playlist_shuffle

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

With no annotations, the description carries the full burden. It adds useful context: Fisher-Yates implies a fair/unbiased permutation, 'seeded optional' implies reproducibility, and 'GET all + PUT/POST' implies the tool reads the full playlist and writes it back. However, it never explicitly states that the shuffle destroys the existing order in place, requires playlist-edit permissions, or is irreversible, which a mutation tool should disclose.

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?

Two tightly packed sentences with no filler. The core action is front-loaded, and the quota/behavior hint is appended efficiently. Every word earns 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 mutation tool with zero annotations, no output schema, and only 33% schema coverage, the description is too sparse. Missing: whether the shuffle replaces the playlist in place, whether it can be undone, permission requirements, what the return value is, and how it relates to the nearly identical sibling playlist_seed_shuffle. An agent cannot safely invoke this without making assumptions.

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 low at 33% (only dry_run is described). The description partially compensates by clarifying that seeding is optional for the seed parameter, but it adds nothing about the required playlist_id format (URI vs ID) and does not explain what the seed value controls beyond its existence. This is partial compensation for a significant documentation 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 a specific verb (shuffle), resource (playlist), and algorithm (Fisher-Yates), making the core action unambiguous. However, it does not differentiate from the sibling 'playlist_seed_shuffle,' which appears to overlap with the 'seeded optional' capability, leaving the agent to guess which tool to prefer.

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 or when-not-to-use guidance is provided. The quota note is operational context, not selection guidance, and with ~300 siblings including playlist_seed_shuffle, playlist_reverse, and playlist_rotate, the description offers no help in choosing this tool over alternatives.

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