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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so the safety and determinism profile is fully covered externally. The description adds cultural-thematic context but says nothing beyond that – no ordering, pagination, result-count behavior, or what happens at the decade boundaries.

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 sentence, front-loaded with the purpose, then a compact decade catalogue. The parenthetical annotations are dense but each carries a distinct selection cue, so little is wasted.

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?

A two-parameter, read-only browse tool with no output schema and no nested objects needs little more than this. The only real gap is ordering/result behavior, which matters mildly for a listing tool with a 1–120 limit.

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 coverage is 50%: 'limit' is documented in the schema, while 'decade' is a bare enum there. The description compensates by giving each decade a thematic signature (e.g. 1990s 'Independence pop · Tata', 2010s 'Rabiz crosses over'), which materially helps an agent pick the right value.

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 the resource and scope precisely: 'Armenian songs from one decade', with the decade as the single required axis. That distinguishes it implicitly from browse_genre and browse_mood, though it never names those siblings or says how it differs from them explicitly.

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 by the parameter shape – an agent must infer that you call this when you want a decade slice rather than a genre or mood slice. There is no explicit when-to-use or when-not-to-use statement and no routing guidance among browse_genre, browse_mood, and search_catalog.

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