$\"\"$ <Broken> & Feed
Site · Feedbin subscription
Latest published: August 1, 2026 (30d ago)
Usually publishes every 3 days

';\n\n assertEquals(html, expected);\n});\n\nDeno.test(\"buildEmailHtml renders a NEW badge for feeds not in the previous report\", () => {\n const feeds: FlaggedFeed[] = [\n {\n feedId: 2,\n title: \"Fresh Feed\",\n latestPublishedDate: \"August 1, 2026\",\n latestPublishedRelative: \"10d\",\n publishFrequency: \"2 days\",\n meanIntervalDays: 2,\n currentGapDays: 10,\n thresholdDays: 2,\n ratio: 5,\n isNew: true,\n },\n {\n feedId: 3,\n title: \"Returning Feed\",\n latestPublishedDate: \"July 1, 2026\",\n latestPublishedRelative: \"40d\",\n publishFrequency: \"4 days\",\n meanIntervalDays: 4,\n currentGapDays: 40,\n thresholdDays: 4,\n ratio: 10,\n },\n ];\n\n const html = buildEmailHtml(feeds);\n\n assertStringIncludes(html, \"Fresh Feed NEW\");\n assertStringIncludes(html, \"Returning Feed
\");\n});\n",[152],"25f72d59-1688-4a55-a541-489aea0c0d94","feedbin-broken-feeds.cron.tsx","368580ac-7bc1-11f1-8d5b-1607ee4eb77e",272,["D",1788637027743],48,"interval","const THRESHOLD_MULTIPLIER = 4;\nconst PREVIOUS_FEED_IDS_BLOB_KEY = \"previous-report:flagged-feed-ids\";\n\nimport { blob } from \"https://esm.town/v/std/blob/main.ts\";\nimport { email } from \"https://esm.town/v/std/email\";\nimport { escape } from \"jsr:@std/html@1.0.5/entities\";\nimport {\n ENTRY_SAMPLE_SIZE, getFeedEntries, getSubscriptions, pruneCache,\n type FeedbinEntry,\n} from \"./feedbin.ts\";\nimport {\n daysFromMs,\n formatDuration,\n formatHumanDate,\n} from \"./formatting.ts\";\n\nexport type FlaggedFeed = {\n feedId: number;\n title: string;\n sitelink?: string;\n feedLink?: string;\n faviconUrl?: string;\n latestPublishedDate: string;\n latestPublishedRelative: string;\n publishFrequency: string;\n meanIntervalDays: number;\n currentGapDays: number;\n thresholdDays: number;\n ratio: number;\n isNew?: boolean;\n};\n\nexport function parseEntryTimestampMs(entry: FeedbinEntry): number | null {\n const candidate = entry.published ?? entry.created_at;\n if (!candidate) {\n return null;\n }\n\n const ms = Date.parse(candidate);\n return Number.isFinite(ms) ? ms : null;\n}\n\nexport function mean(values: number[]): number {\n if (values.length === 0) {\n return 0;\n }\n\n return values.reduce((sum, value) => sum + value, 0) / values.length;\n}\n\nexport function getFaviconUrl(siteUrl?: string): string | undefined {\n if (!siteUrl) {\n return undefined;\n }\n\n try {\n const hostname = new URL(siteUrl).hostname;\n return `https://www.google.com/s2/favicons?sz=16&domain_url=${hostname}`;\n } catch {\n return undefined;\n }\n}\n\nexport function buildEmailHtml(flaggedFeeds: FlaggedFeed[]): string {\n if (flaggedFeeds.length === 0) {\n return \"

No potentially broken feeds detected.

\";\n }\n\n const items = flaggedFeeds.map((feed) => {\n const faviconImg = feed.faviconUrl\n ? ` $\"\"$ `\n : \"\";\n const titleHtml = `${faviconImg}${escape(feed.title)}`;\n const newBadge = feed.isNew\n ? ` NEW`\n : \"\";\n const lines: string[] = [\n `${feed.feedLink ? `${titleHtml}` : titleHtml}${newBadge}`,\n ];\n\n const links: string[] = [];\n if (feed.sitelink) {\n links.push(`Site`);\n }\n if (feed.feedLink) {\n const subscriptionsUrl = `https://feedbin.com/settings/subscriptions?q=${encodeURIComponent(feed.feedLink)}`;\n links.push(`Feedbin subscription`);\n }\n if (links.length > 0) {\n lines.push(links.join(\" · \"));\n }\n\n lines.push(\n `Latest published: ${feed.latestPublishedDate} (${feed.latestPublishedRelative} ago)`,\n );\n lines.push(`Usually publishes every ${feed.publishFrequency}`);\n\n return `

