Claude Code
42 source-verified cases.
- Write the next gym training cycle from workout logs with Claude CodeRecreated promptEvidence: Screenshots or logs
Claude Code read four weeks of the poster's workout logs, found where lifts stalled, wrote the next training cycle with a reason for each starting weight, loaded the routines into the tracking app, and noted where the app would suggest the wrong weight.
Claude Code · Personal · Source date:
- Shop for cheaper home insurance quotes with Claude Code and ChromeRecreated promptEvidence: Described by poster
Using the poster's coverage details and access to Chrome, Gmail and the existing policy, Claude Code sought quotes from about a dozen insurers and found two strong candidates; the poster says they were approved by AAA at $3,100/year, a $4,600/year saving.
Poster says:$4,600/year saved
Claude Code, Claude in Chrome · Personal · Source date:
- Manage Google Ads with Claude Code connected to analytics and the websiteRecreated promptEvidence: Described by poster
With Google Ads, Google Analytics and the Webflow site connected to a Claude Code project, the poster adds negative keywords quickly, tracks ad performance, and found that mobile wasn't converting because the page showed nothing relevant above the fold.
Claude Code · Marketing · Source date:
- Screen and clear an email inbox in one pass with Claude CodeRecreated promptEvidence: Described by poster
The poster runs all email in Claude Code: in one pass it screened 27 emails, archived and unsubscribed, and sent sub-agents after the three that needed real thought.
Claude Code · Personal · Source date:
- Prepare an Indian income tax return (ITR-3) with Claude CodeRecreated promptEvidence: Described by poster
Given tax documents and a year of bank statements, Claude Code reconciled the figures against the poster's AIS (annual information statement), caught 2 mistakes that could have triggered notices, and computed the tax; the poster then filed.
Poster says:2 mistakes caught
Claude Code · Ops · Source date:
- Qualify scraped leads against your ideal customer before cold email with Claude CodeRecreated promptEvidence: Described by poster
Claude Code reads each scraped company's website and checks it against the poster's ideal customer profile, dropping about 30% of leads before outreach; the poster says reply rates roughly doubled and they booked 100+ meetings in 3 months.
Poster says:100+ meetings booked in 3 months
Claude Code · Marketing · Source date:
- Write and publish a short podcast episode with Claude Code (needed edits)Improved promptEvidence: Described by posterPartial
Claude Code wrote a short podcast script that the poster voiced with ElevenLabs and published via Anchor; the narration was clear but the script missed nuance and needed manual tweaks, so the poster rated it useful for drafts only.
Claude Code · Content · Source date:
- Transcribe and organize 411 family voice memos with Claude CodeRecreated promptEvidence: Screenshots or logs
Claude Code transcribed and clustered 411 voice memos left by the poster's late grandmother and built a small site organized by mood and date, which the family uses more than the photo album.
Poster says:411 voice memos transcribed
Claude Code · Personal · Source date:
- Reconcile crypto trades across chains and post them to Xero with Claude CodeRecreated promptEvidence: Described by poster
Claude Code tracked on-chain swaps across 10+ assets, produced a monthly gain/loss breakdown with reconciled exchange rates, then built a Xero connection and posted journal entries.
Claude Code · Ops · Source date:
- Extend a family tree two generations with Claude Code and browser agentsRecreated promptEvidence: Shown on video
Working from the family's archive scans, Claude Code with memory and the Claude browser plugin cross-checked church books, ship manifests and naturalization records, built a 300-page family wiki, and found two more generations in a day; the family is now checking it for errors.
Poster says:300-page family wiki
Claude Code, Claude in Chrome, Perplexity Comet · Research · Source date:
- Draft a firm landlord notice about a repeat water leak with Claude CodeRecreated promptEvidence: Described by poster
Instead of paying a lawyer for a strongly worded notice, the poster gave Claude Code the lease documents and context about a second water leak; it drafted an email that got them the concessions they wanted.
Claude Code · Personal · Source date:
- Make years of calls, podcasts and posts searchable with Claude CodeRecreated promptEvidence: Described by poster
Claude Code organized years of calls, podcasts, tweets and presentations into a searchable database connected to AI, with a daily job that adds new content; asked for a masterclass outline, it drew on 224 chunks from 78 sources.
Claude Code · Content · Source date:
- Migrate two websites from WordPress to Wagtail with Claude CodeRecreated promptEvidence: Described by poster
Over a weekend Claude Code migrated two sites from WordPress to Wagtail (PHP to Python), including server setup, data transfer, testing and fixes, and redesigned a homepage; the poster reports nothing broke and traffic and tools stayed in place.
