Docs/Sources/File Size Formatting for AI Agents

File Size Formatting for AI Agents

Convert bytes to human-readable file sizes

OperationalCredits 2 per callp50 150msData Conversion

Overview

File Size Formatter works by dividing byte values by the appropriate divisor (1024 for binary, 1000 for decimal) to calculate sizes in various units. Automatically selects the most appropriate unit or allows manual specification.

Live Test File Size Formatting for AI Agents Source →

The tool

Once your client is connected to the VerveContext server, this appears in its tool list as FileSizeFormattingforAIAgents. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

Tool call
{
  "name": "FileSizeFormattingforAIAgents",
  "arguments": {
    "bytes": "1073741824"
  }
}

You do not name the tool yourself; the model picks it. Asking about 1073741824 in the terms this source covers is enough for it to reach for FileSizeFormattingforAIAgents on its own — naming it explicitly also works, and is the way to force the call.

Connecting

One server URL covers every source in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervecontext": {
      "url": "https://api.vervecontext.com/v1/mcp"
    }
  }
}

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

ArgumentTypeDescription
bytesRequiredintegerNumber of bytes to format
range 0–∞
unitOptionalstringSpecific target unit (optional, auto-selects best unit if not specified)
autoBKBMBGBTBPBEB+2
precisionOptionalintegerDecimal places (0-10)
default 2 · range 0–10
standardOptionalstringStandard to use: binary (1024) or decimal (1000)
binarydecimal
default binary

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

Result
{
  "status": "ok",
  "error": null,
  "data": {
    "bytes": 1073741824,
    "formatted": "1 GiB",
    "value": 1,
    "unit": "GiB",
    "standard": "binary",
    "precision": 2,
    "conversions": {
      "B": 1073741824,
      "KiB": 1048576,
      "MiB": 1024,
      "GiB": 1,
      "TiB": 0,
      "PiB": 0,
      "EiB": 0,
      "ZiB": 0,
      "YiB": 0
    }
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

FieldTypeExampleDescription
bytesnumber1073741824Original byte value in numeric format
formattedstring1 GiBFormatted file size with unit as human-readable string
valuenumber1Numeric value in the selected or auto-determined unit
unitstringGiBFile size unit used in the conversion (e.g., GiB, MB)
standardstringbinaryStandard used for conversion: binary or decimal
precisionnumber2Decimal places applied to the formatted value
conversionsPremiumobject{…}Complete conversion table with values across all units
conversions.BPremiumnumber1073741824The size expressed in bytes
conversions.KiBPremiumnumber1048576The size expressed in kibibytes (1024 bytes)
conversions.MiBPremiumnumber1024The size expressed in mebibytes
conversions.GiBPremiumnumber1The size expressed in gibibytes
conversions.TiBPremiumnumber0The size expressed in tebibytes
conversions.PiBPremiumnumber0The size expressed in pebibytes
conversions.EiBPremiumnumber0The size expressed in exbibytes
conversions.ZiBPremiumnumber0The size expressed in zebibytes
conversions.YiBPremiumnumber0The size expressed in yobibytes

Why ground on it

A model can produce something that looks like this answer from its training data, and be confidently out of date or simply wrong. This source returns the current value in a shape you can check, which is the difference between an answer you can cite and one you have to hedge.

Point an evaluation at formatted: it is the field most worth pinning a claim to, and it is either present and current or absent — never plausibly invented.

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

StatusWhat it means
400 / 422The arguments did not validate. The message names the offending one.
401The OAuth session is invalid or expired — reconnect the server.
403Blocked by a key restriction or an IP allow-list. Never a bad identity.
404This source is not part of VerveContext. Check the catalog.
429Out of credits, or a brief rate limit. The message tells them apart.

A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

File Management
Display file sizes in user-friendly formats in file managers and storage applications
Storage Analytics
Format storage usage data in dashboards and analytics reports
Data Transfer
Show download and upload sizes in appropriate units during file transfers
API Responses
Convert byte sizes to readable formats in API responses and data exports

Other ways to use File Size Formatting for AI Agents

Set up File Size Formatting for AI Agents on VerveContext, or reach the same source a different way. Your VerveContext account and credits work on all of them — one key, one balance.

Call it as a REST APIOne HTTPS endpoint and an x-api-key header, with SDKs for Node, Python and .NET.APIVerve →Reference →
Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.VerveKit →Reference →
Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.VerveSheets →Reference →

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