${lines.join(\"
\")}

`;\n });\n\n return `

${items.join(\"\")}`;\n}\n\nexport default async function (sendEmail = true) {\n const startedAt = new Date();\n const nowMs = Date.now();\n\n const subscriptions = await getSubscriptions();\n\n const flaggedFeeds: FlaggedFeed[] = [];\n const skipReasons: string[] = [];\n\n let i = 0\n for (const subscription of subscriptions) {\n i++\n console.log(`Checking feed ${subscription.feed_id} (${subscription.title}) ${i}/${subscriptions.length}...`);\n try {\n const entries = await getFeedEntries(\n subscription.feed_id,\n ENTRY_SAMPLE_SIZE,\n );\n\n const timestamps = entries\n .map(parseEntryTimestampMs)\n .filter((ts): ts is number => ts !== null)\n .sort((a, b) => b - a);\n\n if (timestamps.length < 2) {\n skipReasons.push(`${subscription.feed_id} (${subscription.title}):insufficient_entries`);\n continue;\n }\n\n const latestPublishedMs = timestamps[0];\n const intervalsMs: number[] = [];\n\n for (let i = 0; i < timestamps.length - 1; i += 1) {\n const interval = timestamps[i] - timestamps[i + 1];\n if (interval > 0) {\n intervalsMs.push(interval);\n }\n }\n\n if (intervalsMs.length === 0) {\n skipReasons.push(`${subscription.feed_id} (${subscription.title}):non_positive_intervals`);\n continue;\n }\n\n const meanIntervalMs = mean(intervalsMs);\n if (meanIntervalMs <= 0) {\n skipReasons.push(`${subscription.feed_id} (${subscription.title}):invalid_mean_interval`);\n continue;\n }\n\n const currentGapMs = nowMs - latestPublishedMs;\n const thresholdMs = meanIntervalMs * THRESHOLD_MULTIPLIER;\n\n if (currentGapMs > thresholdMs) {\n const title = subscription.title?.trim() || `Feed ${subscription.feed_id}`;\n flaggedFeeds.push({\n feedId: subscription.feed_id,\n title,\n sitelink: subscription.site_url ?? undefined,\n feedLink: subscription.feed_url ?? undefined,\n faviconUrl: getFaviconUrl(subscription.site_url ?? undefined),\n latestPublishedDate: formatHumanDate(latestPublishedMs),\n latestPublishedRelative: formatDuration(currentGapMs, true),\n publishFrequency: formatDuration(meanIntervalMs, false),\n meanIntervalDays: daysFromMs(meanIntervalMs),\n currentGapDays: daysFromMs(currentGapMs),\n thresholdDays: daysFromMs(thresholdMs),\n ratio: currentGapMs / meanIntervalMs,\n });\n }\n } catch (error) {\n const message = error instanceof Error ? error.message : String(error);\n skipReasons.push(`${subscription.feed_id} (${subscription.title}):fetch_or_parse_error:${message}`);\n }\n }\n\n await pruneCache();\n\n flaggedFeeds.sort((a, b) => a.ratio - b.ratio);\n\n const previousFeedIds = new Set(\n await blob.getJSON(PREVIOUS_FEED_IDS_BLOB_KEY) ?? [],\n );\n for (const feed of flaggedFeeds) {\n feed.isNew = !previousFeedIds.has(feed.feedId);\n }\n await blob.setJSON(\n PREVIOUS_FEED_IDS_BLOB_KEY,\n flaggedFeeds.map((feed) => feed.feedId),\n );\n const newFeedCount = flaggedFeeds.filter((feed) => feed.isNew).length;\n\n console.log(\"Feedbin Potentially Broken Feed Check\");\n console.log(`Run timestamp: ${startedAt.toISOString()}`);\n console.log(`Subscriptions checked: ${subscriptions.length}`);\n console.log(`Potentially broken feeds: ${flaggedFeeds.length}`);\n console.log(`New since previous report: ${newFeedCount}`);\n console.log(`Skipped subscriptions: ${skipReasons.length}`);\n console.log(\"\");\n\n if (flaggedFeeds.length === 0) {\n console.log(\"No potentially broken feeds detected.