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📄 Claude Code Docs Tracker\n\nAutomatically scrapes [code.claude.com/docs/en/overview](https://code.claude.com/docs/en/overview) once per day and tracks content changes over time.\n\n## How it works\n\n```mermaid\ngraph LR\n A[⏰ Daily Cron] --> B[Fetch page]\n B --> C{Content changed?}\n C -->|Yes| D[Save snapshot with changed=true]\n C -->|No| E[Save snapshot with changed=false]\n D --> F[📊 Dashboard]\n E --> F\n```\n\n## Files\n\n| File | Type | Description |\n|------|------|-------------|\n| `scraper.ts` | Interval (daily) | Fetches the page and stores a snapshot in SQLite |\n| `dashboard.ts` | HTTP | Web dashboard to view snapshot history and diffs |\n| `database.ts` | Script | Database helpers (init, queries, fetch logic) |\n\n## Dashboard\n\nThe dashboard shows:\n- **Snapshot history** — every daily fetch with timestamp and content size\n- **Change detection** — badges showing whether content changed\n- **Diff view** — sentence-level diff between any two snapshots\n","createdAt",["D",1776790765720],"branchVersion","branchId","765bf998-3da2-11f1-b7e5-42b51c65c3df","id","765a873e-3da2-11f1-b7e5-42b51c65c3df","claude-code-docs-tracker",["D",1776790340483],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Daily scraper for code.claude.com/docs to track changes","imageUrl","8d27e3f0-0511-11f0-8c26-c3590a4b98ba","pinnedFileId","62f69d76-3da3-11f1-bf2f-42b51c65c3df","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","1863035a-df6f-4063-a7ca-d8a03ebf0de9","tursoName","765a873e3da211f1b7e542b51c65c3df","tursoHostname","765a873e3da211f1b7e542b51c65c3df-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789509672838],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_103":102,"_110":106},"org",{"_103":102,"_104":-5,"_105":106,"_19":58,"_107":108,"_109":30},"branch",{"_13":92,"_37":93,"_46":45,"_94":47,"_95":-5,"_96":-5,"_97":-5,"_98":-5,"_99":-5,"_100":48,"_101":102},"isOwned",11,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","ytl2002","handle","displayName","avatar","https://img.clerk.com/eyJ0eXBlIjoicHJveHkiLCJzcmMiOiJodHRwczovL2ltYWdlcy5jbGVyay5kZXYvb2F1dGhfZ2l0aHViL2ltZ18ydVlSNFNvSXdBQk5acEdnTWFkYkdFRkZYbXEifQ","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_46":47,"_37":48,"_41":195,"_50":-5,"_51":30,"_52":53,"_54":53,"_55":56,"_57":-5,"_19":58,"_59":60,"_61":62,"_63":-5,"_64":-5,"_65":66,"_67":68,"_69":70,"_71":72,"_73":196,"_75":-5,"_76":77,"_78":77,"_79":80,"_81":80,"_82":80,"_83":77,"_84":77,"_85":197,"_87":198,"_89":199,"_91":30},"tree",[178,179,180,181],"files",[178,179,180,181],"counts",{"_167":66,"_168":169,"_170":66,"_171":172,"_173":174},"contents",[133,134,135,136],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_46":164,"_37":33,"_35":36,"_140":-5,"_44":45,"_43":14,"_142":30,"_41":165,"_13":66,"_38":26,"_39":40,"_29":30,"_146":-5,"_32":166},{"_46":157,"_37":158,"_35":60,"_140":-5,"_44":45,"_43":159,"_142":30,"_41":160,"_13":66,"_38":161,"_39":162,"_29":30,"_146":-5,"_32":163},{"_46":148,"_37":149,"_35":150,"_140":-5,"_44":45,"_43":151,"_142":30,"_41":152,"_13":153,"_38":154,"_39":155,"_29":30,"_146":-5,"_32":156},{"_46":137,"_37":138,"_35":139,"_140":-5,"_44":45,"_43":141,"_142":30,"_41":143,"_13":66,"_38":144,"_39":145,"_29":30,"_146":-5,"_32":147},"51ad8412-3da3-11f1-9126-42b51c65c3df","scraper.ts","51ad84f8-3da3-11f1-9126-42b51c65c3df","parentId",4,"latest",["D",1776790708438],"interval","import { initDB, fetchPage, getLatestSnapshot, saveSnapshot } from \"./database.ts\";\n\nconst TARGET_URL = \"https://code.claude.com/docs/en/overview\";\n\nexport default async function(interval: Interval) {\n await initDB();\n\n console.log(`[${new Date().toISOString()}] Scraping ${TARGET_URL}...