stock-mcp

Server Quality Checklist

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Latest release: v0.2.1
Disambiguation3/5
Most retrievals map cleanly to distinct data slices (quote, bars, profile, financials), but there are several closely grouped families: get_holders/get_fund_holders/get_holder_breakdown, get_analyst_forecast/get_recommendation_trend/get_analyst_actions/get_earnings_trend, and get_options/get_option_quote. The descriptions help, but an agent could easily select the wrong endpoint within these clusters.
Naming Consistency5/5
All tools follow a clear snake_case verb_noun pattern: get_* for data retrieval, search_symbol for lookup, sync_* for data population, and list_sectors for catalog access. The only minor variation is the mix of verbs, but each verb maps consistently to an action category, so the set is predictable.
Tool Count2/5
At 27 tools, the server exceeds the comfortable 15-tool range and is just past the 25 threshold. While the stock-data domain is broad, several endpoints (e.g., owner/analyst families) could be consolidated without losing clarity.
Completeness4/5
The surface covers the core stock lifecycle: symbol search, quotes, daily/intraday bars, financial statements, dividends, analyst data, ownership, news, options, and sector performance. Minor gaps exist such as batch quote support or historical options chains, but agents can complete typical research workflows without dead ends.
Average 3.4/5 across 27 of 27 tools scored. Lowest: 2.4/5.
See the Tool Scores section below for per-tool breakdowns.
- No community issues in the last 6 months
- 21 commits in the last 12 weeks
- No stable releases found
- No critical vulnerability alerts
- No high-severity vulnerability alerts
- No code scanning findings
- CI is passing
This repository is licensed under MIT License.
This repository includes a README.md file.
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{
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}
```
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How is the quality score calculated?

The overall quality score combines two components: Tool Definition Quality (70%) and Server Coherence (30%).

Tool Definition Quality measures how well each tool describes itself to AI agents. Every tool is scored 1–5 across six dimensions: Purpose Clarity (25%), Usage Guidelines (20%), Behavioral Transparency (20%), Parameter Semantics (15%), Conciseness & Structure (10%), and Contextual Completeness (10%). The server-level definition quality score is calculated as 60% mean TDQS + 40% minimum TDQS, so a single poorly described tool pulls the score down.

Server Coherence evaluates how well the tools work together as a set, scoring four dimensions equally: Disambiguation (can agents tell tools apart?), Naming Consistency, Tool Count Appropriateness, and Completeness (are there gaps in the tool surface?).

Tiers are derived from the overall score: A (≥3.5), B (≥3.0), C (≥2.0), D (≥1.0), F (<1.0). B and above is considered passing.

Tool Scores

Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It only says 'Get' with no mention of output format, pagination, ordering, data scope, or any side effects. For a retrieval tool, the absence of behavioral details is a notable gap.
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?
The description is a single sentence with no filler, so it is concise. However, it is under-specified and awkwardly phrased, with no additional context or structure to help disambiguation. It is minimal rather than genuinely well-structured.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With two params, no output schema, and no annotations, the description is the sole source of guidance, yet it fails to explain return values, how the symbol is interpreted, what 'positions' includes, or how limit affects results. This is insufficient for confident invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Only symbol is described in the schema; limit has no description. The description adds no parameter-level meaning and does not compensate for the 50% schema coverage. It also does not clarify the meaning or effect of the limit parameter.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose3/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses the verb 'Get' with a resource, but 'mutual fund / fund ownership positions' is ambiguous: it could mean a fund's holdings or its owners' positions. The statement does not clearly distinguish this tool from siblings such as get_holder_breakdown or get_quote.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
There is no guidance on when to use this tool versus alternatives. No preconditions, exclusions, or selection criteria are mentioned. The intended usage is only implied by the tool name and minimal description.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the behavioral disclosure burden. It only says 'recent news' without explaining response shape, pagination/limit behavior, time window, or any rate-limit/auth considerations. Nothing contradicts the tool name, but the behavioral context is minimal.
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 a single sentence with no filler and gets the core purpose across quickly. However, its brevity is partly due to omitted behavioral and parameter context, so it earns high but not perfect marks for structure.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with no output schema and no annotations, this description is not complete enough: it does not describe the returned news items, fields, ordering, or how to control recency. The two params are simple, so this is a modest gap, but the absence of return-value information makes it incomplete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema covers the symbol parameter with an example, and limit has default/range constraints, but the description adds nothing about how 'limit' behaves or what 'recent' means in terms of the response. With only 50% schema coverage and no clarification in the description, the missing parameter semantics are not compensated.
