save_show_digest

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

No annotations are provided, so the description must disclose side effects. It says 'Create or update' but does not explain whether updating overwrites an existing digest playlist, preserves manual edits, or has any side effects beyond the playlist mutation. For a mutating tool with no annotation coverage, this is a significant transparency gap.

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 description is one efficient, front-loaded sentence. It communicates the action, the source data, and the helper role without extraneous words or repetition of schema details.

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 tool with only optional parameters and full schema documentation, the description gives enough context about the source ('show_new_episodes radar') and intent ('auto-save helper'). The main gap is behavioral: it does not describe what the tool returns or the precise update semantics, but the schema covers the input surface.

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 100%, so the parameters (dry_run, playlist_name, response_format) are already well documented. The description adds no additional parameter-level meaning, which is acceptable at baseline given the schema's completeness.

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 specifies a clear action ('Create or update') and resource ('digest playlist') sourced from the 'latest show_new_episodes radar'. It also identifies itself as an 'auto-save helper', which distinguishes it from broader playlist or discovery tools like 'show_new_episodes' or 'discovery_digest'.

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?

The description implies when to use the tool: after show_new_episodes produces a radar, this saves/updates the digest playlist from it. It does not give explicit exclusions or compare with alternatives, but the phrase 'auto-save helper' and the reference to the radar provide clear context.

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