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Glama
JerBouma

Finance Toolkit

discovery

Read-onlyIdempotent

Surface market-wide ideas without a ticker: scan stock, ETF, index, forex, commodity and crypto lists, screeners, gainers and losers, sector performance, calendars, filings and news feeds.

Instructions

Market discovery (lists of stocks, ETFs, indices, currencies, commodities and cryptocurrencies, stock screener, biggest gainers and losers, most active stocks, sector and industry performance and P/E, earnings, IPO and stock split calendars, latest 8-K filings, insider trades and mergers, market news and press releases). No tickers or countries needed. The news and press release feeds (get_stock_news, get_press_releases, get_general_news, get_crypto_news, get_forex_news) are the latest articles across the whole market, not news about one company: each article names its ticker, but the feed cannot be narrowed to a ticker. The calendars and filings take start_date/end_date; the market-wide earnings calendar covers the coming week unless a range is given. Sector and industry performance and P/E take date= for one day's snapshot or sector=/industry= for a history (the last year unless start_date/end_date say otherwise); they average the companies of one exchange, exchange='NASDAQ' (default), 'NYSE' or 'AMEX', and performance is a decimal change (0.0125 is +1.25%). The stock screener ranks by market cap in US dollars ('Market Cap (USD)'; 'Market Cap' is in the listing's own currency) and returns every listing of a company unless primary_only=true; to screen by classification, use the Finance Database server. get_index_constituents lists the members of index='S&P 500', 'NASDAQ 100' or 'Dow Jones'.

Input Schema

NameRequiredDescriptionDefault
dateNoFor get_industry_pe, get_industry_performance, get_sector_pe, get_sector_performance: The date to retrieve a snapshot for, e.g. "2024-02-01". For get_insider_trading_latest: Only return the trades filed on this date.
pageNoFor get_delisted_stocks: The page of results to retrieve, starting at 0. For get_insider_trading_latest, get_mergers_acquisitions_latest, get_sec_filings_8k: The page number to retrieve.
indexNo"S&P 500", "NASDAQ 100" or "Dow Jones".S&P 500
limitNoThe rows to return, like head and tail: 5 for the first five, -5 for the last five (the most recent of a time series). A table with its periods as columns (financial statements, ratios) keeps its first or last periods instead. For ETF holdings the largest (or, negative, the smallest) by weight, and for a list (e.g. news or a screener) its length. Leave unset to use the default of the indicator you selected. Defaults are 100 for get_crypto_news, get_delisted_stocks, get_forex_news, get_general_news, get_insider_trading_latest, get_mergers_acquisitions_latest, get_press_releases, get_sec_filings_8k, get_stock_news; 1000 for get_stock_screener.
pagesNoThe number of pages to collect, each page is a separate API call, e.g. pages=5 makes 5 calls.
is_etfNoWhether to restrict the screen to ETFs or to exclude them.
sectorNoFor get_sector_pe, get_sector_performance: The sector to retrieve the history for, e.g. "Energy". For get_stock_screener: The sector to restrict the screen to, e.g. "Energy".
countryNoThe two-letter country code to restrict the screen to, e.g. "US".
end_dateNoEnd of the date range in YYYY-MM-DD format.
exchangeNoFor get_industry_pe, get_industry_performance, get_sector_pe, get_sector_performance, get_sectors_performance: The exchange whose companies are averaged, "NASDAQ", "NYSE" or "AMEX". For get_stock_screener: The exchange code to restrict the screen to, e.g. "NASDAQ". Leave unset to use the default of the indicator you selected. Defaults are 'NASDAQ' for get_industry_pe, get_industry_performance, get_sector_pe, get_sector_performance, get_sectors_performance; None for get_stock_screener.
industryNoFor get_industry_pe, get_industry_performance: The industry to retrieve the history for, e.g. "Biotechnology". For get_stock_screener: The industry to restrict the screen to, e.g. "Biotechnology".
indicatorYesName of the specific metric to calculate, one of the listed values. Required — search_metrics finds the indicator (and its tool) for a metric by name.
beta_lowerNoThe maximum beta of the stock.
start_dateNoStart of the date range in YYYY-MM-DD format.
beta_higherNoThe minimum beta of the stock.
price_lowerNoThe maximum price of the stock.
price_higherNoThe minimum price of the stock.
primary_onlyNoSet to true to keep only the most traded listing of each company rather than every listing (e.g. ING in Amsterdam, New York, Toronto and Frankfurt).
show_columnsNoComma-separated names to filter the output. For historical data use the key names visible in any response record (e.g. 'Close,Volume,Return'). For financial statements use the 'metric' field values from the response (e.g. 'Revenue,Net Income,EBITDA'). Call the tool once without this parameter to see all available names, then repeat with show_columns to reduce response size and token usage.
volume_lowerNoThe maximum volume of the stock.
volume_higherNoThe minimum volume of the stock, in shares traded.
dividend_lowerNoThe maximum dividend of the stock.
dividend_higherNoThe minimum dividend of the stock, as an amount per share over the last annual period rather than as a yield.
market_cap_lowerNoThe maximum market capitalization of the stock in US dollars.
market_cap_higherNoThe minimum market capitalization of the stock in US dollars (not in millions), e.g. 1_000_000_000 for $1 billion.

