7tus2qWe’re holding our Osprey Working Group call in just under an hour and a half (1730 UTC)! This public meeting brings adopters, contributors, and curious folks together to discuss and plan the Osprey open source project that helps power T&S at Bluesky, Matrix, Discord, & more. Come join us! https://github.com/roostorg/osprey/discussions/48404 Sep 2026 16:04 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mupdqy7tus2qhttps://bsky.app/profile/roost.tools/post/3muk22ghws225We're hosting Mistral today in office hours today. They'll chat with us about their work building Shieldstral - decisions to build a small, reasoning-less model, the underlying taxonomy it relies on, what its ideal use-cases are, where they want more testing/feedback done. [contains quote post or other embedded content]02 Sep 2026 13:27 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3muk22ghws225https://bsky.app/profile/roost.tools/post/3mtha3yb64s2uRoblox was a founding supporter of ROOST. Today three of their safety tools join the ROOST Model Community. Sentinel, PII Classifier, Voice Safety Classifier as well as a benchmark dataset for the PII classifier More on the blog: https://roost.tools/blog/welcoming-roblox-s-safety-models-to-the-roost-community/19 Aug 2026 17:12 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mtha3yb64s2uhttps://bsky.app/profile/roost.tools/post/3mtf3sxjq2c2bPart of our mission is to enable pluralist online safety with cutting-edge technology. Today, Shieldstral from Mistral joins the ROOST Model Community as the latest openly licensed model: 3B params, bring your own policy, multimodal, multilingual https://roost.tools/blog/mistral-shieldstral-joins-the-RMC/18 Aug 2026 20:51 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mtf3sxjq2c2bhttps://bsky.app/profile/roost.tools/post/3mtejxxexf22kupdated link: https://github.com/orgs/roostorg/discussions/82 [contains quote post or other embedded content]18 Aug 2026 15:31 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mtejxxexf22khttps://bsky.app/profile/roost.tools/post/3mtedryk7cs26We have a Request For Comment out seeking feedback on our approach to natively support open weight models in Coop and Osprey! https://github.com/roostorg/coop/discussions/102518 Aug 2026 13:40 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mtedryk7cs26https://bsky.app/profile/roost.tools/post/3mtedlfvgac2eMuch like the work that goes into the protocols and software behind the web, most people don’t know about trust and safety—including the harms that exist and the tools to combat them. We attended FOSSY to chat with, learn from, and help educate fellow open source developers. #FOSSY #FediCon https://roost.tools/blog/trust-safety-across-the-fediverse-roost-fossy-fedicon-2026/18 Aug 2026 13:37 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mtedlfvgac2ehttps://bsky.app/profile/roost.tools/post/3mswf73gm2s22Shouldn't we all just go offline? Our President Dr. @camillefrancois.bsky.social gets that question constantly. Her answer? touch grass, absolutely — but we shouldn't have to choose between a harmful internet and no internet at all.... youtube.com/shorts/qppgrmv0INQ https://youtube.com/shorts/qppgrmv0INQ13 Aug 2026 00:28 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mswf73gm2s22https://bsky.app/profile/roost.tools/post/3msjdqspi3k2lROOST OSS Community Manager @cassidyjames.com is at #FOSSY in Vancouver through Sunday! FOSSY runs Aug 6–9 at UBC, hosted by the Software Freedom Conservancy. Our tools are free, open source, and self-hostable. The latest Osprey ships ATProto plugins. Come say hi! https://roost.tools/blog/osprey-1-1-0-easier-to-use-extend-and-test/07 Aug 2026 19:58 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3msjdqspi3k2lhttps://bsky.app/profile/roost.tools/post/3msedbbb57k26Another day at the Crimes Against Children Conference. Time well spent with folks from Cinder and Thorn, and demoing Coop, the world's first free, open source review and enforcement system any org can self-host, with