Update to Noweir Market Data

{
  "description": "Use when the user provides portfolio holdings or weights and wants concentration, overlap, sector exposure, or position-risk context. The plugin does not read brokerage accounts.",
  "included_files": [
    {
      "relative_path": "agents/openai.yaml",
      "size_in_bytes": 517
    }
  ],
  "name": "portfolio-concentration-check",
  "skill_md_contents": "---\nname: portfolio-concentration-check\ndescription: Use when the user provides portfolio holdings or weights and wants concentration, overlap, sector exposure, or position-risk context. The plugin does not read brokerage accounts.\n---\n\n# Portfolio Concentration Check\n\nThe user's explicit instructions take precedence over this skill.\n\nReview concentration only from holdings/weights the user supplies.\n\nWorkflow:\n1. Do not assume access to brokerage accounts or hidden portfolio data.\n2. Ask for ticker weights if they are missing.\n3. Use `compare_stocks` to enrich the supplied holdings with market/volatility/fundamental context.\n4. Compute simple concentration observations from the user-provided weights:\n   - largest positions\n   - top-3/top-5 share\n   - sector/theme clustering when evident\n5. If ETF look-through holdings are not provided, state that look-through concentration cannot be calculated from this plugin alone.\n6. Do not infer the user's risk tolerance or prescribe a target allocation.\n\n## Shared boundaries\n\n- Use only tool-returned values for numerical market/fundamental claims.\n- Do not invent missing data.\n- Treat Yahoo/yfinance data as secondary market-data/provider metadata and not guaranteed exchange-grade real time.\n- Preserve timestamps and price-type/session distinctions when relevant.\n- The plugin is read-only and cannot place trades, move money, modify brokerage accounts, or execute transactions.\n"
}