feat: Created a CodeRabbit-style code-reviewer agent

assets/agents/file-reviewer/tools.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+# shellcheck disable=SC1090
+source "$LLM_PROMPT_UTILS_FILE"
+source "$LLM_ROOT_DIR/agents/.shared/utils.sh"
+
+# @env LLM_OUTPUT=/dev/stdout
+# @env LLM_AGENT_VAR_PROJECT_DIR=.
+# @describe File reviewer tools for single-file code review
+
+_project_dir() {
+  local dir="${LLM_AGENT_VAR_PROJECT_DIR:-.}"
+  (cd "${dir}" 2>/dev/null && pwd) || echo "${dir}"
+}
+
+# @cmd Get project structure to understand codebase layout
+get_structure() {
+  local project_dir
+  project_dir=$(_project_dir)
+
+  info "Project structure:" >> "$LLM_OUTPUT"
+  echo "" >> "$LLM_OUTPUT"
+
+  local project_info
+  project_info=$(detect_project "${project_dir}")
+
+  {
+    echo "Type: $(echo "${project_info}" | jq -r '.type')"
+    echo ""
+    get_tree "${project_dir}" 2
+  } >> "$LLM_OUTPUT"
+}