feat: add killport function and improve skill file loading in ai_commit

Author: fbosch

.config/fish/functions/ai_commit.fish

@@ -51,13 +51,20 @@ Branch: $branch_name" >$temp_prompt
     if test -n "$ticket_number"
         echo "Ticket: $ticket_number" >>$temp_prompt
     end
-    set skill_file "$HOME/.config/opencode/skills/ai-commit/SKILL.md"
+    set -l skill_dir "$HOME/.config/opencode/skills/ai-commit"
+    set -l skill_file "$skill_dir/SKILL.md"
     if not test -f "$skill_file"
-        gum style --foreground 1 " Skill not found: $skill_file"
+        set skill_file "$skill_dir/skill.md"
+    end
+    if not test -f "$skill_file"
+        gum style --foreground 1 " Skill not found: $skill_dir/SKILL.md"
         rm -f $temp_prompt $temp_diff
         return 1
     end
-    set skill_body (sed '1,/^---$/d' "$skill_file" | sed '1,/^---$/d')
+    set -l skill_body (sed '1,/^---$/d' "$skill_file" | sed '1,/^---$/d')
+    if test -z "$skill_body"
+        set skill_body (cat "$skill_file")
+    end
     echo "
 $skill_body
 

.config/fish/functions/killport.fish

@@ -0,0 +1,79 @@
+function killport --description 'Kill the process listening on a specific port'
+    set -l options h/help f/force
+    argparse -n killport $options -- $argv
+    or return
+
+    if set -q _flag_help
+        echo "Usage: killport [OPTIONS] PORT"
+        echo "Kill the process listening on the specified port"
+        echo ""
+        echo "Options:"
+        echo "  -h, --help   Show this help message"
+        echo "  -f, --force  Skip confirmation prompt"
+        return 0
+    end
+
+    if test (count $argv) -ne 1
+        echo "killport: exactly one port number required" >&2
+        echo "Usage: killport [OPTIONS] PORT" >&2
+        return 1
+    end
+
+    set -l port $argv[1]
+
+    # Validate port number
+    if not string match -qr '^\d+$' -- $port
+        echo "killport: invalid port number '$port'" >&2
+        return 1
+    end
+
+    if test $port -lt 1 -o $port -gt 65535
+        echo "killport: port must be between 1 and 65535" >&2
+        return 1
+    end
+
+    # Find process using the port
+    set -l pid (lsof -ti :$port 2>/dev/null)
+
+    if test -z "$pid"
+        echo "killport: no process found listening on port $port" >&2
+        return 1
+    end
+
+    # Get process details
+    set -l process_info (ps -p $pid -o comm= 2>/dev/null)
+    
+    if test -z "$process_info"
+        set process_info "Unknown"
+    end
+
+    # Confirm before killing (unless --force is set)
+    if not set -q _flag_force
+        if command -v gum >/dev/null
+            if not gum confirm "Kill process: $process_info [PID: $pid] on port $port?"
+                echo "Cancelled"
+                return 0
+            end
+        else
+            # Fallback to read if gum is not available
+            read -P "Kill process: $process_info [PID: $pid] on port $port? [y/N] " -l response
+            if not string match -qir '^y(es)?$' -- $response
+                echo "Cancelled"
+                return 0
+            end
+        end
+    end
+
+    # Kill the process
+    if kill $pid 2>/dev/null
+        echo "Killed: $process_info [PID: $pid] on port $port"
+    else
+        # Try with force if regular kill failed
+        if kill -9 $pid 2>/dev/null
+            echo "Force killed: $process_info [PID: $pid] on port $port"
+        else
+            echo "killport: failed to kill PID $pid" >&2
+            return 1
+        end
+    end
+end