Individual skill

full-codebase-migrator

Uses 1M context window to ingest an entire codebase and output a file-by-file migration plan. Supports JS to TS, React class to hooks, framework migrations, and more. Generates migration-plan.md with file inventory, dependency graph, migration order, file-by-file changes, estimated effort, and risk assessment.

full-codebase-migrator/SKILL.md

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Last checked: Nov 10, 2026

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Repository stars (not skill ratings): 425
Repository last updated: Oct 20, 2026
License: MIT

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SKILL.mdcore · 3,350 bytes
SKILL.mdcore · 3,350 bytes
SKILL.mdcore · 3,350 bytes
references/ingestion.mddoc · 4,410 bytes
references/migration-types.mddoc · 1,591 bytes
references/output-template.mddoc · 6,472 bytes
references/workflow-detail.mddoc · 6,629 bytes

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# Full Codebase Migrator

Leverage the full 1M token context window to ingest an entire codebase, understand its architecture end-to-end, and produce a comprehensive, file-by-file migration plan that a team can execute sequentially without conflicts.

## Contents

- `references/migration-types.md` -- supported migration types; when to use and when not to use this skill.
- `references/ingestion.md` -- architecture, glob patterns, metadata collection, read order, context budgeting, and dependency graph construction (Steps 0-2).
- `references/workflow-detail.md` -- per-file assessment, migration order, risk scoring, and effort estimation templates (Steps 3-6).
- `references/output-template.md` -- migration-plan.md and migration-plan.json templates, edge cases, and the final quality checklist (Steps 7-8).

## Workflow

1. Identify scope. Determine migration type, scope (full repo or directory), output location for migration-plan.md, and any exclusions or constraints. Infer from the user's prompt when already specified. See `references/migration-types.md` for supported types and fit.