repo-search: don't tell the caller to raise --limit once the forge has already clamped

docs/tools/forge.md

@@ -345,9 +345,14 @@ to discover valid label names before triaging or to audit the label set.
   with the real remaining count when it's present (`… 50 of 187 shown …
   137 more exist`); without it (an older forge, a stripping proxy) it
   falls back to the cruder `count == limit` heuristic, same
-  trust-the-trailer-not-the-row-count principle as `list` above. Either
-  way it can't tell "doesn't exist" from "you lack permission to see
-  it" — both render as an absent row with no signal either way — and
-  it matches repo **name** only, not owner, so there's no way to
-  enumerate an org's repos through this verb.
+  trust-the-trailer-not-the-row-count principle as `list` above. Unlike
+  `list`, this verb has no `--page` — so once the forge's own page cap
+  has clamped the result (`count < limit`), raising `--limit` again asks
+  for the same clamp and gets nothing new; the warning says to narrow
+  `--query` instead in that case, and only suggests raising `--limit`
+  while still under the cap. Either way it can't tell "doesn't exist"
+  from "you lack permission to see it" — both render as an absent row
+  with no signal either way — and it matches repo **name** only, not
+  owner, so there's no way to enumerate an org's repos through this
+  verb.
 <!-- vale write-good.Passive = YES -->

hive-forge/src/verbs/repo_search.rs

@@ -155,10 +155,23 @@ fn truncation_warning(total: Option<u64>, count: u64, limit: u64) -> Option<Stri
         Some(total) => {
             let remaining = total.saturating_sub(count);
             (remaining > 0).then(|| {
+                // `count < limit` means the forge clamped the page below what
+                // was asked for — raising `--limit` again asks for the same
+                // clamp and gets the same `count` back. Unlike `list`, this
+                // verb has no `--page` to walk past the clamp with, so
+                // narrowing `--query` is the only remedy that can work once
+                // the server has capped the page. "raise --limit" only
+                // helps the other case: still under the cap, where asking
+                // for more actually serves more of it.
+                let remedy = if count < limit {
+                    "the forge capped this page at its own limit — narrow --query to see them"
+                } else {
+                    "raise --limit or narrow --query to see them"
+                };
                 format!(
                     "warning: {count} of {total} results shown — {remaining} more exist (the \
                      forge still silently drops any repo you lack permission to see, with no \
-                     signal either way); raise --limit or narrow --query to see them"
+                     signal either way); {remedy}"
                 )
             })
         }
@@ -194,6 +207,27 @@ mod tests {
         assert!(msg.contains("137 more"), "{msg}");
     }
 
+    #[test]
+    fn clamp_case_tells_the_caller_to_narrow_not_to_raise_limit() {
+        // `--limit` already exceeded the forge's own page cap here, so
+        // "raise --limit" is a dead end — only `--query` can still narrow
+        // the result set below the cap. (The bug argus caught: both
+        // branches used to say "raise --limit", which can't work once the
+        // server itself has clamped the page.)
+        let msg = truncation_warning(Some(187), 50, 400).expect("137 more exist");
+        assert!(msg.contains("narrow --query"), "{msg}");
+        assert!(!msg.contains("raise --limit"), "{msg}");
+    }
+
+    #[test]
+    fn under_the_cap_case_still_offers_raise_limit() {
+        // `count == limit` and both are under the forge's cap: asking for
+        // more can actually serve more, so "raise --limit" is live advice
+        // here, not a dead end.
+        let msg = truncation_warning(Some(187), 30, 30).expect("157 more exist");
+        assert!(msg.contains("raise --limit"), "{msg}");
+    }
+
     #[test]
     fn stays_quiet_once_the_total_is_accounted_for() {
         assert_eq!(truncation_warning(Some(30), 30, 30), None);