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

Goes well past the annotations: ownership transfer to the caller, billing attribution for metered work, the exact idempotency key (owner plus exact active name) with the workspace_reused return on retry, and the warning that workspace_tag must be persisted because the name is not a unique id. It also flags durability and that creation itself is unmetered, none of which the annotations convey.

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?

Front-loaded with the action and scope, then idempotency, then next steps — a sensible ordering with no filler sentences. It is dense with domain jargon ('shared reality', 'admitted documents') that costs some readability but each sentence carries information.

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?

Covers ownership, billing, idempotency, the returned reuse signal, and the required follow-up sequence; an output schema exists so return-shape detail is unnecessary. An agent has everything needed to call this correctly and know what to do next.

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 100%, so the baseline is 3, but the description adds real semantic weight: it explains that name is the idempotency key for the principal, that actor is audit display only and is neither owner nor accounting party, and that description is stored and echoed. That reinforces and extends the schema's own notes.

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 a specific verb and resource and immediately scopes what the workspace contains (documents, charts, review work, reports). It also distinguishes itself from adjacent creation tools by declaring that creation asserts no accounting entity and admits nothing, which separates it from create_standard_declaration_workspace and create_standard_book.

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?

Gives explicit downstream sequencing ('Next: gather source documents, create_standard_statements, then register, submit and post') and a retry rule. It does not explicitly name sibling alternatives such as list_workspaces or workspace_overview for read paths, so it stops short of a full when/when-not map.

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