ln-33-code-modernizer
Modernizes a bounded capability by removing obsolete custom mechanisms or reducing bundle and maintenance cost. Use for proven modernization value; not routine upgrades or tuning.
Profile →npx skills add levnikolaevich/claude-code-skills --skill ln-33-code-modernizer --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Code Modernizer **Goal:** Modernize a bounded capability only when the new design measurably reduces human workflow friction, maintenance, risk, dependency duplication, or delivered artifact cost. Preserve behavior, isolate migrations, and revert changes that do not create net value. **Execution contract:** Treat the ordered checkbox workflow below as this skill's Definition of Done. Work through every item in order, and mark it complete only when its action and required evidence are complete. `N/A`, skipped, unavailable, or delegated items remain incomplete. Before returning, apply this skill's verdict, decision, and approval rules to every incomplete item and prepend **Checklist: X/Y complete**<br>**Incomplete: None | section/item — reason; outcome impact; exact next action**; list every incomplete item. ## Tool Routing | Need | Preferred tool | Use it when | Fallback | |---|---|---|---| | Current mechanism and consumers | Native file search plus language server or host-native code intelligence | Mapping contracts, callers, configuration, data, lifecycle, and tests | Narrow import, symbol, route, and configuration search with direct reads | | Existing platform capabilities | Ma
- Tool Routing
- Evidence Rules
- Checklist
- 1. Define the Modernization Target
- 2. Evaluate the Simplest Credible Design
- 3. Execute a Bounded Migration
- 4. Verify and Keep or Discard
- 5. Finalize and Report
- Output Contract
What does the ln-33-code-modernizer skill do?
Modernizes a bounded capability by removing obsolete custom mechanisms or reducing bundle and maintenance cost. Use for proven modernization value; not routine upgrades or tuning.
How do I install it?
Run `npx skills add levnikolaevich/claude-code-skills --skill ln-33-code-modernizer --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From levnikolaevich/claude-code-skills, a repository with 528 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.