Valuein — SEC EDGAR Fundamentals & Smart-Money Data

Stock Price (as-of date)

get_stock_price

Read-onlyIdempotent

End-of-day closing price for a company AS OF any calendar date. Pass date to get the close on that day; if the date falls on a weekend or market holiday, it resolves backward to the most recent prior trading day's close (the price_date field tells you which day was actually used, and resolved_backward flags when it stepped back). Omit date for the latest available close. Closes are RAW (not split/dividend-adjusted); div_cash and split_factor carry the corporate-action factors for query-time total-return adjustment. This is EOD market data (not a SEC filing fact), so it carries a price_date rather than a fact_id. Coverage follows your plan's tier slice: Pro and Institutional get the full daily series (full = all companies & all archived history, pro = all companies & last 15 years). On the free plans (sample, benchmark) this tool returns the MONTH-END close instead of a daily bar: the close on the last trading day of the latest COMPLETED calendar month on-or-before the requested date (not an average; the month in progress appears once it ends), from the same archive at coarser granularity. The response's granularity field says which series answered the call ('daily' or 'monthly'); a free-plan response's note also spells out the upgrade path to daily bars. What every plan additionally has — the valuation multiples at each fiscal year end via get_financial_ratios (category 'valuation') and get_valuation_metrics, and 1/3/6/12-month momentum plus the 52-week high/low via get_earnings_signals. This archive is market data, NOT EDGAR, so it does NOT share the 1993 EDGAR floor that applies to fundamentals: the earliest bar differs per security and is 1994 or later. A request before a security's first bar returns zero bars on every tier, Institutional included, and is reported as DATA_COVERAGE rather than a plan limit.

Input Schema

Name	Required	Description	Default
`date`	No	As-of calendar date (YYYY-MM-DD). Returns the close of the most recent trading day on or before this date — a weekend/holiday resolves to the prior trading close. Omit to get the latest available close.
`ticker`	Yes	Stock ticker symbol, e.g. AAPL, MSFT — or a CIK (SEC identifier), e.g. '0000320193'.

Output Schema

Name	Required	Description
`cik`	Yes
`note`	Yes
`plan`	Yes
`_meta`	Yes	Provenance envelope — data lineage for every MCP response
`close`	Yes
`ticker`	Yes
`currency`	Yes
`div_cash`	Yes
`price_date`	Yes
`granularity`	Yes
`company_name`	Yes
`split_factor`	Yes
`requested_date`	Yes
`resolved_backward`	Yes
`total_return_index`	No
`is_exact_date_match`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 29, 2026

changedOutput schema / properties / _meta / properties / cost_usd / properties / basis / description

Previous value: -"payg_charge = real charge (agent-pay or your balance). payg_rate_card = indicative price, not billed."New value: +"payg_charge = real pay-per-call charge (a card or MPP payment through agent-pay). payg_rate_card = indicative price, not billed."

Changed2 schema fields changedOct 29, 2026

changedOutput schema / properties / _meta / properties / cost_usd / properties / basis / description

Previous value: -"payg_charge = real agent-pay charge. payg_rate_card = indicative price, not billed."New value: +"payg_charge = real charge (agent-pay or your balance). payg_rate_card = indicative price, not billed."

changedOutput schema / properties / _meta / properties / cost_usd / properties / billed / description

Previous value: -"true = this amount was actually charged via PAYG for this call. false = indicative PAYG-equivalent value; your plan already covers this call for free."New value: +"true = this amount was actually charged via PAYG for this call. false = indicative PAYG-equivalent value only: no charge was made for this call (it was within your plan)."

Changed19 schema fields changedOct 16, 2026

changedInput schema / properties / date / description

Previous value: -"Date to price as of, YYYY-MM-DD; omit for the latest completed month-end, e.g. 2024-06-15."New value: +"As-of calendar date (YYYY-MM-DD). Returns the close of the most recent trading day on or before this date — a weekend/holiday resolves to the prior trading close. Omit to get the latest available close."

changedInput schema / properties / ticker / description

Previous value: -"Ticker symbol or SEC CIK of the company, e.g. AAPL."New value: +"Stock ticker symbol, e.g. AAPL, MSFT — or a CIK (SEC identifier), e.g. '0000320193'."

