Let a text question bound the length of its answer

• Status: Todo
• Kind: Feature
• Authors: jp
• Date: 2026-09-25
• Label: domain=llm
• Label: package=jp_cli
• Label: package=jp_mcp
• Label: package=jp_tool
• Label: type=follow-up

A text Question only says its answer is a string, so the schema an assistant-targeted inquiry is asked with (create_inquiry_schema in jp_cli) is {"answer": {"type": "string"}}. Any string passes it.

ticket_create asks shorter_title of the assistant, and needs an answer of at most 60 characters (options.max_title_length). In a manual run (PR #1175), the inquiry model answered with a 213-character report in the right shape, and the tool could only refuse it after the fact.

Let a text question carry a maximum length, e.g. Question::text(...).with_max_chars(60), and carry it through:

• create_inquiry_schema emits maxLength for the answer property.
• InputRequest::schema() includes it, so the JP MCP Server's answer check (ask_for_input, which already validates against that schema) refuses an overlong answer before the tool sees it.
• A user prompt can show the limit, or refuse to submit past it.

Open: whether Anthropic's (and other providers') structured output enforces maxLength during generation or only describes it. Check before relying on it for anything beyond the refusal.

Overlaps draft D13 (schema answer types).