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+# Firefish's ActivityPub extensions
+
+These are the extensions to ActivityPub that Firefish implements. This page uses [compact IRIs](https://www.w3.org/TR/json-ld/#dfn-compact-iri). The `firefish` prefix is used to refer to `https://firefish.dev/ns#`.
+
+## speakAsCat
+
+- Compact IRI: `firefish:speakAsCat`
+- Canonical IRI: `https://firefish.dev/ns#speakascat`
+
+Used on actors to indicate that they not only identify as a cat, but also want to have their text be transformed to speak like one, expressed as a boolean value. If this property is set to true, displaying the actor’s posts will make them speak with “nya” instead of “na” and other cat-related text mannerisms. Used in combination with [misskey:isCat](https://misskey-hub.net/ns/#iscat).