diff --git a/library/tools/describe.factor b/library/tools/describe.factor
index 5b0520b159..a58f689d5a 100644
--- a/library/tools/describe.factor
+++ b/library/tools/describe.factor
@@ -8,30 +8,32 @@ words ;
 GENERIC: sheet ( obj -- sheet )
 
 : slot-sheet ( obj -- sheet )
-    dup class "slots" word-prop
-    dup [ third ] map -rot
-    [ first slot ] map-with
-    2array ;
+    dup class "slots" word-prop [
+        dup third -rot first slot 2array
+    ] map-with ;
 
 M: object sheet ( obj -- sheet ) slot-sheet ;
 
+M: tuple sheet ( tuple -- sheet )
+    dup slot-sheet swap delegate [ 1 tail ] unless ;
+
 M: sequence summary
     [ dup length # " element " % class word-name % ] "" make ;
 
-M: quotation sheet 1array ;
+: sequence-sheet [ 1array ] map ;
 
-M: vector sheet 1array ;
-
-M: array sheet 1array ;
+M: quotation sheet sequence-sheet ;
+M: vector sheet sequence-sheet ;
+M: array sheet sequence-sheet ;
 
 M: hashtable summary
     "a hashtable storing " swap hash-size number>string
     " keys" append3 ;
 
-M: hashtable sheet hash>alist flip ;
+M: hashtable sheet hash>alist ;
 
 : sheet. ( sheet -- )
-    flip dup empty? [
+    dup empty? [
         drop
     ] [
         dup first length 1 =
diff --git a/library/tools/inspector.factor b/library/tools/inspector.factor
index 3909d31bac..d89865ad04 100644
--- a/library/tools/inspector.factor
+++ b/library/tools/inspector.factor
@@ -1,16 +1,14 @@
 ! Copyright (C) 2005 Slava Pestov.
 ! See http://factor.sf.net/license.txt for BSD license.
 IN: inspector
-USING: arrays generic io kernel listener memory namespaces
+USING: arrays generic io kernel listener math memory namespaces
 prettyprint sequences words ;
 
 SYMBOL: inspector-slots
 
 : sheet-numbers ( sheet -- sheet )
-    dup empty? [
-        dup first length >array 1array swap append
-        dup peek inspector-slots set
-    ] unless ;
+    dup [ peek ] map inspector-slots set
+    dup length [ 1+ add* ] 2map ;
 
 SYMBOL: inspector-stack
 
@@ -40,9 +38,8 @@ SYMBOL: inspector-stack
     ] listener ;
 
 : inspect ( obj -- )
-    #! Start an inspector if its not already running.
     inspector-stack get [ (inspect) ] [ inspector ] if ;
 
-: go ( n -- ) inspector-slots get nth (inspect) ;
+: go ( n -- ) 1- inspector-slots get nth (inspect) ;
 
 : up ( -- ) inspector-stack get dup pop* pop (inspect) ;