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

Annotations already indicate this is a write operation (readOnlyHint=false, destructiveHint=false, idempotentHint=false). The description adds the key behavioral fact that it creates a persisted ResearchRun bound to the MCP session, and that it is a prerequisite for other write tools. However, it doesn't disclose what 'bind' means for session lifecycle, whether repeated calls create multiple runs, or what the response contains. With annotations covering the basic safety profile, a 3 is appropriate.

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 sentences with no filler. The core action and the critical prerequisite are front-loaded. Every word earns its place.

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 9-parameter creation tool with no output schema and no parameter documentation, the description is too thin. It explains the tool's role in the workflow but leaves the agent guessing about parameter semantics, return value, and side effects. The prerequisite context is valuable, but the overall completeness is inadequate 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%, and the description mentions none of the 9 parameters. The schema itself provides names and types but no semantic meaning (e.g., what 'metric' is for, what 'objectivePrompt' should contain, how dateRangeStart/End are formatted). With 9 parameters and zero coverage, the description must compensate but does not. This is a significant 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 states a specific verb ('Create and bind') and resource ('persisted Algo Agent ResearchRun for this MCP session'), and it distinguishes itself by noting it is 'Required before write-capable research journal tools.' This clearly differentiates it from siblings like ata_start_research_job or ata_start_research_workflow, though it doesn't explicitly name those alternatives.

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 gives clear context: this tool must be used before write-capable research journal tools. It implies a sequencing prerequisite but does not explicitly state when NOT to use it or name alternative tools like ata_start_research_job or ata_start_research_workflow. The 'Required before' phrasing provides strong usage guidance, but exclusions are absent.

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