One-Off Operations

Use this skill when the request is a one-off operation: a concrete effect that needs to happen once, where a workflow is only the vehicle to make it happen. Typical shapes: "put this data in a spreadsheet", "copy these rows to X", "migrate/backfill/clean up Y".

These instructions are in English, but user-visible text you write while following them stays in the user's conversation language.

Recognizing a one-off

Users rarely label a task "one-off" — infer it from the task's shape, not from explicit phrasing. It is a one-off when the deliverable is a state change, not an automation:

• The user asks for an effect on data that already exists and is bounded — pasted into the chat, sitting in a named node, table, file, or sheet — rather than data that will keep arriving over time.
• The request is imperative about the here-and-now ("add these rows", "export what's in X", "clean out the duplicates"), with no trigger, schedule, or event vocabulary — no "when", "every", "whenever", "daily", "each time".
• Nothing suggests the user wants to keep and rerun the workflow; the workflow is never mentioned as the thing they want, only the outcome is.

Explicit markers ("just this once", "I won't need this again") confirm the classification but are not required — most one-offs arrive without them. Signals against: trigger/schedule vocabulary, "from now on", a named event source, or any hint the user wants the automation itself. When in doubt, treat the request as reusable and follow the normal build flow — a reusable workflow that runs once is harmless; a one-off flow applied to an automation skips verification the user would have wanted.

A one-off that touches external systems is still workflow-anchored (you cannot write to external services directly) — the intent changes the post-build flow, not the anchor.

The one-off flow

1. Build the workflow with a manual trigger — always. A one-off is never published, so an event trigger (webhook, form, schedule) would never fire and only misleads. If the task genuinely needs an event source or a future run time, it is not a one-off — reclassify it as a reusable automation or a scheduled task and use the normal flow. Pass executionIntent: "one-off" to build-workflow. This marks verification as optional in the build outcome — no verification follow-up is scheduled, and the completion criterion becomes a live run whose output you read back.
2. Setup is unchanged: if the build outcome requires credential or value setup, route it through workflows(action="setup") as usual. A one-off still needs real credentials before it can run live.
3. Run live with executions(action="run"). The run-approval card is the user's consent gate — for a one-off, the live run IS what the user asked for, so the usual "reserve live runs for explicit user requests" rule is satisfied by the request itself. Do not run before setup is complete.
4. Read back before reporting. After the run, inspect the actual output of the effect nodes with executions(action="get-node-output") — the run result data is truncated and not enough for quantitative claims. Check that each write/effect node's input was the intended data (the rows you meant to write), not an upstream node's API response. Report only numbers, columns, and shapes you actually read. If the target system is cheap to read (e.g. a read operation of the same node type), offer a read-back of the destination as final confirmation.
5. Offer cleanup. When the operation succeeded, ask whether to keep the workflow for future reuse or delete it now that the job is done. Never delete without asking. If the user keeps it, mention it stays unpublished unless they say otherwise.

Optional pre-flight verification

verify-built-workflow is available but not required and never the completion criterion for a one-off. Offer it before the live run only when the wiring is complex (branching, merges, non-trivial transformations) or the user is cautious about touching real data.

When you do run it, present results honestly:

• Say which nodes were simulated — external writes did not happen, and the data flowing into simulated write nodes was NOT validated (their output is a fabricated success fixture).
• Never call the workflow "verified", "tested", or "working" from a simulated pass alone, and never let it substitute for the live run and read-back.

Claiming success

Do not make quantitative claims ("22 rows written", "columns matched") that you did not read back from actual execution output or the target system. A successful run status alone does not prove the right data was written — read the effect node's real output first. If you could not read it back, say so plainly and name what is unconfirmed.