feat: support MCP bridge (#140)

Argcfile.sh

@@ -2,7 +2,7 @@
 set -e
 
 BIN_DIR=bin
-TMP_DIR="cache/tmp"
+TMP_DIR="cache/__tmp__"
 VENV_DIR=".venv"
 
 LANG_CMDS=( \
@@ -421,9 +421,8 @@ test-demo@tool() {
 # @cmd Test agents
 # @alias agent:test
 test@agent() {
-    tmp_dir="cache/tmp"
-    mkdir -p "$tmp_dir"
-    names_file="$tmp_dir/agents.txt"
+    mkdir -p "$TMP_DIR"
+    names_file="$TMP_DIR/agents.txt"
     argc list@agent > "$names_file"
     argc build@agent --names-file "$names_file"
     test-demo@agent
@@ -499,6 +498,12 @@ install() {
     fi
 }
 
+# @cmd Run mcp command
+# @arg args~[?`_choice_mcp_args`] The mcp command and arguments
+mcp() {
+    bash ./scripts/mcp.sh "$@"
+}
+
 # @cmd Create a boilplate tool script
 # @alias tool:create
 # @arg args~
@@ -671,6 +676,16 @@ _choice_agent_action() {
     argc generate-declarations@agent "$1" --oneline | sed "$expr"
 }
 
+_choice_mcp_args() {
+    if [[ "$ARGC_COMPGEN" -eq 1 ]]; then
+        args=( "${argc__positionals[@]}" )
+        args[-1]="$ARGC_LAST_ARG"
+        argc --argc-compgen generic scripts/mcp.sh mcp "${args[@]}"
+    else
+        :;
+    fi
+}
+
 _die() {
     echo "$*" >&2
     exit 1