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 uses a specific verb ('Get') and resource ('recent news for a stock'), which conveys the core function unambiguously. It is clear enough to separate it from sibling quote, bars, financials, and events tools, though it does not explicitly name alternatives.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given about when to choose this tool over sibling tools such as get_company_events or get_analyst_actions. The description only states what it does, not the context or exclusions, leaving the agent to infer usage.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. 'Get' clearly indicates a read-only operation, which is honest, but the description does not disclose details such as whether results are recent or historical, how they are ordered, or what the response shape looks like.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single well-formed sentence with no filler. Every phrase adds useful meaning, and the core resource is stated immediately.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
This is a simple retrieval tool with one required parameter and a schema that covers symbol, so the description is minimally viable. However, it lacks details about return format, limit semantics, and how this tool differs from closely related analyst-focused siblings, leaving some ambiguity for an agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 50%: symbol is documented in the schema, but limit only has type/constraints and no natural-language meaning. The description does not mention or clarify either parameter, so it adds no parameter-level value beyond 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 names a specific resource and action: analyst upgrades, downgrades, and price-target changes. It is clear enough to identify the tool's purpose, though it does not explicitly contrast it with siblings like get_analyst_forecast or get_recommendation_trend.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given about when to use this tool versus alternatives such as get_analyst_forecast or get_recommendation_trend. The intended use is only implied by the description, so an agent gets no explicit routing help.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full behavioral disclosure responsibility. It only says 'Get...' and does not disclose any behavioral traits such as whether the data is a snapshot or historical, whether the symbol must already be synced, possible errors, or source limitations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
One concise sentence with no filler. It front-loads the action and then lists the key output elements, making it easy to scan and parse.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a one-parameter tool with no output schema, the description gives a reasonable picture of the return content but does not explain how this fits among the many analyst-related siblings or what behavioral assumptions hold. It is minimally viable but has clear gaps.
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%, with the single 'symbol' parameter already documented as 'Ticker, e.g. NVDA'. The tool description adds no new parameter semantics, so the baseline score of 3 applies.
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 names a specific verb ('Get'), resource ('analyst forecast'), and concrete outputs (consensus, buy/hold/sell counts, price targets). This is clear enough for an agent to know what the tool returns, though it does not explicitly contrast itself with similar siblings like get_recommendation_trend or get_analyst_actions.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided about when to use this tool versus alternatives. Given the large sibling list contains overlapping tools such as get_analyst_actions and get_recommendation_trend, the absence of selection criteria leaves the agent to infer usage.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It indicates a read-only retrieval action ('Get') and specifies the returned data scope, but it does not mention any limitations, response structure, date range behavior, or other operational details. The agent is left with only a minimal sense of what occurs.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, tightly worded sentence that front-loads the action and resource. Every word adds value; there is no redundancy or extraneous context. It is an ideal size for a simple one-parameter tool.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The single parameter is fully documented by the schema, and the description states what the tool returns. However, there is no output schema and no elaboration on the format of the dividend history/summary, time frame, or key fields, so the agent may not know exactly what to expect from the response. The description is minimally adequate but leaves gaps.
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%, with the symbol parameter already described as 'Ticker, e.g. NVDA.' The description's phrase 'for a stock' aligns with this but adds no new meaning, syntax, or constraints. The high schema coverage sets the baseline at 3, and the description does not go beyond it.
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 uses the specific verb 'Get' and clearly identifies the resource: 'dividend history and dividend summary for a stock.' It is unambiguous and naturally distinct from the sibling tools, none of which concern dividends, even though it does not explicitly differentiate itself from alternatives.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance about when to use this tool versus alternatives, nor does it mention exclusions or prerequisites. The intended usage is implied only by the tool name and the data it describes, so the agent receives no direct routing information.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description must carry the behavioral burden. It states what data is covered (buy/sell transactions) but does not disclose ordering, time range, pagination, return format, or whether the response includes transaction dates, prices, or share counts. Without annotations, this is a material gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is one concise, front-loaded sentence with no redundancies. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema and no annotations, the description should provide some detail about the returned data shape or response characteristics. It only says 'insider buy/sell transactions', leaving the agent to guess whether this returns a list, a summary, or detailed trade records. The limited parameter set keeps it from being a 1, but it is not fully callable with confidence from the description alone.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds no parameter-level meaning. The input schema already documents 'symbol' with a ticker example and gives numeric constraints for 'limit', so the description contributes nothing beyond the schema. With schema_description_coverage at 50%, the 'limit' parameter remains unexplained in prose.
