Agent skill

Framework Migration Legacy Modernize

by aiskillstore in aiskillstore/marketplace

Orchestrate a comprehensive legacy system modernization using the strangler fig pattern, enabling gradual replacement of outdated components while maintaining continuous business operations through ex

No licenceAuto-check passedDevelopment

Install Framework Migration Legacy Modernize

skills CLI
$ npx skills add aiskillstore/marketplace --skill framework-migration-legacy-modernize -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install aiskillstore/marketplace framework-migration-legacy-modernize --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/framework-migration-legacy-modernize .claude/skills/framework-migration-legacy-modernize && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
framework-migration-legacy-modernize
GitHub stars
430
Used in
7 other repos
Token cost
~2.8k tokens
SKILL.md length
1,282 words
Files
2
Skills in repo
1,044
Repo updated
First seen
Licence
None found

At a glance

Orchestrate a comprehensive legacy system modernization using the strangler fig pattern, enabling gradual replacement of outdated components while maintaining continuous business operations through ex

  • Works in 5 steps: Legacy Assessment and Risk Analysis → Test Coverage Establishment → Incremental Migration Implementation → …
  • Tasks that involve Legacy modernization
  • SKILL.md covers Use this skill when, Do not use this skill when, Instructions and Phase 1: Legacy Assessment and…, plus 7 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Framework Migration Legacy Modernize is an agent skill from aiskillstore/marketplace. Orchestrate a comprehensive legacy system modernization using the strangler fig pattern, enabling gradual replacement of outdated components while maintaining continuous business operations through ex

Its SKILL.md is about 2.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).

It sits in Development, covering Legacy modernization. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • Tasks that involve Legacy modernization

Example prompts

  • “/framework-migration-legacy-modernize”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Legacy Assessment and Risk Analysis
  2. Test Coverage Establishment
  3. Incremental Migration Implementation
  4. Performance Validation and Optimization
  5. Migration Completion and Documentation

What it can do on your machine

Read from SKILL.md and the folder at commit 755bc35. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Framework Migration Legacy Modernize loads about 2.8k tokens when it runs. Until then it costs about 59 tokens; SKILL.md has 1,282 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~59
When it runs · the whole SKILL.md, loaded when a task matches
~2.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,282 words (~2,831 tokens).

“Orchestrate a comprehensive legacy system modernization using the strangler fig pattern, enabling gradual replacement of outdated components while maintaining continuous business operations through expert agent coordination.”

— opening of SKILL.md by aiskillstore
name
framework-migration-legacy-modernize
risk
unknown
source
community
date_added
2026-02-27

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills/sickn33/framework-migration-legacy-modernize of aiskillstore/marketplace.

  • SKILL.md
  • skill-report.json

Open the folder on GitHubat commit 755bc35

Used in 7 other repositories

We found 16 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 7 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Framework Migration Legacy Modernize next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Framework Migration Legacy Modernize compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Framework Migration Legacy Modernize this skillaiskillstore/marketplace4307 repos~2.8kAutomated safety check: PassNone
Code Refactoring Workflowluongnv89/claude-howto42k—~3.1kAutomated safety check: PassMIT
Convert Internal Package to TypeScriptTryGhost/Ghost56k—~1.2kAutomated safety check: PassMIT
jscpd Code Migration Trackerkucherenko/jscpd6.4k—~5kAutomated safety check: PassMIT
Rails Upgrade Assistantombulabs/claude-code_rails-upgrade-skill389—~2.7kAutomated safety check: PassMIT
Directory Build Organizationmicrosoft/testfx1k1 repos~2.5kAutomated safety check: PassMIT

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Categories

Questions about Framework Migration Legacy Modernize

What does Framework Migration Legacy Modernize do?

Orchestrate a comprehensive legacy system modernization using the strangler fig pattern, enabling gradual replacement of outdated components while maintaining continuous business operations through ex. Framework Migration Legacy Modernize is an agent skill from aiskillstore/marketplace.

When should I use Framework Migration Legacy Modernize?

Framework Migration Legacy Modernize fits situations like: tasks that involve Legacy modernization.

How do I install Framework Migration Legacy Modernize in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill framework-migration-legacy-modernize -a claude-code`. Or copy the skill folder (skills/sickn33/framework-migration-legacy-modernize in aiskillstore/marketplace) into .claude/skills/framework-migration-legacy-modernize in your project. Claude Code loads it when a task matches its description.

How do I install Framework Migration Legacy Modernize in Codex?

Run `npx skills add aiskillstore/marketplace --skill framework-migration-legacy-modernize -a codex`. Or copy the skill folder (skills/sickn33/framework-migration-legacy-modernize in aiskillstore/marketplace) into .agents/skills/framework-migration-legacy-modernize in your project. Codex loads it when a task matches its description.

Can I use Framework Migration Legacy Modernize in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill framework-migration-legacy-modernize -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/framework-migration-legacy-modernize, .gemini/skills/framework-migration-legacy-modernize, .github/skills/framework-migration-legacy-modernize and .opencode/skills/framework-migration-legacy-modernize in your project.

What does Framework Migration Legacy Modernize need to run?

SKILL.md names no scripts, command-line tools or credentials: Framework Migration Legacy Modernize is instructions for the agent only.

Does Framework Migration Legacy Modernize access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Framework Migration Legacy Modernize safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Framework Migration Legacy Modernize use?

No licence was found for Framework Migration Legacy Modernize or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Framework Migration Legacy Modernize use?

About 2.8k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Framework Migration Legacy Modernize?

Skills that share tags, products or a category with Framework Migration Legacy Modernize: Code Refactoring Workflow (luongnv89/claude-howto, 42k stars), Convert Internal Package to TypeScript (TryGhost/Ghost, 56k stars), jscpd Code Migration Tracker (kucherenko/jscpd, 6.4k stars) and Rails Upgrade Assistant (ombulabs/claude-code_rails-upgrade-skill, 389 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Framework Migration Legacy Modernize?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,044 skills in this directory. The repository was last updated on October 9, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.