@sema-agent/core/dist/core/memory-engine/header-hints.js

Stateless, task-oriented AI agent core

const LINE_RE = /^\s*([A-Za-z][A-Za-z0-9_-]*):\s*(.*?)\s*$/;
const ISO_DATE_PREFIX_RE = /^\d{4}-\d{2}-\d{2}(?:$|[T\s])/;
export function isInstructionEntry(fm) {
    if (fm.type === "feedback")
        return true;
    const hints = readV2HeaderHints(fm.extra);
    return hints.pinned !== undefined || hints.triggers !== undefined || hints.appliesWhen !== undefined;
}
export function readV2HeaderHints(extra) {
    const out = {};
    if (extra === undefined)
        return out;
    for (const line of extra) {
        const m = LINE_RE.exec(line);
        if (m === null)
            continue;
        const [, key, value] = m;
        switch (key) {
            case "pinned":
                if (out.pinned === undefined && value === "true")
                    out.pinned = true;
                break;
            case "triggers": {
                if (out.triggers !== undefined)
                    break;
                const items = value
                    .split(",")
                    .map((s) => s.trim())
                    .filter((s) => s !== "");
                if (items.length > 0)
                    out.triggers = items;
                break;
            }
            case "last-confirmed":
                if (out.lastConfirmedAt === undefined && ISO_DATE_PREFIX_RE.test(value))
                    out.lastConfirmedAt = value;
                break;
            case "applies-when":
                if (out.appliesWhen === undefined && value !== "")
                    out.appliesWhen = value;
                break;
            default:
                break;
        }
    }
    return out;
}