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?
The description uses a specific verb ('Get') and a distinct resource ('insider (officer/director) buy/sell transactions'), clearly identifying the data scope. It effectively distinguishes from sibling tools like get_holders, get_fund_holders, and get_company_events, none of which cover insider trades.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
There is no guidance on when to use this tool instead of alternatives such as get_holders, get_company_events, or get_fund_holders. The description implies a use case for insider transactions, but it never states exclusions, prerequisites, or conditions that should route an agent to a sibling.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description carries the full burden. It does not clarify what 'by period' means, whether the result is a historical series or current summary, how the trend is calculated, or what response shape to expect. This leaves important behavioral details undisclosed.
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 a single, efficient sentence that front-loads the verb and resource. It contains no fluff, though the vague 'by period' phrase reduces clarity slightly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema and no annotations, the description should clarify the return format and the meaning of 'period.' It also does not help an agent distinguish this from similar analyst-related tools. Key contextual information 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 symbol parameter is already documented as 'Ticker, e.g. NVDA.' The description adds no new parameter meaning and even creates ambiguity by mentioning 'by period' when no period parameter exists in 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 uses a specific verb and resource: 'Get analyst recommendation trend (strong buy/buy/hold/sell/strong sell) by period.' It identifies the data being retrieved, though 'by period' is ambiguous and it does not explicitly differentiate from nearby siblings like get_analyst_forecast or get_analyst_actions.
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?
Usage is implied: an agent would call this when it needs analyst recommendation trend data. However, there is no explicit guidance about when to prefer this over alternatives such as get_analyst_forecast or get_analyst_actions, and no exclusions are provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of behavioral disclosure. 'Get' implies a read-only retrieval with no mutation, but it does not disclose output shape, pagination, or whether the result is restricted by the limit parameter. This is adequate for a simple read tool, but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is one concise sentence that front-loads the action and target. No filler words or redundant restatements of the name.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema, no annotations, and a crowded sibling list, the description is too thin. It does not clarify what differentiates institutional holders from fund holders, does not explain the effect of limit or return behavior, and provides no context for when this endpoint is appropriate.
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 coverage is 50%: symbol is documented and limit has default/min/max constraints. The description adds no parameter-specific meaning beyond the tool purpose, which makes 'limit' inferable as holder-count limiting. This is at the acceptable baseline but no more.
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 names a specific verb ('Get') and resource ('institutional holders and ownership data'), so an agent understands the primary function. It does not explicitly distinguish this from sibling tools like get_fund_holders or get_holder_breakdown, which weakens clarity.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given for when to use this tool over alternatives. The description is purely declarative and does not mention exclusions, prerequisites, or related tools such as get_fund_holders, leaving call selection to inference.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden for behavioral disclosure. It only says 'latest' and 'snapshot', implying a read-only, point-in-time view, but it does not explain what a chain includes (e.g., calls/puts, strikes), how the expiration parameter affects results, or whether all expirations are returned by default. It also omits any potential limitations or side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, front-loaded sentence with no redundant words. It efficiently states the tool's purpose and source without any filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex financial data tool (options chain) with no output schema and no annotations, the description is inadequate. It does not explain the structure of the returned data, the effect of the optional expiration parameter, or any default behavior. An agent would need to infer or experiment to understand the full scope.
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 both parameters have clear descriptions (e.g., 'Ticker, e.g. NVDA' and 'Expiration date YYYY-MM-DD'). The tool description adds no additional meaning or context beyond what the schema provides, so the baseline of 3 is appropriate.
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?
The description clearly states the tool retrieves an options chain snapshot for a stock, with the source (Yahoo). It uses a specific verb ('get') and resource ('options chain snapshot'), which distinguishes it from the sibling get_option_quote that likely retrieves a single option quote rather than the full chain.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives like get_option_quote or search_symbol. The description does not mention scenarios (e.g., needing the full chain vs. a specific option quote) or any conditions for selection.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the burden of behavioral disclosure. It does clarify that the tool returns EPS and revenue data, both actual and estimated, which is useful. However, it does not describe output structure, time ranges, forecast horizon, formatting, or any fetch limitations, leaving notable gaps for a no-annotation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, focused sentence that front-loads the primary action and resource. Every word contributes meaning, and there is no redundant or filler content.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The tool is simple with one required parameter and no output schema, and the description does state the core return content (EPS and revenue, actual vs estimate). Still, it omits details like how far back history goes, what forecast periods are covered, and whether the output is formatted per share or totals. The overlap with sibling forecast/trend tools also weakens completeness.
