How to use
- Copy the installation command and review the source package before installing it in your own agent environment.
- Check the source document for required tools, credentials and supported hosts.
- Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/sergekostenchuk/ui-ux-agent-skill-system --skill existing-site-analyzerBefore you start
- Installation does not include a model subscription, API allowance or permission to access your files.
- Repository stars and installation counts describe activity, not an independent quality or security test.
Original skill document
Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.
Existing Site Analyzer
This skill creates the evidence base for existing-site work. It does not decide rebuild strategy by itself and does not mutate the live site.
Operating Modes
local-inventory: inspect local HTML, source files, assets, sitemap, robots, and reports.public-url-review: review public URLs or fetched HTML only after network/crawling approval.screenshot-review: analyze screenshots when URL or source is unavailable.asset-inventory: inventory images, videos, docs, icons, maps, and brand assets.handoff: produce evidence forrebuild-or-improve-advisorandmigration-planner.
Required Workflow
- Read references/existing-site-analysis-contract.md.
- Confirm source type and privacy:
- local files and user-provided public screenshots: allowed;
- public URL crawling/fetching: approval required if not already requested;
- authenticated/private pages, analytics, CRM, or CMS: explicit approval and data-handling note required.
- Use assets/existing-site-audit.template.md for the report.
- Record evidence status for every source:
Ran,Skipped,Planned, orManual. - Capture:
- page inventory;
- content and IA;
- SEO/LLM surface;
- UX and conversion issues;
- technical constraints;
- asset inventory;
- migration risks.
- Hand off to
rebuild-or-improve-advisor; involvemigration-plannerif URL structure, redirects, sitemap, robots, schema, or launch risk may change.
Safety Rules
- Do not crawl private/authenticated pages without explicit approval.
- Do not store private analytics exports, cookies, tokens, private URLs, or
.envvalues in reports. - Do not claim Lighthouse, browser, crawler, or DOM evidence unless it was actually run.
- Do not change production content, redirects, robots, sitemap, DNS, CMS, or deployment settings.
Handoff Shape
text
Mode:
Sources:
Evidence status:
Major findings:
SEO/LLM risks:
UX risks:
Technical constraints:
Asset inventory:
Migration risk:
Next owner:Validation
When editing this skill, run:
bash
python3 $CODEX_HOME/skills/.system/skill-creator/scripts/quick_validate.py $CODEX_HOME/skills/existing-site-analyzer
python3 $CODEX_HOME/skills/senior-skill-architect/scripts/lint_production_skill.py $CODEX_HOME/skills/existing-site-analyzer
python3 -m json.tool $CODEX_HOME/skills/existing-site-analyzer/evals/evals.json >/dev/null
