get_component_catalog

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

readOnlyHint=true already declares the safe read profile, so the description's 'Read-only' line earns no credit and is redundant. The useful additions are the scope statement ('No full name inventory') and the list of health/coverage facets, which tell the agent this is a summary surface rather than a data dump. No pagination, cost, or freshness caveats are offered.

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?

One front-loaded sentence plus two short fragments; the verb leads and every clause names a distinct facet of the catalog. The trailing 'Read-only' fragment is slightly redundant against the annotation but costs little.

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?

With no output schema and no parameters, the description must convey what comes back, and the facet list (counts, coverage, filters, health, snapshot) does that adequately for a zero-arg inspection tool. It is complete enough to call correctly, though it could state whether results are static or live.

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 no parameter semantics to explain; baseline 4 applies. The description correctly does not invent any parameter detail.

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 names a specific verb (Inspect) and enumerates the catalog's contents (component counts, classification coverage, discovery filters, source/guidance health, snapshot), so the agent knows this is an aggregate/metadata view rather than an item lookup. The closing 'No full name inventory' distinguishes it from find_components without naming it, which is close to but not quite explicit sibling differentiation.

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?

Usage is only implied: the tool is for inspecting catalog-level metadata, and 'No full name inventory' hints that find_components is the tool for enumerating names. No explicit when-to-use, prerequisites, or named alternative is given, leaving the agent to infer the routing.

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