CLAUDE 4 SHIPS AGENT‑NATIVE API AND CLAUDE CODE GA
Anthropic shipped Claude 4 with agent‑native APIs and Claude Code GA, making long‑running, tool‑using workflows practical. [Claude 4](https://www.anthropic.com...
Anthropic shipped Claude 4 with agent‑native APIs and Claude Code GA, making long‑running, tool‑using workflows practical.
Claude 4 adds extended thinking with tool use (beta), a code execution tool, an MCP connector, a Files API, and prompt caching. Opus 4 leads coding benchmarks and both models run in fast or extended modes across the API, Bedrock, and Vertex at prior Opus/Sonnet prices.
Claude Code is now GA with background jobs via GitHub Actions and native VS Code/JetBrains edits for true pair‑programming. If you proxy usage, tokscale v4.9.0 fixes a bug that rewrote Claude Code credentials.
Claude’s API now supports agent‑native patterns (tool calls during reasoning, code exec, files, caching) that reduce glue code you maintain.
Claude Code GA integrates with IDEs and CI, making AI changes visible in files and runnable in background jobs.
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Run an end‑to‑end agent that alternates extended thinking with tool calls (search, code exec) and measure accuracy, latency, and tool budgets.
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Use Claude Code via GitHub Actions for multi‑hour background refactors or data pipeline fixes; compare drift, PR quality, and retries vs your baseline.
Legacy codebase integration strategies...
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Swap your existing Claude integration to Opus/Sonnet 4 and enable Files API + prompt caching; watch token spend and context churn.
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If you route via proxies, upgrade tokscale to v4.9.0 to avoid the Claude Code credential rewrite issue before rollout.
Fresh architecture paradigms...
- 01.
Design agents around the code execution tool + MCP connectors with Files as working memory; default to Sonnet 4, escalate to Opus 4 for hard cases.
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Treat GitHub Actions as the agent runner for long jobs; enforce guardrails with tests and change review on every AI edit.
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