File size: 1,742 Bytes
f778c12 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | // Compaction notifier hook sends notifications when session compaction occurs.
import { asFiniteNumber } from "@openclaw/normalization-core/number-coercion";
import type { HookHandler } from "../../hooks.js";
/** Read optional numeric compaction metadata without trusting hook context shape. */
function readOptionalNumber(context: Record<string, unknown>, key: string): number | undefined {
const value = context[key];
return asFiniteNumber(value);
}
/** Session compaction hook that emits short user-visible progress messages. */
const handler: HookHandler = async (event) => {
try {
const context = event.context;
if (event.type === "session" && event.action === "compact:before") {
const messageCount = readOptionalNumber(context, "messageCount");
const messageSuffix =
messageCount !== undefined && messageCount >= 0 ? ` (${messageCount} messages)` : "";
event.messages.push(
`🧹 Compacting context${messageSuffix} so I can continue without losing history…`,
);
return;
}
if (event.type === "session" && event.action === "compact:after") {
const tokensBefore = readOptionalNumber(context, "tokensBefore");
const tokensAfter = readOptionalNumber(context, "tokensAfter");
const tokenDelta =
tokensBefore !== undefined && tokensAfter !== undefined
? ` (${tokensBefore.toLocaleString()} → ${tokensAfter.toLocaleString()} tokens)`
: "";
event.messages.push(`✅ Context compacted${tokenDelta}. Continuing from where I left off.`);
}
} catch (error) {
console.warn(
`[compaction-notifier] failed: ${error instanceof Error ? error.message : String(error)}`,
);
}
};
export default handler;
|