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed11 schema fields changedv2.3.0
    • changedInput schema / properties / beta_higher / anyOf
      Previous value: -[
      -  {
      -    "type": "integer"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "type": "number"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / beta_lower / anyOf
      Previous value: -[
      -  {
      -    "type": "integer"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "type": "number"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / dividend_higher / anyOf
      Previous value: -[
      -  {
      -    "type": "integer"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "type": "number"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / dividend_lower / anyOf
      Previous value: -[
      -  {
      -    "type": "integer"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "type": "number"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / exchange / description
      Previous value: -"The exchange code to restrict the screen to, e.g. \"NASDAQ\"."New value: +"For get_industry_pe, get_industry_performance, get_sector_pe, get_sector_performance, get_sectors_performance: The exchange whose companies are averaged, \"NASDAQ\", \"NYSE\" or \"AMEX\". For get_stock_screener: The exchange code to restrict the screen to, e.g. \"NASDAQ\". Leave unset to use the default of the indicator you selected. Defaults are 'NASDAQ' for get_industry_pe, get_industry_performance, get_sector_pe, get_sector_performance, get_sectors_performance; None for get_stock_screener."
    • addedInput schema / properties / index
      Added value: +{
      +  "default": "S&P 500",
      +  "description": "\"S&P 500\", \"NASDAQ 100\" or \"Dow Jones\".",
      +  "type": "string"
      +}
    • changedInput schema / properties / indicator / enum
      Previous value: -[
      -  "get_biggest_gainers",
      -  "get_biggest_losers",
      -  "get_commodity_list",
      -  "get_crypto_list",
      -  "get_crypto_news",
      -  "get_delisted_stocks",
      -  "get_earnings_calendar",
      -  "get_etf_list",
      -  "get_forex_list",
      -  "get_forex_news",
      -  "get_general_news",
      -  "get_index_list",
      -  "get_industry_pe",
      -  "get_industry_performance",
      -  "get_insider_trading_latest",
      -  "get_ipo_calendar",
      -  "get_ipo_disclosures",
      -  "get_ipo_prospectuses",
      -  "get_mergers_acquisitions_latest",
      -  "get_most_active_stocks",
      -  "get_press_releases",
      -  "get_sec_filings_8k",
      -  "get_sector_pe",
      -  "get_sector_performance",
      -  "get_sectors_performance",
      -  "get_stock_list",
      -  "get_stock_news",
      -  "get_stock_screener",
      -  "get_stock_shares_float",
      -  "get_stock_splits_calendar"
      -]New value: +[
      +  "get_biggest_gainers",
      +  "get_biggest_losers",
      +  "get_commodity_list",
      +  "get_crypto_list",
      +  "get_crypto_news",
      +  "get_delisted_stocks",
      +  "get_earnings_calendar",
      +  "get_etf_list",
      +  "get_forex_list",
      +  "get_forex_news",
      +  "get_general_news",
      +  "get_index_constituents",
      +  "get_index_list",
      +  "get_industry_pe",
      +  "get_industry_performance",
      +  "get_insider_trading_latest",
      +  "get_ipo_calendar",
      +  "get_ipo_disclosures",
      +  "get_ipo_prospectuses",
      +  "get_mergers_acquisitions_latest",
      +  "get_most_active_stocks",
      +  "get_press_releases",
      +  "get_sec_filings_8k",
      +  "get_sector_pe",
      +  "get_sector_performance",
      +  "get_sectors_performance",
      +  "get_stock_list",
      +  "get_stock_news",
      +  "get_stock_screener",
      +  "get_stock_shares_float",
      +  "get_stock_splits_calendar"
      +]
    • changedInput schema / properties / market_cap_higher / description
      Previous value: -"The minimum market capitalization of the stock, in the currency of the listing rather than in millions."New value: +"The minimum market capitalization of the stock in US dollars (not in millions), e.g. 1_000_000_000 for $1 billion."
    • changedInput schema / properties / market_cap_lower / description
      Previous value: -"The maximum market capitalization of the stock."New value: +"The maximum market capitalization of the stock in US dollars."
    • changedInput schema / properties / price_higher / anyOf
      Previous value: -[
      -  {
      -    "type": "integer"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "type": "number"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / price_lower / anyOf
      Previous value: -[
      -  {
