Environments

Every agent has three environments: development, staging and production. Development is the agent you are working on, saved work and unsaved alike. It is the only one you edit. Staging and production are snapshots. Each holds one version of the agent and keeps serving it until you point it at another. A new agent has nothing in either.

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Prerequisites

• An agent you have built, from Agent builder
• An owner, admin, operator or prompter role. A viewer can see the Environments tab but cannot publish, promote, roll back or save a variable
• Optional: evaluations configured on staging, if you want them to gate the publish into staging and the promotion out of it. See Evaluations

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Where environments live

Inside an agent, Environments is under Configure. It has two tabs, Environments and Variables. There is no organization-wide view. Environments belong to one agent, and you reach them from that agent. The Environments tab lists the release as rows that read from the bottom up: Development, Staging, Evaluations, Experiment and Production. Production sits at the top because it is where the other rows lead. Expand a row to see its details. Staging and production each show the Version they are pinned to, and usually when it arrived, Deployed on production and Created on staging. Development shows neither, because it is the live head rather than a pin. Production holding nothing shows no version. The controls that act on what is live, Rollback, Staged rollout and Promote, sit in the page header above the rows.

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Publish

Publish sits in two places and does the same thing in both: the button at the top right of the builder, and the Development row on the Environments tab. It saves your current work as a new version, then ships that exact version somewhere. Where it ships depends on one thing: whether this agent has ever been in production.

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The first publish goes straight to production

An agent that has never been live skips staging. There is no menu, just one button. The confirmation asks for a phone number, and tells you that publishing changes what the agent answers but not which numbers or pathways reach it. You can publish without attaching one. Staging gets the same version on the way through, so it does not start out behind.

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After that, Publish offers a choice

Once production holds a version, Publish opens a menu with two destinations:

• Publish to staging saves a new version and pins it to staging. Production does not move, so callers keep the version it already holds.
• Force promote sends development straight to production in one step, skipping staging. Staging is repointed to that version on the way, which the confirmation says outright.

Picking from the menu is not agreeing to ship. Each destination opens its own confirmation.

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Promote to production

Promote in the Environments page header points production at the version staging is holding. Nothing is copied and nothing is rebuilt. Its confirmation carries the same phone number section and the same reassurance as the first publish: promoting does not change which numbers or pathways reach the agent.

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Attach a number to staging

On enterprise plans, you can point a phone number at staging instead of production. Calls to that number run the version pinned to staging, so you can dial the staging version before you promote it.

1. Publish to staging first. With nothing on staging, the Staging option is disabled and reads Not deployed.
2. Inside the agent, open Channels, then the Calls tab, and select Add a number.
3. In Attach a number, pick the number, then set Environment to Staging. Each option shows the version deployed to that environment.

Every number on the Channels page shows which environment it answers on, Production or Staging. A staging number runs staging’s variable values, so every variable the agent references needs a staging value before you can attach. Numbers can’t be attached to staging on dedicated infrastructure. To move a number back to production, detach it and attach it again with Production selected.

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Roll back

To go back, Rollback in the Environments page header lists the versions production held before and repins to one you choose. It is a repoint, not a rebuild.

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Activity and version compare

The Activity section below the rows is a change log for the agent. Each row records one event, such as Version saved, Published to staging, Promoted to production or Rolled back production. Each row shows:

• Prior version: what that environment was pinned to before the event. For Version saved, it is the previous save. A first publish shows a dash.
• New version: the version the event put in place.
• By and When: who made the change and when it happened.
• Compare: opens the two versions side by side.

To see what changed between two versions, select Compare or either version on a row. The compare window opens on that row’s pair. Use the Before and After pickers to compare any two published versions instead. Switch between two views:

• Simple steps through each field that changed.
• JSON shows the whole configuration of both versions side by side, with changed words highlighted. Unchanged lines fold away behind Show N unchanged lines.

When two versions differ too much to line up in the JSON view, the window points you to Simple instead. Rows have no Compare when both sides are the same version, or when either side has no published version number.

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The evaluation gate

Evaluations on staging can gate both moves, and the two directions fail differently. You attach them from the Evaluations row above Staging, covered in Evaluations. With no evaluations configured at all, neither move is gated and both happen immediately. Configuring any evaluation changes that, even one you have not marked Req’d. The run still executes and the publish waits for it, which takes as long as the conversations take. What the required flag decides is whether a verdict can stop you: a judge, the evaluation that scores a run, reports its result and blocks nothing when it is not required. Publishing to staging saves your changes as a new version, runs the evaluations against that exact version, and only assigns it a version number and pins it to staging once every required evaluation passes. When a required evaluation fails, a toast reads Publish blocked with the number that failed. A run that times out or errors stops the publish too, with its own message. A blocked promotion is stopped twice. The dashboard dims Promote, explains why on hover, and does nothing if you press it. The server enforces the same rule again on the wire, which is what catches an API caller. Either way production keeps serving the version it already had. A judge scores a rate, not a verdict per conversation. It passes when half or more of the scored conversations match the target, so a single bad conversation does not necessarily fail the run. Test cases default to an odd number of conversations, which keeps ties rare.

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Variables

The Variables tab holds keys and values that belong to an environment rather than to the agent. Pick Development, Staging or Production to choose which set you are editing. The same key can carry a different value in development, staging and production. Reference one anywhere in the agent’s configuration as {"{{env.KEY}}"}, and it resolves to the running environment’s value when a call starts, which is how an agent points at a test system while it is on staging and a real one once it is promoted. A variable nothing references does nothing. Marking a value Secret stores it in your secret vault and keeps only a reference here. It cannot be read back afterwards.

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Common failures

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Next steps

Docs for agents: llms.txt