Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Evan Prodromou replied to the below article:

ActivityPub API Client Reputation

evan @evan@activitypub.space

For the <a href="https://github.com/swicg/activitypub-api" rel="nofollow ugc">ActivityPub API Task Force</a>, I started an issue to discuss <a href="https://github.com/swicg/activitypub-api/issues/44" rel="nofollow ugc">OAuth client reputation systems</a>. A reputation system tracks which OAuth clients are known good, known bad, or unknown. Servers could use this information to limit what clients can do. For example, a server could prevent users from logging in with a known bad client. The reputation could be based on human curation and review, or on automated collection of evidence from historical behaviour of the client.

Evan Prodromou @evan@cosocial.ca

1/10/2026, 8:05:32 PM

Public

@evan@activitypub.space I want to take a moment to note how nice the NodeBB content looks in Mastodon.

If you have a fediverse account, you can quote this note from your own instance. Search https://cosocial.ca/users/evan/statuses/115872598119386242 on your instance and quote it. (Note that quoting is not supported in Mastodon.)