Claude Code · Coding · Source date:
- Find smarter buying patterns in office supply order history with Claude CodeRecreated promptEvidence: Described by poster
Alex Hillman had Claude Code go through Indy Hall's paper products order history to suggest buying patterns that avoid costly last-minute orders.
Claude Code · Data · Source date:
- Plan a family Disneyland trip with Claude Code and SkillsRecreated promptEvidence: Screenshots or logs
The poster planned a family Disneyland trip using Claude Code as the agent, Claude Skills for research, planning, tracking and journaling, and a simple companion web app for itineraries and maps.
Claude Code · Travel · Source date:
- Do year-end bookkeeping and Xero reconciliation with Claude CodeRecreated promptEvidence: Screenshots or logs
Claude Code categorized a folder of receipts, cross-referenced exported bank CSVs against Xero to find duplicates and missing transactions, used the browser extension to report on reconciliation items, and produced a cost-cutting report; the poster says this replaced roughly $2–3K of accounting-firm work.
Poster says:~2–3K accounting-firm fee avoided
Claude Code, Claude in Chrome · Ops · Source date:
- Spot when you avoid conflict in meeting recordings with Claude CodeRecreated promptEvidence: Article or interview
Dan Shipper puts all his meeting recordings in a folder and asks Claude Code to find every time he subtly avoided conflict.
Claude Code · Personal · Source date:
- Diagnose why your Mac is running slow with Claude CodeRecreated promptEvidence: Article or interview
Anthony Roux uses Claude Code to check load, memory pressure, disk space, stuck processes and swap, dig into causes like caches, Docker and Time Machine snapshots, explain the results and suggest fixes with risk notes.
Claude Code · Personal · Source date:
- Migrate a 50-screen app from Firebase to Supabase with Claude CodeRecreated promptEvidence: Described by poster
Going feature by feature, the poster used Claude Code to generate database schemas, write queries and fix daily errors; they report migrating about 85% of a 45–50 screen Flutter app from Firebase to Supabase in 10–20 days.
Poster says:~85% migrated in 10–20 days
Claude Code · Coding · Source date:
- Turn one video script into a newsletter, titles, thread and description with Claude Code subagentsRecreated promptEvidence: Screenshots or logs
From one long-form video script, an orchestrator in Claude Code calls subagents that write a newsletter, generate titles, create thumbnails, write a thread and draft the YouTube description.
Claude Code · Content · Source date:
- Turn 200 photos of household items into a moving-sale list with Claude CodeRecreated promptEvidence: Described by poster
Claude Code processed over 200 photos of the poster's household items and created a moving-sale list with descriptions and prices; the poster says it saved hours compared with writing Facebook Marketplace listings by hand.
Claude Code · Shopping · Source date:
- Let a whole team self-serve data via an agent-written schema guideRecreated promptEvidence: Described by poster
Claude Code wrote a markdown guide to the company's data model and business terms from SQLMesh context and past queries; Hex's agent now answers the team's data requests, and the analyst hire was dropped.
Claude Code, Hex agent · Data · Source date:
- Audit 90 days of Meta ads from a CSV export with Claude CodeEvidence: Described by poster
Claude Code flagged 14 money-losing creatives, found that 7 of the top 10 ads opened with a question, and spotted 3 ad sets cannibalizing each other.
Poster says:14 money-losing creatives flagged
Claude Code · Marketing · Source date:
A weekend-built Claude Code pipeline scrapes leads, scores them against the ICP, writes spintax copy and launches the Instantly campaign with one command; the poster says it saves about 2 hours each morning.
Poster says:2 hours back every morning
Claude Code · Marketing · Source date:
- Merge provider price CSVs into one comparison table with Claude CodeRecreated promptEvidence: Described by poster
Claude Code read several local CSVs of model prices from different providers and produced one organized comparison table grouped by provider.
Claude Code · Data · Source date:
- Automate a daily analytics summary to Slack with Claude CodeRecreated promptEvidence: Described by poster
Claude Code set up a GitHub Actions cron that pulls PostHog data at 8am, summarizes it in Python and posts to Slack; the first report arrived the next morning.
Claude Code · Data · Source date:
- Build a weekly business KPI dashboard workflow with Claude Code + n8nRecreated promptEvidence: Article or interview
Claude Code built a complex n8n workflow for a client's weekly KPI dashboard in about 15 minutes; the workflow then runs unattended on n8n.