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?
There is only one parameter, symbol, and the schema already documents it with an example ('Ticker, e.g. NVDA'). The description adds no additional parameter-level meaning beyond the schema, so the baseline score of 3 applies given the high schema description coverage.
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 states the resource ('earnings history and forecasts') and the specific metrics ('EPS and revenue, actual vs estimate'), which goes beyond a vague 'get earnings'. However, it does not explicitly distinguish itself from closely related siblings such as get_analyst_forecast or get_earnings_trend, so it falls short of full sibling differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
There is no guidance on when to use this tool versus the overlapping sibling tools get_analyst_forecast or get_earnings_trend. The description implies usage when earnings history or forecasts are needed, but it provides no exclusions, conditions, or alternative routing, leaving selection somewhat ambiguous for an AI agent.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description carries the full behavioral disclosure burden. It only says data comes 'from the database' and does not clarify that a single statement is selected via the statement parameter, whether data is historical or delayed, or what the response shape is.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
A single sentence states the action, resource, and supported statement types with no filler. The key information is delivered up front and every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple read tool with no output schema, this is adequate but incomplete. It leaves ambiguity about whether all three statements are returned at once or exactly one is selected via the statement parameter, and it does not mention period selection or response format. Given the absence of annotations, more context would be valuable.
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 only 33% (just symbol is documented). The description adds meaning by mapping the statement enum values to 'income statement, balance sheet, cash flow', but it does not explain the period parameter, though ANNUAL/QUARTERLY are fairly self-explanatory.
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 uses a specific verb and resource: 'Get financial statements' and names the three statement types, which makes it clear what this tool retrieves. It is distinguishable from siblings like get_ratios or get_quote, though it does not explicitly name alternatives.
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?
The description implies the tool should be used when financial statements are needed, but provides no explicit guidance on when to prefer it over sibling tools such as get_ratios or get_earnings. No exclusions, prerequisites, or alternative conditions are stated.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full behavioral disclosure burden. It signals a read-only operation and names the returned categories, but it does not clarify the time horizon, calculation basis, data source, or any limitations of the ratio values.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence that front-loads the purpose and includes representative examples. Every element earns its place and there is no repetition or filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a one-parameter read tool, the description is minimally adequate for invocation: the agent knows the resource and the required symbol. However, with no output schema and no behavioral context, details about format, scope, or data interpretation are missing, making it incomplete for richer decision-making.
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?
The input schema describes the single parameter 'symbol' as 'Ticker, e.g. NVDA,' which fully covers the parameter. The description adds little to parameter understanding, but the schema already provides sufficient semantics, so a baseline score of 3 is appropriate.
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 uses a clear verb ('Get') and a specific resource ('valuation and financial ratios') and includes concrete examples like PE, PS, PB, margins, ROE, beta. It is understandable on its own, though it does not explicitly distinguish itself from sibling tools such as get_financials.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage via the tool name and the word 'Get,' but provides no explicit guidance about when to choose this tool over alternatives like get_financials or get_quote. No exclusions or conditions are stated.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description bears the full burden of behavioral disclosure. It only restates that a snapshot is retrieved; it does not mention data frequency, source, availability limitations, or response format.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
A single compact sentence with a colon-separated metric list. It is front-loaded with the main purpose and contains no filler or redundant wording.
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 simple one-parameter snapshot tool with no output schema, naming the returned metrics provides solid context. Minor gaps remain around metric interpretation and data-availability caveats, but the essential call is clear.
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?
The only parameter, symbol, is already fully documented in the schema with an example ticker. The description adds no further semantic detail, so it stays at the baseline for good schema coverage.
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?
