Claude MarketplacesSubmit
anthropics avatar

Claude Opus 4 5 Migration

anthropics/claude-codeOfficial

When Anthropic releases a new model, updating your codebase means hunting through API calls, adjusting model strings across different platforms, and dealing with behavioral quirks. This migration tool does the grunt work: it scans for old Sonnet 4.0/4.5 and Opus 4.1 references, updates them to proper Opus 4.5 strings for your platform (Anthropic API, Bedrock, Vertex, Azure), removes unsupported beta headers, and adds the effort parameter. It also knows about Opus 4.5's tendency to overtrigger tools and over-engineer solutions, so it can adjust prompts when those issues surface. Beats manually tracking down every model reference and debugging prompt regressions.

skills.sh installs
11.8K
GitHub stars
155.1K
last updated
Aug 21, 2026
View on GitHub

Install

$ npx -y skills add anthropics/claude-code --skill claude-opus-4-5-migration --agent claude-code

Installs into .claude/skills of the current project.

Files

When Anthropic releases a new model, updating your codebase means hunting through API calls, adjusting model strings across different platforms, and dealing with behavioral quirks. This migration tool does the grunt work: it scans for old Sonnet 4.0/4.5 and Opus 4.1 references, updates them to proper Opus 4.5 strings for your platform (Anthropic API, Bedrock, Vertex, Azure), removes unsupported beta headers, and adds the effort parameter. It also knows about Opus 4.5's tendency to overtrigger tools and over-engineer solutions, so it can adjust prompts when those issues surface. Beats manually tracking down every model reference and debugging prompt regressions.

Browse the repository on GitHub

Sponsors

Promote your product hereReach 125k+ visitors monthlyPromote your product hereReach 125k+ visitors monthlyAgent CaffeineSponsoredClose your lid, come back to finished workSnugSponsoredThe clipboard manager for the AI eraPromote your product hereReach 125k+ visitors monthlyWaxSponsoredBlock anything with supervision, without erasing your iPhonePromote your product hereReach 125k+ visitors monthlyknobsSponsoredSee your site on any phone, any day, in any language

Details

Repository
github.com/anthropics/claude-code
Categories
Backend & APIs, AI & Agent Building

More from anthropics/claude-code

All 10

Recommended

More Backend & APIs
1pluginagentmarketplace avatarjava-spring-bootpluginagentmarketplace/custom-plugin-javaBuild production Spring Boot applications - REST APIs, Security, Data, Actuator11.8Kskills.sh installs
2worldwonderer avatarbrowser-cdpworldwonderer/oh-story-claudecodeUse this skill when you need to control a Chrome browser via CDP (Chrome DevTools Protocol) to reuse existing login sessions. Covers: launching Chrome in debug 11.8Kskills.sh installs
3wshobson avatargo-concurrency-patternswshobson/agentsMaster Go concurrency with goroutines, channels, sync primitives, and context. Use when building concurrent Go applications, implementing worker pools, or debug11.7Kskills.sh installs
4earthtojake avatarurdfearthtojake/text-to-cadURDF robot description generation and default generation-time validation. Use when creating, editing, regenerating, inspecting, or debugging `.urdf` files, Pyth11.5Kskills.sh installs
5wshobson avatarincident-runbook-templateswshobson/agentsCreate structured incident response runbooks with step-by-step procedures, escalation paths, and recovery actions. Use this skill when building a service outage11.4Kskills.sh installs
6intellectronica avatarcontext7intellectronica/agent-skillsRetrieve up-to-date documentation for software libraries, frameworks, and components via the Context7 API. This skill should be used when looking up documentati11.3Kskills.sh installs