Block a user
Prefix cache reuse plateaus mid-session — deep agentic turns re-prefill ~23k tokens every turn
Fixed and verified live.
budget_mb = 2048 on beast (4102cbe2, corrected from an initial 3072
in 9c1dfc1f — see below). Measured on the running host today:
prompt_tokens=28794 …
grenade
created branch fix/295-ignore-tiny-prefill-samples in helexa/helexa
2026-08-27 07:45:26 +00:00
Document preserve_thinking for operators, and audit the ~31 other undocumented neuron toggles
Done in 00acd283. 0 of 35 keys undocumented, from 17.
What landed
Written as guidance rather than a generated reference. Each lever states what it controls, the default *and why that…
Reasoning blocks repeat themselves: the repetition penalty sees a 64-token window inside a 28k think block
Survey of the recorded sessions
Measured across every ~/.pi/agent/sessions/**/*.jsonl on the operator
box: 14 sessions, 42 substantial thinking blocks, ~1.1M characters of
reasoning,…
grenade
created branch fix/300-anthropic-streaming-thinking in helexa/helexa
2026-08-27 06:43:40 +00:00
grenade
created branch fix/300-return-the-models-reasoning in helexa/helexa
2026-08-27 05:46:42 +00:00
Three of five API surfaces silently discard the model's reasoning