claude-opus-4-5-migration
One-shot migration of prompts and code from Claude Sonnet 4.0/4.5 or Opus 4.1 to Opus 4.5.
🛡️ AgentReady threat assessment
MAESTRO 7-layer threat model + OWASP AIVSS risk score for claude-opus-4-5-migration, derived from its capabilities.
AIVSS 8.7 · High
View MAESTRO 7-layer threat model →Overview
This plugin skill migrates a codebase, prompts, and API calls from Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Claude Opus 4.5 in one pass, updating model strings and adjusting prompts for known Opus 4.5 behavioral differences (it explicitly does not migrate Haiku 4.5). It bundles reference docs on effort settings and prompt snippets read on demand.
Key features
- Automated model-string updates
- Prompt adjustments for Opus 4.5 behavior
- Bundled effort and prompt-snippet references
Use cases
- Upgrade an app from Sonnet 4.5 to Opus 4.5
- Adjust prompts for Opus 4.5 behavioral changes