      -    "type": "integer"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "type": "number"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
  2. Changed46 schema fields changedv2.2.3
    • changedInput schema / properties / beta_higher / description
      Previous value: -"Value for beta_higher."New value: +"The minimum beta of the stock."
    • removedInput schema / properties / beta_higher / title
      Removed value: -"Beta Higher"
    • changedInput schema / properties / beta_lower / description
      Previous value: -"Value for beta_lower."New value: +"The maximum beta of the stock."
    • removedInput schema / properties / beta_lower / title
      Removed value: -"Beta Lower"
    • changedInput schema / properties / country / description
      Previous value: -"Value for country."New value: +"The two-letter country code to restrict the screen to, e.g. \"US\"."
    • removedInput schema / properties / country / title
      Removed value: -"Country"
    • changedInput schema / properties / date / description
      Previous value: -"Value for date."New value: +"For get_industry_pe, get_industry_performance, get_sector_pe, get_sector_performance: The date to retrieve a snapshot for, e.g. \"2024-02-01\". For get_insider_trading_latest: Only return the trades filed on this date."
    • removedInput schema / properties / date / title
      Removed value: -"Date"
    • changedInput schema / properties / dividend_higher / description
      Previous value: -"Value for dividend_higher."New value: +"The minimum dividend of the stock, as an amount per share over the last annual period rather than as a yield."
    • removedInput schema / properties / dividend_higher / title
      Removed value: -"Dividend Higher"
    • changedInput schema / properties / dividend_lower / description
      Previous value: -"Value for dividend_lower."New value: +"The maximum dividend of the stock."
    • removedInput schema / properties / dividend_lower / title
      Removed value: -"Dividend Lower"
    • addedInput schema / properties / end_date
      Added value: +{
      +  "default": "",
      +  "description": "End of the date range in YYYY-MM-DD format.",
      +  "type": "string"
      +}
    • changedInput schema / properties / exchange / description
      Previous value: -"Value for exchange."New value: +"The exchange code to restrict the screen to, e.g. \"NASDAQ\"."
    • removedInput schema / properties / exchange / title
      Removed value: -"Exchange"
    • changedInput schema / properties / indicator / description
      Previous value: -"Name of the specific metric to calculate, e.g. 'get_asset_turnover_ratio'. Required — omitting it returns the list of available indicators."New value: +"Name of the specific metric to calculate, one of the listed values. Required — search_metrics finds the indicator (and its tool) for a metric by name."
    • changedInput schema / properties / indicator / enum
      Previous value: -[
      -  "get_biggest_gainers",
      -  "get_biggest_losers",
      -  "get_commodity_list",
      -  "get_crypto_list",
      -  "get_crypto_news",
      -  "get_delisted_stocks",
      -  "get_etf_list",
      -  "get_forex_list",
      -  "get_forex_news",
      -  "get_general_news",
      -  "get_index_list",
      -  "get_industry_pe",
      -  "get_industry_performance",
      -  "get_ipo_calendar",
      -  "get_ipo_disclosures",
      -  "get_ipo_prospectuses",
      -  "get_mergers_acquisitions_latest",
      -  "get_most_active_stocks",
      -  "get_press_releases",
      -  "get_sector_pe",
      -  "get_sector_performance",
      -  "get_sectors_performance",
      -  "get_stock_list",
      -  "get_stock_news",
      -  "get_stock_screener",
      -  "get_stock_shares_float",
      -  "get_stock_splits_calendar"
      -]New value: +[
      +  "get_biggest_gainers",
      +  "get_biggest_losers",
      +  "get_commodity_list",
      +  "get_crypto_list",
      +  "get_crypto_news",
      +  "get_delisted_stocks",
      +  "get_earnings_calendar",
      +  "get_etf_list",
      +  "get_forex_list",
      +  "get_forex_news",
      +  "get_general_news",
      +  "get_index_list",
      +  "get_industry_pe",
      +  "get_industry_performance",
      +  "get_insider_trading_latest",
      +  "get_ipo_calendar",
      +  "get_ipo_disclosures",
      +  "get_ipo_prospectuses",
      +  "get_mergers_acquisitions_latest",
      +  "get_most_active_stocks",
      +  "get_press_releases",
      +  "get_sec_filings_8k",
      +  "get_sector_pe",
      +  "get_sector_performance",
      +  "get_sectors_performance",
      +  "get_stock_list",
      +  "get_stock_news",
      +  "get_stock_screener",
      +  "get_stock_shares_float",
      +  "get_stock_splits_calendar"
