feat(node-provider): implement anthropic provider

[calchiwo]

Add Anthropic provider for the Node CLI.

Implements the provider using the same contract as existing providers and integrates with the provider registry and configuration system.

Changes

• Implemented AnthropicProvider

• Integrated provider into registry

• Enabled usage via --llm anthropic

• Added support for Anthropic config in config.toml

Provider Behavior

• Requires api_key

• Uses default model if not provided

• Supports optional model override via config

• Uses official Anthropic SDK

• Returns generated text from messages.create

All Anthropic-specific logic is contained within the provider.

Usage

explainthisrepo owner/repo --llm anthropic

Configuration

[llm]
provider = "anthropic"

[providers.anthropic]
api_key = "..."
model = "claude-3-5-sonnet-20241022"

Notes

Model is optional and defaults to claude-3-5-sonnet-20241022

No changes to CLI or core generation pipeline were required

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Project	Deployment	Actions	Updated (UTC)
explainthisrepo	Ready	Preview, Comment	Mar 22, 2026 8:25pm