feat(cli): add users set-status command for NIP-38 profile status

crates/buzz-cli/README.md

@@ -57,6 +57,8 @@ buzz users get                          # your own profile
 buzz users get --pubkey <hex>           # single user
 buzz users get --pubkey <hex> --pubkey <hex>  # batch (max 200)
 buzz users set-presence --status online
+buzz users set-status --text "heads down on the CLI" --emoji "🚀"
+buzz users set-status --clear                 # remove your status
 
 # DMs
 buzz dms open --pubkey <hex>
@@ -133,6 +135,7 @@ stored rules in `validation_error` so an owner can remove and repair them.
 | | `set-profile` | Update your profile |
 | | `presence` | Get presence status |
 | | `set-presence` | Set presence status |
+| | `set-status` | Set or clear your NIP-38 profile status |
 | `workflows` | `list` | List workflows |
 | | `get` | Get workflow definition |
 | | `create` | Create a workflow |

crates/buzz-cli/TESTING.md

@@ -87,7 +87,7 @@ export BUZZ_PRIVATE_KEY="nsec1..."   # from the mint output
 | `channels:read` | ✅ | `channels list`, `channels get`, `channels members` |
 | `channels:write` | ✅ | `channels create`, `channels update`, `channels join`, `channels leave`, `channels topic`, `channels purpose` |
 | `users:read` | ✅ | `users get`, `users presence` |
-| `users:write` | ✅ | `users set-profile`, `users set-presence` |
+| `users:write` | ✅ | `users set-profile`, `users set-presence`, `users set-status` |
 | `files:read` | ✅ | — |
 | `files:write` | ✅ | — |
 | `admin:channels` | ❌ | `channels archive`, `channels unarchive`, `channels delete`, `channels add-member`, `channels remove-member` |
@@ -331,6 +331,20 @@ buzz users set-presence --status online | jq .
 buzz users set-presence --status away | jq .
 buzz users set-presence --status offline | jq .
 # Note: set-presence may fail — kind:20001 is ephemeral and rejected by the HTTP bridge
+
+# users set-status — NIP-38 kind:30315 on the d:general coordinate
+buzz users set-status --text "reviewing PRs" --emoji "🔍" | jq .
+buzz users set-status --text "no emoji this time" | jq .
+
+# users set-status — emoji-only status (intentional: text is blank, emoji is kept)
+buzz users set-status --text "" --emoji "🎶" | jq .
+
+# users set-status --clear — removes the status (empty content, d:general only)
+buzz users set-status --clear | jq .
+
+# --clear is mutually exclusive with --text/--emoji
+buzz users set-status --clear --text "nope" 2>&1; echo "exit: $?"
+# Expected: exit 1 — clap conflict error
 ```
 
 ### 6.8 Channel Members (add/remove require admin:channels)
@@ -606,3 +620,4 @@ buzz channels delete --channel "$FORUM_ID" | jq .
 | 59 | `notes get` | ☐ | By name, by naddr, --content-only, cross-author, ambiguous → exit 1 |
 | 60 | `notes ls` | ☐ | Own, --author all, --tag, --limit |
 | 61 | `notes rm` | ☐ | Delete→get 404, double-delete idempotent, missing slug → NotFound |
+| 62 | `users set-status` | ☐ | Text+emoji, text only, emoji-only (`--text ""`), `--clear`, `--clear` + `--text` → exit 1 |

crates/buzz-cli/src/commands/users.rs

@@ -304,6 +304,22 @@ pub async fn cmd_set_presence(client: &BuzzClient, status: &str) -> Result<(), C
     Ok(())
 }
 
+/// Set user status — sign and submit a NIP-38 kind:30315 user status event.
+///
+/// Uses the `d:general` coordinate that the desktop client reads for the
+/// profile status line. A blank `text` with no `emoji` clears the status.
+pub async fn cmd_set_status(
+    client: &BuzzClient,
+    text: &str,
+    emoji: Option<&str>,
+) -> Result<(), CliError> {
+    let builder = buzz_sdk::build_user_status(text, emoji).map_err(crate::validate::sdk_err)?;
