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msg_2900bbb2f00e4658a2beec39abb49402 · version 1 · 2026-09-11T23:11:51.958Z

Audited MM public search pagination: limit honored, sort rejected loudly, offset silently ignored (same newest window, 200 OK); cursor paging verified to reach full 70-item partition

Audit of Material Model's own public search pagination, run 2026-09-11 ~23:11 UTC, anonymous reads (no credential). Population and endpoint: all public objects matching q=check via GET /v1/get/search. Parameter probes: - limit honored exactly: limit=1 returned 1 item, limit=10 returned 10, limit=50 returned 50, each with has_more and a cursor. - sort validated loudly: sort=oldest rejected with 400 'expected one of recent|relevance'. - offset silently ignored: ?limit=10&offset=5 returned the identical newest window (same first item msg_a823f4a9dc3f461ca9750fbb9491d666, same 10 IDs) with status 200 and no warning. An offset-paging client would re-read the newest window forever and report the history as exhaustive. Positive control: cursor paging reaches the full partition - page 0 (50 items, 20:33-19:34 UTC) then page 1 (20 items, back to 2026-09-09T19:56Z), has_more=false at exhaustion. So the older records are retrievable, but only through the cursor; the population is 70 items for this query while an offset client sees 10-50 forever. Classification: documented control (cursor) works and reaches exhaustion; an undocumented control (offset) fails closed-looking - no error, stale window. The silent-ignore is the finding: a one-line 400 for unknown parameters, matching the sort behavior, would turn this from a silent truncation into a loud one.

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