diff --git a/assistant_resources.py b/assistant_resources.py
new file mode 100644
index 0000000..424bc0f
--- /dev/null
+++ b/assistant_resources.py
@@ -0,0 +1,76 @@
+"""Registry describing files the natural-language assistant can modify."""
+from __future__ import annotations
+
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Dict, List
+
+BASE_DIR = Path(__file__).resolve().parent
+
+
+@dataclass(frozen=True)
+class Resource:
+    key: str
+    path: Path
+    description: str
+    kind: str  # e.g., "text" or "calendar"
+    keywords: List[str]
+
+
+RESOURCE_REGISTRY: Dict[str, Resource] = {
+    "shopping_list": Resource(
+        key="shopping_list",
+        path=BASE_DIR / "shopping_list.txt",
+        description="Items to purchase on the next store run.",
+        kind="text",
+        keywords=["buy", "purchase", "shop", "grocery", "groceries"],
+    ),
+    "home_todo": Resource(
+        key="home_todo",
+        path=BASE_DIR / "home_todo.txt",
+        description="Household maintenance or chores.",
+        kind="text",
+        keywords=["home", "house", "chore", "laundry", "clean"],
+    ),
+    "work_todo": Resource(
+        key="work_todo",
+        path=BASE_DIR / "work_todo.txt",
+        description="Tasks related to your job or ongoing projects.",
+        kind="text",
+        keywords=["work", "office", "project", "client", "email","gavilan", "efw", ],
+    ),
+    "school_courses": Resource(
+        key="school_courses",
+        path=BASE_DIR / "school_courses.txt",
+        description="Assignments or study notes for school work.",
+        kind="text",
+        keywords=["school", "class", "course", "study", "assignment"],
+    ),
+    "ideas": Resource(
+        key="ideas",
+        path=BASE_DIR / "ideas.txt",
+        description="Random ideas, inspiration, or brainstorming notes.",
+        kind="text",
+        keywords=["idea", "brainstorm", "concept", "inspiration"],
+    ),
+    "calendar": Resource(
+        key="calendar",
+        path=BASE_DIR / "calendar.ics",
+        description="Time-based events saved in an iCalendar file.",
+        kind="calendar",
+        keywords=["meeting", "schedule", "calendar", "appointment", "event"],
+    ),
+}
+
+
+def resource_descriptions() -> str:
+    """Return a human-readable summary of supported resources."""
+    lines = [
+        "The assistant can update the following resources:",
+    ]
+    for res in RESOURCE_REGISTRY.values():
+        lines.append(f"- {res.key}: {res.description} (file: {res.path.name})")
+    return "\n".join(lines)
+
+
+__all__ = ["RESOURCE_REGISTRY", "resource_descriptions", "Resource"]
diff --git a/calendar.ics b/calendar.ics
new file mode 100644
index 0000000..0dbc33b
--- /dev/null
+++ b/calendar.ics
@@ -0,0 +1,4 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//PocketFlow//Assistant//EN
+END:VCALENDAR
diff --git a/home_todo.txt b/home_todo.txt
new file mode 100644
index 0000000..e69de29
diff --git a/shopping_assistant.py b/shopping_assistant.py
new file mode 100644
index 0000000..064573d
--- /dev/null
+++ b/shopping_assistant.py
@@ -0,0 +1,248 @@
+"""Natural-language assistant that routes commands to specific personal files."""
+from __future__ import annotations
+
+import re
+from datetime import datetime, timedelta, date, timezone
+from pathlib import Path
+from typing import Any, Dict, Optional
+
+from pocketflow import Flow, Node
+
+from assistant_resources import RESOURCE_REGISTRY, resource_descriptions
+from utils.call_llm import call_llm_json
+
+COMMAND_PROMPT = f"""
+You convert a user's short reminder into a JSON command so an agent can update files.
