structural-refactor SKILL.md skillA
structural-refactor from rolandbrecht/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add rolandbrecht/agent-skills/structural-refactor@git:20260309.39975cfPins git:20260309.39975cf in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- rolandbrecht/agent-skills
- Path
structural-refactor/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260309.39975cf, committed Mar 9, 2026
- First version recorded
- Mar 9, 2026
- Size
- 12,852 bytes
- Repository stars
- 4
- License
- MIT
Use this skill for any structural code search or replacement task — it is the right choice whenever grep/sed would feel clunky or risky. Trigger on ANY of these patterns: **Structural find-and-replace across a codebase:** "replace all fetch(url, options) calls with the new fetchWithRetry signature", "rename the first argument of every logger.log call from msg to message", "swap the argument order of this helper across all files" **Cross-language or multi-format refactoring:**…
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
# Structural Code Refactoring
This skill covers three complementary tools for structural code transformation. Use the
right one for the job — they're not competitors, they're specialists.
## Pick the Right Tool
| Situation | Best tool |
|-----------|-----------|
| Cross-language pattern replace (JS, Go, SQL, HTML…) | **comby** |
| Rearrange/capture subexpressions across many files | **comby** |
| Python 2 → 3 migration (print, unicode, exec, dict…) | **2to3** |
| Modernizing Python 3 idioms (f-strings, type hints…) | **pyupgrade** |
| True AST analysis (dead code, call graphs, imports) | **ast-code-graph skill** |
| Simple string search | **grep / ripgrep** |
---
## comby — Structural Search and Replace
`comby` understands code shape: balanced delimiters, string boundaries, comment regions.
Unlike `sed`, you write patterns that look like the code you're targeting.
```text
Match: request.get(':[url]')
Rewrite: request({ url: ':[url]', method: 'get' })
```
**Wins over grep/sed when:**
- The pattern spans multiple lines or contains nested brackets
- The same text appears in comments/strings and you want to skip it
- You need to capture and rearrange subexpressions
…Read the whole file at its exact version.
How to install
mdr add rolandbrecht/agent-skills/structural-refactor@sha256:90ba54ca90f3a705The line at the top of this page pins the label git:20260309.39975cf, 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_qwahdk6y4ktqif55)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Mar 9, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260309.39975cf latest | 2026-03-09 | 39975cf | 12,852 B | A | view · diff |
| git:20260309.3872ac0 | 2026-03-09 | 3872ac0 | 12,813 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 (12852 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
rolandbrecht/agent-skills · 4 stars · license MIT · pushed 2026-09-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qwahdk6y4ktqif55 GET https://markdownregistry.com/api/v1/resolve?ref=rolandbrecht/agent-skills/structural-refactor GET https://markdownregistry.com/api/v1/blob/90ba54ca90f3a7053766acc841c0a64ca51e3216e19ebe8fef38b4b4d524e340
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.