Case studies
Systems that run without me.
Each project below runs in production, unattended. Every case surfaces a live demo and the code within the first screen — problem, architecture, decisions, metrics.
Agent tooling · GitHub automation · instruction synthesisSkill MergeScan real Hermes skill Markdown files in a GitHub repo, detect section conflicts, resolve them side-by-side, and open a draft PR with one unified AGENTS.md.Browser media engineeringKeeptakeMark useful moments in a real local screen recording, then render one playable visual WebM cut with bounded context and no upload.Design-system accessibilityLuma WeaveA browser-local contrast cartographer that maps every CSS color-token pairing and writes a minimal AA repair back into source.Local voice authoringWallnotePair one live public-domain museum work with a real microphone take, then share or download the source-linked voicecard without uploading voice bytes.Local image geometrySketchshiftTurn a real photo of a paper or whiteboard flow into editable, accessible browser geometry without uploading the image.Incident process studioHandrailTurn an incident lead's own response steps into a persistent, keyboard-ready process rail that can be shared without an account or backend.Repository cartographyChorus MapTurn one live public GitHub repository into a portable architecture poster without cloning or executing its code.GitHub transaction safetyDecision PressTurn one merged pull request into a source-linked architecture decision, then open it as a draft review.Probabilistic planningWeather Window BookerTurn one outdoor task and real place into a calendar-ready work block backed by a live WeatherNext ensemble.GitHub transaction safetyRedline ReproTurn one issue into one bounded regression-test draft pull request without executing or merging repository code.CI recovery systemsNight RequeueReview one exact GitHub Actions attempt, isolate every non-success job, and requeue failures only after the live run identity and affected job set still match.Market data systemsSeamlineNormalize public Polymarket and Kalshi books, reconstruct a three-source fair line, and fail closed before recording a bounded browser-local paper intent.Real-time systemsSidebandConnect two browsers with human-carried WebRTC signaling, then pass live text and files directly without accounts or payload storage.Release automationRelease PagekeeperTurn a live GitHub release and one stale Markdown block into a deterministic branch, exact-SHA commit, and reviewable pull request.Local-first file operationsDownloads CrewStage loose local files into predictable folders, verify every copy, and remove originals only after the whole batch is safe.Storage reliabilityParity DeckCycle six erasure-coded shards through healthy, missing, and corrupt states, then reconstruct from any four checksum-valid survivors.Local-first planningRetainer RunwaySplit a prioritized client worklist into what fits a fixed monthly retainer and what overflows.Release automationBumpdockTurn a live monorepo pull request into one dependency-aware Changesets commit guarded by the exact reviewed branch head.Local-first browser adaptationTapReadyEnlarge one hard-to-hit live-page control through a reversible, origin-local bookmarklet without uploading page data.Browser document engineeringFinal PacketTurn real local PDFs and images into one indexed, submission-ready packet without uploading source bytes.Voice AI productAiVoicePhoneA 24/7 AI receptionist that answers the calls a business would otherwise miss and turns them into captured, qualified leads.AI agencyTreCal Media GroupAn AI agency delivering automation, lead generation, and customer-communication systems to realtors and small business owners.Browser media engineeringClean TakeDraw time-bounded privacy tape over a real local video, optionally mute the interval, and render a fresh WebM without uploading source bytes.Local-first developer toolingRuleboundBind an explicit engineering policy to a real local JavaScript repository, preview current breaches, and install a runnable gate without uploading files.Model evaluationAI Code JudgeCompare code-generation systems with executable rubrics, unbiased pass@k, paired bootstrap intervals, and reproducible evidence receipts.Agent coordinationSecond ShiftTurn a live public GitHub issue queue into one collision-resistant work floor shared across real browser tabs.Privacy engineeringNoise LedgerCompose repeated Gaussian analytics in Renyi space, inspect each query's exposure, and gate the full plan before release.Software supply-chain securityAttest LensA browser-native provenance microscope that separates signed-byte integrity, artifact binding, policy, and fail-closed promotion.Distributed systemsLease ForgeConfigure a lease expiry, replay one resumed stale command, and inspect why the resource must fence old holders.Prediction-market intelligenceSmart Money TrackerA read-only decision surface that normalizes current Kalshi and Polymarket activity into one tape for whale prints, leaderboard identities, wallet flow, and smart-money agreement.OrchestrationAgentic WorkforceA personal team of specialist agents run by a chief-of-staff, reachable from my phone.Autonomous pipelinesOvernight FoundryAgents research, spec, and advance business ideas overnight; a brief is on my phone by 8am.ReliabilitySelf-Improvement LoopA daily loop where agents propose upgrades and safely patch their own prompts with rollback.Content automationSEO / Content SystemsAn automated content pipeline plus continuous rank and keyword monitoring on top.Localization toolingPlural LensA cardinal-plural proofing workbench that makes missing locale forms visible across 201 integer counts.Developer toolingCache WindowA response-cache policy instrument that turns Cache-Control directives into a scrub-able freshness and stale-reuse timeline.Security toolingCell SentryA local CSV inspection workbench that maps formula-capable prefixes to exact parsed cell coordinates.Distributed-team toolingOverlap LoomA recurring-meeting