addedOutput schema / properties / _meta / properties / cost_usd

Added value: +{
+  "additionalProperties": false,
+  "description": "Per-call cost transparency. Omitted for subscription-only tools that have no PAYG-equivalent price.",
+  "properties": {
+    "amount_usd": {
+      "minimum": 0,
+      "type": "number"
+    },
+    "basis": {
+      "description": "payg_charge = real agent-pay charge. payg_rate_card = indicative price, not billed.",
+      "enum": [
+        "payg_charge",
+        "payg_rate_card"
+      ],
+      "type": "string"
+    },
+    "billed": {
+      "description": "true = this amount was actually charged via PAYG for this call. false = indicative PAYG-equivalent value; your plan already covers this call for free.",
+      "type": "boolean"
+    }
+  },
+  "required": [
+    "amount_usd",
+    "billed",
+    "basis"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / _meta / properties / data_plan

Added value: +{
+  "description": "Access plan: sample | sp500 | pro | full",
+  "type": "string"
+}

changedOutput schema / properties / _meta / properties / fundamentals_as_of / description

Previous value: -"Use THIS — not `last_updated` — when telling a user how current the cross-sectional fundamentals are. The snapshot is republished on every weekday price refresh while the statements are carried forward unchanged, so `last_updated` can be far more recent than the numbers it sits next to. It is a floor for a single filer, not a ceiling: a filer with a live partition receives its filing, facts and ratios intraday (minutes after EDGAR dissemination), so an entity-scoped read may carry a filing newer than this; cross-sectional ranks (factor scores, earnings signals) refresh with the weekly bulk export."New value: +"ISO timestamp when the FINANCIAL STATEMENTS were last rebuilt in bulk. Use THIS — not `last_updated` — when telling a user how current the cross-sectional fundamentals are. The snapshot is republished on every weekday price refresh while the statements are carried forward unchanged, so `last_updated` can be far more recent than the numbers it sits next to. It is a floor for a single filer, not a ceiling: a filer with a live partition receives its filing, facts and ratios intraday (minutes after EDGAR dissemination), so an entity-scoped read may carry a filing newer than this; cross-sectional ranks (factor scores, earnings signals) refresh with the weekly bulk export."

addedOutput schema / properties / _meta / properties / last_updated

Added value: +{
+  "description": "ISO timestamp when the snapshot was exported",
+  "type": "string"
+}

addedOutput schema / properties / _meta / properties / latency_ms

Added value: +{
+  "description": "Wall-clock milliseconds this tool call took, measured server-side around the handler.",
+  "minimum": 0,
+  "type": "integer"
+}

addedOutput schema / properties / _meta / properties / limit_warnings

Added value: +{
+  "description": "Soft-warning array for partial fulfillment. Each entry carries a stable subcode + remediation.options[]. AI agents pattern-match on subcode.",
+  "items": {
+    "additionalProperties": true,
+    "properties": {
+      "code": {
+        "const": "LIMIT_EXCEEDED",
+        "type": "string"
+      },
+      "current_plan": {
+        "type": "string"
+      },
+      "extensions": {
+        "additionalProperties": {},
+        "type": "object"
+      },
+      "limit_type": {
+        "type": "string"
+      },
+      "limit_value": {},
+      "remediation": {
+        "additionalProperties": true,
+        "properties": {
+          "contact_sales": {
+            "type": "string"
+          },
+          "default_action": {
+            "type": "string"
+          },
+          "options": {
+            "items": {
+              "additionalProperties": {},
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "pricing_page": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "options",
+          "default_action",
+          "pricing_page",
+          "contact_sales"
+        ],
+        "type": "object"
+      },
+      "requested_value": {},
+      "returned_value": {},
+      "subcode": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "code",
+      "subcode",
+      "limit_type",
+      "current_plan",
+      "remediation"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / _meta / properties / payg_override

Added value: +{
+  "additionalProperties": false,
+  "description": "Set when this single response was paid for via the agent-pay PAYG flow — the rate-limit / depth-limit checks were bypassed for this call only.",
+  "properties": {
+    "amount_cents": {
+      "type": "number"
+    },
+    "entity_scope_hash": {
+      "type": "string"
+    },
+    "meter": {
+      "type": "string"
+    },
+    "quote_id": {
+      "type": "string"
+    },
+    "retry_token_hash": {
+      "type": "string"
+    },
+    "ticker_count": {
+      "type": "number"
+    },
+    "tool": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "quote_id",
+    "tool",
+    "meter",
+    "amount_cents",
+    "ticker_count",
+    "entity_scope_hash",
+    "retry_token_hash"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / _meta / properties / rate_limit

