diff --git a/hive-c0re/src/agent_config/tool_groups.rs b/hive-c0re/src/agent_config/tool_groups.rs
index ae7ccc6e..c1379dd8 100644
--- a/hive-c0re/src/agent_config/tool_groups.rs
+++ b/hive-c0re/src/agent_config/tool_groups.rs
@@ -50,12 +50,14 @@ fn read_from(path: &Path) -> std::io::Result<BTreeMap<String, Vec<String>>> {
     Ok(map)
 }
 
-/// True if `name` matches a recognised [`hive_sh4re::permissions::ToolGroup`]
-/// exactly (same comparison [`validate_groups`] uses).
+/// True if `name` matches a recognised [`hive_sh4re::permissions::ToolGroup`],
+/// case-insensitive (same comparison [`validate_groups`] uses, and the same
+/// comparison `capabilities::is_known` uses — a hand-edited `"Meta"` in the
+/// file should round-trip, not get pruned).
 fn is_known(name: &str) -> bool {
     hive_sh4re::permissions::ToolGroup::ALL
         .iter()
-        .any(|g| <&str>::from(*g) == name)
+        .any(|g| name.eq_ignore_ascii_case(<&str>::from(*g)))
 }
 
 /// Drop any tool-group string in `map` that isn't a recognised