regex-playground SKILL.md skillA
regex-playground from chainlesschain/chainlesschain is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add chainlesschain/chainlesschain/regex-playground@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- chainlesschain/chainlesschain
- Path
desktop-app-vue/src/main/ai-engine/cowork/skills/builtin/regex-playground/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0.0, committed Aug 28, 2026
- First version recorded
- Jun 3, 2026
- Size
- 2,415 bytes
- Repository stars
- 11
- License
- a license file GitHub does not identify
正则表达式工具（测试、匹配、替换、解释、常用模式库、从自然语言生成）.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Regex Playground 正则表达式测试工具。 ## 功能 | 操作 | 命令 | 说明 | | -------- | -------------------------------------------------------------- | --------------------- | | 测试 | `--test "<pattern>" --text "<text>"` | 测试正则匹配 | | 测试文件 | `--test "<pattern>" --file <path>` | 在文件中搜索匹配 | | 替换 | `--replace "<pattern>" --with "<replacement>" --text "<text>"` | 正则替换 | | 解释 | `--explain "<pattern>"` | 解释正则表达式 | | 常用模式 | `--library [name]` | 列出/搜索常用正则模式 | | 提取 | `--extract "<pattern>" --file <path>` | 从文件提取所有匹配 |
Read the whole file at its exact version.
How to install
mdr add chainlesschain/chainlesschain/regex-playground@sha256:20d5e32832a15babThe line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ltek3tksaozojuwp)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jun 3, 2026 and Aug 28, 2026, about one every 43 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-08-28 | 44248c7 | 2,415 B | A | view · diff |
| v1.0.0 | 2026-08-28 | c29953e | 2,398 B | A | view · diff |
| v1.0.0 | 2026-06-03 | c3fe912 | 2,306 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2415 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
chainlesschain/chainlesschain · 11 stars · license a license file GitHub does not identify · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ltek3tksaozojuwp GET https://markdownregistry.com/api/v1/resolve?ref=chainlesschain/chainlesschain/regex-playground GET https://markdownregistry.com/api/v1/blob/20d5e32832a15babfb073aa805d71fcb9286770ede61e10747bf6af536b29b99
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.