Added value: +{
+  "additionalProperties": false,
+  "description": "Caller's remaining budget",
+  "properties": {
+    "limit": {
+      "type": "integer"
+    },
+    "remaining": {
+      "type": "integer"
+    },
+    "reset_at": {
+      "description": "ISO 8601 timestamp when the window resets",
+      "type": "string"
+    },
+    "window": {
+      "enum": [
+        "minute",
+        "hour"
+      ],
+      "type": "string"
+    }
+  },
+  "required": [
+    "limit",
+    "remaining",
+    "reset_at",
+    "window"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / _meta / properties / request_id

Added value: +{
+  "description": "Per-request correlation id (8-char)",
+  "type": "string"
+}

addedOutput schema / properties / _meta / properties / schema_version

Added value: +{
+  "description": "Parquet schema version from manifest.json",
+  "type": "string"
+}

addedOutput schema / properties / _meta / properties / snapshot

Added value: +{
+  "description": "Snapshot directory name (e.g. snapshot_20260420)",
+  "type": "string"
+}

addedOutput schema / properties / _meta / properties / truncation / properties / current_plan
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / _meta / properties / truncation / properties / upgrade_required_for
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / _meta / properties / truncation / properties / upgrade_url
```
Added value: +{
+  "type": "string"
+}
```

changedOutput schema / properties / _meta / required

Previous value: -[
-  "pit_safe"
-]New value: +[
+  "data_plan",
+  "schema_version",
+  "snapshot",
+  "last_updated",
+  "pit_safe"
+]

addedOutput schema / properties / plan
```
Added value: +{
+  "type": "string"
+}
```

changedOutput schema / required

Previous value: -[
-  "_meta",
-  "ticker",
-  "cik",
-  "company_name",
-  "requested_date",
-  "price_date",
-  "close",
-  "currency",
-  "is_exact_date_match",
-  "resolved_backward",
-  "div_cash",
-  "split_factor",
-  "granularity",
-  "note"
-]New value: +[
+  "_meta",
+  "ticker",
+  "plan",
+  "cik",
+  "company_name",
+  "requested_date",
+  "price_date",
+  "close",
+  "currency",
+  "is_exact_date_match",
+  "resolved_backward",
+  "div_cash",
+  "split_factor",
+  "granularity",
+  "note"
+]

Changed20 schema fields changedSep 29, 2026

changedInput schema / properties / date / description

Previous value: -"As-of calendar date (YYYY-MM-DD). Returns the close of the most recent trading day on or before this date — a weekend/holiday resolves to the prior trading close. Omit to get the latest available close."New value: +"Date to price as of, YYYY-MM-DD; omit for the latest completed month-end, e.g. 2024-06-15."

changedInput schema / properties / ticker / description

Previous value: -"Stock ticker symbol, e.g. AAPL, MSFT — or a CIK (SEC identifier), e.g. '0000320193'."New value: +"Ticker symbol or SEC CIK of the company, e.g. AAPL."

removedOutput schema / properties / _meta / properties / cost_usd

Removed value: -{
-  "additionalProperties": false,
-  "description": "Per-call cost transparency. Omitted for subscription-only tools that have no PAYG-equivalent price.",
-  "properties": {
-    "amount_usd": {
-      "minimum": 0,
-      "type": "number"
-    },
-    "basis": {
-      "description": "payg_charge = real agent-pay charge. payg_rate_card = indicative price, not billed.",
-      "enum": [
-        "payg_charge",
-        "payg_rate_card"
-      ],
-      "type": "string"
-    },
-    "billed": {
-      "description": "true = this amount was actually charged via PAYG for this call. false = indicative PAYG-equivalent value; your plan already covers this call for free.",
-      "type": "boolean"
-    }
-  },
-  "required": [
-    "amount_usd",
-    "billed",
-    "basis"
-  ],
-  "type": "object"
-}

removedOutput schema / properties / _meta / properties / data_plan

Removed value: -{
-  "description": "Access plan: sample | sp500 | pro | full",
-  "type": "string"
-}

changedOutput schema / properties / _meta / properties / fundamentals_as_of / description