The description names a specific resource ('short interest snapshot') and enumerates the exact metrics returned (shares short, short ratio, % of float, days to cover). This concretely distinguishes it from sibling data tools like get_quote or get_holders.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided about when to use this tool versus alternatives, or how to handle cases where short interest data might be unavailable. The agent must infer usage solely from the tool name.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the transparency burden. It does disclose the core behavioral output—aggregate percentages and float information—but it does not mention read-only status, output shape, data freshness, or ambiguity around what 'count' refers to. It is minimally transparent but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
A single, front-loaded sentence with zero filler. It states the main purpose first and then lists the specific data points, making efficient use of the available space.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple one-parameter tool with no output schema and no annotations, the description gives the essential return fields but leaves ambiguity around 'count' and lacks any usage context. It is adequate for basic invocation but not fully complete.
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 coverage is 100% with a clear description of the only parameter (symbol), so the baseline is 3. The tool description adds no additional meaning about the parameter beyond what the schema already provides.
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?
The description uses a specific verb ('Get') and resource ('ownership structure') and elaborates on exactly what is returned: insider %, institutional %, float % and count. This distinguishes it clearly from sibling tools like get_holders or get_fund_holders, which imply more detailed holder lists.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided about when to use this tool versus alternatives such as get_holders, get_fund_holders, or get_insider_transactions. The description states what it does but gives no context-specific selection criteria, exclusions, or alternative routes.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It reveals the data source but does not mention ordering, whether weights are normalized, error behavior for invalid sectors, pagination, or the return shape. This is thin for a tool with no annotation support.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
A single sentence that immediately states the action, object, and data source. It is compact and front-loaded with no filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple getter with two parameters, the description is minimally adequate: it names the resource and the source of the data. But with no annotations and no output schema, the lack of return-shape details, ordering guarantees, and sibling differentiation leaves meaningful gaps.
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 coverage is 50%: the 'sector' parameter is well described in the schema, and 'limit' has constraints but no description. The tool description adds context that these are 'top constituents with weights,' which helps, but it does not explicitly explain the limit behavior beyond what the schema's default and maximum already imply.
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?
The description uses a specific verb ('Get') and a specific resource ('a sector's top constituents with weights'), and clarifies the data source ('the sector ETF's topHoldings'). This clearly distinguishes it from siblings like list_sectors and get_sector_performance.
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?
The purpose implies when to use it—whenever a caller needs the top holdings or constituents of a sector. However, it provides no explicit guidance on when not to use it or which sibling alternative to prefer, such as get_fund_holders for general fund holdings.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the behavioral burden. It adds useful context that the search operates on 'locally stored' instruments and matches either symbol or name. However, it does not disclose matching behavior (exact vs. fuzzy), case sensitivity, whether partial matches are allowed, or what happens when no match is found.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single compact sentence that leads with the operation and resource, then adds the search keys. There is no filler, and every word contributes meaning.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The tool is simple: one required parameter, fully documented in the schema, with no output schema. However, because there is no output schema, the description should explain what the search returns (e.g., matching instruments, symbols, or identifiers), and it does not. It also omits any precondition such as needing to sync data first, making the description adequate but incomplete.
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 coverage is 100%, and the schema already describes 'query' as 'Symbol or name fragment, e.g. NVDA or NVIDIA.' The description only repeats 'symbol or name' without adding new semantic detail, so the baseline of 3 is appropriate.
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 states a specific verb ('Search') and resource ('locally stored instruments') and identifies the search keys (symbol or name). It is clearly distinct from the get_*/sync_* siblings, though it does not explicitly name any sibling or contrast itself with them.
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?
The phrase 'locally stored' implies this searches cached/local data rather than a remote endpoint, but the description never says when to use this tool versus alternatives or when not to use it. There is no explicit guidance about using it to resolve a symbol before calling get_quote/get_bars, or about the relationship with sync_stock.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden and does disclose the key behavioral scope: it returns forward-looking events, not historical records. However, it does not describe absence behavior, whether dates are estimates, or how the response is ordered/paginated, leaving several behavioral details unstated.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence, front-loaded with the main action and scope, and no filler. The list of event types is compact while still conveying the tool's content.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The output content is partially specified via the event-type list, but with no output schema or annotations, key context is missing: how limit affects results, ordering, what happens when no events exist, and whether the dates are estimates. Adequate for a simple tool, but with clear gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 50%: symbol is described but limit has only constraints, not a description. The tool description does not compensate by explaining limit's effect on the event list, so the limit parameter remains under-specified in both schema and description.
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?
The description uses a specific verb ('Get') and a well-defined resource ('forward-looking company events'), then enumerates the exact event types returned. The term 'forward-looking' also distinguishes it from historical siblings like get_earnings and get_dividends.
