dsh-compact-after-task

Configuration

Key	Type	Default	Meaning
enabled	boolean	true	Master switch.
thresholdRatio	number (0.05–1)	0.5	Compress when pressure reaches this fraction of the routed model's context window (0.5 = 50%).
onlyRoots	boolean	false	Only compress top-level conversation agents (skip background subagents).

Picking a threshold

Set it from "the max per-turn re-send you can tolerate ÷ the model's context window":

• DeepSeek's default 1M window: 0.3–0.6 is the sweet spot; 0.5 is a conservative default.
• Want each turn to re-send ≤ 400K tokens → 0.4; ≤ 250K → 0.25.
• Don't go ≥ 0.8: the built-in compaction already fires at 0.8 at a step boundary, so a higher threshold here is meaningless.
• Small-window models (128K/64K): raise to 0.6–0.8, or you'll squeeze out useful working context.
• Too low (below ~0.1) means compressing after every small task, and the summary swallows details that were still useful.

Tune by feel after a couple of long tasks: compressing after every little task / summaries getting coarse → raise it; still re-sending hundreds of thousands of tokens per turn → lower it. Edit thresholdRatio in cordis.patch.yml and restart.