arcrun — AI workflow execution engine (clean history)
Self-hosted 開源:WASM 零件 + recipe + cypher-executor,跑在你自己的 Cloudflare。 此為重建的乾淨歷史起點(移除曾誤 commit 的 GCP SA 金鑰,舊歷史保留在 richblack/arcrun 與本地 backup 分支)。含: - acr init --self-hosted installer(建 KV/R2 + codeload 拉預編譯 wasm + wrangler deploy + seed recipe) - recipe push 把關(資料外流提醒 + 打通檢查) - 19 個正當零件預編譯 wasm(claude_api/km_writer/kbdb_upsert_block 排除:違反 DECISIONS §1) - CLI / cypher-executor / registry / 完整 SDD Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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# daily-digest
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## 解決什麼問題
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資訊焦慮:HN / GitHub trending / 自己筆記每天都看不完。
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每天早上一份 LLM 整理過的精選,3 分鐘看完今天的 signal。
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## 怎麼觸發
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不用,cron 排程每天 00:00 UTC(台灣 08:00)自動跑。
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## 改成你自己的
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- 加 / 減 source:dev.to RSS、Twitter list、Slack、自家 KBDB tag 等
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- 摘要 prompt 改為你的口味(嚴肅 / 幽默 / 簡短)
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- 推送目的可換:email、Notion 加一個 page、KBDB 存歷史
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## 為什麼這 pattern 重要
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**Fan-in** 是 arcrun 的特色:3 條 source 並行 fetch,cypher-executor 自動等全部完成才跑 compose。
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不用寫 promise.all、不用怕 race,宣告式描述「compose 依賴這 3 個」即可。
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## 變體
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- 加 priority:若 KBDB 有 `tag:urgent` 的 note,置頂
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- 接 calendar:把今天 meeting 也塞進摘要
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- 接 weather + 通勤路況(API call 多源)
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## 學到什麼
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- **Fan-in / fan-out**:cypher binding YAML 多條邊指向同一節點就是 fan-in
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- 系統變數:`{{_today}}` / `{{_yesterday}}` / `{{_now}}` 內建可用
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- cron 多步排程:一個 cron 觸發 3 條並行 fetch chain
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- `kbdb_get` 用 `source` 篩特定來源(這裡只收 leo 直接寫的,不收 AI 生成的)
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["cron", "digest", "fan-in", "multi-source", "llm", "telegram", "common-pattern"]
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name: daily_digest
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description: 每天早上聚合多源資料 (KBDB / RSS / GitHub trending) → claude 摘要 → telegram
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flow:
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- "morning_cron >> ON_SUCCESS >> fetch_kbdb_yesterday"
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- "morning_cron >> ON_SUCCESS >> fetch_rss"
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- "morning_cron >> ON_SUCCESS >> fetch_github_trending"
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- "fetch_kbdb_yesterday >> ON_SUCCESS >> compose_digest"
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- "fetch_rss >> ON_SUCCESS >> compose_digest"
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- "fetch_github_trending >> ON_SUCCESS >> compose_digest"
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- "compose_digest >> ON_SUCCESS >> push_digest"
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config:
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morning_cron:
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component: cron
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cron_expr: "0 0 * * *" # UTC 00:00 = 台灣 08:00
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fetch_kbdb_yesterday:
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component: kbdb_get
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api_key: "{{api_key}}"
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type: "note"
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source: "km-writer-direct"
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limit: 50
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fetch_rss:
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component: http_request
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url: "https://hnrss.org/frontpage?count=10"
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method: GET
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fetch_github_trending:
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component: http_request
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url: "https://api.github.com/search/repositories?q=created:>{{_yesterday}}+stars:>500&sort=stars&order=desc&per_page=5"
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method: GET
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headers:
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Accept: "application/vnd.github+json"
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# compose 收三條 fan-in(cypher-executor 自動等三個 source 都完成才跑)
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compose_digest:
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component: claude_api
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timeout_ms: 60000
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_recipe_output_format: text
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prompt: |
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整理 leo 今天的「晨間訊息摘要」。三部分各取重點 5-8 條:
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## 我昨天寫的(KBDB notes)
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{{fetch_kbdb_yesterday.blocks}}
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## Hacker News
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{{fetch_rss.data}}
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## GitHub 熱門新 repo
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{{fetch_github_trending.data}}
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格式:markdown bullets,每條 < 30 字,標明來源。
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push_digest:
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component: telegram
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chat_id: "{{secret.LEO_TELEGRAM_CHAT_ID}}"
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text: |
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☀️ 早安 {{_today}}
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{{compose_digest.data.text}}
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