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Glama

android_apps

Read-onlyIdempotent

List Android apps and package names, optionally filtered by label or package, to locate the target app for UI automation or interaction.

Instructions

List launchable applications and package names, optionally filtered by label or package.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNo
queryNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.6.0

TDQS

A4/5.0
Behavior3/5

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

Annotations already establish the read-only, idempotent, non-destructive profile. The description adds the 'launchable' scope and label/package filtering semantics, but it does not describe matching behavior, sorting, pagination, or how the query interacts with the limit parameter.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

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

One front-loaded sentence with no filler. It states the action, the resource, and the optional filter in a compact, easily parseable form.

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

Completeness4/5

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

For a simple list tool, the description is sufficiently complete: it indicates what is returned and when filtering applies. It could add more detail about query matching behavior or point to android_launch_app, but neither is essential for correct selection and invocation.

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?

With 0% schema description coverage, the description gives the query parameter meaning by tying it to label/package filtering. The limit parameter is left to schema defaults and its self-descriptive name, so parameter semantics are only partially compensated.

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?

The description uses a specific verb ('List') and resource ('launchable applications and package names'), and it states the optional filter by label or package. This clearly distinguishes it from action-oriented siblings like android_launch_app.

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?

The description gives clear context: use this tool to discover launchable apps and package names, optionally filtering by query. It does not explicitly mention alternatives or exclusions, but the read-only discovery role is obvious enough for an agent to select it appropriately.

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