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McpStamp Deposits

by io.github.theluckystrike
OverviewDiscussionsAdmin

What is held for a client

deposit_balance

Answer "how much of theirs am I holding?" for one client or everyone: received, applied to invoices, refunded and still held, one row per currency, never added across them. Reads only; deposit_list shows each deposit.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "deposit_balance"
  }
}

Input Schema

NameRequiredDescriptionDefault
as_ofNoYYYY-MM-DD, count only deposits received on or before this day
clientNoClient id, exact name or a name containing this text. Leave out for every client

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • addedInput schema / additionalProperties
      Added value: +false
  2. Changed1 schema field changed
    • removedInput schema / additionalProperties
      Removed value: -false
  3. First observed

TDQS

A3.6/5.0
Behavior1/5

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

The description explicitly says 'Reads only,' but the annotations declare readOnlyHint: false. This is an annotation contradiction: an agent cannot trust whether the tool mutates state or not. The aggregation behavior and per-currency warning are helpful, but the contradiction dominates this dimension.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences deliver the core question, the aggregation components, the currency constraint, and the key sibling distinction. There is no filler, and the most decision-relevant information is front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

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 a good job explaining the return shape: one row per currency, with received, applied, refunded, and still-held components. It also warns against summing across currencies. The only notable gap is the read-only contradiction, which affects trust rather than completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the schema already documents as_of and client. The description adds some interpretation, such as 'one client or everyone' for the client parameter and the no-cross-currency aggregation rule, but it does not add substantial parameter-level meaning beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly answers a specific client question: 'how much of theirs am I holding?' and describes the resource as aggregated client-held funds across received, applied, refunded, and still-held amounts. It also distinguishes itself from deposit_list by emphasizing balance aggregation rather than individual deposits.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives clear context: use this for one client or everyone and for aggregate balances, and explicitly names deposit_list as the alternative that shows each individual deposit. It does not fully enumerate all sibling alternatives, but the core read-vs-detail distinction is present.

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

All McpStamp Deposits toolsInspect
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