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by startups.studio

by Startups.Studio

Core grammar Action

Action.undo

POST /{namespace}/actions/{action}/undo

Undo reverses a done Action: it deletes the records the Action created and restores what it changed, each restorable.

Noun: Action
Mode: do
Event: Action.undone

You, to your agent

Undo the latest action.

curl -X POST https://api.sb/leaseline.app/actions/act_br07HsG8MG/undo \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY"

import { $ } from 'startup-builder'

const action = await $.Action.undo({ action: 'act_br07HsG8MG' })

npx startup-builder do Action.undo --json '{"action":"act_br07HsG8MG"}'

{
  "name": "do",
  "arguments": {
    "code": "return await $.Action.undo({ action: 'act_br07HsG8MG' })"
  }
}

Inputs

Input	Type	Required	Description
`action`	Action	required	The done Action to undo.

Outputs

Output	Type	Required	Description
`action`	Action	required	The undone Action, linked to the records it removed and restored.

Effects

Fact	Value
Action class	None: it runs within its seat's Limits
Door	Two-way: it runs at once
Modes	`try` previews it and stores nothing; `send` returns a pending Action; `do` (default) waits for the result
Idempotent	With a key: a repeat with the same `Idempotency-Key` returns the first Action, and a repeat without one runs again
Undo	Action.undo reverses it
Emits	`Action.undone`

Deletes each record the Action created as a soft delete, so Thing.restore brings it back.
Money the Action moved returns through a new Action, such as a refund; a Transaction is never removed.
A sent Message stays sent; undo records that it cannot unsend it.

Refuses when

Check	Error	Fix	Then call
The key is valid, but its scopes do not allow this operation.	`forbidden`	Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them.	None.

When it waits

Gate	Default
Decision class	Low: two-way, nothing at stake
Delay window	None: it runs once review passes.
Limit	The call Limit of the Permission it runs under.
Over the Limit	It waits `pending` for an Approval from the Founder. Approved, it runs; refused, it ends `refused` with `limit-exceeded`; unanswered by its deadline, it ends `canceled`.

Action.retry

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