A scripted `SubagentProvider` for testing the [subagent seam](../../subagent/subagent/README.md) without a model or a real child agent — the subagent analog of [`dsh-llm-replay`](../llm-replay/README.md).
It lets a test drive `ctx.subagents` and the model-facing `dsh-tool-subagent` through the **real cordis Loader / export path**, exercising provider registration, start-time capability validation, the run lifecycle (`result` / `cancel` / `dispose`), and the structured-output branch — all deterministically and keylessly.
## Usage
Load it as a plugin (functional shape: `name`/`inject`/`Config`/`apply`, no default). Config (all optional):
| Key | Default | Meaning |
|---|---|---|
| `name` | `mock` | Registry name to register the provider under. |
| `reply` | `mock subagent reply` | The scripted child's final answer text. |