test_fix

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

No annotations are provided, so the description carries full behavioral disclosure burden. It discloses that operation is non-deterministic/parallel ('using parallel agents') which is useful, but fails to disclose what happens on failure—whether partial fixes are committed, whether the repo is left in a modified state, cleanup behavior, or reversibility. 'Fix them' implies mutation of workspace files with no caution about state changes.

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?

A single concise sentence with no filler words. It front-loads the verb ('Run tests') and states the action clearly. It's efficiently written; the only issue is that brevity is achieved by omitting useful context rather than by trimming redundancy.

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?

This is a complex mutation tool (runs tests, modifies code) with no annotations and no output schema. With many closely-related siblings (test_fix_incremental, test_fix_web, test_fix_incremental_web), the description needs to clarify scope, platform, and relationship to siblings. It does none of this. The single sentence is adequate for a trivial tool but insufficient for a tool of this complexity and sibling density.

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?

There is only 1 parameter (spec) with 100% schema description coverage, and the description doesn't mention the parameter at all. However, the schema itself fully documents the spec levels and their meanings (low=4 cores, default=6-8, high=12+), so the description adds nothing but also doesn't need to—the schema carries the full weight. Baseline 3 is appropriate.

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 the verb+object (run tests, fix failures) but is somewhat vague on mechanism. 'Using parallel agents' gives a hint of execution model. However, among ~10 sibling tools including test_fix_incremental, test_fix_web, test_fix_incremental_web, there is zero differentiation—no mention of scope, platform, or whether this is the base/general variant vs the incremental/web versions. The purpose is understandable but not distinguishing.

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?

No when-to-use guidance is provided. With siblings like test_fix_incremental (presumably incremental fixing), test_fix_web, and test_fix_mobile, an agent gets no indication of which tool to select. The description offers no context about when this base test_fix is preferred over its specialized siblings, no exclusions, and no alternatives mentioned.

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