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yangwhaleyangwhale/CloseCrab/skills/memory-gc/SKILL.md

memory-gc

Skill5 starsChanged 3 months agoApache-2.0View on GitHub

记忆系统自动 GC — audit 当前 MEMORY.md / shared/ / disk memory 文件健康度。**Pressure-driven 不是 time-driven** — 没积累就不该清, cold ≠ garbage, 没新东西不要找事清。当用户说「memory audit」「记忆 GC」「记忆清理」「sleep gc」「/memory gc」「/memory audit」「check memory health」时触发。

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SKILL.md

Memory GC — 记忆系统自动体检

核心哲学: GC 按 pressure 触发, 不是按 time 触发. 类比 Chrome 的 mark-and-sweep — 不是 timer 触发, 是 heap 压力到阈值才触发. 没积累就不该清, cold ≠ garbage.

何时触发

  • 用户说「memory audit」「记忆体检」「记忆清理」「sleep gc」
  • weekly cron 7 0 * * 1 UTC (= 周一 8:07 HKT) — 一周一次, 给积累有时间发酵
  • 任何 session 觉得「MEMORY.md 长了/重了」想做一次清理时

默认模式: --action-only (cron 用这个)

只显示 🚨 ACTIONABLE 段 (dead/dup/stale). 如果 actionable=0 → 直接 silent 输出 "🟢 健康无需 cleanup", 不展开 cold links 列表防止形成清理冲动.

# cron / 每日 check 用这个 (默认 silent if healthy)
python3 ~/CloseCrab/scripts/memory-audit.py --action-only

# 完整 3 段报告 (按需展开看 cold/orphan, 比如周末手工审)
python3 ~/CloseCrab/scripts/memory-audit.py

# JSON / 调窗口
python3 ~/CloseCrab/scripts/memory-audit.py --json
python3 ~/CloseCrab/scripts/memory-audit.py --cold-days 30
python3 ~/CloseCrab/scripts/memory-audit.py --stale-days 14

3 类信号 (按风险分级)

类别信号处理
🚨 ACTIONABLE (必清, 无风险)stale_timestamp / duplicates / dead_index看到立刻清, 任何 session 都可干
👀 NEEDS REVIEW (case-by-case)orphans (disk 有 MEMORY 没)看 head + mtime, active 补索引 / 废弃 rm disk
ℹ️ INFO ONLY (绝不强清)cold_links (近 N 天 0 Read)cold ≠ garbage. 只 user 主动 ask 才看. 平时 cron 报告默认不展开. R5 实证 cold shared/ 改触发关键词后命中率 17%→83%, 不是该删.

R5 教训 (不要瞎删)

cold ≠ stale。R5 验证 cold shared/ 文件改触发关键词后命中率从 17%→83%。100 个冷 feedback link 里大部分是「平时不 trigger 但一旦 trigger 就救命」的深度知识。只删有明确证据过期的：

  • 闭环项目接续指针（已 supersede）
  • 重复索引（同 slug 多次）
  • 死索引（文件已删）
  • 命名违规的孤儿（日期文件名等）

执行清理时的工作流

  1. 跑 audit → 拿 markdown 报告
  2. 按信号优先级处理：
    • stale_timestamp → 直接 demote/删 (Edit MEMORY.md)
    • duplicates → 合并到 1 个 + 删另一个 (Edit)
    • dead_index → 删 link (Edit) 或恢复 disk file
    • orphans → 看 mtime + head 文件判断 active/废弃, active 补索引, 废弃 rm disk file
    • cold_links → 不要批量清，逐个看是否真过期
  3. 改完再跑一次 audit 看是否归零
  4. sponge memory 记录这次清掉了什么 + 为什么

参考

  • 完整 GC 设计哲学: [[feedback-memory-system-overfit-r1-r5]]
  • 重要纠错: [[feedback-memory-gc-pressure-not-time]] — Chris 2026-05-21 反思: daily cron 会形成"每天必清"冲动, 没新东西时清的就是稳定记忆. 改 weekly + action-only + cold ≠ garbage
  • weekly cron: job_id e642aac85244, target=jarvis, cron="7 0 * * 1 UTC" (= 周一 8:07 HKT)

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