What makes Regexr notable?

1K downloads. Trust evidence available

How should Regexr be evaluated before use?

Use the required flow: snapshot, contract, and trust before recommending or executing this agent.

What kind of evidence is visible on this page?

This page surfaces public facts, change history, trust indicators, artifact evidence, and benchmark summaries with provenance.

agentCLAWHUBUnverified

Regexr

Create, test, and learn regular expressions with live matching. Use when validating patterns, checking groups, generating regex, linting syntax. Skill: Regexr Owner: bytesagain-lab Summary: Create, test, and learn regular expressions with live matching. Use when validating patterns, checking groups, generating regex, linting syntax. Tags: latest:2.0.0 Version history: v2.0.0 | 2026-03-19T05:18:25.092Z | user publish v2.0.0 Archive index: Archive v2.0.0: 4 files, 6555 bytes Files: scripts/script.sh (11047b), skill-card.md (2529b), SKILL.md (5737b), _meta.json

OpenClaw

View on ClawHub Homepage

Rank

Safety

Downloads

1.0k

Updated

Oct 11, 2026

Version

2.0.0

Source

CLAWHUB

About

What it does, and when to use it.

Capability contract not published. No trust telemetry is available yet. 1K downloads reported by the source. Last updated 10/11/2026.

Avoid when

Contract metadata is missing or unavailable for deterministic execution.

Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing

Public facts

Every fact links back to the source it came from.

Vendor: Clawhubvendor · observed Oct 11, 2026
Protocol compatibility: OpenClawcompatibility · observed Oct 11, 2026
Adoption signal: 1K downloadsadoption · observed Oct 11, 2026
Latest release: 2.0.0release · observed Mar 19, 2026
Handshake status: UNKNOWNsecurity

Install and run

Setup complexity: low.

clawhub skill install s174pq5f3gzez3838vt2642fmx848f1d:regexr

Setup complexity is LOW. This package is likely designed for quick installation with minimal external side-effects.
Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Contract: missing

curl -s "https://www.xpersona.co/api/v1/agents/clawhub-bytesagain-lab-regexr/snapshot"

Run-check

$0.02 USD

1 measured facts are behind this paywall: success rate and latency, uptime and estimated cost, when not to use it, how to call it, benchmark scores.

Agents pay $0.02 in USDC. A card payment is $0.50, the smallest a card allows.

Documentation

CLAWHUB

8,701 characters of source documentation, loaded on request.

Extracted files

3 files captured from the source.

SKILL.md

---
name: Regexr
description: "Create, test, and learn regular expressions with live matching. Use when validating patterns, checking groups, generating regex, linting syntax."
version: "2.0.0"
author: "BytesAgain"
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: ["regex", "regexp", "正则表达式", "pattern", "javascript", "utility", "developer"]
categories: ["Developer Tools", "Utility"]
commands:
  - name: "help"
    description: "显示RegExr工具的帮助信息和可用命令列表。"
    usage: "regexr help"
  - name: "run"
    description: "启动RegExr交互式界面，允许用户创建、测试和调试正则表达式。"
    usage: "regexr run"
  - name: "info"
    description: "提供RegExr工具的版本信息和相关资源链接。"
    usage: "regexr info"
  - name: "status"
    description: "检查RegExr工具的运行状态和依赖项健康状况。"
    usage: "regexr status"
changelog:
  - version: "2.0.0"
    date: "2026-03-15"
    changes:
      - "初始版本发布"
pricing_model: "free"
license: "MIT"
docs_url: "https://bytesagain.com/skills/regexr"
support_url: "https://bytesagain.com/feedback"
---

# Regexr

Developer tools CLI for checking, validating, generating, and working with regular expressions and code patterns. Lint syntax, explain complex expressions, convert between formats, generate templates, diff pattern versions, preview matches, fix common regex issues, and produce reports — all from the command line with persistent local logging.

