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`

FEP-844e: Capability discovery

silverpill @silverpill@socialhub.activitypub.rocks

https://codeberg.org/fediverse/fep/src/branch/main/fep/844e/fep-844e.md

Capability discovery for ActivityPub applications.

This document is based on the idea described in FEP-aaa3: Listing Implemented Specifications on the Application Actor.

If you have a fediverse account, you can quote this note from your own instance. Search https://socialhub.activitypub.rocks/ap/object/127a0dbb2ff1b3a6d3f09adc492cbd8b on your instance and quote it. (Note that quoting is not supported in Mastodon.)