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devinwang

google-play-developer-mcp

by devinwang

expansion_files_patch

Update expansion file metadata for an Android app. Modify file size or referenced version for a specific APK and expansion type.

Instructions

Partial update of expansion file metadata.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
packageNameYesAndroid application package name, e.g. com.example.app
editIdYesEdit id returned by `edits_insert` — required for all edits.* writes
apkVersionCodeYes
expansionFileTypeYes
fileSizeNo
referencesVersionNo
Behavior2/5

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

No annotations provided; description only mentions 'partial update' without disclosing behavioral traits like idempotency, permission requirements, or 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.

Conciseness4/5

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

Single sentence, concise but lacks structured information; front-loaded yet minimal.

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?

No output schema and no description of return values; for a tool with 6 parameters, more context is needed.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is low (33%), and description does not add meaning beyond the schema for parameters like apkVersionCode or expansionFileType.

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?

Description clearly states it performs a partial update of expansion file metadata, distinguishing it from full update sibling tools like expansion_files_update.

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 over alternatives; lacks context on prerequisites or appropriate scenarios.

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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