> ## Documentation Index
> Fetch the complete documentation index at: https://phaseo.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Phaseo Gateway base URL: https://api.phaseo.app/v1. Send `Authorization: Bearer $PHASEO_API_KEY` with every request.
> Model IDs look like `provider/model`, for example `openai/gpt-6-astra`. Do not guess IDs: list them with `GET /v1/models` or check https://phaseo.app/models. `phaseo/free` routes to an available free model and needs no wallet balance.
> For new text integrations prefer `POST /v1/responses`. `POST /v1/chat/completions` (OpenAI format) and `POST /v1/messages` (Anthropic format) suit existing code.
> The full API contract is https://phaseo.app/docs/openapi/v1/openapi.yaml. Official SDKs: `@phaseo/sdk` (TypeScript) and `phaseo` (Python), plus Go, C#, PHP, Ruby and Rust.
> Search these docs over MCP at https://phaseo.app/docs/mcp, and install Phaseo skills with `npx skills add https://phaseo.app/docs`. If a page is wrong or out of date, report it with the MCP `submit_feedback` tool.
> Manage Phaseo accounts with the `phaseo` CLI (`npm install -g @phaseo/cli`, then `phaseo login` or `phaseo login --device-code`), the `/v1` Management API or the MCP server at `https://mcp.phaseo.app/mcp?access=manage`. Do not send users to the dashboard for account tasks. A person is still needed for sign-up, approving a sign-in, paying the first top-up on the checkout link that `phaseo credits add` returns when no card is saved, confirming each saved-card top-up from the emailed link, and account security (password, MFA, passkeys). Create API keys with `phaseo keys create --name <name> --json`; never guess one. Credit top-ups need `phaseo login --scopes billing:write` first. Task map: https://phaseo.app/docs/v1/developers/manage-from-an-agent.md.

# Outputs and retries

> Validate final outputs, retry transient model failures, and apply managed routing defaults.

Use output parsing when the rest of your application needs a typed value instead of free-form text. Add bounded retries for transient model failures, while leaving validation and policy failures visible to your application.

## Parse a typed output

`parseOutput` converts the final text after the agent loop completes:

```typescript theme={null}
const agent = createAgent<string, { summary: string }>({
  id: "summary-agent",
  parseOutput(text) {
    return JSON.parse(text) as { summary: string };
  },
});
```

For stricter model behaviour, combine parsing with a structured response from the gateway client:

```typescript theme={null}
const client = createGatewayAgentClient({
  clientOptions: {
    apiKey: process.env.PHASEO_API_KEY!,
  },
  responseFormat: {
    type: "json_schema",
    name: "agent_answer",
    schema: {
      type: "object",
      properties: {
        summary: { type: "string" },
      },
      required: ["summary"],
      additionalProperties: false,
    },
  },
  plugins: [{ id: "response-healing" }],
});
```

## Retry model requests

Use `modelRetry` when a transient model failure should be retried inside the current run:

```typescript theme={null}
const agent = createAgent({
  id: "support-agent",
  modelRetry: {
    maxRetries: 2,
    backoffMs: 250,
  },
});
```

`maxRetries` counts attempts after the first request. The final attempt count is stored on the step as `modelAttempts`.

## Use managed routing defaults

Use `preset` when routing, prompt, or parameter defaults should remain in the dashboard:

```typescript theme={null}
const agent = createAgent({
  id: "support-triage-agent",
  preset: "support-triage",
});
```

The gateway adapter can also carry `responseFormat`, `plugins`, `gatewayTools`, `toolChoice`, `webSearchOptions`, `providerOptions`, `promptCacheKey`, and `includeMeta`.

## Related guides

* [Change later model turns](https://phaseo.app/docs/v1/sdk-reference/typescript/agent-sdk-dynamic-turns.md)
* [Stop an agent safely](https://phaseo.app/docs/v1/sdk-reference/typescript/agent-sdk-stop-conditions.md)
* [Handle errors](https://phaseo.app/docs/v1/sdk-reference/typescript/agent-sdk-events-and-errors.md)


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