NCMEC reporting built in. Nobody solves this alone. #CACC202605 Aug 2026 20:06 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3msedbbb57k26https://bsky.app/profile/roost.tools/post/3msb4nmquic2mROOSTERs @julietshen.bsky.social & @kristinalvandi.bsky.social are at the Crimes Against Children Conference #CACC2026. We work w/everyone (platforms, nonprofits, vendors) to make detection, review, & reporting tools widely available so all organizations can study, modify, & use them. Come see us!04 Aug 2026 13:30 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3msb4nmquic2mhttps://bsky.app/profile/roost.tools/post/3mrsojtblm22lStill thinking about everyone we met at #TrustCon. So here's a nudge: we're hiring 🐓 Engineers to build open source safety tools protecting 360M+users, and a marketing mgr to help that work reach people. Everything we ship is public & free for platforms to study, modify, use. roost.tools/careers https://roost.tools/careers29 Jul 2026 19:40 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mrsojtblm22lhttps://bsky.app/profile/roost.tools/post/3mrdggjmx2c2zThat's a wrap on TrustCon 🐓 3 days, 6 sessions, 1 launch (Osprey 1.1.0!), many chicken hats. Favorite moment: non-engineers building working moderation rules in our workshop — safety tooling you can study, modify, and use. One year of Coop & Osprey. Just getting started.23 Jul 2026 18:05 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mrdggjmx2c2zhttps://bsky.app/profile/roost.tools/post/3mrb3iyb5fs2zFinal day of #TrustCon. We saved the hands-on stuff for last. 1 PM: ship your own T&S tooling with Coop + Osprey (incl. today's 1.1.0). No-code path or run it locally. Your practice labels land on real posts right here on @bsky.app. 3 PM: AI Can't Touch This: Where AI actually helps T&S Say hi!22 Jul 2026 19:44 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mrb3iyb5fs2zhttps://bsky.app/profile/roost.tools/post/3mrawicuo7c2vJust announced at #TrustCon: Osprey 1.1.0 is out! Dark mode, registries that show what your deployment actually does, comparable benchmarks, and groundwork for plain-language queries. https://roost.tools/blog/osprey-1-1-0-easier-to-use-extend-and-test/22 Jul 2026 18:14 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mrawicuo7c2vhttps://bsky.app/profile/roost.tools/post/3mr6fbhaxac2lTrustCon day 2 💚 Thank you to everyone who packed yesterday's panel on what open source means for your T&S stack with @julietshen.bsky.social. Fitting week: 1 yr ago today we introduced Coop & Osprey. Today they help protect 360M+ users, including 45M events/day right here on Bluesky. roost.tools21 Jul 2026 18:01 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mr6fbhaxac2lhttps://bsky.app/profile/roost.tools/post/3mr3tucf5b22lTrustCon day 1. Our ROOST team is in SF! T&S tooling research meets reality (1:30) and our panel on what open source means for your safety stack (4:10). Find us! @annebdh.bsky.social @cassidyjames.com @julietshen.bsky.social https://www.tspa.org/event/trustcon-2026/20 Jul 2026 17:44 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mr3tucf5b22lhttps://bsky.app/profile/roost.tools/post/3mqtuwrev322dThe whole ROOST team will be at TrustCon in SF next week — 6 sessions across 3 days, including a hands-on workshop from yours truly. Want to meet up about Coop, Osprey, or HMA? Reach out. We'd love to talk: @julietshen.bsky.social @annebdh.bsky.social tspa.org/event/trustcon-2026/ https://tspa.org/event/trustcon-2026/17 Jul 2026 13:42 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mqtuwrev322dhttps://bsky.app/profile/roost.tools/post/3mqs566lgoc2qOpen source safety infrastructure doesn't build itself, and it definitely doesn't explain itself. We're hiring for both, and we're actively looking for great people to join our mission! ▪️ Software Engineers ▪️ Marketing Manager Check out all of our roles here: roost.tools/careers https://roost.tools/careers16 Jul 2026 21:04 +0000at://did:plc:ku6pdrafvko2txpg44v6bfcp/app.bsky.feed.post/3mqs566lgoc2q