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rose-ash/lib/mod/activity.sx
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mod: Ext 16 — ActivityPub-shaped decision export, 350/350
mod/decision->activity maps a decision to a moderation verb (remove→Delete,
ban→Block, hide/escalate→Flag, keep→no activity) shaped like an AP activity,
preserving the precise action. mod/decisions->activities batch-exports dropping
keeps. With wire (Ext 14) + fed trust (Phase 4) the federated moderation path is
end-to-end: decide → activity/wire → peer → trust-gate → apply. +17 tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 19:28:49 +00:00

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;; lib/mod/activity.sx — export decisions as ActivityPub-shaped events.
;;
;; The rose-ash platform propagates cross-domain effects as ActivityPub-shaped
;; activities. A moderation decision maps to a moderation verb so the rest of the
;; platform (and federated peers) can act on it: remove→Delete, ban→Block,
;; hide/escalate→Flag, keep→no activity. The precise mod action is preserved in
;; :action so a consumer can disambiguate (e.g. hide vs escalate, both Flag).
(define
mod/action->verb
(fn
(action)
(cond
((= action "remove") "Delete")
((= action "ban") "Block")
((= action "hide") "Flag")
((= action "escalate") "Flag")
(true nil))))
(define
mod/decision->activity
(fn
(d actor)
(let
((verb (mod/action->verb (get d :action))))
(if (nil? verb) nil {:type verb :action (get d :action) :actor actor :summary (str "moderation/" (get d :action) " via " (get d :rule)) :object (get d :report-id) :rule (get d :rule)}))))
;; map a batch of decisions to activities, dropping the no-op keeps
(define
mod/decisions->activities
(fn
(decisions actor)
(reduce
(fn
(acc d)
(let
((a (mod/decision->activity d actor)))
(if (nil? a) acc (append acc (list a)))))
(list)
decisions)))