Engineering notes on the Starchild agent platform — architecture, systems, and design decisionsStarchild Agent 平台工程档案——架构、子系统与设计决策
A self-maintaining layered knowledge system: Rules / Wiki / Raw three-tier storage, write gating, weekly lint, and daily distillation forming a fully automated knowledge loop.自维护的分层知识系统：Rules / Wiki / Raw 三层存储，写入门控、每周 lint、每日蒸馏，构成全自动知识闭环。
Read →阅读 → SystemThree-tier capability discovery: local platform tools & installed skills → community skills & x402 marketplace → web search. Pre-install interception, upgrade chains, and soft recommendation.三层能力发现：本地平台工具与已装 skills → 社区 skills 与 x402 marketplace → Web 搜索。装前拦截、空结果升级链与软性推荐。
Read →阅读 → SystemThree escalating triggers (0.50 hygiene / 0.78 summarize / 0.92 hard), newest-first token-budget retention that truncates instead of dropping, and the validation guards that stop a bad summary from silently erasing history.三级递进触发（0.50 清理 / 0.78 摘要 / 0.92 强制）、最近优先的 token 预算保留（截断而非丢弃），以及防止坏摘要静默抹掉历史的校验守卫。
Read →阅读 → SystemA lightweight classifier picks the model per turn from an editable Markdown rules file — structure-over-surface judgement, tier-snap guards, and lane inheritance for terse follow-ups.轻量级分类器依据可编辑的 Markdown 规则文件为每轮选模型——看结构不看表面的判据、层级吸附守卫，以及简短追问的车道继承。
Read →阅读 → PlatformOne persistent agent per user — a real machine with a surviving workspace, credential injection via sc-proxy, deferred tool loading for cache discipline, and one identity across web and messaging channels.每个用户一个持久 agent——真实的机器：可持久化的 workspace、sc-proxy 凭证注入、为缓存纪律设计的延迟工具加载，以及横跨 Web 与消息渠道的同一身份。
Read →阅读 → PlatformProcedural memory as versioned markdown: three-tier discovery, patch-in-place lifecycle, community registry with PR-based governance — few comprehensive domain skills over many narrow ones.以版本化 Markdown 承载的程序性记忆：三层发现、就地修补的生命周期、基于 PR 治理的社区仓库——少而全的领域 skill 优于多而窄。
Read →阅读 → SystemA cost architecture inside a single turn: the main model plans, cheap executors run contract-first delegations, and a stronger advisor consults or independently verifies finished work.单轮之内的成本架构：主模型规划，便宜的 executor 执行契约先行的委派，更强的 advisor 提供咨询或对成品做独立裁决。
Read →阅读 → SystemScheduled tasks in two execution modes with mandatory cost estimates, the promise rule for background work, scripted delivery chains, and three-surface observability for credit drain.两种执行模式的定时任务与强制成本预估、后台工作的“承诺规则”、脚本化交付链，以及排查 credit 消耗的三面可观测性。
Read →阅读 → Platform2,100+ services agents sell and buy per call in USDC over the open x402 protocol — one-command monetization, fail-closed autonomous payments, and indexing of the Coinbase CDP / Bazaar ecosystem.2,100+ 服务，agent 之间通过开放的 x402 协议按次以 USDC 买卖——一条命令变现、失败关闭的自主支付，并索引 Coinbase CDP / Bazaar 生态。
Read →阅读 →