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koios_policy_asset_list

Returns all assets minted under a given policy ID. Use it to query Cardano on-chain data for assets associated with a specific policy.

Instructions

Get a list of all assets minted under a given policy

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMax results per page (1-1000)
orderNoColumn ordering
offsetNoPagination offset
selectNoComma-separated column names for vertical filtering
_asset_policyYesAsset policy ID (hex)
Behavior2/5

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

With no annotations, the description carries the full burden. It only states the action and resource, but doesn't disclose pagination behavior (despite limit/offset parameters), whether all results are returned at once, or any other operational characteristics.

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 filler, making it highly concise and readable.

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?

The tool has five parameters and no output schema, yet the description offers no information about pagination, response format, or ordering. An agent would need to infer behavior from the schema alone, leaving gaps 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 input schema already provides descriptions for all five parameters, so the description adds no further parameter semantics. The phrase 'under a given policy' maps to _asset_policy but doesn't enrich the schema 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 resource ('all assets minted under a given policy'), clearly distinguishing it from sibling tools like koios_asset_list or koios_policy_asset_mints by specifying the policy filter.

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?

No explicit usage guidance is provided. The description implies it is the tool to use for retrieving assets by policy, but it does not mention when to prefer it over similar sibling tools (e.g., koios_policy_asset_mints) or any exclusions.

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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