diff --git a/.agents/skills/tcl-nslist/SKILL.md b/.agents/skills/tcl-nslist/SKILL.md
index c5484ea5..a59f1fe9 100644
--- a/.agents/skills/tcl-nslist/SKILL.md
+++ b/.agents/skills/tcl-nslist/SKILL.md
@@ -15,7 +15,10 @@ auto-loads the providing package when the namespace is not yet populated.
 ## Command
 
 Run from the repo root (`punk91` lives in `bin/`, so `bin/punk91` from the
-Bash tool; any punkshell kit works). Cost: sub-1s, no side effects.
+Bash tool; any punkshell kit works). `punk91` embeds Tcl 9.1; for
+Tcl-version-sensitive questions, or if punk91 is unavailable, use `punk905`
+(Tcl 9.0) or `punksys` (Tcl 8.6) with the same command line. Cost: sub-1s,
+no side effects.
 
     punk91 src script lib:developer/nslist ?-synopsis? ?-pathcommands? <nsglob>...
 
diff --git a/.agents/skills/tcl-whatis/SKILL.md b/.agents/skills/tcl-whatis/SKILL.md
index b83b8d27..9d1ca979 100644
--- a/.agents/skills/tcl-whatis/SKILL.md
+++ b/.agents/skills/tcl-whatis/SKILL.md
@@ -14,7 +14,10 @@ zipfs) is actually loaded.
 ## Command
 
 Run from the repo root (`punk91` lives in `bin/`, so `bin/punk91` from the
-Bash tool; any punkshell kit works). Cost: sub-1s, no side effects.
+Bash tool; any punkshell kit works). `punk91` embeds Tcl 9.1; for
+Tcl-version-sensitive questions, or if punk91 is unavailable, use `punk905`
+(Tcl 9.0) or `punksys` (Tcl 8.6) with the same command line. Cost: sub-1s,
+no side effects.
 
     punk91 src script lib:developer/whatis ?-body? ?-doc? <command> ?subcommand?...
 
diff --git a/.claude/skills/tcl-nslist/SKILL.md b/.claude/skills/tcl-nslist/SKILL.md
index c5484ea5..a59f1fe9 100644
--- a/.claude/skills/tcl-nslist/SKILL.md
+++ b/.claude/skills/tcl-nslist/SKILL.md
@@ -15,7 +15,10 @@ auto-loads the providing package when the namespace is not yet populated.
 ## Command
 
 Run from the repo root (`punk91` lives in `bin/`, so `bin/punk91` from the
-Bash tool; any punkshell kit works). Cost: sub-1s, no side effects.
+Bash tool; any punkshell kit works). `punk91` embeds Tcl 9.1; for
+Tcl-version-sensitive questions, or if punk91 is unavailable, use `punk905`
+(Tcl 9.0) or `punksys` (Tcl 8.6) with the same command line. Cost: sub-1s,
+no side effects.
 
     punk91 src script lib:developer/nslist ?-synopsis? ?-pathcommands? <nsglob>...
 
diff --git a/.claude/skills/tcl-whatis/SKILL.md b/.claude/skills/tcl-whatis/SKILL.md
index b83b8d27..9d1ca979 100644
--- a/.claude/skills/tcl-whatis/SKILL.md
+++ b/.claude/skills/tcl-whatis/SKILL.md
@@ -14,7 +14,10 @@ zipfs) is actually loaded.
 ## Command
 
 Run from the repo root (`punk91` lives in `bin/`, so `bin/punk91` from the
-Bash tool; any punkshell kit works). Cost: sub-1s, no side effects.
+Bash tool; any punkshell kit works). `punk91` embeds Tcl 9.1; for
+Tcl-version-sensitive questions, or if punk91 is unavailable, use `punk905`
+(Tcl 9.0) or `punksys` (Tcl 8.6) with the same command line. Cost: sub-1s,
+no side effects.
 
     punk91 src script lib:developer/whatis ?-body? ?-doc? <command> ?subcommand?...