/, else the whole document. */\nfunction mainContent(html: string): string {\n for (const t of [\"article\", \"main\"]) {\n const blocks = [...html.matchAll(new RegExp(`<${t}\\\\b[^>]*>([\\\\s\\\\S]*?)`, \"gi\"))]\n .map((m) => m[1])\n .sort((a, b) => b.length - a.length);\n if (blocks[0] && blocks[0].length > 500) return blocks[0];\n }\n return html.match(/]*>([\\s\\S]*?)<\\/body>/i)?.[1] ?? html;\n}\n\nexport async function fetchArticleText(url: string, maxChars: number): Promise {\n try {\n const res = await fetch(url, {\n headers: { \"user-agent\": USER_AGENT, accept: \"text/html,application/xhtml+xml\" },\n redirect: \"follow\",\n signal: AbortSignal.timeout(FETCH_TIMEOUT_MS),\n });\n if (!res.ok) return null;\n\n const type = res.headers.get(\"content-type\") ?? \"\";\n if (!/text\\/html|application\\/xhtml/i.test(type)) {\n await res.body?.cancel();\n return null;\n }\n const length = Number(res.headers.get(\"content-length\"));\n if (Number.isFinite(length) && length > MAX_BYTES) {\n await res.body?.cancel();\n return null;\n }\n\n const html = (await res.text()).slice(0, MAX_BYTES);\n const text = htmlToText(mainContent(html.replace(BOILERPLATE, \" \")));\n\n // Too short to be a real article — cookie wall, JS-only page, paywall stub\n if (text.length < 400) return null;\n return text.slice(0, maxChars);\n } catch {\n return null;\n }\n}\n",[205],"a350918c-374a-4f7f-a47a-1fabc729853b",["D",1787864518418],[29],"3f53f5b0-1ef1-4357-a282-8bf1ccc1a9c1","README.md","6dfc4c34-a257-11f1-9a7b-1607ee4eb77e",33,["D",1787864073244],"# hn-digest\n\nA daily email of the **top 5** Hacker News front-page stories, each with a summary of the\nlinked page and a summary of what the top comments are arguing about.\n\nSource is the official [HN Firebase API](https://github.com/HackerNews/API) — keyless and\nunauthenticated. Two cron jobs:\n\n| File | Schedule | Job |\n| --- | --- | --- |\n| `collect.ts` | hourly, `:07` | Record what's on the front page |\n| `main.ts` | `07:00 UTC` | Pick the top 5 and email them |\n\n## Why two jobs\n\n`topstories.json` is a live snapshot, so a single daily poll would miss anything that\npeaked overnight and fell off. The collector records every front-page story hourly into\n`hn-digest:pool`, keeping high-water marks for score and comment count. The digest then\npicks the highest **peak** score of the past 36 hours — a genuine top-of-day, not\nwhatever happened to be up at 07:00.\n\n## How the digest run works\n\n1. `pick()` takes the 5 highest-peak-score pool entries not already emailed.\n2. Each story is refetched for its live score and its `kids` list. **`kids` is in HN's own\n rank order** — comments carry no score in the API, so this is the only signal for \"top\n comment\". Algolia's `children` is chronological and `hnrss.org/item?id=` is\n reverse-chronological, so neither can rank.\n3. `article.ts` fetches the linked page and extracts text. Failures (paywalls, JS-only\n pages, video, PDFs) leave the summary leaning on the comments, and it says so. Ask/Show\n HN self-posts use the post body instead.\n4. `summarize.ts` makes one Claude call per story with the article text and 15 top-level\n comments. No comments means no discussion section rather than an invented one.\n5. `render.ts` builds the HTML + plain-text email, sent via `std/email`.\n6. The seen-set is written **after** the send succeeds, and only for stories that made it\n into the email. Anything that failed is retried on the next run. A blob read failure\n aborts the run rather than re-sending everything.