\");\n } else {\n console.log(\"Potentially broken feeds:\");\n for (const [index, feed] of flaggedFeeds.entries()) {\n console.log(`${index + 1}. ${feed.title}${feed.isNew ? \" [NEW]\" : \"\"}`);\n if (feed.sitelink) {\n console.log(` Site: ${feed.sitelink}`);\n }\n if (feed.feedLink) {\n console.log(` Feed: ${feed.feedLink}`);\n console.log(\n ` Feedbin subscriptions: https://feedbin.com/settings/subscriptions?q=${encodeURIComponent(feed.feedLink)}`,\n );\n }\n console.log(\n ` Latest published: ${feed.latestPublishedDate} (${feed.latestPublishedRelative} ago)`,\n );\n console.log(` Usually publishes every ${feed.publishFrequency}`);\n console.log(\n ` Gap: ${feed.currentGapDays.toFixed(2)}d | Mean interval: ${feed.meanIntervalDays.toFixed(2)}d | Threshold (x${THRESHOLD_MULTIPLIER}): ${feed.thresholdDays.toFixed(2)}d`,\n );\n }\n }\n\n if (skipReasons.length > 0) {\n console.log(\"\");\n console.log(\"Skipped details:\");\n for (const reason of skipReasons) {\n console.log(`- ${reason}`);\n }\n }\n\n if (sendEmail) {\n await email({\n subject: `Feedbin Broken Feed Check (${flaggedFeeds.length})`,\n html: buildEmailHtml(flaggedFeeds),\n });\n }\n}\n",[160],"0df3a35a-b7de-4c38-aa5f-b8b286932a4d","deno.lock","fe5043e4-7d31-11f1-baff-1607ee4eb77e",24,["D",1783778909848],"{\n \"version\": \"5\",\n \"specifiers\": {\n \"jsr:@std/dotenv@*\": \"0.225.6\"\n },\n \"jsr\": {\n \"@std/dotenv@0.225.6\": {\n \"integrity\": \"1d6f9db72f565bd26790fa034c26e45ecb260b5245417be76c2279e5734c421b\"\n }\n }\n}\n",[169],"fe716459-bd76-4448-a7de-bcac54c52362","deno.json","3651a52a-7bc1-11f1-a542-1607ee4eb77e",250,["D",1788625553368],40,"{\n \"$schema\": \"https://raw.githubusercontent.com/denoland/deno/98f62cee78e85bfc47c62ed703777c6bc8794f1c/cli/schemas/config-file.v1.json\",\n \"lock\": false,\n \"tasks\": {\n \"check\": \"deno check --allow-import=www.val.town,jsr.io,esm.town\",\n \"test\": \"deno test --allow-import='www.val.town,jsr.io,esm.town'\"\n },\n \"compilerOptions\": {\n \"noImplicitAny\": false,\n \"strict\": true,\n \"types\": [\n \"https://www.val.town/types/valtown.d.ts\"\n ],\n \"lib\": [\n \"dom\",\n \"dom.iterable\",\n \"dom.asynciterable\",\n \"deno.ns\",\n \"deno.unstable\"\n ]\n },\n \"lint\": {\n \"include\": [\n \"deno:/https/esm.town/**/*\"\n ],\n \"rules\": {\n \"exclude\": [\n \"no-explicit-any\"\n ]\n }\n },\n \"node_modules_dir\": false,\n \"experimental\": {\n \"unstable-node-globals\": true,\n \"unstable-temporal\": true,\n \"unstable-worker-options\": true,\n \"unstable-sloppy-imports\": true\n }\n}",[176],"7e83d4c1-9548-497e-bd0f-2845273dfd25","README.md","36460c6a-7bc1-11f1-bff7-1607ee4eb77e",["D",1789136757315],13,"# feedbin-feed-checker\nChecks for broken feeds in Feedbin by checking if the time since last publish is unusually long. Sends email to user listing any potentially broken feeds. Runs via a [cron trigger](https://docs.val.town/vals/cron) on val.town.\n\n## Tasks\n- `deno task check` - Check code for errors.\n- `deno task test` - Run the test suite.\n\n## Enhancements\n- [x] show badge for newly stale feeds\n- [x] cache feedbin api requests\n- [ ] calculate entry intervals using whole days\n- [ ] support ignored feeds\n\n🤖 Built w/ help from AI",[184],"4ccdf7ed-cf95-4029-bcf9-cd141e15fac9","AGENTS.md","364c63e4-7bc1-11f1-a71a-1607ee4eb77e",247,["D",1788625553301],8,"- Use `deno task check` to check the code for errors.\n- Use `deno task test` to run the project's test suite.\n- Use the above tasks instead of running `deno` commands directly (e.g. `deno test`) since the tasks already include the necessary permission flags.\n- If a deno task fails with a permissions error ask the user to update the permission flags in the `deno.json` file.