diff --git a/AGENTS.md b/AGENTS.md
index 0b1498e8..435758d3 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -2,7 +2,9 @@
 
 This guide tells AI agents how to keep bitvid aligned with the current product direction. Follow it whenever you touch code, content, or documentation inside this repository.
 
-For any nostr related work, please review the nip documentation located in /docs/nips before begining work. 
+For any nostr related work, please review the nip documentation located in /docs/nips before begining work.
+
+**Comment publishing guardrail:** Session actors are limited to passive telemetry (e.g., view counters). Always require the logged-in Nostr signer when sending video comments through [`js/nostr/commentEvents.js`](js/nostr/commentEvents.js). See the reminder in [`docs/nostr-event-schemas.md`](docs/nostr-event-schemas.md#event-catalogue) for context.
 
 ---
 
diff --git a/docs/nostr-event-schemas.md b/docs/nostr-event-schemas.md
index f96f253e..2ba0e00f 100644
--- a/docs/nostr-event-schemas.md
+++ b/docs/nostr-event-schemas.md
@@ -139,6 +139,8 @@ import { updateWatchHistoryListWithDefaultClient } from "./nostrWatchHistoryFaca
 | NIP-94 mirror (`NOTE_TYPES.VIDEO_MIRROR`) | `1063` | Tags forwarded from `publishVideo` (URL, mime type, thumbnail, alt text, magnet) | Plain text alt description |
 | Repost (`NOTE_TYPES.REPOST`) | `6` | `['e', <event id>, <relay?>]` with optional address pointer `['a', <kind:pubkey:identifier>, <relay?>]`, and `['p', <pubkey>]` when the origin author is known; inherits schema append tags | Empty content |
 | Video comment (`NOTE_TYPES.VIDEO_COMMENT`) | `1111` | NIP-22 root scope tags `['A'\|`E`\|`I`, <pointer>, <relay?>?], `['K', <root kind>]`, and `['P', <root author pubkey>, <relay?>?]` plus parent metadata `['a'\|`e`\|`i`, <parent pointer>, <relay?>?, <author?>], `['k', <parent kind>]`, `['p', <parent author>, <relay?>?]`; builder retains legacy lowercase fallbacks (`['a', ...]`/`['e', ...]`/`['p', ...]`) alongside the uppercase set for compatibility; inherits schema append tags | Plain text body sanitized to valid UTF-8 |
+
+> **Publishing note:** Session actors only emit passive telemetry (for example, view counters) and must **not** sign video comments. Require a logged-in Nostr signer for comment publishing via [`commentEvents`](../js/nostr/commentEvents.js).
 | NIP-71 video (`NOTE_TYPES.NIP71_VIDEO`) | `21` | `['title', <title>]`, optional `['published_at', <unix seconds>]`, optional `['alt', <text>]`, repeated `['imeta', ...]` entries describing NIP-92 media variants, optional `['duration', <seconds>]`, repeated `['text-track', <url>, <kind>, <language>]`, optional `['content-warning', <reason>]`, repeated `['segment', <start>, <end>, <title>, <thumbnail>]`, repeated hashtags `['t', <tag>]`, repeated participants `['p', <pubkey>, <relay?>]`, repeated references `['r', <url>]` | Plain text summary carried in the content field. Publishing is gated by the `FEATURE_PUBLISH_NIP71` runtime flag while the rollout stabilizes. |
 | NIP-71 short video (`NOTE_TYPES.NIP71_SHORT_VIDEO`) | `22` | Same as `NOTE_TYPES.NIP71_VIDEO`; the kind differentiates short-form presentations. | Plain text summary; gated by `FEATURE_PUBLISH_NIP71`. |
 | Relay list (`NOTE_TYPES.RELAY_LIST`) | `10002` | Repeating `['r', <relay url>]` tags, optionally with a marker of `'read'` or `'write'` to scope the relay; marker omitted for read/write relays | Empty content |