Published March 17, 2026 | Version 1.11 Technical note Open Agent Control Protocol: Admission Control for Agent Actions Authors/Creators Fernandez, Marcelo (Project leader) 1 Show affiliations 1. TraslaIA Description Agent Control Protocol (ACP) is a formal technical specification for governance of autonomous agents in B2B institutional environments. ACP is the admission control layer between agent intent and system state mutation: before any agent action reaches execution, it must pass a cryptographic admission check that validates identity, capability scope, delegation chain, and policy compliance simultaneously. ACP defines the mechanisms of cryptographic identity, capability-based authorization, deterministic risk evaluation, verifiable chained delegation, transitive revocation, and immutable auditing that a system must implement for autonomous agents to operate under explicit institutional control. The v1.11 specification comprises 36 technical documents organized into five conformance levels (L1-L5). It includes a Go reference implementation of 22 packages covering all L1-L4 capabilities, 42 signed conformance test vectors (Ed25519 + SHA-256), and an OpenAPI 3.1.0 specification for all HTTP endpoints. Specification and implementation: https://github.com/chelof100/acp-framework-en Files ACP-paper-v1.11.pdf.pdf Files (342.2 kB) Name Size Download all ACP-paper-v1.11.pdf.pdf md5:012d549ddd711366bb6518fc03bebe9e 342.2 kB Preview Download Additional details Related works Is supplement to Software: https://github.com/chelof100/acp-framework-en (URL) Dates Submitted 2026-03-17 Software Repository URL https://github.com/chelof100/acp-framework-en Programming language Go Development Status Active