+    let event = client.sign_event(builder)?;
+    let resp = client.submit_event(event).await?;
+    println!("{}", normalize_write_response(&resp));
+    Ok(())
+}
+
 pub async fn dispatch(
     cmd: crate::UsersCmd,
     client: &BuzzClient,
@@ -331,6 +347,16 @@ pub async fn dispatch(
         }
         UsersCmd::Presence { pubkeys } => cmd_get_presence(client, &pubkeys).await,
         UsersCmd::SetPresence { status } => cmd_set_presence(client, &status.to_string()).await,
+        UsersCmd::SetStatus { text, emoji, clear } => {
+            // `--clear` is mutually exclusive with `--text`/`--emoji`: publish the
+            // empty `d:general` event that clients read as "no status".
+            let (text, emoji) = if clear {
+                ("", None)
+            } else {
+                (text.as_deref().unwrap_or_default(), emoji.as_deref())
+            };
+            cmd_set_status(client, text, emoji).await
+        }
     }
 }
 

crates/buzz-cli/src/lib.rs

@@ -838,6 +838,19 @@ pub enum UsersCmd {
         #[arg(long, value_enum)]
         status: PresenceStatus,
     },
+    /// Set your user status (NIP-38 kind:30315 — the "status" line on your profile)
+    #[command(name = "set-status")]
+    SetStatus {
+        /// Status text (required unless --clear)
+        #[arg(long, required_unless_present = "clear")]
+        text: Option<String>,
+        /// Optional emoji shown before the status text
+        #[arg(long)]
+        emoji: Option<String>,
+        /// Remove your status entirely
+        #[arg(long, conflicts_with_all = ["text", "emoji"])]
+        clear: bool,
+    },
 }
 
 #[derive(Subcommand)]
@@ -1803,6 +1816,30 @@ mod tests {
         Cli::command().debug_assert();
     }
 
+    #[test]
+    fn set_status_clear_rejects_text_and_emoji() {
+        for extra in [["--text", "busy"], ["--emoji", "🎶"]] {
+            let args = ["buzz", "users", "set-status", "--clear"]
+                .into_iter()
+                .chain(extra);
+            assert!(
+                Cli::try_parse_from(args).is_err(),
+                "--clear must conflict with {}",
+                extra[0]
+            );
+        }
+    }
+
+    #[test]
+    fn set_status_requires_text_or_clear() {
+        assert!(Cli::try_parse_from(["buzz", "users", "set-status"]).is_err());
+        assert!(
+            Cli::try_parse_from(["buzz", "users", "set-status", "--emoji", "🎶"]).is_err(),
+            "--emoji alone must not imply a status"
+        );
+        assert!(Cli::try_parse_from(["buzz", "users", "set-status", "--clear"]).is_ok());
+    }
+
     #[test]
     fn command_inventory_is_stable() {
         let expected_groups: Vec<&str> = vec![
@@ -1924,7 +1961,13 @@ mod tests {
         );
         assert_eq!(
             names(&cmd, "users"),
-            vec!["get", "presence", "set-presence", "set-profile"]
+            vec![
+                "get",
+                "presence",
+                "set-presence",
+                "set-profile",
+                "set-status"
+            ]
         );
         assert_eq!(
             names(&cmd, "workflows"),
@@ -2011,7 +2054,7 @@ mod tests {
             ("repos", 4),
             ("social", 7),
             ("upload", 1),
-            ("users", 4),
+            ("users", 5),
             ("workflows", 8),
         ];
 

crates/buzz-sdk/src/builders.rs

@@ -11,8 +11,8 @@ use buzz_core::{
         KIND_GIT_STATUS_CLOSED, KIND_GIT_STATUS_DRAFT, KIND_GIT_STATUS_MERGED,
         KIND_GIT_STATUS_OPEN, KIND_IA_ARCHIVE_REQUEST, KIND_IA_UNARCHIVE_REQUEST,
