Open Source and Local Code Mode MCP in Deno Sandboxes

2 hours ago 2

Code Mode with MCP improves context efficiency and accuracy

Presenting MCP servers as code APIs rather than direct tool calls reduces token usage and improves task completion success rates.

Token Reduction

From

150,000

tokens to

2,000

tokens

Architecture

AI agents write code that executes in pctx sandboxesType-checked, compiled, and run securely • Authenticated MCP connectionsAI Agents (Bring any LLM)pctxTypeScript Compiler Sandbox• Type checking• Rich error feedback• No network accessExecution Sandbox• Authenticated MCP client connections• Restricted network• Tool call executionLocalSlackGitHubCustom

Code Mode with MCP improves context efficiency and accuracy

Presenting MCP servers as code APIs rather than direct tool calls reduces token usage and improves task completion success rates.

Token Reduction

From

150,000

tokens to

2,000

tokens

Architecture

AI agents write code that executes in pctx sandboxesType-checked, compiled, and run securely • Authenticated MCP connectionsAI Agents (Bring any LLM)pctxTypeScript Compiler Sandbox• Type checking• Rich error feedback• No network accessExecution Sandbox• Authenticated MCP client connections• Restricted network• Tool call executionLocalSlackGitHubCustom

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