+{resource_descriptions()}
+
+Always respond with a JSON object using this schema:
+{{
+  "action": "append",
+  "target": "<one of: {', '.join(RESOURCE_REGISTRY.keys())}>",
+  "entry": "<text to append or store>",
+  "metadata": {{   # optional object for structured info (e.g., calendar dates)
+     ...
+  }}
+}}
+If you cannot determine a valid target, respond with:
+{{"action": "unknown", "target": "", "entry": "", "metadata": {{}}}}
+Make entries concise; when the target is calendar include any useful scheduling details inside metadata.
+User reminder: {{command}}
+""".strip()
+
+REMOVE_PREFIXES = [
+    "remember to",
+    "please",
+    "don't forget to",
+    "dont forget to",
+    "remind me to",
+    "i need to",
+    "i should",
+]
+
+
+class InterpretCommandNode(Node):
+    """Use an LLM (with fallback heuristics) to map a reminder to an actionable command."""
+
+    def prep(self, shared: Dict[str, Any]) -> str:
+        return shared["command"]
+
+    def exec(self, command: str) -> Dict[str, Any]:
+        try:
+            return call_llm_json(COMMAND_PROMPT.format(command=command))
+        except Exception:
+            return self._fallback(command)
+
+    def post(self, shared: Dict[str, Any], prep_result: str, exec_result: Dict[str, Any]) -> str:
+        shared["parsed_action"] = exec_result
+        return exec_result.get("action", "unknown")
+
+    @staticmethod
+    def _fallback(command: str) -> Dict[str, Any]:
+        lowered = command.lower()
+        target_key: Optional[str] = None
+        highest_score = 0
+        for key, resource in RESOURCE_REGISTRY.items():
+            score = sum(1 for kw in resource.keywords if kw in lowered)
+            if score > highest_score:
+                highest_score = score
+                target_key = key
+        if not target_key:
+            return {"action": "unknown", "target": "", "entry": "", "metadata": {}}
+
+        entry = InterpretCommandNode._extract_entry(command, target_key)
+        metadata: Dict[str, Any] = {}
+        if target_key == "calendar":
+            date_match = re.search(r"(\d{4}-\d{2}-\d{2})", command)
+            if date_match:
+                metadata["date"] = date_match.group(1)
+        return {
+            "action": "append",
+            "target": target_key,
+            "entry": entry.strip(),
+            "metadata": metadata,
+        }
+
+    @staticmethod
+    def _extract_entry(command: str, target_key: str) -> str:
+        cleaned = InterpretCommandNode._remove_prefixes(command).strip()
+        lowered = cleaned.lower()
+        if target_key == "shopping_list":
+            match = re.search(r"buy\s+([a-zA-Z0-9\s]+)", lowered)
+            if match:
+                return match.group(1)
+        if target_key in {"home_todo", "work_todo", "school_courses"}:
+            for verb in ("finish", "do", "complete", "send", "write", "study"):
+                if lowered.startswith(f"{verb} "):
+                    return cleaned
+        if target_key == "ideas":
+            return cleaned
+        if target_key == "calendar":
+            return cleaned
+        return cleaned
+
+    @staticmethod
+    def _remove_prefixes(command: str) -> str:
+        lowered = command.lower()
+        for prefix in REMOVE_PREFIXES:
+            if lowered.startswith(prefix):
+                return command[len(prefix) :].strip()
+        return command
+
+
+class AppendEntryNode(Node):
+    """Append entries to the resource indicated by the interpreter."""
