text_width
Width of one line in Helvetica or Helvetica-Bold, in points. Glyph widths are the Adobe standard-14 AFM numbers in WinAnsi (the same numbers ReportLab ships). The width is the sum times the font size, rounded half away from zero to 0.001 pt. Characters outside that encoding, and control character...
This record as markdown: /tools/com-it-scorptech-x402/text-width.md
What text_width does on ScorpTech x402 API
AI agents call text_width to retrieve information from ScorpTech x402 API without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
font | string | — | |
size | string | — | Font size in points |
text | string | Yes |
Parameters from the server's own tool schema.
Why text_width is rated Low
Even though text_width only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs text_width safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ScorpTech x402 API, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For text_width, this is the rule to start with:
text_width is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every text_width call is checked against it from then on.
Questions about text_width
Width of one line in Helvetica or Helvetica-Bold, in points. Glyph widths are the Adobe standard-14 AFM numbers in WinAnsi (the same numbers ReportLab ships). The width is the sum times the font size, rounded half away from zero to 0.001 pt. Characters outside that encoding, and control characters, are rejected. A newline belongs in text-wrap. Price: $0.001 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/text-width. It is categorised as a Read tool in the ScorpTech x402 API MCP Server, which means it retrieves data without modifying state.
text_width accepts 3 parameters: font, size, text. Required: text. The full parameter table on this page comes from the server's own tool schema.
Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for text_width: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ScorpTech x402 API. Nothing to install.
text_width is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the text_width rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for text_width. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
text_width is provided by the ScorpTech x402 API MCP server (https://scorptech.it.com/api/x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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