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by io.github.TGM-Ventures
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Stock summary

get_stock_summary
Read-onlyIdempotent

Use first for any question about one company. Compact fundamentals summary for one ticker (~5 KB): latest close, market cap, valuation ratios, margins, returns, dividend record, and 3/5/10-year growth CAGRs, with as-of dates and applicability notes. Null values are honest gaps or sector-inappropriate metrics — never zeros.

Input Schema

NameRequiredDescriptionDefault
formatNojson (default): the full JSON as text. markdown: a compact table or list, fewer tokens. structuredContent is the full JSON either way.
symbolYesTicker symbol, e.g. AAPL

Output Schema

NameRequiredDescriptionDefault
asOfYes
nameYes
linksYes
priceYes
sectorYes
symbolYes
currencyYes
industryYes
dividendsYes
valuationYes
applicabilityYes
profitabilityYes
classificationYes
financialHealthYes
reportedCurrencyYes
growthCagrPercentYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • addedInput schema / properties / format
      Added value: +{
+  "description": "json (default): the full JSON as text. markdown: a compact table or list, fewer tokens. structuredContent is the full JSON either way.",
+  "enum": [
+    "json",
+    "markdown"
+  ],
+  "type": "string"
+}
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "additionalProperties": {},
+  "properties": {
+    "applicability": {
+      "additionalProperties": {
+        "type": "string"
+      },
+      "propertyNames": {
+        "type": "string"
+      },
+      "type": "object"
+    },
+    "asOf": {
+      "additionalProperties": {},
+      "properties": {
+        "dataUpdatedAt": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "note": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "dataUpdatedAt",
+        "note"
+      ],
+      "type": "object"
+    },
+    "classification": {},
+    "currency": {
+      "type": "string"
+    },
+    "dividends": {
+      "additionalProperties": {},
+      "properties": {
+        "consecutiveYears": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "dividendPerShare": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "payoutRatioPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "yieldPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "yieldPercent",
+        "payoutRatioPercent",
+        "dividendPerShare",
+        "consecutiveYears"
+      ],
+      "type": "object"
+    },
+    "financialHealth": {
+      "additionalProperties": {},
+      "properties": {
+        "currentRatio": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "debtToEquity": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "interestCoverage": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "quickRatio": {
+          "type": [
+            "number",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "currentRatio",
+        "quickRatio",
+        "debtToEquity",
+        "interestCoverage"
+      ],
+      "type": "object"
+    },
+    "growthCagrPercent": {
+      "additionalProperties": {
+        "additionalProperties": {},
+        "properties": {
+          "y10": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "y3": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "y5": {
+            "type": [
+              "number",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "y3",
+          "y5",
+          "y10"
+        ],
+        "type": "object"
+      },
+      "propertyNames": {
+        "type": "string"
+      },
+      "type": "object"
+    },
+    "industry": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "links": {
+      "additionalProperties": {
+        "type": "string"
+      },
+      "propertyNames": {
+        "type": "string"
+      },
+      "type": "object"
+    },
+    "name": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "price": {
+      "additionalProperties": {},
+      "properties": {
+        "change": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "changePercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "high52Week": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "lastClose": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "lastCloseDate": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "latestPrice": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "low52Week": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "marketCap": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "priceSource": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "return1YPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "returnYtdPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "lastClose",
+        "lastCloseDate",
+        "latestPrice",
+        "priceSource",
+        "change",
+        "changePercent",
+        "marketCap",
+        "high52Week",
+        "low52Week",
+        "returnYtdPercent",
+        "return1YPercent"
+      ],
+      "type": "object"
+    },
+    "profitability": {
+      "additionalProperties": {},
+      "properties": {
+        "grossMarginPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "netMarginPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "operatingMarginPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "roaPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "roePercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "roicPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "grossMarginPercent",
+        "operatingMarginPercent",
+        "netMarginPercent",
+        "roePercent",
+        "roaPercent",
+        "roicPercent"
+      ],
+      "type": "object"
+    },
+    "reportedCurrency": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "sector": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "symbol": {
+      "type": "string"
+    },
+    "valuation": {
+      "additionalProperties": {},
+      "properties": {
+        "earningsYieldPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "evToEbitda": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "evToSales": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "fcfYieldPercent": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "pbRatio": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "peRatio": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "peRatioForward": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "pegRatio": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "pfcfRatio": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "psRatio": {
+          "type": [
+            "number",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "peRatio",
+        "peRatioForward",
+        "psRatio",
+        "pbRatio",
+        "pfcfRatio",
+        "pegRatio",
+        "evToEbitda",
+        "evToSales",
+        "earningsYieldPercent",
+        "fcfYieldPercent"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "symbol",
+    "name",
+    "sector",
+    "industry",
+    "currency",
+    "reportedCurrency",
+    "asOf",
+    "price",
+    "valuation",
+    "profitability",
+    "financialHealth",
+    "dividends",
+    "growthCagrPercent",
+    "links",
+    "applicability",
+    "classification"
+  ],
+  "type": "object"
+}
  2. First observed

TDQS

A4.1/5.0
Behavior4/5

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

Annotations already cover readOnly/idempotent/non-destructive/openWorld, so the description rightly focuses on data semantics: the ~5 KB size, included as-of dates, applicability notes, and the important null-handling rule ('honest gaps or sector-inappropriate metrics — never zeros'). That null rule is valuable context an agent could not infer from structured fields; only rate/pagination behavior is unstated.

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?

Front-loaded with the routing instruction ('Use first...'), then the content list, then the null-semantics caveat — a logical order with no filler. The contents enumeration is dense but each item earns its place by telling the agent what to expect.

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?

With an output schema present and annotations covering the safety profile, the description is nearly sufficient: it says when to use it and what it returns, and adds null semantics. The only gap is not clarifying when to prefer the sibling drill-down tools (get_chart, get_metric_series).

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

Parameters3/5

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

Schema description coverage is 100%, and the format enum plus symbol are fully documented in the schema itself. The description mentions 'one ticker' but adds no syntax or format nuance beyond what the schema provides, so the baseline 3 applies.

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

Purpose5/5

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

States a specific verb+resource ('Compact fundamentals summary for one ticker') and enumerates exactly what is returned (close, market cap, ratios, margins, returns, dividends, CAGRs). The 'one company' framing implicitly distinguishes it from compare_stocks and screen_stocks, so an agent can route without opening the schema.

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

Usage Guidelines4/5

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

'Use first for any question about one company' gives a clear selection context and priority. It stops short of naming the alternative siblings (get_financial_statement, get_metric_series) or stating when NOT to use it, so it falls just below the exhaustive 5.

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

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