A backend is agent-operable when a coding agent can create, inspect, use, recover, transfer, and remove its resources through structured contracts. Runtime API access is only one step. Project setup, credentials, failures, ownership, and cleanup count too.
The fastest test is to follow one database or deployment through its complete lifecycle. A missing status or deletion contract is still a human dashboard dependency.
Agent-accessible and agent-operable are different
An agent-accessible backend lets an application call a database or API after a human has configured it. An agent-operable backend also lets an authorized agent perform the administrative work needed to reach and maintain that state.
| Lifecycle step | Accessible backend | Operable backend |
|---|---|---|
| Create | Human uses a console | Agent calls a typed create action |
| Discover | Human copies IDs and URLs | Agent receives structured identifiers and endpoints |
| Use | Application calls the service | Application uses a scoped data-plane credential |
| Recover | Human reads logs and retries | Agent reads operation state and follows a retry contract |
| Rotate | Human replaces secrets | Agent requests rotation without seeing upstream credentials |
| Transfer | Account already belongs to a person | Human claims or assumes ownership through an explicit flow |
| Delete | Console action | Authorized delete action with dependency and recovery rules |
The agent-native infrastructure guide applies the same distinction across a full platform.
Separate control and data planes
The control plane creates resources, changes configuration, reports status, handles ownership, and enforces billing. The data plane serves application requests. Their credentials should differ.
A coding agent may need a management credential while building. The deployed application should receive only the data-plane access it needs. A browser bundle should receive neither unless the credential is explicitly public or exchanged for a short-lived session token.
NIST's zero trust guidance describes access decisions around subjects, resources, and policy rather than network location. The same principle helps here: authorize the agent's identity for the requested resource and action, then enforce the decision at the service.
Make resource creation observable
A create call should return a resource ID and an operation state. If work continues asynchronously, expose a status action with stable terminal states such as ready, failed, or deleted.
Do not make the agent infer readiness from a dashboard URL or the existence of a DNS record. The platform should say what is ready and what remains pending.
Define safe write behavior
Every write should document:
- whether it is idempotent;
- which operation or idempotency key identifies a retry;
- how long the server remembers that key;
- whether a timeout leaves the outcome known or unknown;
- how the caller retrieves the original result;
- which failures are safe to retry.
Stripe's idempotency documentation is a clear public example of storing and returning the first result for a key. Your contract may use different retention and parameter rules, but it needs to be equally explicit.
Return errors that change the next action
An agent needs a stable code, a short message, and structured details. Useful distinctions include:
| Error | Next action |
|---|---|
invalid_request |
Correct the named fields |
not_authorized |
Stop and request a narrower or different identity |
approval_required |
Show the exact action to a human |
operation_in_progress |
Poll the supplied operation ID |
rate_limited |
Wait until the supplied retry time |
quota_exceeded |
Stop or ask before changing plan or spend |
dependency_conflict |
Resolve the named dependent resource |
An HTML error page or generic 500 forces the agent to guess. Guessing during provisioning produces duplicate resources and bad cleanup.
Keep ownership separate from bootstrap
An agent may need to create an isolated project before the user wants an account. That project still needs an expiry and a later human claim path. Claiming should expand ownership only after explicit consent, and it should not expose the agent's temporary secret in the approval URL.
Cohesivity uses this pattern. npx @cohesivity/init creates or reuses a 72-hour ephemeral tenant. Resource docs live at /offerings/<name>, provisioning uses the management plane, and the application uses separate edge credentials. A human claim is a later consent step.
The practical guide to provisioning backend resources with a coding agent shows the sequence.
Test deletion before depending on the resource
Create a disposable resource, interrupt creation, repeat it, rotate access, and delete it. Confirm dependent services either survive or block deletion with a structured explanation. Confirm the old credential stops working.
The prompt below runs the same lifecycle review against one resource already used by this project, without touching the provider.