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?
The phrase 'forward-looking' implies this tool is for upcoming events, but it never explicitly tells the agent when to prefer this over get_earnings or get_dividends, nor does it state any when-not conditions. No alternative tool is named.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden, and it does disclose the data points returned. However, it does not mention operational behaviors like read-only safety, data freshness, potential errors, or any rate limits, so the transparency is only partial.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, tightly written sentence that front-loads the main purpose and then lists the returned fields. Every word earns its place, with no repetition or filler.
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 simple single-parameter read tool, the description is largely complete: it names the input and the content of the output. It does not describe response structure or error behavior, but the absence of an output schema and the simplicity of the tool keep this from being a significant gap.
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?
The only parameter, symbol, is already described in the schema as 'Ticker, e.g. NVDA' with 100% schema coverage. The tool description does not add further parameter meaning, so the baseline of 3 is appropriate.
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?
The description names a specific verb and resource ('Get company profile') and enumerates the exact contents: business summary, sector, industry, employees, address, contact info. This clearly distinguishes it from sibling tools like get_quote or get_financials.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given about when to choose this tool over alternatives such as search_symbol, get_quote, or get_financials. The description implies the use case from the tool's name, but it never explicitly states selection criteria or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden. It explicitly states the tool returns a quote with price, 52-week range, key ratios, and dividend summary, which is useful behavioral information. However, it does not disclose whether the quote is delayed/real-time, whether currency is included, or any other access/rate considerations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence that front-loads the action and resource and then lists the returned data categories. Every word earns its place; there is no filler or repetition.
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 simple one-parameter read-only tool with no output schema, the description provides a good list of return content. It does not explain the exact shape of the output or whether some fields may be null, but given the tool's low complexity, the description is sufficiently complete for an agent to select and invoke it.
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?
The input schema already fully documents the only parameter (symbol) with an example (NVDA). The description adds meaning by confirming that the quote is for a stock and implies the symbol is a ticker, which supports the schema. Since schema description coverage is 100% and there is only one parameter, the description adds a small but meaningful layer.
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 states a clear verb ('Get') and resource ('latest quote for a stock') and lists the specific data categories returned (price, 52-week range, key ratios, dividend summary). It distinguishes this tool from siblings like get_bars, get_financials, get_ratios, and get_dividends by indicating it returns a consolidated snapshot of quote data, but it does not explicitly name any sibling or contrast itself.
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?
The description implies this is the tool to use when you need a broad current quote snapshot rather than historical bars (get_bars), detailed financial statements (get_financials), or standalone ratios/dividends (get_ratios, get_dividends). However, it does not explicitly state when to prefer it over get_profile or get_analyst_forecast, and it offers no exclusion or when-not-to-use guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full behavioral disclosure burden. It clearly states the side effect of syncing into a local MySQL database and defines the scope of each mode, but it does not disclose whether the sync overwrites existing data, whether it is idempotent, or any performance/rate-limit considerations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two short sentences with no filler. The primary action is front-loaded, and the mode semantics are compactly conveyed in a single clause. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The operation is simple and the core behavior is clear, but with no output schema and no annotations, there is no mention of return values, status reporting, or failure behavior. It is minimally viable for a 3-parameter tool but leaves some practical details unspecified.
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?
Schema coverage is 67%, so the schema already handles 'symbol' and 'intraday'. The description adds genuinely useful semantics for the 'mode' parameter by defining 'full' and 'incremental', which the schema's enum alone does not explain. This goes beyond the baseline for parameter documentation.
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?
The description uses a specific verb ('Sync'), a resource ('a stock'), and a destination ('local MySQL database'), making the tool's function immediately clear. It also explains the two modes ('full' vs 'incremental') in concrete terms, which further distinguishes the operation from the read-only sibling tools like get_bars.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains the meaning of 'full' and 'incremental' but gives no explicit guidance on when to choose this tool over alternatives such as get_bars or sync_sectors. There are no when-to-use or when-not-to-use conditions, leaving the agent to infer the appropriate context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. 'Get' signals a read operation and 'historical' frames the data scope, but it does not disclose ordering, pagination, date inclusivity, or output format. Adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
One short, front-loaded sentence with no filler. It captures the action, resource, data type, and interval scope efficiently.
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?
Despite having no output schema or annotations, the description gives enough to select and call the tool for historical daily/weekly/monthly bars. Minor gaps remain around response format and default behavior, but the schema covers defaults and limits.
