Build What Your Workflow Needs With Custom Actions

Custom Actions is now live! Teams can build their own actions on top of the apps their business already connects to. Describe what you need in plain language or edit the code yourself, and StackAI writes it, sandboxes it, and drops it into the workflow builder beside every native action. Your agents are no longer limited to the operations that come prebuilt by StackAI's engineering team.

Key Takeaways

• Build what you need, without a developer: describe the missing action in plain language, and StackAI writes and runs it.

• Secure by default: actions run sandboxed on your existing connections, so authentication and governance follow the same rules as native actions.

• End-to-end version control: each workflow stays pinned to the version it was built on, so a later edit can't break what's already running.

When the Action You Need Isn't There 

Every connector covers two kinds of work. There are the common operations every team needs, and StackAI ships plenty of them: create a record, send a message, look up a row. Then there are the more particular ones your workflow depends on, like setting a priority, applying your team's naming convention, or chaining three requests into a single result. The latter is more specific to how your business works, which is exactly why no provider's connector ships them.

This gap costs engineering time wiring generic code nodes, one-off logic nobody else can reuse, and a backlog of workflows that never get built. This is why StackAI built Custom Actions, so your team can add those missing actions themselves, inside the governance IT already approved.

How Custom Actions Works

Custom Actions is a conversational interface for building new actions on the apps you already use, found in Settings > Custom Actions. Pick the app, describe the action you need, and the StackAI agent reads that provider's API docs and drafts the schema and the code.

It handles the work that otherwise stalls a workflow:

• Describing instead of coding: turns a plain-language request into a working action, with the agent reading the provider's API docs to draft the schema and code.

• Editing when you want to: General, Schema and Code tabs let a developer refine anything the agent wrote.

• Testing before anything ships: runs against a real connection with Test Action, so no workflow inherits an untested action.

• Reusing across the organization: saves the action into the builder and every agent's tool list, so one person builds it and everyone else drags it in.

• Secure by default: actions use admin-governed connections, and each saved version is frozen, so no key is hardcoded and no edit reaches production.

Get Started Today

Most of what your workflows need is already a native action. For everything else, Custom Actions lets your team build it in plain language, on a connection IT already governs. Custom integrations are coming next, so when an app isn't on the list at all, your team will be able to build that too.

Want to see what your team could build? Get a demo with our team of AI experts here.