Understand this story
On October 22, 2026, Action State Group Inc. released a set of open-source tools designed to let enterprises independently verify records of AI agent behavior. The toolkit consists of three parts: EvidenceBook, which preserves tamper-proof records; Terms Packs, which evaluate agent behavior; and Countersign, an independent verification service. EvidenceBook is released under the Apache 2.0 license and uses a signed Agent Action Capsules format along with cryptographic checkpoints; verification can be performed offline and is free of charge. Founder Steven Mih said the tools can verify that reported events actually occurred, but cannot confirm whether agreements were fulfilled, and that Countersign does not certify the truthfulness of results or the integrity of evidence. The tools have now been released, and there are no subsequent developments of fact.
AI-generated from public reports
Latest development · Report
Action State Launches Open Source Tool to Verify AI Agent Interaction RecordsDevelopments
1 confirmed developments
Action State launches open-source AI agent behavior verification tool
Source:SiliconANGLE
Reports and discussion timeline
Browse reports and discussion by time. Their evidence levels remain distinct.
Oct 22
SiliconANGLE
Action State Launches Open Source Tool to Verify AI Agent Interaction Records
Action State Group has released an open source toolset for enterprises to independently verify records of AI agent behavior, including EvidenceBook, which preserves tamper-proof records, Terms Packs, which evaluate agent behavior, and Countersign, an independent verification service. EvidenceBook is released under the Apache 2.0 license and uses a signed Agent Action Capsules format and cryptographic checkpoints; verification can be performed offline and is free. Founder Steven Mih said the tool can verify that reported events actually occurred, but cannot confirm whether agreements were fulfilled, and Countersign does not certify the authenticity of results or the integrity of evidence.