feat: PLANNING体系首版(00路线图/02任务总表/03执行协议/I-03/I-04/registry42口径)+M1止血交付
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"""确定性长上下文语料生成器(dim3 专用)。
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用法:
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python gen_longctx.py # 打印语料(stdout)
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python gen_longctx.py --write # 写入同目录 longctx-corpus.md
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特性:
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- 确定性:同样参数永远生成同样内容(无随机、无时间)
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- 约 50KB:由固定填充段落重复拼接而成
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- 位置锚定:3 处针(needle)分别落于约 6% / 50% / 92% 处
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- 3 处诱饵(decoy)用于抗干扰测试
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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FILLER = (
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"运维知识库条目:例行巡检包含磁盘水位、服务端口存活、日志轮转三项检查,"
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"巡检结果登记到值班表。若发现异常,按照应急预案升级处理,并在复盘文档中记录。"
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"本条为通用条目,不包含具体系统参数。\n"
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)
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NEEDLES = {
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# (目标位置比例, 文本)
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0.06: "【运维备注】内部代号 XN-7742 的灰度发布窗口固定为每周三 02:00–04:00(UTC+8),其余时段禁止对该代号执行发布操作。\n",
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0.50: "【缓存记录】缓存 TTL 演进:初版为 900 秒;2026-03 缓存穿透事故复盘后,下调为 300 秒。\n",
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0.92: "【指标改名】原“北极星指标”经评审更名为 NSM-7,定义保持不变:周活跃答题用户的次日留存率。\n",
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}
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DECOYS = {
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0.15: "【旧报表注】历史报表中出现的 NSM-3 指“七日留存率”,与 NSM-7 无对应关系,勿混用。\n",
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0.20: "【已取消】早期排期表曾计划 XN-7742 于周四 01:00 执行,后因值班人力调整取消,以最新窗口为准。\n",
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0.35: "【CDN 配置】静态资源 CDN TTL 为 86400 秒,属于边缘缓存策略,不受应用层缓存调整影响。\n",
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}
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TARGET_BYTES = 50 * 1024
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def build() -> str:
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total_chars = TARGET_BYTES # 中文按 UTF-8 3 字节,这里以字符近似;约 50KB 量级
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filler_len = len(FILLER)
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n = max(1, total_chars // filler_len)
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parts: list[str] = []
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for i in range(n):
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parts.append(FILLER)
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pos = (i + 1) / n
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for ratio, text in {**NEEDLES, **DECOYS}.items():
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if pos >= ratio and not any(t in "".join(parts) for t in [text]):
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parts.append(text)
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return "".join(parts)
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def main() -> None:
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corpus = build()
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if "--write" in sys.argv:
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out = Path(__file__).with_name("longctx-corpus.md")
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out.write_text(corpus, encoding="utf-8")
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print(f"written: {out} ({len(corpus.encode('utf-8'))} bytes)")
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else:
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sys.stdout.write(corpus)
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if __name__ == "__main__":
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main()
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