Render at most max_details detail lines, clamped to 0..100, followed by a truncation marker when information is omitted. Branch expansion stops at depth eight. Each line is limited to 160 graphemes; quoted paths/messages escape line breaks and control characters. The full input error remains unchanged. These limits bound presentation, not validation or the size of its error tree. Categories and wording may evolve before 1.0; match structured categories rather than parsing summary text. Application-authored messages are not redacted.

Serialize the complete diagnostic tree as admitted JSON. Branch and requirement indices are zero-based. No submitted JSON values are included. Application requirement descriptions and violation messages are included verbatim; those strings may themselves contain sensitive information supplied by the application. Non-scalar diagnostic strings return an admission error.