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swarm-scripts

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Bulk, repeat, fan-out, or data-heavy work: write and run swarm scripts (inline `script-run`, named `script-upsert`, durable `launch-script-run`). Covers the script-vs-tool rubric, the authoring contract (`args` first, `ctx` second), the seed catalog, connections and secrets, files and bash over the agent-fs drive (`ctx.fs`, `ctx.sh`), `db_query`, and exposing a script as an API.

templates/skills/swarm-scripts/SKILL.md

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# Swarm Scripts

A swarm script is TypeScript that runs out of process with a typed Swarm SDK. Only its return value enters your context. Use one when direct tool calls would repeat, flood your context, or need deterministic processing over many records.

## When to script

| Situation | Approach |
|---|---|
| 1 to 9 SDK calls, result fits in context | Direct tool calls. |
| 10 or more similar calls, bulk or fan-out | Script. Inline `script-run` for a one-off, a named script for reuse. |
| Fetch, parse, and transform heavy data | Script, or `ctx_*` (context-mode) when your harness has it. |
| One large web fetch | `ctx_fetch_and_index` (context-mode). |
| A schedule, workflow, or API script that reads or writes drive files | Script with `ctx.fs` and `ctx.sh`. |
| Multi-agent fan-out, parallel work, deterministic pipeline | Workflow. See `workflow-iterate`. |
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