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css-append-selector-verify

Safely append CSS styles from one file to another, with per-selector grep verification after every append to catch silent truncation that tail or wc-l alone would miss

examples/my-daily-monitor/skills/css-append-selector-verify/SKILL.md

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# Safe CSS Append Workflow (with Per-Selector Verification)

This skill provides a systematic approach for safely appending CSS styles from a source file to a destination file. The workflow ensures no content is overwritten, CSS variables are properly adapted, and **every appended selector is individually confirmed present** — so silent heredoc truncation of long lines is caught immediately rather than being masked by a passing line-count check.

## When to Use This Skill

- Migrating styles between projects
- Copying component styles while preserving existing rules
- Adding new CSS rules without duplicating or conflicting with existing styles
- Adapting styles to use a different set of CSS variables

## Workflow Steps

### 1. Read and Analyze Source CSS