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

With no annotations, the description carries the full behavioral burden, and it omits key traits: read-only safety is only implied, and there is no mention of pagination even though the schema caps results at a default of 50. The phrase 'Returns the full spend history' is actively misleading against that 50-receipt default, and there is no output schema to compensate.

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 short sentences, front-loaded with the action and scope; nothing is padded. The second sentence ('Returns the full spend history') is largely redundant with the first and is where the inaccuracy creeps in.

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 two-parameter read tool this is close to sufficient, since the schema documents both inputs. But with no annotations and no output schema, the description should have clarified pagination/truncation behavior rather than asserting a 'full' history.

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%, with both sessionId and limit documented including the default of 50, so the baseline is 3. The description adds no meaning beyond the schema and in fact conflicts with the limit semantics by promising the 'full' history.

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 ('List all receipts (spend records) for a session') and even glosses the domain term 'receipts' as spend records. It does not explicitly differentiate itself from adjacent ledger/finance siblings such as pabandi_get_ledger or pabandi_list_finance, which an agent would likely hesitate between.

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 only implied: the tool is scoped 'for a session', so an agent can infer it is the per-session spend view. There is no statement of when to prefer it over pabandi_get_ledger or pabandi_list_finance, and no prerequisites or exclusions are given.

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