analyze_performance

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

No annotations are provided, so the description must carry the burden of behavioral disclosure. It states that it runs all analyzers and produces a report, which implies a read-only health assessment, but it does not explicitly confirm it makes no changes to the Redis instance, nor does it mention any performance overhead or required permissions. This leaves some ambiguity for an agent.

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 a single, well-structured sentence that front-loads the core purpose ('Comprehensive Redis health assessment') and then efficiently lists the included analyzers and the output ('unified report with prioritized recommendations'). No unnecessary words.

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 tool with one optional parameter and no output schema, the description provides the essential context: scope, included analyzers, and output type. However, it could be more complete by describing the structure of the unified report or noting whether running all analyzers has any significant resource cost, but the current level is adequate for basic selection.

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 single parameter slowlog_count is fully described in the schema with a default value and explanation. The description itself does not mention the parameter or how it affects the comprehensive analysis, but since schema coverage is 100%, the baseline of 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's purpose as a comprehensive Redis health assessment that runs all analyzers and produces a unified report with recommendations. It distinguishes itself from the individual sibling analyzer tools by explicitly naming them and indicating it combines their functionality.

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 this is the go-to tool for an overall health check rather than running individual analyzers separately. However, it does not explicitly state when NOT to use it (e.g., when you only need memory analysis) nor mention alternatives by name, though the sibling list provides that context.

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