Directory / Awesome Copilot skills (GitHub) / doc-and-modernize

doc-and-modernize

Two related workflows for a locally-cloned codebase, in one skill. Documentation mode produces a single, comprehensive, verifiable architecture document primarily by reading files on disk (local-first) — use it whenever the user wants to understand, map, document, research, or onboard onto a codebase ("research this repo", "write up the architecture", "do an architecture deep dive", "document how this codebase works", "map the system design", "create an onboarding doc"). Modernization mode generates a phased plan to modernize, migrate, upgrade, or rewrite a legacy system ("modernize this", "plan the migration", "how would we rewrite this", "how do we get off this legacy stack"); if no architecture document exists yet it first runs Documentation mode, then continues straight through to the plan. It assumes the legacy stack may be dead, runs a time-boxed feasibility spike, and picks the highest achievable rung on a safety ladder instead of demanding a fully-green legacy CI gate up front.
Description from the SKILL.md front matter.

Install

GitHub CLI v2.90+ (Copilot by default)

gh skill install github/awesome-copilot doc-and-modernize

For Claude Code

gh skill install github/awesome-copilot doc-and-modernize --agent claude-code

For Codex

gh skill install github/awesome-copilot doc-and-modernize --agent codex

Commands follow each host's documentation (GitHub Copilot, plus Claude Code, Codex, Cursor via gh skill docs). gh skill needs GitHub CLI 2.90 or later and is in public preview.

Listed from GitHub + community contributors's catalog, not reviewed by us. Read the source before installing.

Catalog: Awesome Copilot skills (GitHub)
Author: Not stated in the source
Source code: github/awesome-copilot
License: MIT (repository license)
Repository stars: 40,178 for github/awesome-copilot (the whole catalog repo)
Added to catalog: Not tracked for this source
Last change: 2026-10-16 (last push to the repo)

What it contains

Skills: 1

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