Setup availability

Tool access

A human pastes the generated configuration; the thirteen tools then expose setup status, exact destination IDs, direct media upload, and evidence-backed comparisons.

Media source

upload_media returns a short-lived workspace-scoped PUT contract; get_media verifies the stored handle before publishing.

Visibility defaults

TikTok uses SELF_ONLY and YouTube uses private. The Instagram adapter does not expose a visibility field. LinkedIn is different again: its Posts API requires a visibility value, so one is always set — by LinkedIn, on the account’s behalf. Postdom neither chooses nor reads it, so an absent value here is unknown rather than unsupported.

Facebook Reels, X and Snapchat Spotlight each publish under the account’s own audience settings and Postdom sends no visibility value for any of them. Facebook’s only setting is the fixed Reel format. Snapchat additionally needs a Public Profile on the account before it can publish at all.

Threads is the same again — Postdom sends no Threads settings and Meta’s posting endpoint exposes no visibility field. What differs is why an absent value is honest here: a Threads profile is public or private, and the post inherits that from the account. The audience control is real and it is one level up, so Postdom neither sets nor reads it.

Bluesky is the genuinely-absent case rather than the unknown one: an app.bsky.feed.post carries no visibility field, so every post is public and there is nothing to choose. Reply gating lives in separate threadgate and postgate records that Postdom does not write.

Measurement

Never and unverified fields retain reasons. Other null values may have no reason.