apk_create_case

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does reveal the main side effects: hashing the APK, preserving it, and writing a case workspace, which at least implies a non-destructive operation. However, it doesn't disclose what 'preserve' concretely does (copy, move, archive), whether an existing case_dir is overwritten or appended to, whether directories are created, or what failure modes exist.

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

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

The description is a single sentence of about a dozen words with no filler, and the action sequence is front-loaded ('Hash and preserve... then write...'). It earns its place efficiently, though its brevity is partly responsible for the gaps in usage and parameter guidance.

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

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

For a tool that creates a case workspace with side effects, the description is a skeleton. It doesn't explain the purpose of extras, the relationship between apk_path and case_dir, what the resulting workspace contains, or behavior when the case already exists. The presence of an output schema reduces the need to describe return values, but the input-side ambiguities remain unresolved.

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

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

Schema description coverage is 0%, so the description must compensate, but it only does so partially. It tells the agent that apk_path refers to an APK/XAPK file and hints that 'case workspace' maps to case_dir, but it says nothing about the extras parameter at all. With three parameters and zero schema descriptions, leaving one parameter completely unexplained is a meaningful gap.

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

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

The description states specific actions ('Hash and preserve') on a specific resource ('an APK/XAPK') followed by a concrete outcome ('write a case workspace'). This clearly names the tool's function and distinguishes it from siblings like apk_fingerprint, which would only fingerprint, by adding the case-workspace creation step. However, it doesn't explicitly contrast against siblings, and 'preserve' is slightly ambiguous about what preservation entails.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives. Given sibling tools like apk_fingerprint (which likely overlaps on hashing) and apk_dispatch/apk_orchestrate (which may handle case workflows), an agent gets no signal about which tool fits which scenario. The 'preserve' wording implies evidence-collection use, but that is never made explicit, and no exclusions or prerequisites are stated.

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