Regex Explainer
Explain a regex in plain English and detect catastrophic backtracking risk.
Connector by gumballtools.com · Domain verified by the MCP Registry
Install
Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install connector/gumballtools-com-regex-explainer
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
Remote endpoint
https://regex-explainer.gumballtools.com/api/mcpRemote (HTTP)
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.
- Tools
- 1 read · 0 write · 0 deleteRead-only
- Secrets
- None asked for
- Install scripts
- Nothing to install (hosted)
- Runs as
- Hosted (remote endpoint)
Tools by what they do 1
From the running server's own tool list (tools/list) on Oct 25, 2026.
Read 1 · Look things up without changing anything.
explain_regex
Network hosts it talks to 1
regex-explainer.gumballtools.com· found in remote endpoint, install command
Tools (1)
As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].
explain_regexExplain a regular expressionread-onlyExplain a regular expression in plain English and detect the failure modes that make patterns dangerous rather than merely wrong. Use this whenever a regex needs to be read, reviewed, or verified — and ALWAYS before putting a pattern somewhere it will run against untrusted input. The critical check is catastrophic backtracking: a pattern like (a+)+$ is three characters longer than a safe equivalent, looks harmless, and takes minutes of CPU on a 30-character input that almost matches. That makes it a denial-of-service vector. Whether a pattern is vulnerable depends on whether nested quantifier…
Signals
- Last release
- Sep 5, 2026 (1 month ago)
- Repository
- Not found on GitHub (deleted or private)
Details
- Registry name
com.gumballtools/regex-explainer- Version
- 0.1.0
- Auth
- Auth not stated
- License
- License unknown
- Repository
- github.com/bwalvoord/gumball
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- Official MCP Registry
More from gumballtools.com
- 0.537score
Sports Rules
gumballtools.com
Work an offside call through IFAB Law 11 or NHL Rule 83, step by step.
ConnectorBFreshness: BRemoteRead-onlyClaude Code +3 - 0.537score
Project Gumball
gumballtools.com
One MCP server exposing every tool in the Gumball portfolio.
ConnectorBFreshness: BRemoteRead-onlyClaude Code +3 - 0.537score
Amortization Schedule
gumballtools.com
Row-by-row loan amortization schedules: monthly or daily accrual, extra principal, PMI, biweekly.
ConnectorBFreshness: BRemoteRead-onlyClaude Code +3 - 0.537score
Body Metrics
gumballtools.com
Convert height and weight, compute BMI, TDEE and protein targets with error bounds.
ConnectorBFreshness: BRemoteRead-onlyClaude Code +3 - 0.537score
Check Digit Validator
gumballtools.com
Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit
ConnectorBFreshness: BRemoteRead-onlyClaude Code +3 - 0.537score
Due Date
gumballtools.com
Estimate a due date from LMP, conception, or ultrasound, with ACOG redating rules.
ConnectorBFreshness: BRemoteRead-onlyClaude Code +3
Cite this page
Regex Explainer MCP server. Agent Mart. https://agentmart.dev/connectors/gumballtools-com-regex-explainer (last updated 2026-10-24)