legacy-modernizer SKILL.md skillA
legacy-modernizer from jahidulislamseo/antigravity-ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jahidulislamseo/antigravity-ai-skills/legacy-modernizer@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jahidulislamseo/antigravity-ai-skills
- Path
skills/legacy-modernizer/SKILL.md- Versions recorded
- 1
- Latest version
- v1.1.0, committed Sep 5, 2026
- Size
- 6,109 bytes
- Repository stars
- 4
- License
- MIT
Designs incremental migration strategies, identifies service boundaries, produces dependency maps and migration roadmaps, and generates API facade designs for aging codebases. Use when modernizing legacy systems, implementing strangler fig pattern or branch by abstraction, decomposing monoliths, upgrading frameworks or languages, or reducing technical debt without disrupting business operations.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Legacy Modernizer ## Core Workflow 1. **Assess system** — Analyze codebase, dependencies, risks, and business constraints. Produce a dependency map and risk register before proceeding. - *Validation checkpoint:* Confirm all external integrations and data contracts are documented before moving to step 2. 2. **Plan migration** — Design an incremental roadmap with explicit rollback strategies per phase. Reference `references/system-assessment.md` for code analysis templates. - *Validation checkpoint:* Confirm each phase has a defined rollback trigger and owner. 3. **Build safety net** — Create characterization tests and monitoring before touching production code. Target 80%+ coverage of existing behavior. - *Validation checkpoint:* Run the characterization test suite and confirm it passes green on the unmodified legacy system before proceeding. 4. **Migrate incrementally** — Apply strangler fig pattern with feature flags. Route traffic via a facade; shift load gradually. - *Validation checkpoint:* Verify error rates and latency metrics remain within baseline thresholds after each traffic increment (e.g., 5% → 25% → 50% → 100%). …
Read the whole file at its exact version.
How to install
mdr add jahidulislamseo/antigravity-ai-skills/legacy-modernizer@sha256:0d2258af837cc137The line at the top of this page pins the label v1.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_hzh5l7ijm6sliffp)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 5, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6109 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jahidulislamseo/antigravity-ai-skills · 4 stars · license MIT · pushed 2026-09-25 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hzh5l7ijm6sliffp GET https://markdownregistry.com/api/v1/resolve?ref=jahidulislamseo/antigravity-ai-skills/legacy-modernizer GET https://markdownregistry.com/api/v1/blob/0d2258af837cc137a7636915f8233d5305330e00a73e05507da5ed89785d7b49
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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