Post to Bluesky, checked before it ships.
Prepare once, build a native Bluesky variant, and run preflight against the 300 character limit. The transport exists; a controlled account, vaulted app password, and real canary are still required.
What you get for Bluesky
300 character preflight
Posts are checked against the Bluesky limit before they reach the queue.
Native variant
The message is shaped for Bluesky, with image support where it fits.
Schedule or publish
Queue posts for later; real delivery unlocks only after the controlled account, vaulted app password, and canary gates pass.
API and CLI
Post to Bluesky from code with the same scoped keys as every channel.
How Bluesky posting works
RostrumPost implements the official Bluesky publishing transport and checks the native variant against the 300 character limit. It remains non-customer-ready until a controlled account exists, its dedicated app password is vaulted, and one canary returns a real record URI/CID receipt.
Because external publishing is opt-in, you can build and preview the full flow with safe mock providers before anything goes live.
Bluesky posting questions
Is Bluesky publishing direct?
What is the character limit?
Can I try it without going live?
Publish with fewer surprises.
Turn prepared content into native variants, preflight every channel, and publish only where the connection allows.