get_balance_sheet

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

Annotations already declare readOnlyHint=true, so the safety profile is covered. The description properly states it returns a balance sheet, which aligns with the read-only annotation. However, it doesn't describe what the response looks like (no output schema provided), whether it includes period comparisons, or if it respects the company set via set_company. For a report tool, these are useful behavioral details.

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 sentence with 11 words, no filler, and front-loads the key action and resource. Every word earns its place. Given the tool is simple (1 parameter, read-only), this is optimal conciseness.

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 simple 1-parameter read-only tool with 100% schema coverage, the description is adequate. However, without an output schema, it could benefit from mentioning what the balance sheet contains (e.g., assets, liabilities, equity) and whether it uses the currently set company/period from set_company/set_period. The current level is minimally complete but not informative beyond the tool's basic signature.

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% with one parameter (asOf) already described in the schema as 'As-of date in DD-MM-YYYY format'. The description adds no further semantics about the date meaning (e.g., whether it's the end date or an effective date). Since coverage is high, a baseline of 3 is appropriate – the schema carries the load, but the description misses an opportunity to clarify the date semantics.

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 uses a specific verb ('Get') and resource ('Balance Sheet') and adds a contextual qualifier ('from TallyPrime as of a given date'). It distinguishes itself from siblings like get_profit_and_loss and get_trial_balance by targeting a specific report type, but it doesn't explicitly differentiate from close siblings like get_bills_receivable. A 4 is given because the purpose is very clear but sibling differentiation is implicit rather than explicit.

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 provides no guidance on when to use this tool versus alternatives (e.g., get_trial_balance or get_profit_and_loss). It does not mention prerequisites, typical scenarios, or related tools. With 27 siblings covering many Tally operations, this omission makes it harder for an agent to choose correctly.

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