Codezero Launches Cordon — The Credential Containment Layer the AI Coding Agent Era Has Been Missing

AI coding agents — Claude Code, Codex, Hermes, and their growing cohort — are now indispensable to modern software development. They write code, call APIs, run commands, and automate workflows at extraordinary speed. But as they do all of that, they carry something organisations cannot afford to lose: credentials. API keys, tokens, secrets, and authentication details that sit in environment variables, configuration files, and memory — fully visible to the agents running them, and to anyone or anything that manages to compromise those agents. Codezero has launched Cordon to close that gap with a single command.

Cordon is a free, one-command credential containment layer that sits at the network level between AI coding agents and the external services they call. Available immediately for Claude Code, Codex, and Hermes — with zero code changes required — it ensures that no credential is ever written to memory, loaded into an agent's environment, or exposed in a log or model context window. Agents keep doing everything they are built to do. What they cannot do is see, access, or leak an organisation's secrets.

"The uncomfortable truth in security is that the industry has built incredible tools — vaults, identity providers, policy engines, secret scanners. Our team has watched organisations do everything right with every one of them and still get breached. Because as an industry we've been building more flashlights instead of solving the core plumbing problems by design."

— Codezero Team

The Gap Nobody Closed — Until Now

Every serious security stack already uses best practices: vaults protect secrets at rest, identity providers manage access, policy engines enforce rules, and scanners catch exposed credentials in code. Each of those tools does its job well — within its own boundary. But between those boundaries, credentials routinely slip through. They get loaded into environment variables, written to configuration files, or passed through a model's context window where the agent — and anything that compromises it — has full visibility.

AI coding agents make this structural gap significantly worse. A single agent can chain dozens of API calls per task, each one requiring credentials it currently holds in full. That means the blast radius of a compromised agent — whether through a prompt injection attack, a supply chain compromise, or a misconfigured environment — is not one credential, but every credential the agent has access to.

Cordon is the layer that closes that gap. Rather than adding more tools to the stack, it operates between the systems that manage credentials and the systems that consume them — intercepting outbound requests, injecting credentials at the moment of need, and immediately zeroizing them from memory. The gap that every other tool leaves open is precisely where Cordon operates.

How Cordon Works — The Four Principles

Cordon operates at the network layer, not at the application layer. This is a deliberate architectural choice: it means there is nothing to import, nothing to initialise, and no changes to existing code. Agents keep calling external services exactly the way they always have. Cordon handles the authentication in transit. The four core principles that govern how it works:

Available for Claude Code, Codex, and Hermes — Out of the Box

Cordon ships with batteries-included integrations for the three most widely used AI coding agents in enterprise environments today. For each, setup activates with a single command and requires no modifications to existing agent configuration, project structure, or workflow. Cordon intercepts outbound requests transparently — the agent operates freely, unaware that credential handling has been abstracted away entirely.

The Bigger Vision — Credentials That Can Never Be Breached

Codezero is releasing Cordon first to an initial cohort of early testing partners — deliberately paced to ensure the product solves the problem it was built for before expanding an attack surface that is already growing faster than the industry can track. This measured launch reflects a philosophy of building security infrastructure that is right before it is big.

The long-term mission is broader than Cordon alone. Codezero is working toward a world where no agent, developer, application, or pipeline ever sees a credential it uses — where containment is so seamless, so universal, and so structurally embedded in how software runs that a credential breach becomes an artefact of a previous era. Cordon is the first step toward making that vision a reality, starting with the agents already running across enterprise environments today.

The launch of Cordon is a pointed acknowledgement of a problem the security industry has been slowly approaching but never directly solved: in an agentic world, the attack surface for credential exposure is not shrinking — it is expanding with every new agent that gets deployed. Every existing tool manages credentials within its own boundary. Cordon manages them across the boundary gap that every other tool leaves open.

For engineering teams already running AI coding agents in production — or preparing to — Cordon represents the clearest answer yet to the question that has haunted agentic AI security from the start: what happens to credentials when an agent is the one holding them?