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bca-mcp

bca-mcp

by blockchainacademics
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

list_topics

Browse BCA's topic taxonomy covering regulation, DeFi, infrastructure, memecoins, security, and more to discover valid filter values for searching news.

Instructions

Browse the BCA topic taxonomy (regulation, defi, infra, memecoins, security, etc.). No required fields. Use to discover valid filter values for search_news.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_topics"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.3.1

TDQS

A4.2/5.0
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. The description implies a read-only operation ('Browse'), which is transparent. However, it does not explicitly confirm no side effects, state changes, or output behavior beyond the implied list. A score of 3 is appropriate as it covers basic transparency but lacks explicit statements about idempotency or safety.

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 extremely concise with only two sentences. The first sentence immediately states the tool's purpose, and the second provides a concrete usage example. Every sentence adds value without redundancy.

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 no parameters and no output schema, the description is mostly complete. It explains the tool's functionality and a primary use case. It could be improved by explicitly stating the return format (e.g., 'returns a list of topic strings'), but the current description is sufficient for an agent to understand and use the tool correctly.

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?

There are no parameters, and schema coverage is 100% (empty object). Per guidelines, baseline is 4 for zero parameters. The description adds meaning by explaining what the tool does, making it a clear and useful entry point. No additional parameter detail is needed.

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's purpose: browsing the BCA topic taxonomy with examples of topics (regulation, defi, infra, memecoins, security, etc.). It distinguishes itself from sibling tools by focusing specifically on topic taxonomy navigation, which is unique among list_* tools.

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 explicitly states a primary use case: 'Use to discover valid filter values for search_news.' This provides clear guidance on when to employ this tool. It does not explicitly state when not to use it or alternative tools, but the guidance is sufficient for a simple taxonomy browser.

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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