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satstream

Satstream MCP Server

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address_outputs_get

Retrieve unspent transaction outputs (UTXOs) held by a Bitcoin address. Optionally filter by type to analyze available outputs for spending or further processing.

Instructions

Retrieve UTXOs (unspent transaction outputs) held by a specific Bitcoin address with optional type filtering. Use this to get detailed information about available UTXOs for spending or analysis.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
typeNo
addressYes
Behavior3/5

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

No annotations provided; description implies read-only operation but does not explicitly disclose behavior such as pagination, rate limits, or output structure. Lacks depth for a retrieval tool.

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?

Two sentences, front-loaded with key action and resource, no extraneous text. Efficient but could benefit from a hint about output details.

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?

Given 2 params, no output schema, and 37 sibling tools, description covers basic purpose and filtering but lacks information about return value (e.g., txid, vout, amount) and any constraints or defaults.

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 0%; description mentions 'address' and 'optional type filtering' but does not explain that address is required, enum values for type, or add meaning beyond the schema.

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?

Description clearly states the verb 'Retrieve' and resource 'UTXOs held by a specific Bitcoin address', distinguishing it from sibling tools like address_balance_get or address_deltas_get.

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?

Provides a use case ('for spending or analysis') but does not explicitly state when not to use or compare with alternatives like address_balance_get or output_get.

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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