diff --git a/ROADMAP.adoc b/ROADMAP.adoc
index 98dc55b..c2f4a83 100644
--- a/ROADMAP.adoc
+++ b/ROADMAP.adoc
@@ -33,7 +33,8 @@
 == v0.3.0 - Extended Invariants
 
 * [x] Alexander polynomial display (`format_alexander`: sparse coeff map → t^n notation)
-* [x] HOMFLY-PT polynomial (on-demand via KnotTheory.jl, bounded to ≤12 crossings)
+* [x] HOMFLY-PT polynomial (on-demand via KnotTheory.jl, bounded to ≤15 crossings —
+  `HOMFLY_MAX_CROSSINGS`; the Kauffman-bracket skein recursion is genuinely 2^n)
 * [x] Knot signature (surfaced from Skein.jl schema to API and frontend)
 * [x] Knot determinant (surfaced to frontend; filterable in KRL and SQL)
 
diff --git a/server/serve.jl b/server/serve.jl
index 8a8a37b..99a67fd 100644
--- a/server/serve.jl
+++ b/server/serve.jl
@@ -1016,8 +1016,6 @@ function router(db::SkeinDB, sdb::SemanticIndexDB, static_dir::String,
 
     path == "/api/explain" && return handle_explain(db, sdb, params)
 
-    path == "/api/explain" && return handle_explain(db, sdb, params)
-
     m_knot = match(r"^/api/knots/(.+)$", path)
     !isnothing(m_knot) &&
         return handle_knot_detail(db, sdb, String(m_knot.captures[1]))