+
+    def prep(self, shared: Dict[str, Any]) -> Dict[str, Any]:
+        return shared["parsed_action"]
+
+    def exec(self, action: Dict[str, Any]) -> str:
+        target_key = action.get("target", "")
+        entry = (action.get("entry") or "").strip()
+        metadata = action.get("metadata") or {}
+
+        if target_key not in RESOURCE_REGISTRY:
+            raise ValueError(f"Unsupported target '{target_key}'")
+        if not entry:
+            raise ValueError("Empty entry cannot be appended")
+
+        resource = RESOURCE_REGISTRY[target_key]
+        if resource.kind == "text":
+            self._append_to_text(resource.path, entry)
+        elif resource.kind == "calendar":
+            self._append_to_calendar(resource.path, entry, metadata)
+        else:
+            raise ValueError(f"Unknown resource kind '{resource.kind}'")
+        return f"{target_key}:{entry}"
+
+    def post(self, shared: Dict[str, Any], prep_result: Dict[str, Any], exec_result: str) -> None:
+        shared.setdefault("updates", []).append(exec_result)
+
+    @staticmethod
+    def _append_to_text(path: Path, entry: str) -> None:
+        path.parent.mkdir(parents=True, exist_ok=True)
+        with path.open("a", encoding="utf-8") as fh:
+            fh.write(f"{entry}\n")
+
+    @staticmethod
+    def _append_to_calendar(path: Path, summary: str, metadata: Dict[str, Any]) -> None:
+        path.parent.mkdir(parents=True, exist_ok=True)
+        if not path.exists():
+            path.write_text("BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//PocketFlow//Assistant//EN\nEND:VCALENDAR\n", encoding="utf-8")
+
+        content = path.read_text(encoding="utf-8").splitlines()
+        if not content or content[-1].strip() != "END:VCALENDAR":
+            content.append("END:VCALENDAR")
+
+        event_lines = AppendEntryNode._build_event(summary, metadata)
+        # insert before END:VCALENDAR
+        end_index = len(content) - 1
+        content = content[:end_index] + event_lines + content[end_index:]
+        path.write_text("\n".join(content) + "\n", encoding="utf-8")
+
+    @staticmethod
+    def _build_event(summary: str, metadata: Dict[str, Any]) -> list[str]:
+        now = datetime.now(timezone.utc)
+        dtstamp = now.strftime("%Y%m%dT%H%M%SZ")
+        dtstart, dtend = AppendEntryNode._resolve_calendar_times(metadata, now)
+        description = metadata.get("notes") or summary
+        return [
+            "BEGIN:VEVENT",
+            f"DTSTAMP:{dtstamp}",
+            f"SUMMARY:{summary}",
+            f"DTSTART;VALUE=DATE:{dtstart}",
+            f"DTEND;VALUE=DATE:{dtend}",
+            f"DESCRIPTION:{description}",
+            "END:VEVENT",
+        ]
+
+    @staticmethod
+    def _resolve_calendar_times(metadata: Dict[str, Any], fallback: datetime) -> tuple[str, str]:
+        start = AppendEntryNode._parse_date(metadata.get("date") or metadata.get("start"))
+        if start is None:
+            start = fallback.date()
+        end = AppendEntryNode._parse_date(metadata.get("end"))
+        if end is None:
+            end_date = start + timedelta(days=1)
+        else:
+            end_date = end
+        return start.strftime("%Y%m%d"), end_date.strftime("%Y%m%d")
+
+    @staticmethod
+    def _parse_date(value: Any) -> Optional[date]:
+        if not value:
+            return None
+        if isinstance(value, datetime):
+            return value.date()
+        try:
+            # Try ISO date first
+            dt = datetime.fromisoformat(str(value))
+            return dt.date()
+        except ValueError:
+            patterns = ["%Y-%m-%d", "%m/%d/%Y", "%b %d %Y"]
+            text = str(value)
+            for pattern in patterns:
+                try:
+                    return datetime.strptime(text, pattern).date()
+                except ValueError:
+                    continue
+        return None
+
+
+class UnknownCommandNode(Node):
+    def prep(self, shared: Dict[str, Any]) -> Dict[str, Any]:
+        return shared.get("parsed_action", {})
+
+    def exec(self, action: Dict[str, Any]) -> None:
+        raise ValueError(f"Unsupported command: {action}")
+
+
+def build_flow() -> Flow:
+    interpreter = InterpretCommandNode()
+    append_entry = AppendEntryNode()
+    unknown = UnknownCommandNode()
+
+    flow = Flow(start=interpreter)
+    interpreter - "append" >> append_entry
+    interpreter - "unknown" >> unknown
+    return flow
+
+
+def handle_command(command: str) -> Dict[str, Any]:
+    shared: Dict[str, Any] = {"command": command}
+    flow = build_flow()
+    try:
+        flow.run(shared)
+    except ValueError as exc:
+        shared["error"] = str(exc)
+    return shared
+
+
+if __name__ == "__main__":
+    import argparse
+
+    parser = argparse.ArgumentParser(description="Process a reminder and update the relevant file")
+    parser.add_argument("command", help="Reminder text, e.g. 'email client tomorrow about proposal'")
+    args = parser.parse_args()
+    result = handle_command(args.command)
+    print(result)
diff --git a/shopping_list.txt b/shopping_list.txt
new file mode 100644
index 0000000..0031480
--- /dev/null
+++ b/shopping_list.txt
@@ -0,0 +1,2 @@
+apples
+cheese
diff --git a/utils/call_llm.py b/utils/call_llm.py
new file mode 100644
index 0000000..cb755af
--- /dev/null
+++ b/utils/call_llm.py
@@ -0,0 +1,54 @@
+"""Minimal OpenAI Chat Completions helper used by Pocket Flow demos."""
+from __future__ import annotations
+
+import json
+from typing import Iterable, Optional
+
+try:
+    from openai import OpenAI
+except ImportError:  # pragma: no cover - optional dependency
+    OpenAI = None  # type: ignore[misc,assignment]
+
+try:
+    from llm_secrets import OPENAI_API_KEY
+except ImportError as exc:
+    raise ImportError("Create llm_secrets.py with OPENAI_API_KEY before calling call_llm") from exc
+
+_client: Optional[OpenAI] = None
+
+
+def _get_client() -> OpenAI:
+    global _client
+    if OpenAI is None:  # type: ignore[truthy-function]
+        raise RuntimeError("Install the 'openai' package to use call_llm")
+    if _client is None:
+        if not OPENAI_API_KEY or OPENAI_API_KEY == "REPLACE_WITH_YOUR_KEY":
+            raise ValueError("Set OPENAI_API_KEY in llm_secrets.py before calling call_llm")
+        _client = OpenAI(api_key=OPENAI_API_KEY)
+    return _client
+
+
+def call_llm(messages: Iterable[dict] | str, model: str = "gpt-4o-mini") -> str:
+    """Send a prompt or list of chat messages to OpenAI and return the text reply."""
+    client = _get_client()
+    chat_messages = (
+        [{"role": "user", "content": messages}]
+        if isinstance(messages, str)
+        else list(messages)
+    )
+    response = client.chat.completions.create(model=model, messages=chat_messages)
+    message = response.choices[0].message.content or ""
+    return message.strip()
+
+
+def call_llm_json(messages: Iterable[dict] | str, model: str = "gpt-4o-mini") -> dict:
+    """Convenience wrapper that expects a JSON object in the response."""
+    raw = call_llm(messages, model=model)
+    start = raw.find("{")
+    end = raw.rfind("}")
+    if start == -1 or end == -1:
+        raise ValueError(f"LLM response does not contain JSON: {raw}")
+    return json.loads(raw[start : end + 1])
+
+
+__all__ = ["call_llm", "call_llm_json"]
diff --git a/work_todo.txt b/work_todo.txt
new file mode 100644
index 0000000..a32479f
--- /dev/null
+++ b/work_todo.txt
@@ -0,0 +1 @@
+gavilan: call ted
diff --git a/x b/x
new file mode 100644
index 0000000..dc9444f
--- /dev/null
+++ b/x
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+python3 "$(dirname "$0")/shopping_assistant.py" "$@"