      +]
    • removedInput schema / properties / indicator / title
      Removed value: -"Indicator"
    • changedInput schema / properties / industry / description
      Previous value: -"Value for industry."New value: +"For get_industry_pe, get_industry_performance: The industry to retrieve the history for, e.g. \"Biotechnology\". For get_stock_screener: The industry to restrict the screen to, e.g. \"Biotechnology\"."
    • removedInput schema / properties / industry / title
      Removed value: -"Industry"
    • changedInput schema / properties / is_etf / description
      Previous value: -"Value for is_etf."New value: +"Whether to restrict the screen to ETFs or to exclude them."
    • removedInput schema / properties / is_etf / title
      Removed value: -"Is Etf"
    • changedInput schema / properties / limit / description
      Previous value: -"Value for limit. Leave unset to use the default of the indicator you selected. Defaults are 100 for get_crypto_news, get_delisted_stocks, get_forex_news, get_general_news, get_mergers_acquisitions_latest, get_press_releases, get_stock_news; 1000 for get_stock_screener."New value: +"The rows to return, like head and tail: 5 for the first five, -5 for the last five (the most recent of a time series). A table with its periods as columns (financial statements, ratios) keeps its first or last periods instead. For ETF holdings the largest (or, negative, the smallest) by weight, and for a list (e.g. news or a screener) its length. Leave unset to use the default of the indicator you selected. Defaults are 100 for get_crypto_news, get_delisted_stocks, get_forex_news, get_general_news, get_insider_trading_latest, get_mergers_acquisitions_latest, get_press_releases, get_sec_filings_8k, get_stock_news; 1000 for get_stock_screener."
    • removedInput schema / properties / limit / title
      Removed value: -"Limit"
    • changedInput schema / properties / market_cap_higher / description
      Previous value: -"Value for market_cap_higher."New value: +"The minimum market capitalization of the stock, in the currency of the listing rather than in millions."
    • removedInput schema / properties / market_cap_higher / title
      Removed value: -"Market Cap Higher"
    • changedInput schema / properties / market_cap_lower / description
      Previous value: -"Value for market_cap_lower."New value: +"The maximum market capitalization of the stock."
    • removedInput schema / properties / market_cap_lower / title
      Removed value: -"Market Cap Lower"
    • changedInput schema / properties / page / description
      Previous value: -"Value for page."New value: +"For get_delisted_stocks: The page of results to retrieve, starting at 0. For get_insider_trading_latest, get_mergers_acquisitions_latest, get_sec_filings_8k: The page number to retrieve."
    • removedInput schema / properties / page / title
      Removed value: -"Page"
    • changedInput schema / properties / pages / description
      Previous value: -"Value for pages."New value: +"The number of pages to collect, each page is a separate API call, e.g. pages=5 makes 5 calls."
    • removedInput schema / properties / pages / title
      Removed value: -"Pages"
    • changedInput schema / properties / price_higher / description
      Previous value: -"Value for price_higher."New value: +"The minimum price of the stock."
    • removedInput schema / properties / price_higher / title
      Removed value: -"Price Higher"
    • changedInput schema / properties / price_lower / description
      Previous value: -"Value for price_lower."New value: +"The maximum price of the stock."
    • removedInput schema / properties / price_lower / title
      Removed value: -"Price Lower"
    • addedInput schema / properties / primary_only
      Added value: +{
      +  "default": false,
      +  "description": "Set to true to keep only the most traded listing of each company rather than every listing (e.g. ING in Amsterdam, New York, Toronto and Frankfurt).",
      +  "type": "boolean"
      +}
    • changedInput schema / properties / sector / description
      Previous value: -"Value for sector."New value: +"For get_sector_pe, get_sector_performance: The sector to retrieve the history for, e.g. \"Energy\". For get_stock_screener: The sector to restrict the screen to, e.g. \"Energy\"."
    • removedInput schema / properties / sector / title
      Removed value: -"Sector"
    • removedInput schema / properties / show_columns / title
      Removed value: -"Show Columns"
    • addedInput schema / properties / start_date
      Added value: +{
      +  "default": "",
      +  "description": "Start of the date range in YYYY-MM-DD format.",
      +  "type": "string"
      +}