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?
At 60% schema coverage, the schema already documents symbol, dates, and the interval enum. The description adds OHLCV meaning and supported intervals but does not clarify limit semantics or date handling beyond what the schema provides.
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 ('Get'), a concrete resource ('historical OHLCV bars'), and the supported intervals ('1d/1wk/1mo'). This clearly distinguishes it from sibling tools like get_intraday_bars and get_quote.
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?
The historical daily/weekly/monthly focus implies when to use it, but the description does not explicitly say when to prefer it over get_intraday_bars or get_quote. No exclusions or alternative-selection guidance are provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It does disclose the output composition (estimates, growth, revisions), but it omits details such as the number of quarters covered, how revisions are computed, and the response shape. Acceptable but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single front-loaded sentence with a colon-separated list of included data. Every word contributes and there is no filler.
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 one-parameter read-only tool with no output schema, the description is nearly sufficient: it tells the agent what kind of data will be returned and names the key fields. It only lacks explicit response formatting or periodicity details, which are minor for correct invocation.
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?
The only parameter, symbol, is already fully documented in the schema with a 100% coverage and an example. The description adds no additional parameter-level meaning, so the high-coverage baseline of 3 is appropriate.
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?
The description uses a specific verb and resource: 'Get quarterly earnings estimate trend', and it enumerates the content (EPS/revenue estimates, growth, recent revisions). This clearly distinguishes it from siblings like get_earnings, get_analyst_forecast, and get_recommendation_trend.
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?
The intended use is implied by the resource name and content, but the description does not state when to use this tool versus get_analyst_forecast, get_earnings, or other siblings. No alternatives or exclusions are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The verb 'List' implies a read-only retrieval with no side effects, but the description does not disclose data source, freshness, or response behavior. With no annotations available, the description carries the full burden and provides only minimal behavioral transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single concise sentence with the verb and resource front-loaded. It contains no filler and conveys the essential scope and output mapping efficiently.
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 low-complexity, parameterless tool, the description adequately conveys what the tool returns: sector names, the benchmark, and the SPDR ETF mapping. Since there is no output schema, a bit more detail about response format would improve completeness, but the description is sufficient for selecting and invoking the tool.
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?
The tool has zero parameters, so the input schema fully covers the input side. The description adds nothing about parameters, but none is needed; the baseline for zero-parameter tools is 4.
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?
The description uses a specific verb ('List') and a clear resource ('GICS sector catalog'), then details the exact contents: 11 sectors plus the S&P 500 benchmark, mapped to SPDR sector ETFs. This clearly distinguishes it from siblings like get_sector_members or get_sector_performance.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given about when to use this tool versus alternatives such as get_sector_members, get_sector_performance, or sync_sectors. The intended use is implied by the name and description, but there is no explicit when-to-use or when-not-to-use instruction.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the disclosure burden. It does add meaningful behavioral context: it syncs quotes and approximately 30 days of bars, and includes a toggle to skip constituent refresh. However, it does not disclose whether the sync overwrites, appends, or updates existing data, nor any side effects, permissions, or failure behavior. This is reasonable but incomplete for a write/sync operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, focused sentence that front-loads the core purpose and then explains the key parameter behavior. There is no redundant wording, and every phrase adds information.
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 simple tool with one optional boolean parameter and no output schema, the description covers the essential scope and the parameter effect. It mentions the data types synced (quotes, bars, constituents) and the optional refresh behavior, which is sufficient for an agent to invoke the tool correctly in most cases. Minor gaps remain around return values and database update semantics, but these are not critical given the tool's simplicity.
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?
The input schema already provides 100% coverage with a clear description for the 'members' parameter. The description's 'members=false skips constituent refresh' restates the schema's meaning in a slightly more operational way, adding marginal value. Since the schema is already comprehensive, a baseline of 3 is appropriate.
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?
The description clearly identifies the operation ('Sync'), the resource ('all GICS sector ETFs'), and the scope ('quote, ~30d bars, top-holding constituents'). It also differentiates from sibling tools by focusing on sector-level synchronization rather than a single stock or read-only data retrieval.
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?
