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

With no annotations provided, the description carries the full burden and does so: it discloses the default check set, the conditional exclusions and their reasons, the directory-scoping rule (only files in that tree, not the whole project), the return shape including optional keys, and error behavior ('Invalid configuration triggers a structured error response instead of crashing the server'). That is unusually complete behavioral disclosure.

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 key behavior (defaults, exclusions, scoping) is front-loaded before the Args/Returns block, and every sentence carries information. It is somewhat long, and the Returns section partly duplicates the existing output schema, so it is efficient rather than maximally tight.

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 two-parameter tool with an output schema and no annotations, the description covers selection of checks, defaults, conditional exclusions, scoping semantics, error modes, and a sibling cross-reference. Nothing an agent needs to invoke it correctly is missing.

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, and it does: it enumerates the valid check names (presence, enrichment, freshness, coverage, griffe) that the schema leaves as an unconstrained array of strings, and defines path as a Python file or directory. This adds substantial meaning beyond the bare schema.

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 opening states a specific verb and resource: 'Run docvet checks on Python files' and 'Analyzes Python source files for docstring quality issues.' It also distinguishes itself from the only sibling by routing the agent to docvet_rules() for per-rule fix guidance, so the agent can tell the two apart without opening either schema.

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?

It explains the default behavior ('all enabled checks except freshness') and the conditions that change it ('freshness requires git context; griffe also excluded when not installed'), plus a pointer to the sibling for a different task. It does not give an explicit 'do not use this when...' exclusion, which keeps it just short of a 5.

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

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

No annotations are provided, so the description carries the full behavioral burden. It makes clear this is a static catalog read by describing the returned payload in detail, but it never explicitly states that the call has no side effects, is safe to repeat, or requires no configuration; the return enumeration also largely duplicates the output schema rather than adding behavioral context.

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 opening sentence is well front-loaded and wastes nothing. However, the multi-line 'Returns:' block enumerates keys that the output schema already defines, so a meaningful chunk of the text does not earn its place.

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 zero-parameter catalog tool with an output schema present, the description covers purpose and payload adequately and need not explain return values further. The only real gap is the absence of guidance on how this relates to docvet_check.

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?

The tool takes zero parameters, so there is nothing to document and the baseline is 4. The description correctly implies the call is argument-free by framing it as a full catalog listing.

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?

States a specific verb ('List') and resource ('docvet rules') and immediately adds scope ('all available', 'with fix guidance'). An agent can tell this is the rule catalog, but the description never mentions the sibling docvet_check, so differentiation must be inferred from the names alone.

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 statement of when to use this tool versus docvet_check, no prerequisites, and no exclusions. A reader can guess it is a lookup helper, but nothing in the text routes the agent between the two tools.

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