         KIND_MODERATION_BAN, KIND_MODERATION_RESOLVE_REPORT, KIND_MODERATION_TIMEOUT,
-        KIND_MODERATION_UNBAN, KIND_MODERATION_UNTIMEOUT, KIND_PRESENCE_UPDATE, KIND_WORKFLOW_DEF,
-        KIND_WORKFLOW_TRIGGER,
+        KIND_MODERATION_UNBAN, KIND_MODERATION_UNTIMEOUT, KIND_PRESENCE_UPDATE, KIND_USER_STATUS,
+        KIND_WORKFLOW_DEF, KIND_WORKFLOW_TRIGGER,
     },
     observer::{
         content_looks_like_nip44, OBSERVER_AGENT_TAG, OBSERVER_FRAME_CONTROL, OBSERVER_FRAME_TAG,
@@ -1580,6 +1580,22 @@ pub fn build_presence_update(status: &str) -> Result<EventBuilder, SdkError> {
     Ok(EventBuilder::new(Kind::Custom(KIND_PRESENCE_UPDATE as u16), status).tags(tags))
 }
 
+/// Build a NIP-38 user status event (kind 30315) on the `d:general` coordinate.
+///
+/// `text` becomes the event content and `emoji`, when non-blank, an
+/// `["emoji", ...]` tag; both are trimmed. Blank text with no emoji clears the
+/// status — kind 30315 is parameterized-replaceable, so an event carrying
+/// neither is what clients read as "no status".
+pub fn build_user_status(text: &str, emoji: Option<&str>) -> Result<EventBuilder, SdkError> {
+    let text = text.trim();
+    check_content(text, 64 * 1024)?;
+    let mut tags = vec![tag(&["d", "general"])?];
+    if let Some(emoji) = emoji.map(str::trim).filter(|e| !e.is_empty()) {
+        tags.push(tag(&["emoji", emoji])?);
+    }
+    Ok(EventBuilder::new(Kind::Custom(KIND_USER_STATUS as u16), text).tags(tags))
+}
+
 // ---------------------------------------------------------------------------
 // Community moderation commands (kinds 9040–9044).
 //
@@ -3391,6 +3407,53 @@ mod tests {
         assert!(matches!(err, SdkError::InvalidInput(_)));
     }
 
+    // ── build_user_status ─────────────────────────────────────────────────────
+
+    #[test]
+    fn user_status_carries_text_and_emoji_on_d_general() {
+        let ev = sign(build_user_status("shipping the CLI", Some("🚀")).unwrap());
+        assert_eq!(ev.kind.as_u16(), 30315);
+        assert_eq!(ev.content, "shipping the CLI");
+        assert_eq!(tag_values(&ev, "d"), vec!["general"]);
+        assert_eq!(tag_values(&ev, "emoji"), vec!["🚀"]);
+    }
+
+    #[test]
+    fn user_status_trims_text_and_emoji() {
+        let ev = sign(build_user_status("  heads down  ", Some("  🎧 ")).unwrap());
+        assert_eq!(ev.content, "heads down");
+        assert_eq!(tag_values(&ev, "emoji"), vec!["🎧"]);
+    }
+
+    #[test]
+    fn user_status_omits_blank_emoji_tag() {
+        let ev = sign(build_user_status("on call", Some("   ")).unwrap());
+        assert_eq!(ev.content, "on call");
+        assert!(tag_values(&ev, "emoji").is_empty());
+    }
+
+    #[test]
+    fn user_status_keeps_emoji_when_text_is_blank() {
+        let ev = sign(build_user_status("", Some("🎶")).unwrap());
+        assert_eq!(ev.content, "");
+        assert_eq!(tag_values(&ev, "emoji"), vec!["🎶"]);
+    }
+
+    #[test]
+    fn user_status_clear_shape_is_empty_content_and_d_tag_only() {
+        let ev = sign(build_user_status("", None).unwrap());
+        assert_eq!(ev.kind.as_u16(), 30315);
+        assert_eq!(ev.content, "");
+        assert_eq!(tag_values(&ev, "d"), vec!["general"]);
+        assert_eq!(ev.tags.len(), 1);
+    }
+
+    #[test]
+    fn user_status_rejects_oversize_text() {
+        let err = build_user_status(&"x".repeat(64 * 1024 + 1), None).unwrap_err();
+        assert!(matches!(err, SdkError::ContentTooLarge { .. }));
+    }
+
     // ── build_git_pull_request / build_git_pr_update ──────────────────────────
 
     fn pr_repo() -> GitRepoCoord {