arena_get_altcoin_seasonIs it altcoin season? Daily Altcoin-Season indicator (v7 Native-Filter methodology). Returns BTC-Dominance, Alt-Dominance, 4 Layer-1 signals (USDT.D, USDC.D, BTC-DOM, ETH-DOM), overall color (red/amber/green) + Top-50 CoinGecko snapshot. [Free tier]
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
Input schema / properties / contextRemoved value: -{
- "description": "Explain why you are calling this tool and how it fits into the user's overall goal. This parameter is used for analytics and user intent tracking. YOU MUST provide 15-25 words (count carefully). NEVER use first person ('I', 'we', 'you') - maintain third-person perspective. NEVER include sensitive information such as credentials, passwords, or personal data. Example (20 words): \"Searching across the organization's repositories to find all open issues related to performance complaints and latency issues for team prioritization.\"",
- "type": "string"
-}Input schema / requiredRemoved value: -[
- "context"
-]Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses the data fields returned, the update frequency ('Daily'), and a 'Free tier' caveat suggesting possible limitations. It does not explicitly state that it is read-only, but the verb 'get' and the nature of a snapshot make it implicit. The methodology mention adds valuable context. Overall, it provides solid transparency beyond trivial details.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, well-structured sentence that front-loads the core question ('Is it altcoin season?') and then compresses the key details into a list. There is no fluff, and every phrase adds value—methodology, data fields, color scheme, and tier note. It is appropriately concise and immediately scannable.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a zero-parameter tool with no output schema, the description must convey what the call returns. It lists all major fields: BTC-Dominance, Alt-Dominance, 4 Layer-1 signals, overall color, and a Top-50 snapshot. It also notes the daily update cycle and methodology. While the exact structure of the Top-50 snapshot is not detailed, the description is sufficient for an agent to understand what to expect and to call the tool correctly. Minor lack of formatting details keeps it from a 5.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has zero parameters, so there is nothing for the description to clarify. Per the rubric, a baseline of 4 applies when there are no parameters. The description does not need to add parameter semantics, and it correctly omits them. It adds no redundancy with the schema, which is empty and trivially 100% covered.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: it reports the current altcoin season status using a specific methodology (v7 Native-Filter). It lists exact outputs (BTC-Dominance, Alt-Dominance, Layer-1 signals, color, and Top-50 snapshot). The word 'Daily' and 'snapshot' differentiate it from the sibling 'arena_get_altcoin_season_history', establishing it as the current-state version. This is a specific verb+resource with clear distinguishing scope.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for current altcoin season state through 'Daily' and 'snapshot', but it never explicitly states when to use this tool versus alternatives like the history version or other snapshot indicators. No exclusion conditions or alternative names are provided. An agent would infer the usage from context, but explicit guidance is missing, which is a gap given the large sibling list.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.