Claude Code, n8n · Ops · Source date:
- Break writer's block on a book with Claude Code interviewsRecreated promptEvidence: Described by poster
Claude Code reviewed a book draft, interviewed the author to fill gaps, and adapted his dictated answers into the manuscript in his own voice.
Claude Code · Content · Source date:
Claude Code installed yt-dlp, pulled and cleaned the captions of an 84-minute Gurley/Gerstner/Nadella talk, wrote focused debriefs, then packaged it as a reusable skill.
Claude Code · Content · Source date:
- Analyze every entry of a huge JSONL file with Claude Code subagentsRecreated promptEvidence: Described by poster
Claude Code previewed the data, trimmed fields, defined a schema and ran hundreds of Haiku subagents over ~45 minutes so every entry in a large JSONL file was analyzed.
Claude Code · Data · Source date:
- Compare Claude Code, Codex and Gemini CLI on a 97k-message chat datasetRecreated promptEvidence: Described by poster
The poster gave the same 97k-message WeChat dataset to Claude Code, Codex and Gemini CLI as analysts and published results with an evaluation table.
Claude Code, OpenAI Codex CLI, Gemini CLI · Data · Source date:
- Get DeepSeek-OCR running on an NVIDIA Spark with Claude CodeEvidence: Screenshots or logs
With four prompts and about 40 minutes, Claude Code figured out the right ARM CUDA PyTorch wheels, got DeepSeek-OCR running on NVIDIA Spark hardware, and OCR'd a test image.
Claude Code · Coding · Source date:
- Sort and rename messy invoices for taxes with Claude CodeRecreated promptEvidence: Article or interview
Claude Code reads each file in a messy invoice folder, renames it to 'YYYY-MM-DD Vendor - Invoice - ProductOrService.pdf' and files it in the right folder.
Claude Code · Ops · Source date:
- Turn stroller-walk voice notes into a published article with Claude CodeRecreated promptEvidence: Article or interview
A non-developer fed rambling voice notes to Claude Code, which organized them into research themes, wrote a full article in her voice and made LinkedIn versions.
Claude Code · Content · Source date:
- Write and ship a complete Datasette plugin with Claude CodeEvidence: Screenshots or logs
Claude Code (Sonnet 4.5) wrote every line of code and every test for the datasette-os-info plugin with minimal prompting, and the author shipped it.
Claude Code · Coding · Source date:
- Make a UK tax research agent from a folder of HMRC manuals with Claude CodeRecreated promptEvidence: Screenshots or logs
Using scraped HMRC manuals and legislation plus a CLAUDE.md that launches parallel subagents, Claude Code answered an ATT exam question in about 5 minutes, earning roughly 2.5 of 3 marks by the author's grading.
Claude Code · Research · Source date:
- Rename, organize and de-duplicate files with Claude CodeRecreated promptEvidence: Described by poster
Claude Code organized and renamed the poster's files and folders and found and removed duplicates; the poster says it worked incredibly well.
Claude Code · Personal · Source date:
- Diagnose a Kubernetes pod-scheduling outage with Claude CodeRecreated promptEvidence: Company case study
Anthropic's Data Infrastructure team gave Claude Code dashboard screenshots, and it traced the problem to pod IP exhaustion and supplied the commands to add a new IP pool; Anthropic says this saved about 20 minutes during an outage.
According to Anthropic:20 minutes saved during an outage
Claude Code · Ops · Source date:
Claude Code read and changed the local Apple Notes database and organized 225 notes in about 5 minutes with little manual effort.
Poster says:225 notes organized in about 5 minutes
Claude Code · Personal · Source date:
- Turn a blog post into a Quarto slide deck with Claude CodeRecreated promptEvidence: Described by poster
Claude Code read one of the author's blog posts and turned it into a Quarto slide deck in three prompts.
Claude Code · Content · Source date:
- Generate a colophon page for a GitHub Pages site with Claude CodeEvidence: Screenshots or logs
Claude Code wrote a script that builds a mobile-friendly colophon page listing every tool and its commit history, then wired it into the GitHub Pages deploy workflow.
Claude Code · Coding · Source date:
- Vibe-code a 3D town-building game with Claude CodeEvidence: Article or interview
From a single informal prompt, Claude Code built a working 3D game for placing buildings and driving around in about four minutes; follow-up prompts added a fire truck, traffic, and fires.
Reported by One Useful Thing:Working game in about four minutes
Claude Code · Coding · Source date: