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CC3-0

CoinCap MCP Server

by CC3-0

agentFriendly_ta_slug_sma

Calculate Simple Moving Average (SMA) for any cryptocurrency asset using specified window size and timeframe. Supports various intervals from 1 minute to 1 day.

Instructions

Get Simple Moving Average for technical analysis

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
slugYesAsset slug (e.g., bitcoin)
windowNoSMA window size
fetchIntervalNoTimeframe for price bars
Behavior2/5

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

The description does not disclose any behavioral traits beyond the basic function. With no annotations, it fails to mention whether the tool has side effects, rate limits, or if it is read-only. This is a significant gap.

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 concise sentence with no wasted words. However, it could be slightly more informative without losing conciseness.

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 the tool has three parameters, no output schema, and many similar siblings, the description is too sparse. It does not explain what SMA is, the meaning of 'window', or the return format, leaving the agent with incomplete information.

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 provides clear descriptions for all three parameters (100% coverage). The description adds no additional meaning beyond what the schema already states, 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.

Purpose5/5

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 'Simple Moving Average', with context 'for technical analysis'. It effectively distinguishes this tool from sibling TA tools like EMA and MACD.

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 SMA over alternatives (e.g., EMA, RSI) or any prerequisites. The description is too minimal to help an agent decide between this and similar tools.

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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