mistral_create_session

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

The description discloses that files are copied (non-destructive) and that the session is for staging, adding context beyond the annotations. However, it does not mention prerequisites like an active workdir, behavior when a session already exists, or file validation, leaving some transparency gaps.

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 two sentences long, front-loads the main action, and contains no redundant words. It is concise and well-structured.

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 single-parameter tool with an output schema, the description and schema together cover the essential operation. It could mention the dependency on the current workdir's inbox, but the sibling toolset provides that context, making it adequately complete.

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 schema has 100% coverage for the 'filenames' parameter, including the null default meaning all files. The description only restates this behavior ('specified files or all inbox files') without adding new syntax or format details, so the baseline 3 applies.

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 clearly states the tool creates a staging session from inbox audio files, using a specific verb ('create') and resource ('staging session'). It distinguishes itself from sibling tools by focusing on session creation rather than listing, transcribing, or finalizing.

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 usage for preparing files before transcription via the phrase 'for transcription', giving clear context. However, it does not explicitly name alternatives or state when not to use it, but the context is sufficient for an agent to infer the tool is a prerequisite step before transcribing.

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