`);\n\n const content = await fetchPage(TARGET_URL);\n const latest = await getLatestSnapshot();\n\n const changed = !latest || (latest as any).content !== content;\n\n await saveSnapshot(content, changed);\n\n if (changed) {\n console.log(`✅ Change detected! New content length: ${content.length} (was: ${latest ? (latest as any).content_length : \"N/A\"})`);\n } else {\n console.log(`ℹ️ No changes. Content length: ${content.length}`);\n }\n}\n","label",[138],"4dd4e15a-3da3-11f1-9126-42b51c65c3df","database.ts","7661a956-3da2-11f1-b7e5-42b51c65c3df",3,["D",1776790701964],2,"script","import { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\n\nconst TARGET_URL = \"https://code.claude.com/docs/en/overview\";\n\n// Initialize DB\nexport async function initDB() {\n await sqlite.execute(`CREATE TABLE IF NOT EXISTS snapshots (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n url TEXT NOT NULL,\n content TEXT NOT NULL,\n content_length INTEGER NOT NULL,\n fetched_at TEXT NOT NULL DEFAULT (datetime('now')),\n changed INTEGER NOT NULL DEFAULT 0\n )`);\n}\n\n// Fetch page content as plain text\nexport async function fetchPage(url: string): Promise {\n const resp = await fetch(url);\n if (!resp.ok) throw new Error(`Failed to fetch ${url}: ${resp.status}`);\n const html = await resp.text();\n // Strip HTML tags to get plain text for diffing\n return html\n .replace(/]*>[\\s\\S]*?<\\/script>/gi, \"\")\n .replace(/]*>[\\s\\S]*?<\\/style>/gi, \"\")\n .replace(/<[^>]+>/g, \" \")\n .replace(/\\s+/g, \" \")\n .trim();\n}\n\n// Get the latest snapshot\nexport async function getLatestSnapshot() {\n const result = await sqlite.execute(\n `SELECT * FROM snapshots WHERE url = ? ORDER BY id DESC LIMIT 1`,\n [TARGET_URL],\n );\n return result.rows[0] ?? null;\n}\n\n// Get all snapshots (most recent first)\nexport async function getSnapshots(limit = 50) {\n const result = await sqlite.execute(\n `SELECT id, url, content_length, fetched_at, changed FROM snapshots WHERE url = ? ORDER BY id DESC LIMIT ?`,\n [TARGET_URL, limit],\n );\n return result.rows;\n}\n\n// Get a single snapshot by ID\nexport async function getSnapshotById(id: number) {\n const result = await sqlite.execute(\n `SELECT * FROM snapshots WHERE id = ?`,\n [id],\n );\n return result.rows[0] ?? null;\n}\n\n// Save a new snapshot\nexport async function saveSnapshot(content: string, changed: boolean) {\n await sqlite.execute(\n `INSERT INTO snapshots (url, content, content_length, changed) VALUES (?, ?, ?, ?)`,\n [TARGET_URL, content, content.length, changed ? 1 : 0],\n );\n}\n",[149],"62f69bf0-3da3-11f1-bf2f-42b51c65c3df","dashboard.ts",5,["D",1776790737429],"http","import { initDB, getSnapshots, getSnapshotById } from \"./database.ts\";\nimport { parseVal } from \"https://esm.town/v/std/utils/index.ts\";\n\nfunction diffLines(oldText: string, newText: string): string {\n const oldLines = oldText.split(\". \");\n const newLines = newText.split(\". \");\n const oldSet = new Set(oldLines);\n const newSet = new Set(newLines);\n\n const added = newLines.filter(l => !oldSet.has(l));\n const removed = oldLines.filter(l => !newSet.has(l));\n\n let html = \"\";\n if (removed.length > 0) {\n html += `

