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CC3-0

CoinCap MCP Server

by CC3-0

ta_slug_sma

Calculate the full simple moving average (SMA) series for any cryptocurrency asset using historical price data with customizable window and timeframe.

Instructions

Full SMA series

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
slugYesAsset slug (e.g. bitcoin)
startNoStart timestamp in ms
endNoEnd timestamp in ms
windowNoSMA window size (default: 5)
fetchIntervalNoTimeframe for price bars
includeOriginalNoInclude original price data
Behavior1/5

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

No annotations are provided, and the description offers no behavioral traits such as computational cost, rate limits, data range constraints, or whether it is a read-only operation. It does not disclose what the output contains or any side effects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise (3 words), but this brevity sacrifices necessary detail. It is front-loaded but does not fully earn its place as it provides minimal information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given 6 parameters, no output schema, and no annotations, the description is completely inadequate. It does not explain the output format, the effect of parameters like window or fetchInterval, or how the tool fits into the broader set of TA tools.

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?

Schema coverage is 100%, so the schema already documents all parameters. The description adds no additional meaning beyond the schema, hence baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'Full SMA series' indicates it returns the full Simple Moving Average series over time, distinguishing from 'latest' versions, but lacks a clear verb and does not specify the resource or differentiate from other TA tools like EMA, RSI, etc.

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 on when to use this tool versus alternatives such as other indicators or the 'latest' variants. Lacks context for choosing between full series and latest, or between SMA and other TA tools.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

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