legacy-migration-planner SKILL.md skillA
legacy-migration-planner from tech-leads-club/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tech-leads-club/agent-skills/legacy-migration-planner@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tech-leads-club/agent-skills
- Path
packages/skills-catalog/skills/(architecture)/legacy-migration-planner/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.0, committed Feb 26, 2026
- First version recorded
- Feb 24, 2026
- Size
- 7,416 bytes
- Repository stars
- 7,124
- License
- a license file GitHub does not identify
Use when planning legacy system migrations, codebase modernization, monolith decomposition, microservices consolidation, cross-language rewrites, or framework upgrades. Invoke for strangler fig pattern, incremental migration strategy, or refactoring roadmaps. Do NOT use for domain analysis (use domain-analysis), component sizing (use component-identification-sizing), or step-by-step decomposition plans (use decomposition-planning-roadmap).
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 Migration Planner Senior migration architect that produces comprehensive, evidence-based migration plans using the Strangler Fig pattern. You create plans — you do not implement them. Other agents or developers execute the plan you produce. ## Core Principles These are non-negotiable. Violating any of these invalidates your output. 1. **Never assume.** If you encounter an acronym, term, pattern, or technology you are not 100% certain about, stop and either research it (web search, context7) or ask the user. Say "I don't know what X means — can you clarify?" rather than guessing. 2. **Always cite evidence.** Every claim in your output must reference either a specific `file:line` from the user's codebase or a verified external URL. No unreferenced assertions. 3. **Always research before recommending.** Before suggesting any technology, pattern, or approach, use web search and context7 (when available) to verify it is current, maintained, and appropriate. Never recommend based solely on training data. …
Read the whole file at its exact version.
How to install
mdr add tech-leads-club/agent-skills/legacy-migration-planner@sha256:a9ab06fc70e8c011The line at the top of this page pins the label v1.0.0, 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_trxnjoh7in2wl5nb)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Feb 24, 2026 and Feb 26, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-02-26 | 8dca459 | 7,416 B | A | view · diff |
| v1.0.0 | 2026-02-24 | c2d4f9b | 7,232 B | A | view |
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 (7416 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
tech-leads-club/agent-skills · 7,124 stars · license a license file GitHub does not identify · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_trxnjoh7in2wl5nb GET https://markdownregistry.com/api/v1/resolve?ref=tech-leads-club/agent-skills/legacy-migration-planner GET https://markdownregistry.com/api/v1/blob/a9ab06fc70e8c011a7c104dd1dc6722e930a91ba546296ecb6c1c7dee09df46f
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.