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scriptorium/docs/consumers/api.md

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# Consumer Integration Overview
This guide helps applications choose a Scriptorium interface and understand
their responsibilities. The linked contracts own interface syntax and wire
semantics.
| Interface | Use when |
| --- | --- |
| Go package | The consumer is Go and needs typed requests, results, or an injected LLM client. |
| CLI subprocess | The consumer needs process isolation or is not written in Go. |
| HTTP API | The consumer needs a service boundary or remote access. |
- Go package: [package contract](pkg-scriptorium.md)
- CLI subprocess: [subprocess integration](../integrations/subprocess.md)
- HTTP service: [HTTP API reference](../api.md)
- Prompt, profile, schema, and credential configuration: [configuration reference](../config.md)
## Minimal Go Use
```go
engine, err := scriptorium.NewEngine(scriptorium.Config{
PromptDir: "./examples/prompts",
ProfileDir: "./examples/profiles",
})
if err != nil {
return err
}
prepared, err := engine.Prepare(ctx, scriptorium.RunRequest{
PromptID: "generic.markdown_summary",
Inputs: map[string]scriptorium.ArtifactRef{
"transcript": scriptorium.File("./examples/fixtures/transcript.md"),
},
})
if err != nil {
return err
}
_ = prepared
```
For a maintained program, see
[`examples/go-library/prepare`](../../examples/go-library/prepare).
## Consumer Responsibilities
Consumers are responsible for:
- selecting and deploying prompt, profile, and schema assets;
- supplying required inputs and template variables;
- supplying credentials through the applicable interface;
- protecting rendered prompts and generated artifacts as potentially sensitive;
- deciding whether validation-failed output is usable; and
- retrying only when another model call is acceptable.
Scriptorium does not persist run state. A retry can produce different output and
can incur another provider request. CLI exit behavior belongs to the
[CLI reference](../cli.md); HTTP status behavior belongs to the
[HTTP API reference](../api.md); package errors and results belong to the
[package contract](pkg-scriptorium.md).