\n\n## Env vars\n\n| Key | Required | Purpose |\n| --- | --- | --- |\n| `ANTHROPIC_API_KEY` | yes | Claude API |\n| `DIGEST_TO` | no | Recipient. Defaults to the val owner's address. |\n| `DIGEST_DRY_RUN` | no | `1` logs the email instead of sending it. |\n\n## Cost\n\nFive Claude calls a day on `claude-haiku-4-5` — pennies a month. Raise `MODEL` in\n`summarize.ts` to `claude-sonnet-5` if the discussion summaries read generic (note\nSonnet/Opus also accept `output_config: { effort: \"low\" }`, which Haiku rejects).\n\nThe collector makes ~31 HN API calls an hour; the digest makes ~5 × 31. All free.\n\n## Tuning\n\nKnobs at the top of `main.ts`: `DIGEST_SIZE`, `MIN_SCORE`, `MAX_AGE_HOURS`,\n`COMMENTS_PER_STORY`, `ARTICLE_MAX_CHARS`. `WATCH_TOP` and `POOL_TTL_DAYS` are in\n`collect.ts`. Prompt and tone live in `SYSTEM` in `summarize.ts`.\n",[216],"pulls","branches","forks","envVars",{"_229":164,"_231":62},"connections",{"_229":62,"_230":62},"count","unfilledCount","emptyCount",{"_44":215,"_33":216,"_31":217,"_144":-5,"_42":43,"_41":218,"_146":27,"_39":274,"_13":209,"_34":20,"_36":220,"_24":27,"_149":-5,"_244":275,"_28":276},{"_44":212,"_33":29,"_31":32,"_144":-5,"_42":43,"_41":14,"_146":27,"_39":271,"_13":164,"_34":35,"_36":38,"_24":27,"_149":-5,"_244":272,"_28":273},{"_44":204,"_33":205,"_31":206,"_144":-5,"_42":43,"_41":207,"_146":25,"_39":268,"_13":209,"_34":35,"_36":210,"_24":27,"_149":-5,"_244":269,"_28":270},{"_44":197,"_33":198,"_31":199,"_144":-5,"_42":43,"_41":200,"_146":25,"_39":265,"_13":62,"_34":180,"_36":202,"_24":27,"_149":-5,"_244":266,"_28":267},{"_44":190,"_33":191,"_31":192,"_144":-5,"_42":43,"_41":193,"_146":27,"_39":262,"_13":62,"_34":35,"_36":195,"_24":27,"_149":-5,"_244":263,"_28":264},{"_44":183,"_33":184,"_31":185,"_144":-5,"_42":43,"_41":186,"_146":25,"_39":259,"_13":62,"_34":35,"_36":188,"_24":27,"_149":-5,"_244":260,"_28":261},{"_44":174,"_33":175,"_31":176,"_144":-5,"_42":43,"_41":177,"_146":27,"_39":256,"_13":179,"_34":180,"_36":181,"_24":27,"_149":-5,"_244":257,"_28":258},{"_44":167,"_33":168,"_31":169,"_144":-5,"_42":43,"_41":170,"_146":27,"_39":253,"_13":164,"_34":35,"_36":172,"_24":27,"_149":-5,"_244":254,"_28":255},{"_44":159,"_33":160,"_31":161,"_144":-5,"_42":43,"_41":162,"_146":25,"_39":250,"_13":164,"_34":35,"_36":165,"_24":27,"_149":-5,"_244":251,"_28":252},{"_44":151,"_33":152,"_31":153,"_144":-5,"_42":43,"_41":154,"_146":27,"_39":247,"_13":156,"_34":35,"_36":157,"_24":27,"_149":-5,"_244":248,"_28":249},{"_44":141,"_33":142,"_31":143,"_144":-5,"_42":43,"_41":145,"_146":25,"_39":243,"_13":62,"_34":35,"_36":148,"_24":27,"_149":-5,"_244":245,"_28":246},["D",1787863854757],"children",[],[142],["D",1787864511456],[],[152],["D",1787863898404],[],[160],["D",1787863967414],[],[168],["D",1787864079016],[],[175],["D",1787863849452],[],[184],["D",1787863871808],[],[191],["D",1787863922615],[],[198],["D",1787863924903],[],[205],["D",1787864518418],[],[29],["D",1787864073244],[],[216],["D",1787862662938],["D",1789545036283],{"_99":98,"_107":103},{"_99":98,"_100":101,"_102":103,"_18":56,"_104":105,"_106":27},{"_13":88,"_33":89,"_44":43,"_90":45,"_91":-5,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":46,"_97":98},"ctx",{"_81":-5,"_127":315,"_316":317,"_318":319,"_320":27,"_321":27,"_322":27,"_323":25,"_324":-5,"_325":-7,"_326":-7,"_327":62,"_328":27,"_329":27,"_330":-5,"_331":27,"_332":27,"_333":27,"_334":-5},"ENV",{"_286":287,"_288":289,"_290":89,"_291":292,"_293":294,"_295":296,"_297":298,"_299":300,"_301":302,"_303":304,"_305":306,"_307":308,"_309":310,"_311":312,"_313":314},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

`,\n `${esc(s.title)}

Diff · v39