Previous value: -"ISO timestamp when the FINANCIAL STATEMENTS were last rebuilt in bulk. Use THIS — not `last_updated` — when telling a user how current the cross-sectional fundamentals are. The snapshot is republished on every weekday price refresh while the statements are carried forward unchanged, so `last_updated` can be far more recent than the numbers it sits next to. It is a floor for a single filer, not a ceiling: a filer with a live partition receives its filing, facts and ratios intraday (minutes after EDGAR dissemination), so an entity-scoped read may carry a filing newer than this; cross-sectional ranks (factor scores, earnings signals) refresh with the weekly bulk export."New value: +"Use THIS — not `last_updated` — when telling a user how current the cross-sectional fundamentals are. The snapshot is republished on every weekday price refresh while the statements are carried forward unchanged, so `last_updated` can be far more recent than the numbers it sits next to. It is a floor for a single filer, not a ceiling: a filer with a live partition receives its filing, facts and ratios intraday (minutes after EDGAR dissemination), so an entity-scoped read may carry a filing newer than this; cross-sectional ranks (factor scores, earnings signals) refresh with the weekly bulk export."

removedOutput schema / properties / _meta / properties / last_updated

Removed value: -{
-  "description": "ISO timestamp when the snapshot was exported",
-  "type": "string"
-}

removedOutput schema / properties / _meta / properties / latency_ms

Removed value: -{
-  "description": "Wall-clock milliseconds this tool call took, measured server-side around the handler.",
-  "minimum": 0,
-  "type": "integer"
-}

removedOutput schema / properties / _meta / properties / limit_warnings

Removed value: -{
-  "description": "Soft-warning array for partial fulfillment. Each entry carries a stable subcode + remediation.options[]. AI agents pattern-match on subcode.",
-  "items": {
-    "additionalProperties": true,
-    "properties": {
-      "code": {
-        "const": "LIMIT_EXCEEDED",
-        "type": "string"
-      },
-      "current_plan": {
-        "type": "string"
-      },
-      "extensions": {
-        "additionalProperties": {},
-        "type": "object"
-      },
-      "limit_type": {
-        "type": "string"
-      },
-      "limit_value": {},
-      "remediation": {
-        "additionalProperties": true,
-        "properties": {
-          "contact_sales": {
-            "type": "string"
-          },
-          "default_action": {
-            "type": "string"
-          },
-          "options": {
-            "items": {
-              "additionalProperties": {},
-              "type": "object"
-            },
-            "type": "array"
-          },
-          "pricing_page": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "options",
-          "default_action",
-          "pricing_page",
-          "contact_sales"
-        ],
-        "type": "object"
-      },
-      "requested_value": {},
-      "returned_value": {},
-      "subcode": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "code",
-      "subcode",
-      "limit_type",
-      "current_plan",
-      "remediation"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}

removedOutput schema / properties / _meta / properties / payg_override

Removed value: -{
-  "additionalProperties": false,
-  "description": "Set when this single response was paid for via the agent-pay PAYG flow — the rate-limit / depth-limit checks were bypassed for this call only.",
-  "properties": {
-    "amount_cents": {
-      "type": "number"
-    },
-    "entity_scope_hash": {
-      "type": "string"
-    },
-    "meter": {
-      "type": "string"
-    },
-    "quote_id": {
-      "type": "string"
-    },
-    "retry_token_hash": {
-      "type": "string"
-    },
-    "ticker_count": {
-      "type": "number"
-    },
-    "tool": {
-      "type": "string"
-    }
-  },
-  "required": [
-    "quote_id",
-    "tool",
-    "meter",
-    "amount_cents",
-    "ticker_count",
-    "entity_scope_hash",
-    "retry_token_hash"
-  ],
-  "type": "object"
-}