    • changedInput schema / properties / volume_higher / description
      Previous value: -"Value for volume_higher."New value: +"The minimum volume of the stock, in shares traded."
    • removedInput schema / properties / volume_higher / title
      Removed value: -"Volume Higher"
    • changedInput schema / properties / volume_lower / description
      Previous value: -"Value for volume_lower."New value: +"The maximum volume of the stock."
    • removedInput schema / properties / volume_lower / title
      Removed value: -"Volume Lower"
    • removedInput schema / title
      Removed value: -"discoveryArguments"
  3. Changed6 schema fields changedv2.2.0
    • addedInput schema / properties / country
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Value for country.",
      +  "title": "Country"
      +}
    • addedInput schema / properties / exchange
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Value for exchange.",
      +  "title": "Exchange"
      +}
    • addedInput schema / properties / limit / anyOf
      Added value: +[
      +  {
      +    "type": "integer"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / limit / default
      Previous value: -100New value: +null
    • changedInput schema / properties / limit / description
      Previous value: -"Value for limit."New value: +"Value for limit. Leave unset to use the default of the indicator you selected. Defaults are 100 for get_crypto_news, get_delisted_stocks, get_forex_news, get_general_news, get_mergers_acquisitions_latest, get_press_releases, get_stock_news; 1000 for get_stock_screener."
    • removedInput schema / properties / limit / type
      Removed value: -"integer"
  4. Changed7 schema fields changed
    • addedInput schema / properties / date
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Value for date.",
      +  "title": "Date"
      +}
    • changedInput schema / properties / indicator / enum
      Previous value: -[
      -  "get_biggest_gainers",
      -  "get_biggest_losers",
      -  "get_commodity_list",
      -  "get_crypto_list",
      -  "get_delisted_stocks",
      -  "get_etf_list",
      -  "get_forex_list",
      -  "get_index_list",
      -  "get_most_active_stocks",
      -  "get_sectors_performance",
      -  "get_stock_list",
      -  "get_stock_screener",
      -  "get_stock_shares_float"
      -]New value: +[
      +  "get_biggest_gainers",
      +  "get_biggest_losers",
      +  "get_commodity_list",
      +  "get_crypto_list",
      +  "get_crypto_news",
      +  "get_delisted_stocks",
      +  "get_etf_list",
      +  "get_forex_list",
      +  "get_forex_news",
      +  "get_general_news",
      +  "get_index_list",
      +  "get_industry_pe",
      +  "get_industry_performance",
      +  "get_ipo_calendar",
      +  "get_ipo_disclosures",
      +  "get_ipo_prospectuses",
      +  "get_mergers_acquisitions_latest",
      +  "get_most_active_stocks",
      +  "get_press_releases",
      +  "get_sector_pe",
      +  "get_sector_performance",
      +  "get_sectors_performance",
      +  "get_stock_list",
      +  "get_stock_news",
      +  "get_stock_screener",
      +  "get_stock_shares_float",
      +  "get_stock_splits_calendar"
      +]
    • addedInput schema / properties / industry
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Value for industry.",
      +  "title": "Industry"
      +}
    • addedInput schema / properties / limit
      Added value: +{
      +  "default": 100,
      +  "description": "Value for limit.",
      +  "title": "Limit",
      +  "type": "integer"
      +}
    • addedInput schema / properties / page
      Added value: +{
      +  "default": 0,
      +  "description": "Value for page.",
      +  "title": "Page",
      +  "type": "integer"
      +}
    • addedInput schema / properties / pages
      Added value: +{
      +  "default": 1,
      +  "description": "Value for pages.",
      +  "title": "Pages",
      +  "type": "integer"
      +}
    • addedInput schema / properties / sector
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Value for sector.",
      +  "title": "Sector"
      +}
  5. Changed1 schema field changedv0.1.2
    • addedInput schema / properties / show_columns
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Comma-separated names to filter the output. For historical data use the key names visible in any response record (e.g. 'Close,Volume,Return'). For financial statements use the 'metric' field values from the response (e.g. 'Revenue,Net Income,EBITDA'). Call the tool once without this parameter to see all available names, then repeat with show_columns to reduce response size and token usage.",
      +  "title": "Show Columns"
      +}
  6. Addedv0.1.1

