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

Annotations already cover the safety profile (readOnlyHint=true, idempotentHint=true, destructiveHint=false, openWorldHint=false). The description usefully adds state context that research has not started and that this is a review/confirmation render, but says nothing about what is displayed, whether confirmation has side effects, or any prerequisites.

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 compact sentences, front-loaded with the verb and resource, with no filler. The state qualifier is placed at the end where it reads naturally, though one could argue it deserves earlier emphasis.

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?

An output schema exists, so return values need not be described, and annotations carry the safety semantics. Still, with three fully undocumented required params and no differentiation from the neighboring get_study_plan/render_study_results tools, the definition leaves the agent short of what it needs to invoke confidently.

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% across all three required parameters (studyId, draftPlanId, revision). The phrase 'at its current revision' loosely hints that revision selects the version, but studyId and draftPlanId receive no explanation and the constraint that revision must be the current one is left implicit. The description does not compensate for the coverage 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 gives a specific verb+resource ('Shows a saved Study draft at its current revision') and adds the purpose of interactive review/confirmation. It distinguishes itself from render_study_results by the 'research has not started' framing, though it never explicitly contrasts with the sibling get_study_plan. Minor terminological drift: the tool is named 'plan' but the text says 'draft'.

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?

'Research has not started' and 'for interactive review and confirmation' imply the pre-research review phase, so usage is partially inferable. However, no explicit when-to-use, exclusions, or alternative (e.g., get_study_plan vs render_study_plan vs list_study_drafts) is stated, leaving the agent to guess.

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