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feat: add cache-ttl pruning mode

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This commit is contained in:
Peter Steinberger
2026-01-21 19:44:20 +00:00
parent c415ccaed5
commit 9f59ff325b
18 changed files with 164 additions and 123 deletions
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28
src/agents/pi-extensions/context-pruning/pruner.ts
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@@ -211,34 +211,6 @@ export function pruneContextMessages(params: {
const isToolPrunable = params.isToolPrunable ?? makeToolPrunablePredicate(settings.tools);
if (settings.mode === "aggressive") {
let next: AgentMessage[] | null = null;
for (let i = pruneStartIndex; i < cutoffIndex; i++) {
const msg = messages[i];
if (!msg || msg.role !== "toolResult") continue;
if (!isToolPrunable(msg.toolName)) continue;
if (hasImageBlocks(msg.content)) {
continue;
}
const alreadyCleared =
msg.content.length === 1 &&
msg.content[0]?.type === "text" &&
msg.content[0].text === settings.hardClear.placeholder;
if (alreadyCleared) continue;
const cleared: ToolResultMessage = {
...msg,
content: [asText(settings.hardClear.placeholder)],
};
if (!next) next = messages.slice();
next[i] = cleared as unknown as AgentMessage;
}
return next ?? messages;
}
const totalCharsBefore = estimateContextChars(messages);
let totalChars = totalCharsBefore;
let ratio = totalChars / charWindow;