The description implies when to use this tool—when you need sector ETF data synced into the database—but it does not explicitly contrast it with alternatives like sync_stock or read-only tools such as get_quote or get_sector_members. The 'members=false' note gives a usage hint for the optional parameter, but no explicit when-to-use vs when-not-to-use guidance is provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description carries the full behavioral burden. It usefully discloses that the data is stored locally in the database and that a sync step is required to seed it, which is meaningful context. However, it does not describe the return shape, ordering, timezone handling, or behavior when no data exists for the requested range.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two short sentences with no filler. The core purpose and supported intervals are front-loaded, and the prerequisite sync instruction is added in a second sentence, making the description easy to scan and directly actionable.
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?
Given the 5-parameter schema, no output schema, and no annotations, the description does enough by identifying the data source and the sync prerequisite. It could be more complete by explicitly pointing to get_bars for non-intraday data or stating the response format, but the description covers the most important operational context for calling this tool correctly.
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 60%, so the schema covers symbol, from, and to but not limit or interval. The description adds the list of valid intervals and connects them to sync_stock modes, which helps infer parameter usage, but it does not explain limit or the default interval beyond what the schema already provides. This is adequate but not compensating.
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?
The description uses a specific verb ('Get') and resource ('intraday OHLCV bars') and enumerates the supported intervals, which clearly identifies what the tool returns. It also distinguishes itself from get_bars and sync_stock by emphasizing intraday data stored in the database rather than pulling or syncing data.
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?
The description gives clear contextual guidance by noting that sync_stock must be run with mode=intraday_15m etc. to populate the database first. It does not explicitly state when-not to use this tool or name get_bars as the alternative for daily bars, so it falls short of a 5.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It reveals key behavior: the tool contacts Yahoo directly, operates on-demand, and avoids DB sync. It also discloses the scope of returned data. It does not cover potential rate limits or error behavior, but the most important behavioral traits are clearly stated.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single front-loaded sentence that immediately states the action, source, and key differentiator ('directly from Yahoo, on-demand, no DB sync needed'). The colon-separated details are compact and information-dense, with no redundant filler or repetition of schema defaults.
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?
Given there is no output schema, the description does a good job of compensating by listing exactly what data will be returned: underlying quote, available expirations/strikes, and per-contract metrics. Combined with the fully self-describing input schema, this gives an agent enough context to invoke the tool correctly and interpret results. Minor gaps like pagination behavior are not critical for a query tool of this scope.
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%, so all five parameters already have meaningful descriptions in the schema. The tool description adds minimal extra parameter-level meaning beyond noting that expirations/strikes are 'available' and that per-contract fields are returned. This aligns with the baseline of 3 for high schema coverage.
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?
The description uses a specific verb ('Fetch live options quotes') and clearly identifies the resource (options quotes for a stock from Yahoo). It also distinguishes itself from sibling tools by emphasizing 'on-demand, no DB sync needed' and enumerating included data (underlying quote, expirations/strikes, per-contract bid/ask/last/volume/open interest/IV). This is unambiguous and distinguishable from nearby tools like get_options.
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?
The description clearly conveys the usage context: it is a live, on-demand fetch directly from Yahoo and does not require a database sync first. This helps an agent understand when to prefer this tool over syncing workflows. However, it does not explicitly name alternatives or state when NOT to use it, so it stops short of a full when/when-not comparison.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full behavioral burden. It transparently discloses the return contents (latest price, 1d/5d/20d returns), the universe (all GICS sector ETFs), the ordering (ranked by 1-day change), and the inclusion of the SPY benchmark. It does not mention data freshness or error conditions, but the core behavior is well disclosed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
A single sentence efficiently front-loads the purpose and packs in the scope, metrics, sort order, and benchmark without any wasted words. Every element adds value.
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 no-parameter, no-output-schema tool, the description is highly complete: it tells the agent what data is included, how it is sorted, and that a benchmark is present. It does not enumerate exact field names, but that is not essential given the simple and well-described output.
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?
The tool has zero parameters, so no parameter documentation is needed; the baseline is 4. The description adds context about the output universe and benchmark, which is helpful but not parameter-related.
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?
The description clearly states a specific verb and resource: it provides a sector rotation view with latest price and 1d/5d/20d returns for every GICS sector ETF, ranked by 1-day change, plus the SPY benchmark. This distinguishes it from siblings like list_sectors, get_sector_members, and get_quote by specifying the exact output and scope.
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?
The phrase 'Sector rotation view' implies a use case, but the description does not explicitly state when to use this tool versus alternatives such as get_sector_members or list_sectors. There is no clear when-to-use or when-not-to-use guidance, leaving the selection largely to inference.
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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