regex_explain

SERVERScorpTech x402 API SOURCEhttps://scorptech.it.com/api/x402/mcp

Low RISK CLASS

Category Read

Parameters 41 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-it-scorptech-x402/regex-explain.md

WHAT IT DOES

What regex_explain does on ScorpTech x402 API

AI agents call regex_explain 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
`flags`	string	—	i, m, s, x, u (g and y are accepted and ignored)
`tests`	array	—	Sample strings to run the pattern on
`flavor`	string	—
`pattern`	string	Yes	The regex (a JavaScript literal like /abc/gi is also accepted)

Parameters from the server's own tool schema.

RISK

Why regex_explain is rated Low

Even though regex_explain 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.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs regex_explain 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 regex_explain, this is the rule to start with:

regex_explain Allowed

regex_explain is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "regex_explain": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every regex_explain call is checked against it from then on.

FAQ

Questions about regex_explain

What does the regex_explain tool do? +

Explain, lint and test a regular expression before an agent ships it. Parses the pattern (PCRE, JavaScript, Python, Go/RE2, Java or .NET syntax) into a token-by-token plain-English explanation with capture groups; flags ReDoS risks (nested quantifiers, overlapping alternation in repeats, adjacent overlapping quantifiers) and confirms them with a crafted input against a backtracking limit; warns about common bugs (unescaped dots in domains, [A-z], empty alternatives, unanchored validators); reports which features each regex flavour does not support (lookbehind, possessive / atomic, \A \z, named-group syntax, Unicode classes, backreferences in RE2); and runs the pattern on sample strings returning every match with its groups and offsets. Price: $0.002 USDC per successful call (x402, Solana). Same tool over HTTPS: POST https://scorptech.it.com/api/x402/v1/regex-explain. It is categorised as a Read tool in the ScorpTech x402 API MCP Server, which means it retrieves data without modifying state.

What parameters does regex_explain accept? +

regex_explain accepts 4 parameters: flags, tests, flavor, pattern. Required: pattern. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on regex_explain? +

Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for regex_explain: 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.

What risk level is regex_explain? +

regex_explain is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit regex_explain? +

Yes. Add a rate_limit block to the regex_explain 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.

How do I block regex_explain completely? +

Set action: deny in the PolicyLayer policy for regex_explain. 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.

What MCP server provides regex_explain? +

regex_explain 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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