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Galactic

by io.github.masonicGIT
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search_news

Read-only

Search approved galactic.inc newsroom items.

Call this for recent headlines about an asset, an issuer, or a topic. Items that are not approved are omitted. The response has no source URL.

JSON: {"matched", "items": [{id, date, category, headline, lede, assets}]}. assets is a list of tickers. date is YYYY-MM-DD. limit defaults to 8.

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": "search_news"
  }
}

Input Schema

NameRequiredDescriptionDefault
limitNoMaximum items to return, from 1 to 30.
queryNoCase-insensitive substring of headline, lede, category, or asset ticker. Empty returns the latest approved items.
response_formatNomarkdown (default) is a compact reading form. json is the object described below, with source numbers and omitted fields left out.markdown

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already cover the safety profile (readOnly, non-destructive, closed-world), and the description adds genuinely useful behavior: unapproved items are silently omitted and the response carries no source URL. The default markdown-vs-json rendering distinction is also disclosed, going beyond what annotations provide.

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?

Front-loaded with the verb+resource, then usage, then response shape. Efficient overall, though the inline JSON sketch is slightly dense for a description and the 'limit defaults to 8' line repeats the schema.

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

Completeness5/5

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

With no output schema, the description carries the return-value burden and does so: it names the matched/items envelope, the per-item fields (id, date, category, headline, lede, assets), the date format, and the ticker list. An agent has everything needed to call and interpret it.

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 description coverage is 100%, so the schema already documents all three parameters including the case-insensitive substring semantics and the 1-30 limit range. The description only restates the limit default and adds return-value structure, not parameter meaning beyond the schema, so baseline 3 applies.

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?

States a specific verb (search) and resource (approved galactic.inc newsroom items) plus the scope qualifier 'approved'. No sibling tool (compute_vaults, get_asset, gpu_price_index, list_assets, market_totals) competes with news retrieval, so an agent can route unambiguously.

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?

"Call this for recent headlines about an asset, an issuer, or a topic" gives a clear triggering context and names the accepted query subjects. There is no explicit when-not or named alternative, but the sibling set contains no overlapping tool, so the guidance is sufficient in practice.

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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