Prediction market intelligence
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Average 3.3/5 across 3 of 3 tools scored.
Each tool has a clear, distinct purpose: browsing markets, getting details on a specific market, and fetching trending predictions. No overlap or ambiguity.
All tool names follow a consistent verb_noun pattern ('browse_prediction_markets', 'get_market_details', 'get_trending_predictions').
Three tools is appropriate for a focused prediction market server, covering primary read operations without unnecessary bloat.
Covers core read operations (browse, details, trending) but lacks advanced filters or search by market ID, which are minor gaps for informational use.
browse_prediction_marketsBInspectBrowse prediction markets from Polymarket and Manifold. Filter by category (crypto, politics, sports, economics, science, entertainment, pop-culture) or search by keyword.
| Name | Required | Description | Default |
|---|---|---|---|
| q | No | Keyword search | |
| tag | No | Category filter (crypto, politics, sports, economics, science, entertainment, pop-culture) | |
| limit | No | Number of results (default 20, max 50) | |
| source | No | polymarket, manifold, or all (default: all) | all |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must disclose behavioral traits. It mentions the data sources (Polymarket, Manifold) and filtering options, but lacks details on authentication, rate limits, default behavior (e.g., returns all markets if no filters), or result structure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, front-loaded with purpose, followed by filter options. Every word adds value with no fluff.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Despite 4 parameters and no output schema, the description omits key context: default behavior when no filters are applied, result format, and pagination. For a browsing tool, this leaves an agent without enough information to understand the full output or navigate common use cases.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with descriptions for all four parameters. The description repeats some parameter info (category filter, keyword search) but adds no substantial new meaning beyond the schema. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool browses prediction markets from two specific platforms (Polymarket and Manifold) and supports filtering by category or keyword. This verb+resource combination is precise and distinguishes it from sibling tools like get_market_details and get_trending_predictions.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for searching and filtering prediction markets, but does not explicitly state when to use this tool over siblings (e.g., for lists vs. details or trending). No when-not or alternative guidance is provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_market_detailsBInspectGet detailed information for a specific prediction market including prices, outcomes, and trading volume.
| Name | Required | Description | Default |
|---|---|---|---|
| id | No | Market ID or condition_id. If not provided, returns the highest volume active market. | |
| source | No | polymarket or manifold (default: polymarket) | polymarket |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry full weight. It discloses that it returns prices, outcomes, and trading volume, but does not mention read-only status, rate limits, authentication needs, or caching behavior. Adequate but incomplete.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence of 15 words, no unnecessary words, directly communicates purpose and sample output. Ideal conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema exists, so description should explain return values. It mentions prices, outcomes, and trading volume but omits structure, format, and the default behavior (if no id, returns highest volume active market). Adequate but with gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds no additional meaning beyond the schema for parameters; it lists output fields but not parameter-specific details.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Get' and resource 'detailed information for a specific prediction market', listing example fields (prices, outcomes, trading volume). It distinguishes from sibling tools by implying a specific market rather than browsing or trending, but does not explicitly differentiate.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives like browse_prediction_markets or get_trending_predictions. The description does not mention use cases, prerequisites, or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_trending_predictionsBInspectGet what the prediction markets are betting on right now. Fetches top markets by volume/liquidity.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Number of results (default 10, max 50) | |
| source | No | polymarket, manifold, or all (default: all) | all |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the full burden. It only states the basic behavior (fetches top markets by volume/liquidity) but lacks disclosure of traits like read-only nature, rate limits, pagination, or what exactly is returned (e.g., market summaries vs full details).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise with two sentences, front-loading the core purpose. Every word contributes value with no unnecessary filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple tool with no output schema and only two parameters, the description is minimally adequate. However, it lacks details about the return format (e.g., is it a list of market IDs or summaries?) which could hinder an AI agent's understanding of the output.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, with both parameters (limit, source) already well-described in the schema. The description adds context about 'volume/liquidity' but does not significantly enhance parameter understanding beyond what the schema provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Get' and the resource 'what the prediction markets are betting on right now', and specifies the method 'Fetches top markets by volume/liquidity'. It distinguishes from sibling tools like 'browse_prediction_markets' and 'get_market_details' by focusing on trending predictions, though not explicitly.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description does not provide any guidance on when to use this tool versus alternatives (e.g., 'browse_prediction_markets' for all markets or 'get_market_details' for specific ones). No when-to-use, when-not-to-use, or alternative context is given.
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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