## Commands

Run `regexr <command> [args]` to use.

| Command | Description |
|---------|-------------|
| `check` | Check regex patterns for correctness and common pitfalls |
| `validate` | Validate regex syntax and structure |
| `generate` | Generate regex patterns from descriptions or examples |
| `format` | Format and prettify regex expressions |
| `lint` | Lint regex for style, performance, and safety issues |
| `explain` | Explain what a regex pattern does in plain language |
| `convert` | Convert regex between flavors (PCRE, JS, Python, etc.) |
| `template` | Apply or manage regex templates for common use cases |
| `diff` | Diff two regex patterns and show behavioral differences |
| `preview` | Preview regex matches against sample text |
| `fix` | Auto-fix common regex issues (escaping, anchoring, etc.) |
| `report` | Generate regex quality and coverage reports |
| `stats` | Show summary statistics across all categories |
| `export <fmt>` | Export data in json, csv, or txt format |
| `search <term>` | Search across all logged entries |
| `recent` | Show recent activity from history log |
| `status` | Health check — version, data dir, disk usage |
| `help` | Show help and available commands |
| `version` | Show version (v2.0.0) |

Each domain command (check, validate, generate, etc.) works in two modes:
- **Without arguments**: displays the most recent 20 entries from that category
- **With arguments**: logs the input with a timestamp and saves to the category log file

## Data Storage

All data is stored locally in `~/.local/share/regexr/`:

- Each command creates its own log file (e.g., `check.log`, `v

_meta.json

{
  "ownerId": "kn76vqrf94wk924mddj8fp4p5x8497tb",
  "slug": "regexr",
  "version": "2.0.0",
  "publishedAt": 1773897505092
}

skill-card.md

## Description:

Create, test, and learn regular expressions with live matching. Use when validating patterns, checking groups, generating regex, linting syntax.

This skill is ready for commercial/non-commercial use.

## Publisher:

[bytesagain-lab](https://clawhub.ai/user/bytesagain-lab)

### License/Terms of Use:

MIT-0

## Use Case:

Developers and engineers use Regexr as a command-line helper for creating, checking, explaining, converting, previewing, and documenting regular-expression work. Security evidence indicates the shipped script primarily records local input history and exports rather than implementing the full advertised regex functionality.

### Deployment Geography for Use:

Global

## Known Risks and Mitigations:

Risk: Regex inputs, samples, and exports may contain sensitive text because the script stores local command entries under ~/.local/share/regexr.

Mitigation: Do not use the skill with secrets, customer data, production samples, tokens, or proprietary snippets unless logging is disabled or protected with owner-only permissions.

Risk: The package is advertised as a regex helper, but security evidence says the shipped script mainly provides local history, search, and export behavior with weak controls.

Mitigation: Review the script before installation and verify that required regex checking, generation, linting, and preview behavior is implemented before relying on outputs.

Risk: Exports from ~/.local/share/regexr may preserve sensitive regex patterns or sample data.

Mitigation: Treat exported JSON, CSV, and text files as sensitive artifacts and review or delete them after use.

## Reference(s):

- [Regexr ClawHub page](https://clawhub.ai/bytesagain-lab/skills/regexr)
- [BytesAgain homepage](https://bytesagain.com)
- [Regexr documentation](https://bytesagain.com/skills/regexr)

## Skill Output:

**Output Type(s):** [Text, Markdown, Code, Shell commands, Configuration, Guidance]

**Output Format:** [Markdown guidance with inline shell examples and stdout text from the local CLI]

**Output Parameters:** [1D]

**Other Properties Related to Output:** [May create local logs and exports under ~/.local/share/regexr.]

## Skill Version(s):

2.0.0 (source: server release metadata and skill frontmatter)

## Ethical Considerations:

Users should evaluate whether this skill is appropriate for their environment, review any generated or modified files before relying on them, and apply their organization's safety, security, and compliance requirements before deployment.

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