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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is fully covered. The description earns credit for going beyond that by disclosing the computation's behavior: plate-friendly jumps and a rep scheme descending from 10 to singles, which is genuinely useful for a pure calculator with no output schema.

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, front-loaded with the core action and output, with no filler or repetition. Every clause contributes either scope or behavioral detail.

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?

With no output schema, the description does the right thing by summarizing the return (ramp steps plus the plates for each set). Combined with 100%-documented parameters and full annotations, an agent has enough to invoke it correctly; the only shortfall is the absence of any sibling routing.

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 100%, so all four parameters (workingWeight, bar, unit, sets) are already documented with ranges, defaults and units. The description only echoes 'working weight' and implies a unit choice, adding no syntax or semantics beyond the schema; 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?

States a specific verb and resource ('Build a warm-up ramp to a working weight') and enumerates the output shape (plate-friendly jumps, descending reps, plates per set). It is clear what the tool produces, though it never names or contrasts a sibling such as plate_loading or one_rep_max.

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?

Usage is implied by the phrasing — call it when you have a working weight and want warm-up sets — but there is no explicit when-to-use statement, no exclusions, and no routing to alternatives like plate_loading. The last sentence ('the same ramp the IronLedger app suggests') is branding, not guidance.

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