cookbook/environments/_07_difficulty_calibration/TEST_LOG.md
Tested 2026-07-20 against gpt-5.5 through OpenAIResponses, Agno 2.7.4.
Status: PASS
Description: Progressive arithmetic difficulty ladder with binary exact-answer scoring.
Result: one-step and three-step each passed 4/4 (1.00). Both
edge-a and edge-b passed 2/4 (0.50), producing a clear transition from
saturation to the learning zone.
Status: PASS
Description: Chained product, digit-sum, multiplication, and modulo verification.
Result: product-only passed 4/4 (1.00), full-chain-a 3/4 (0.75),
and full-chain-b 4/4 (1.00). Adding all four stages moved one row into the
middle band while the product-only anchor stayed saturated.
Status: PASS
Description: Natural-language arithmetic whose grouping becomes increasingly ambiguous.
Result: comma-scope, modifier-scope, and nested-scope each passed
6/6 (1.00). coordination-scope passed 2/6 (0.33), showing that ambiguity in
ordinary prose can expose a boundary without larger operands.