create_film

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

Annotations already signal readOnlyHint=false, idempotentHint=true, and destructiveHint=false, and the description adds meaningful behavior beyond that: the tool fetches and stores specific TMDB fields 'exactly as quick-review.php does, so the film renders identically.' It does not contradict annotations.

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 front-loaded with the core action, then explains the TMDB enrichment behavior in one important sentence, then provides a tight argument list. Every sentence adds value and no filler is present.

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?

Despite having 8 parameters and an output schema, the description supplies everything an agent needs: complete parameter semantics, an external lookup workflow, and the storage behavior that affects rendering. There is no critical missing context for correct invocation.

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%, but the description documents all 8 parameters with meaningful semantics: rating is 'out of 10', plot must be 'in Finnish, as the theme expects', status is 'draft or publish', and tmdb_id is sourced from lookup_tmdb. This fully compensates for the schema's lack of descriptions.

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 opens with 'Create a film entry, optionally enriched from TMDB,' which names a specific action and resource and immediately distinguishes the tool from search/list/trash siblings. It also clarifies the optional enrichment behavior without ambiguity.

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 gives clear context by directing the agent to use lookup_tmdb to find the id and marks tmdb_id as 'strongly preferred.' However, it does not explicitly explain when to use create_film over related siblings like write_review or set_rating, so exclusion guidance is missing.

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