Update to Shadowfolio Backtest

{
  "description": "Save a backtested strategy and follow it as a hypothetical shadow portfolio updated after every US market close, list saved strategies, show one, share its record or delete it. Use when the user wants to paper-trade, forward-test or check on a strategy they saved with Shadowfolio.",
  "included_files": [
    {
      "relative_path": "agents/openai.yaml",
      "size_in_bytes": 492
    },
    {
      "relative_path": "assets/logo.png",
      "size_in_bytes": 28937
    }
  ],
  "name": "track-a-strategy",
  "skill_md_contents": "---\nname: track-a-strategy\ndescription: Save a backtested strategy and follow it as a hypothetical shadow portfolio updated after every US market close, list saved strategies, show one, share its record or delete it. Use when the user wants to paper-trade, forward-test or check on a strategy they saved with Shadowfolio.\n---\n\nUse this skill when the user wants to keep a strategy going from today, or comes back to ask how a saved strategy is doing. The user's explicit instructions always come first.\n\n## Flow\n\n1. `save_strategy` takes the same rules that were backtested and starts a hypothetical 10,000 shadow portfolio from the latest close. It is kept under the user's anonymous ChatGPT ID; there is no account.\n2. After every US market close the portfolio is updated from that day's closing prices.\n3. `list_my_strategies` lists each saved strategy with its number, name and return since it was saved, next to its benchmark over the same days.\n4. `show_strategy` shows one strategy by number or name: its forward-tracking record since saving (return, max drawdown, benchmark), its current simulated holdings and recent simulated trades, and the backtest from when it was saved.\n5. `create_share_link` creates, or returns the existing, public link to a page with that strategy's rules and hypothetical record, when the user asks to share it.\n6. `delete_strategy` stops tracking one strategy and deletes its record and share link; `delete_my_data` deletes everything of this user. Both are permanent.\n\n## Scope\n\n- Every figure is hypothetical: no real money, no broker connection and no trades are involved.\n- Shadowfolio doesn't say whether a strategy is good or should be followed, and doesn't suggest changes on its own.\n- Each result ends with a summary suitable to show the user; the card shows the chart and holdings.\n"
}