🔴 Removed (${removed.length} sentences)

`;\n for (const line of removed.slice(0, 50)) {\n html += `

${escapeHtml(line)}

`;\n }\n html += `

`;\n }\n if (added.length > 0) {\n html += `

🟢 Added (${added.length} sentences)

`;\n for (const line of added.slice(0, 50)) {\n html += `

${escapeHtml(line)}

`;\n }\n html += `

`;\n }\n if (added.length === 0 && removed.length === 0) {\n html += `

No differences found.

`;\n }\n return html;\n}\n\nfunction escapeHtml(s: string): string {\n return s.replace(/&/g, \"&\").replace(//g, \">\").replace(/\"/g, \""\");\n}\n\nexport default async function(req: Request): Promise {\n await initDB();\n const url = new URL(req.url);\n\n // API: compare two snapshots\n if (url.pathname === \"/api/diff\") {\n const oldId = Number(url.searchParams.get(\"old\"));\n const newId = Number(url.searchParams.get(\"new\"));\n if (!oldId || !newId) return Response.json({ error: \"Provide ?old=ID&new=ID\" }, { status: 400 });\n const oldSnap = await getSnapshotById(oldId);\n const newSnap = await getSnapshotById(newId);\n if (!oldSnap || !newSnap) return Response.json({ error: \"Snapshot not found\" }, { status: 404 });\n return Response.json({\n old: { id: (oldSnap as any).id, fetched_at: (oldSnap as any).fetched_at, content_length: (oldSnap as any).content_length },\n new: { id: (newSnap as any).id, fetched_at: (newSnap as any).fetched_at, content_length: (newSnap as any).content_length },\n });\n }\n\n // API: get snapshot content\n if (url.pathname === \"/api/snapshot\") {\n const id = Number(url.searchParams.get(\"id\"));\n if (!id) return Response.json({ error: \"Provide ?id=ID\" }, { status: 400 });\n const snap = await getSnapshotById(id);\n if (!snap) return Response.json({ error: \"Not found\" }, { status: 404 });\n return Response.json(snap);\n }\n\n // View source\n if (url.pathname === \"/source\") {\n return new Response(null, { status: 302, headers: { Location: parseVal().links.self.val } });\n }\n\n // Diff page\n if (url.pathname === \"/diff\") {\n const oldId = Number(url.searchParams.get(\"old\"));\n const newId = Number(url.searchParams.get(\"new\"));\n if (!oldId || !newId) return new Response(\"Provide ?old=ID&new=ID\", { status: 400 });\n const oldSnap = await getSnapshotById(oldId);\n const newSnap = await getSnapshotById(newId);\n if (!oldSnap || !newSnap) return new Response(\"Snapshot not found\", { status: 404 });\n const diffHtml = diffLines((oldSnap as any).content, (newSnap as any).content);\n\n return new Response(\n `\n\n\nDiff — Claude Code Docs Tracker\n\n\n← Back\n

📊 Diff View

\n Comparing snapshot #${(oldSnap as any).id} (${(oldSnap as any).fetched_at})\n → #${(newSnap as any).id} (${(newSnap as any).fetched_at})\n

${diffHtml}

\n`,\n { headers: { \"Content-Type\": \"text/html\" } },\n );\n }\n\n // Main page — list snapshots\n const snapshots = await getSnapshots(100);\n\n let tableRows = \"\";\n for (let i = 0; i < snapshots.length; i++) {\n const s = snapshots[i] as any;\n const prev = snapshots[i + 1] as any;\n const changedBadge = s.changed\n ? `Changed`\n : `No change`;\n const diffLink = prev\n ? `View diff`\n : `First snapshot`;\n tableRows += `\n #${s.id}\n ${s.fetched_at}\n ${s.content_length.toLocaleString()} chars\n ${changedBadge}\n ${diffLink}\n `;\n }\n\n const html = `\n\n\nClaude Code Docs Tracker\n\n\n

📄 Claude Code Docs Tracker

Tracking changes to code.claude.com/docs/en/overview

\n View source ↗\n

\n\n${snapshots.length === 0\n ? `

No snapshots yet

The scraper runs daily. Check back tomorrow, or trigger it manually.

`\n : `

\n \n \n \n \n \n \n \n \n \n \n ${tableRows}\n

ID	Fetched At (UTC)	Size	Status	Diff

`}\n`;\n\n return new Response(html, { headers: { \"Content-Type\": \"text/html\" } });\n}\n",[158],"73d4bae2-3da3-11f1-8f73-42b51c65c3df",["D",1776790765720],[33],"pulls","branches",1,"forks","envVars",{"_175":66,"_177":66},"connections",{"_175":66,"_176":66},"count","unfilledCount","emptyCount",{"_46":164,"_37":33,"_35":36,"_140":-5,"_44":45,"_43":14,"_142":30,"_41":192,"_13":66,"_38":26,"_39":40,"_29":30,"_146":-5,"_183":193,"_32":194},{"_46":157,"_37":158,"_35":60,"_140":-5,"_44":45,"_43":159,"_142":30,"_41":189,"_13":66,"_38":161,"_39":162,"_29":30,"_146":-5,"_183":190,"_32":191},{"_46":148,"_37":149,"_35":150,"_140":-5,"_44":45,"_43":151,"_142":30,"_41":186,"_13":153,"_38":154,"_39":155,"_29":30,"_146":-5,"_183":187,"_32":188},{"_46":137,"_37":138,"_35":139,"_140":-5,"_44":45,"_43":141,"_142":30,"_41":182,"_13":66,"_38":144,"_39":145,"_29":30,"_146":-5,"_183":184,"_32":185},["D",1776790708438],"children",[],[138],["D",1776790701964],[],[149],["D",1776790737429],[],[158],["D",1776790765720],[],[33],["D",1776790340483],["D",1789509672838],{"_103":102,"_110":106},{"_103":102,"_104":-5,"_105":106,"_19":58,"_107":108,"_109":30},{"_13":92,"_37":93,"_46":45,"_94":47,"_95":-5,"_96":-5,"_97":-5,"_98":-5,"_99":-5,"_100":48,"_101":102},"ctx",{"_85":-5,"_130":233,"_234":235,"_236":237,"_238":30,"_239":30,"_240":30,"_241":62,"_242":-5,"_243":-7,"_244":-7,"_245":66,"_246":30,"_247":30,"_248":-5,"_249":30,"_250":30,"_251":30,"_252":-5},"ENV",{"_204":205,"_206":207,"_208":93,"_209":210,"_211":212,"_213":214,"_215":216,"_217":218,"_219":220,"_221":222,"_223":224,"_225":226,"_227":228,"_229":230,"_231":232},"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"]

Diff · v6