removedOutput schema / properties / _meta / properties / rate_limit

Removed value: -{
-  "additionalProperties": false,
-  "description": "Caller's remaining budget",
-  "properties": {
-    "limit": {
-      "type": "integer"
-    },
-    "remaining": {
-      "type": "integer"
-    },
-    "reset_at": {
-      "description": "ISO 8601 timestamp when the window resets",
-      "type": "string"
-    },
-    "window": {
-      "enum": [
-        "minute",
-        "hour"
-      ],
-      "type": "string"
-    }
-  },
-  "required": [
-    "limit",
-    "remaining",
-    "reset_at",
-    "window"
-  ],
-  "type": "object"
-}

removedOutput schema / properties / _meta / properties / request_id

Removed value: -{
-  "description": "Per-request correlation id (8-char)",
-  "type": "string"
-}

removedOutput schema / properties / _meta / properties / schema_version

Removed value: -{
-  "description": "Parquet schema version from manifest.json",
-  "type": "string"
-}

removedOutput schema / properties / _meta / properties / snapshot

Removed value: -{
-  "description": "Snapshot directory name (e.g. snapshot_20260420)",
-  "type": "string"
-}

removedOutput schema / properties / _meta / properties / source

Removed value: -{
-  "const": "SEC EDGAR",
-  "type": "string"
-}

removedOutput schema / properties / _meta / properties / truncation / properties / current_plan
```
Removed value: -{
-  "type": "string"
-}
```
removedOutput schema / properties / _meta / properties / truncation / properties / upgrade_required_for
```
Removed value: -{
-  "type": "string"
-}
```
removedOutput schema / properties / _meta / properties / truncation / properties / upgrade_url
```
Removed value: -{
-  "type": "string"
-}
```

changedOutput schema / properties / _meta / required

Previous value: -[
-  "data_plan",
-  "schema_version",
-  "snapshot",
-  "last_updated",
-  "source",
-  "pit_safe"
-]New value: +[
+  "pit_safe"
+]

removedOutput schema / properties / plan

Removed value: -{
-  "type": "string"
-}

changedOutput schema / required

Previous value: -[
-  "_meta",
-  "ticker",
-  "plan",
-  "cik",
-  "company_name",
-  "requested_date",
-  "price_date",
-  "close",
-  "currency",
-  "is_exact_date_match",
-  "resolved_backward",
-  "div_cash",
-  "split_factor",
-  "granularity",
-  "note"
-]New value: +[
+  "_meta",
+  "ticker",
+  "cik",
+  "company_name",
+  "requested_date",
+  "price_date",
+  "close",
+  "currency",
+  "is_exact_date_match",
+  "resolved_backward",
+  "div_cash",
+  "split_factor",
+  "granularity",
+  "note"
+]

Changed3 schema fields changedSep 18, 2026

addedOutput schema / properties / granularity

Added value: +{
+  "enum": [
+    "daily",
+    "monthly"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / total_return_index

Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}

changedOutput schema / required

Previous value: -[
-  "_meta",
-  "ticker",
-  "plan",
-  "cik",
-  "company_name",
-  "requested_date",
-  "price_date",
-  "close",
-  "currency",
-  "is_exact_date_match",
-  "resolved_backward",
-  "div_cash",
-  "split_factor",
-  "note"
-]New value: +[
+  "_meta",
+  "ticker",
+  "plan",
+  "cik",
+  "company_name",
+  "requested_date",
+  "price_date",
+  "close",
+  "currency",
+  "is_exact_date_match",
+  "resolved_backward",
+  "div_cash",
+  "split_factor",
+  "granularity",
+  "note"
+]

Changed1 schema field changedSep 18, 2026

changedOutput schema / properties / _meta / properties / fundamentals_as_of / description

Previous value: -"ISO timestamp when the FINANCIAL STATEMENTS were last rebuilt. Use THIS — not `last_updated` — when telling a user how current the fundamentals are. The snapshot is republished on every weekday price refresh while the statements are carried forward unchanged, so `last_updated` can be far more recent than the numbers it sits next to."New value: +"ISO timestamp when the FINANCIAL STATEMENTS were last rebuilt in bulk. Use THIS — not `last_updated` — when telling a user how current the cross-sectional fundamentals are. The snapshot is republished on every weekday price refresh while the statements are carried forward unchanged, so `last_updated` can be far more recent than the numbers it sits next to. It is a floor for a single filer, not a ceiling: a filer with a live partition receives its filing, facts and ratios intraday (minutes after EDGAR dissemination), so an entity-scoped read may carry a filing newer than this; cross-sectional ranks (factor scores, earnings signals) refresh with the weekly bulk export."

