Arc 14 Dev Series Builds a Policy-Governed AI Agent on Solana Blockchain

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A developer series called Arc 14, spanning Days 92–98, documented the step-by-step construction of an AI agent with controlled access to the Solana blockchain. The project used Anthropic's Claude model paired with a custom policy engine to ensure the AI could propose actions but never unilaterally execute transactions. A core design principle kept the wallet's private key inside the application layer, completely hidden from the model's context, so signing authority was never delegated to the AI. Each tool available to the agent was tightly scoped with strict input schemas and descriptions to prevent misuse from model errors or misinterpretations. The series progressed from read-only data queries to sending SOL on devnet, demonstrating how agentic blockchain systems can be made safer through strict application-level guardrails.

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