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surewht

ti4-mcp

by surewht

get_tech

Retrieve full details for a Twilight Imperium 4 technology by its identifier, including expansion-specific data when expansions are provided.

Instructions

Get details about a specific technology.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tech_idYesTechnology identifier
expansionsNoActive expansions. If omitted, uses game context or defaults to base game. Options: base, pok, codex-1, codex-2, codex-3, codex-4, thunders-edge

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.6/5.0
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 burden of behavioral disclosure. It does not mention whether this is a read-only operation (though strongly implied), whether it requires game context, rate limits, or anything about the return format. For a lookup tool with zero annotation coverage, 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, efficient sentence with no wasted words. It is appropriately sized but very sparse.

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?

With no annotations and no output schema, the description should do more to explain behavior, especially around the expansions parameter and how it interacts with game context. The tool is simple (2 params), but the lack of any behavioral context leaves gaps for an agent.

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 baseline is 3. The description adds no parameter information beyond what the schema already documents, but it doesn't need to—the schema fully describes tech_id and expansions. No credit or penalty.

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 states a clear verb (Get) and resource (technology details), which is adequate. However, it offers no differentiation from siblings like get_tech_path, which likely returns a related but distinct resource (tech path), leaving ambiguity about which tool to call for what.

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?

There is no guidance on when to use get_tech versus get_tech_path or other retrieval tools. The description provides no context, prerequisites, or exclusions to help an agent select correctly.

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