diff --git a/src/mir/builder/control_flow/joinir/routing.rs b/src/mir/builder/control_flow/joinir/routing.rs
index a6609045..09c0dc3a 100644
--- a/src/mir/builder/control_flow/joinir/routing.rs
+++ b/src/mir/builder/control_flow/joinir/routing.rs
@@ -80,10 +80,13 @@ impl MirBuilder {
                 // Phase 170-A-1: Enable JsonParserBox methods for JoinIR routing
                 "JsonParserBox._trim/1" => true,
                 "JsonParserBox._skip_whitespace/2" => true,
-                "JsonParserBox._match_literal/2" => true,
+                "JsonParserBox._match_literal/3" => true,  // Phase 182: Fixed arity (s, pos, literal)
                 "JsonParserBox._parse_string/2" => true,
                 "JsonParserBox._parse_array/2" => true,
                 "JsonParserBox._parse_object/2" => true,
+                // Phase 182: Add simple loop methods
+                "JsonParserBox._parse_number/2" => true,  // P2 Break (s, pos)
+                "JsonParserBox._atoi/1" => true,          // P2 Break (s)
                 // Phase 170-A-1: Test methods (simplified versions)
                 "TrimTest.trim/1" => true,
                 "Main.trim/1" => true,  // Phase 171-fix: Main box variant