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GMPSignal Real-Time Intelligence MCP

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OverviewDiscussionsAdmin

hackernews_devto_tech_launch_sentiment_radar

HackerNews & Dev.to Tech Launch Sentiment Radar: Monitors trending developer launches, discussions, and sentiment across HackerNews and Dev.to.

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": "hackernews_devto_tech_launch_sentiment_radar"
  }
}

Input Schema

NameRequiredDescriptionDefault
maxResultsNoMaximum number of structured items to extract.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden. It says the tool monitors sources but does not disclose read-only behavior, data freshness, rate limits, authentication needs, or what the returned structured items contain.

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 definition is a single front-loaded sentence with no wasted clauses. The only minor inefficiency is that it repeats the tool name as a prefix before stating the actual behavior.

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?

For a two-source sentiment radar with no output schema and no annotations, the description is thin. It does not explain the time window, how sentiment is determined, what structured items look like, or how HackerNews and Dev.to results are combined.

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?

There is one optional parameter, maxResults, and the schema description coverage is 100%, so the schema already explains it fully. The description adds no additional meaning about how maxResults affects extraction or output.

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

Purpose4/5

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

The description states a specific monitoring function over two named sources and lists the content types: trending developer launches, discussions, and sentiment. It is clear what the tool does, but it does not explicitly distinguish itself from the many sibling radar/scraper tools.

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?

The description implies the tool is for tracking developer launch sentiment on HackerNews and Dev.to, but it gives no explicit when-to-use guidance, prerequisites, or alternatives. An agent must infer the use case from the purpose statement alone.

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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