Changed2 schema fields changedSep 11, 2026

changedInput schema / properties / ticker / description

Previous value: -"Stock ticker symbol, e.g. AAPL, MSFT"New value: +"Stock ticker symbol, e.g. AAPL, MSFT — or a CIK (SEC identifier), e.g. '0000320193'."

changedInput schema / properties / ticker / pattern

Previous value: -"^[A-Za-z.\\-]+$"New value: +"^[A-Za-z0-9.\\-]+$"

Changed2 schema fields changedJul 25, 2026

addedOutput schema / properties / _meta / properties / fundamentals_as_of

Added value: +{
+  "description": "ISO timestamp when the FINANCIAL STATEMENTS were last rebuilt. Use THIS — not `last_updated` — when telling a user how current the fundamentals are. The snapshot is republished on every weekday price refresh while the statements are carried forward unchanged, so `last_updated` can be far more recent than the numbers it sits next to.",
+  "type": "string"
+}

addedOutput schema / properties / _meta / properties / price_as_of

Added value: +{
+  "description": "ISO timestamp when the price surfaces were last refreshed.",
+  "type": "string"
+}

Changed2 schema fields changedJul 7, 2026

addedOutput schema / properties / _meta / properties / cost_usd

Added value: +{
+  "additionalProperties": false,
+  "description": "Per-call cost transparency. Omitted for subscription-only tools that have no PAYG-equivalent price.",
+  "properties": {
+    "amount_usd": {
+      "minimum": 0,
+      "type": "number"
+    },
+    "basis": {
+      "description": "payg_charge = real agent-pay charge. payg_rate_card = indicative price, not billed.",
+      "enum": [
+        "payg_charge",
+        "payg_rate_card"
+      ],
+      "type": "string"
+    },
+    "billed": {
+      "description": "true = this amount was actually charged via PAYG for this call. false = indicative PAYG-equivalent value; your plan already covers this call for free.",
+      "type": "boolean"
+    }
+  },
+  "required": [
+    "amount_usd",
+    "billed",
+    "basis"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / _meta / properties / latency_ms

Added value: +{
+  "description": "Wall-clock milliseconds this tool call took, measured server-side around the handler.",
+  "minimum": 0,
+  "type": "integer"
+}

AddedJun 29, 2026

TDQS

A4.3/5.0

Behavior5/5

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

Far beyond the readOnly/idempotent annotations: discloses plan-tier slicing (Pro/Institutional get the daily series; sample/benchmark get month-end closes from the last completed month), that closes are raw and unadjusted with div_cash/split_factor for adjustment, the 1994+ archive floor with no shared EDGAR floor, and that pre-first-bar requests return DATA_COVERAGE rather than a plan-limit error. This is exactly the operationally decisive context an agent cannot infer.

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

Conciseness3/5

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

Well front-loaded, but the single dense block is heavy with parentheticals and repeats the free-plan behavior at length (month-end close, 'not an average', 'month in progress appears once it ends', plus the `note` upgrade path). The signal-to-clause ratio is good but the sizing exceeds what the tool requires.

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

Completeness5/5

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

Output schema exists, and the description still names the return fields that change interpretation (price_date, resolved_backward, granularity, note). Coverage boundaries, tier behavior, and error semantics are all covered; nothing needed to call it correctly is missing.

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 schema already explains the YYYY-MM-DD format and weekend/holiday backward resolution. The description largely restates that behavior and adds only the resolved_backward/price_date signal fields, so baseline 3 is right.

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?

Opens with a specific verb+resource+scope: 'End-of-day closing price for a company AS OF any calendar date.' It also explicitly distinguishes the resource class ('EOD market data, not a SEC filing fact'), which separates it from the fundamentals tools in the sibling list.

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?

Gives concrete calling rules: pass `date` for an as-of close, omit it for the latest close, and it routes the agent to get_financial_ratios (valuation), get_valuation_metrics, and get_earnings_signals for adjacent data. It never mentions get_price_history or get_pit_universe, the closest siblings, so the most confusable routing decision is left unaddressed.

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

All Valuein — SEC EDGAR Fundamentals & Smart-Money Data tools Inspect

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