diff --git a/packages/blackbox/src/blackbox/models.py b/packages/blackbox/src/blackbox/models.py
index 882d950..cc88779 100644
--- a/packages/blackbox/src/blackbox/models.py
+++ b/packages/blackbox/src/blackbox/models.py
@@ -195,52 +195,58 @@ class SessionDigest:
 # Codeflash plugin detection
 # ---------------------------------------------------------------------------
 
-CODEFLASH_AGENT_PREFIXES = (
-    "codeflash",
-    "codeflash-python",
-    "codeflash-deep",
-    "codeflash-cpu",
-    "codeflash-memory",
-    "codeflash-async",
-    "codeflash-structure",
-    "codeflash-setup",
-    "codeflash-scan",
-    "codeflash-ci",
-    "codeflash-pr-prep",
-    "codeflash-researcher",
-    "codeflash-review",
-    "codeflash-javascript",
-    "codeflash-js-deep",
-    "codeflash-js-cpu",
-    "codeflash-js-memory",
-    "codeflash-js-async",
-    "codeflash-js-structure",
-    "codeflash-js-bundle",
-    "codeflash-js-setup",
-    "codeflash-js-scan",
-    "codeflash-js-ci",
-    "codeflash-js-pr-prep",
-    "codeflash-java",
-    "codeflash-java-deep",
-    "codeflash-java-cpu",
-    "codeflash-java-memory",
-    "codeflash-java-async",
-    "codeflash-java-structure",
-    "codeflash-java-setup",
-    "codeflash-java-scan",
-    "codeflash-java-ci",
-    "codeflash-java-pr-prep",
+CODEFLASH_AGENT_PREFIXES = frozenset(
+    {
+        "codeflash",
+        "codeflash-python",
+        "codeflash-deep",
+        "codeflash-cpu",
+        "codeflash-memory",
+        "codeflash-async",
+        "codeflash-structure",
+        "codeflash-setup",
+        "codeflash-scan",
+        "codeflash-ci",
+        "codeflash-pr-prep",
+        "codeflash-researcher",
+        "codeflash-review",
+        "codeflash-javascript",
+        "codeflash-js-deep",
+        "codeflash-js-cpu",
+        "codeflash-js-memory",
+        "codeflash-js-async",
+        "codeflash-js-structure",
+        "codeflash-js-bundle",
+        "codeflash-js-setup",
+        "codeflash-js-scan",
+        "codeflash-js-ci",
+        "codeflash-js-pr-prep",
+        "codeflash-java",
+        "codeflash-java-deep",
+        "codeflash-java-cpu",
+        "codeflash-java-memory",
+        "codeflash-java-async",
+        "codeflash-java-structure",
+        "codeflash-java-setup",
+        "codeflash-java-scan",
+        "codeflash-java-ci",
+        "codeflash-java-pr-prep",
+    }
 )
 
-CODEFLASH_SKILLS = (
-    "codeflash-optimize",
-    "memray-profiling",
+CODEFLASH_SKILLS = frozenset(
+    {
+        "codeflash-optimize",
+        "memray-profiling",
+    }
 )
 
-CODEFLASH_COMMANDS = (
-    "codex-review",
-    "codex-setup",
-    "codex-status",
+CODEFLASH_COMMANDS = frozenset(
+    {
+        "codex-review",
+        "codex-setup",
+        "codex-status",
+    }
 )