DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
The time-based microcompaction system (tengu_time_based_microcompact, tengu_slate_heron) — which cleared old tool results when a time gap was detected — has been completely removed.
Evidence
Removed telemetry event and feature flag (search for "TIME-BASED MC" or "tengu_slate_heron")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