TDQS

A3.8/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already mark the tool read-only, open-world and idempotent, while the description adds non-obvious behavior: market-wide news scope, earnings calendar defaulting to the coming week, sector/industry exchange averaging, decimal performance units, and screener listing behavior. It does not cover auth/rate-limit traits, but output schema and parameter descriptions cover return details.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with the tool's scope and is dense with non-obvious caveats, so most sentences earn their place. Its single long paragraph with many parenthetical and semicolon-separated clauses reduces scanability for such a large tool.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a 32-indicator mega-tool, it covers the highest-risk ambiguities: indicator selection, date behavior, market-wide news, screener ranking and primary_only. Some indicator-specific behaviors and screener filters are only documented in the enum/output schema, but the definition is adequate given those richer structured fields.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With schema coverage at 100%, the baseline is 3, but the description adds real semantic value beyond the schema for key parameters: date snapshot vs sector/industry history, exchange averaging, performance units, index constituent choices, and primary_only behavior. It leaves most screener filters, pagination and show_columns semantics to the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly scopes the tool as market discovery, enumerating lists, screener, movers, performance, calendars, filings, insider/merger data and news. It distinguishes itself from metric-focused siblings by breadth, but does not explicitly differentiate from sibling tools such as market_data or search_metrics.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives useful usage caveats, e.g. news feeds are market-wide and cannot be narrowed to a ticker, and classification screening should use the Finance Database server. However, it does not explicitly state when to choose discovery over sibling tools like market_data, search_metrics, or the metric analysis tools, leaving usage largely implied by indicator names.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.