Add Provider Plugin for Anthropic

[warengonzaga]

Overview

Add a provider plugin to integrate Anthropic as a new LLM provider in Tiny Claw. This plugin should allow users to use Anthropic's Claude models in their conversational agents, expanding the range of available LLM backends.

Requirements

• Implement a provider plugin following the existing contract (ProviderPlugin from @tinyclaw/types).
• The plugin should support chat functionality and availability checks.
• Expose pairing/unpairing tools for conversational setup.
• Follow secret/config conventions (e.g., provider.anthropic.apiKey, providers.anthropic.model).
• Ensure the plugin can be enabled/disabled in configuration.
• Provide documentation and example usage.

Motivation

• Expands LLM provider options for Tiny Claw users.
• Allows routing complex queries through Anthropic/Claude if desired.

Acceptance Criteria

• Plugin provider available for Anthropic
• Conversational pairing tools implemented
• Documentation updated

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Labels: enhancement, plugin, provider, feature