\n- Keep validation focused on the project’s configured commands unless a more specific debug command is required.\n- Prefer small, targeted changes and verify them with the task commands above before concluding work.",[191],"590955ce-9ed6-459e-8e82-a343ed78ea5e",".vtignore","366ec36c-7bc1-11f1-b757-1607ee4eb77e",["D",1783620519645],".git\n.vscode\n.cursorrules\n.DS_Store\nnode_modules\nvendor",[199],"a4c41bdd-96f1-48eb-8111-faf3923dd9cf",".gitignore","3669ab34-7bc1-11f1-802c-1607ee4eb77e",4,["D",1783620519452],".env\n.vt\n",[205],"85056a9a-2358-4054-8b93-e37c1a0b4fcf",".github","7e3b6172-a241-11f1-8258-1607ee4eb77e",88,["D",1787853759938],"directory",[212],"pulls","branches",1,"forks","envVars",{"_226":127,"_228":40},"connections",{"_226":40,"_227":40},"count","unfilledCount","emptyCount",{"_18":211,"_20":212,"_118":213,"_120":-5,"_121":66,"_122":214,"_124":125,"_22":275,"_63":40,"_128":216,"_130":-5,"_132":26,"_133":-5,"_242":276,"_83":277},{"_18":204,"_20":205,"_118":206,"_120":-5,"_121":66,"_122":207,"_124":125,"_22":272,"_63":40,"_128":93,"_130":209,"_132":26,"_133":-5,"_242":273,"_83":274},{"_18":198,"_20":199,"_118":200,"_120":-5,"_121":66,"_122":140,"_124":125,"_22":269,"_63":40,"_128":93,"_130":202,"_132":26,"_133":-5,"_242":270,"_83":271},{"_18":190,"_20":191,"_118":192,"_120":-5,"_121":66,"_122":193,"_124":125,"_22":266,"_63":195,"_128":93,"_130":196,"_132":26,"_133":-5,"_242":267,"_83":268},{"_18":183,"_20":184,"_118":185,"_120":-5,"_121":66,"_122":64,"_124":125,"_22":263,"_63":187,"_128":93,"_130":188,"_132":26,"_133":-5,"_242":264,"_83":265},{"_18":175,"_20":176,"_118":177,"_120":-5,"_121":66,"_122":178,"_124":125,"_22":260,"_63":180,"_128":93,"_130":181,"_132":26,"_133":-5,"_242":261,"_83":262},{"_18":168,"_20":169,"_118":170,"_120":-5,"_121":66,"_122":171,"_124":125,"_22":257,"_63":40,"_128":93,"_130":173,"_132":26,"_133":-5,"_242":258,"_83":259},{"_18":159,"_20":160,"_118":161,"_120":-5,"_121":66,"_122":162,"_124":125,"_22":254,"_63":164,"_128":165,"_130":166,"_132":26,"_133":-5,"_242":255,"_83":256},{"_18":151,"_20":152,"_118":153,"_120":-5,"_121":66,"_122":154,"_124":125,"_22":251,"_63":156,"_128":129,"_130":157,"_132":26,"_133":-5,"_242":252,"_83":253},{"_18":143,"_20":144,"_118":145,"_120":-5,"_121":66,"_122":146,"_124":125,"_22":248,"_63":148,"_128":129,"_130":149,"_132":26,"_133":-5,"_242":249,"_83":250},{"_18":135,"_20":136,"_118":137,"_120":-5,"_121":66,"_122":138,"_124":125,"_22":245,"_63":140,"_128":129,"_130":141,"_132":26,"_133":-5,"_242":246,"_83":247},{"_18":116,"_20":117,"_118":119,"_120":-5,"_121":66,"_122":123,"_124":125,"_22":241,"_63":127,"_128":129,"_130":131,"_132":26,"_133":-5,"_242":243,"_83":244},["D",1788637027748],"children",[],[117],["D",1788637027903],[],[136],["D",1788623854592],[],[144],["D",1788637064090],[],[152],["D",1788637027743],[],[160],["D",1783778909848],[],[169],["D",1788625553368],[],[176],["D",1789136757315],[],[184],["D",1788625553301],[],[191],["D",1783620519645],[],[199],["D",1783620519452],[],[205],["D",1787853759938],[],[212],["D",1783616525202],{"_16":17,"_81":77},{"_16":17,"_75":-5,"_76":77,"_33":34,"_78":79,"_80":26},{"_63":64,"_20":65,"_18":66,"_67":19,"_68":-5,"_69":-5,"_70":-5,"_71":-5,"_72":-5,"_73":21,"_74":17},"ctx",{"_56":-5,"_101":315,"_316":317,"_318":319,"_320":26,"_321":26,"_322":26,"_323":125,"_324":-5,"_325":-7,"_326":-7,"_327":40,"_328":26,"_329":26,"_330":-5,"_331":26,"_332":26,"_333":26,"_334":-5},"ENV",{"_286":287,"_288":289,"_290":65,"_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"]

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