Website Redirect Migration Preflight Pack

Preflight a local website migration redirect map for missing coverage, duplicate mappings, chains, loops, host policy and supplied destination readiness.

This downloadable local package turns authorized buyer-supplied files into a fixed, reproducible review packet. It includes an installable Python CLI, a local stdio MCP adapter and a companion Agent Skill.

Outputs

result.json, redirect-matrix.csv, chain-details.csv, unmapped.csv, issues.jsonl, REDIRECT_PREFLIGHT.md and evidence-receipt.json

The core is deterministic, rejects unsafe paths and malformed inputs, never overwrites an existing packet, escapes formula-active CSV cells and binds each input and output with SHA-256. Processing stays local. No API key, login, upload, telemetry or live external action is included.

Best for

SEO consultants, web agencies and site owners preparing domain, CMS or URL migrations

Requirements

Windows 11 and Python 3.11–3.14; authorized local evidence files in the documented schemas; optional mcp==2.2.0 for the local MCP adapter.

Limitations

No crawl, DNS or HTTP request, redirect deployment, CMS change, SEO forecast, ranking guarantee or exhaustive technical SEO audit. Demand and sales are not guaranteed; this is a one-time local V1.