Interface PressureThresholds

KV pressure thresholds controlling agent shutdown under context exhaustion

Two thresholds govern what happens as remaining KV shrinks:

softLimit (default 1024) — remaining KV floor for new work. Enforced at three points:

• SETTLE: tool results that would cross this floor are rejected and the agent is marked done. This is the primary enforcement point — tool results (search results, etc.) are the largest KV consumers.
• PRODUCE (stop-token boundary): agents that want a non-terminal tool call are hard-cut. Terminal tools (e.g. report()) still pass.
• INIT prefill: agents that don't fit above this floor are dropped.

Set to account for downstream pool needs (reporters, verification).

hardLimit (default 128) — crash-prevention floor. When remaining drops below this, agents are killed immediately before produceSync(). Prevents llama_decode "no memory slot" failures. Pure safety net — should never be the primary budget control.