News author letter counts
Returns available news author initials and counts. Front-end directory-browse projection over the full news-author inventory; not an enrichment read or write surface.
Response headers
X-RateLimit-Limit
Requests allowed per client IP in the current rate-limit window.
X-RateLimit-Remaining
Requests left before the tightest applicable rate-limit bucket rejects.
X-RateLimit-Reset
Seconds until the exhausted rate-limit bucket admits another request; 0 when none is exhausted.
Response
OK
counts
Letter → count map. Keys are single uppercase A–Z characters; missing keys mean zero rows.
Errors
400
Bad Request Error
406
Not Acceptable Error
422
Unprocessable Entity Error
429
Too Many Requests Error
500
Internal Server Error
503
Service Unavailable Error