loom that exposes daylight-saving offset changes across eight weekly local-time outcomes.Reliability engineeringRetry YardA deterministic webhook delivery simulator that makes backoff, throttling, idempotency, and dead-letter routing inspectable.Distributed systemsCausal CanvasA local-first synchronization microscope that makes causality, concurrency, and deterministic convergence visible.Observability engineeringTail ScopeA deterministic tail-sampling policy lab that makes ordered decisions and bounded capacity pressure inspectable.Computational imagingImageManipA serverless Python pipeline for controlled frequency, sensor-noise, compression, entropy, and metadata transformations.NLP · YouTube API · Next.jsClapmarkTextTiling NLP segments a real ASR transcript into topically coherent chapters. TF-IDF names each segment. One button writes the chapter block to your YouTube video description via OAuth.Security · Binary Analysis · Next.jsMIME DispatchDrop any file and instantly compare its magic-byte signature, file extension mapping, and browser-reported MIME type. Detects file-type masquerade attacks — ELF binaries disguised as images, polyglot ZIPs, misnamed media — with a hex dump showing exactly which bytes triggered the signature match.HCI · Ergonomics · ISO 9241-411 · Next.jsfitts-labRun a live ISO 9241-411 pointing calibration session at two DPI conditions. The lab measures your actual movement time per trial, applies least-squares Fitts's Law regression, filters IQR outliers, and recommends the throughput-optimal DPI with an OpenLogi-compatible profile export.Geospatial · Browser-local · SVG · Next.jsGeoStampLoad your Google Timeline export, and GeoStamp detects distinct trips using a home-cluster spatial algorithm, renders each trip on an animated equirectangular SVG map, and exports a shareable travel card — all without uploading a single byte.API tooling · developer productivitySchema LedgerPaste two JSON Schemas and get an exact backward-compatibility breakdown — removed fields, type changes, narrowings, new required constraints — each with a TypeScript migration guard stub. Browser-local, zero API calls.developer tooling · CI/CD · graph algorithmsFlow FormEnter any public GitHub repo and get a topological CI dependency diagram committed directly to /docs/flow-form.svg — no Mermaid, no graphviz, custom DAG layout engine from scratch.Developer ToolCron PlotPaste any 5-field cron expression — see its 90-day week × hour heatmap and detect midnight storms, weekend gaps, and rate spikes instantly.Developer tooling · log analysis · browser-localSignal PlotPaste nginx or Apache access log lines. Get instant operational intelligence: request rate timeline, status breakdown, top paths, and anomaly detection — all browser-local.AI tooling · image analysis · browser-localChroma StampDrop any local image and get its visual DNA — palette, edge character, tonal key, and composition — as a ready-to-use GPT-Image-2 style prompt. Entirely browser-local, zero upload.Developer ToolQuery SlicePaste any multi-table SQL SELECT query and get an instant JOIN graph, predicate inventory, output column map, and complexity score — browser-local, zero upload.Developer Tool · Graph Algorithms · GitHub APIMesh GuardFetch real import graphs from any public GitHub repo, detect circular dependency cycles with Tarjan SCC, see Martin instability per file, draw boundary zones, and export an enforceable ESLint config.Developer ToolLog LedgerPaste a conventional-commit git log and get instant semver bump detection, commits grouped by type, and a ready-to-copy CHANGELOG.md block — browser-local, zero uploads.Knowledge EngineeringWikiWeaveLoad your local Markdown vault, compute TF-IDF cosine similarity between every note pair, and write [[wikilinks]] directly into your source files — no upload, no server, no cloud.Space Tech · Orbital Mechanics · Satellite TrackerOverpassEnter your location, pick a prediction window, and Overpass computes every upcoming satellite pass overhead — using real live TLE data and SGP4 propagation running entirely in your browser.Developer Tool · WebAssembly · Binary InspectorWasm ScopeDrop any .wasm binary. Decode its section manifest, type signatures, imports, and exports entirely in your browser — no upload, no execution, no server.Developer Tool · HTTP · Security AnalysisHTTP TracePaste any raw HTTP/1.1 request and get instant anatomy: headers annotated with RFC semantics, body decoded (JSON/form), and an A–F security scorecard — entirely in your browser.Developer Tool · Text Analysis · LCS AlgorithmDiff MotionPaste any two texts and watch character-level changes appear instantly: deletions in red, insertions in green, with edit distance, LCS length, and similarity percentage — computed entirely in your browser.Monitor · Data Visualization · Real-Time APIQuake PulseLive USGS M2.5+ earthquake feed plotted on a rotating orthographic SVG globe with depth classification, magnitude-coded markers, event sidebar, and time/magnitude filters — computed entirely in the browser, zero upload.Developer Tool · Observability · ArchitectureArc TraceUpload an OpenTelemetry trace export and commit a runtime service topology map to your GitHub repository — your actual architecture, derived from production telemetry, not a hand-drawn guess.Developer Tool · Typography · Binary ParsingFont ProbeDrop any TTF or OTF. Font Probe decodes every SFNT binary table in pure TypeScript, surfaces Unicode block coverage across 52 blocks, classifies the license type from name table text, and renders your text live in the loaded font — zero upload, zero server.Developer Tool · GitHub API · Import Graph AnalysisBranch DeltaPaste a GitHub PR URL. Branch Delta fetches both commit trees via the GitHub Trees API, extracts import statements from every changed TypeScript, JavaScript, and Python source file, computes the structural dependency delta, and posts a formatted review comment directly to the PR.Security Tool · Browser-local · Content Security PolicyCSP ProbePaste any Content-Security-Policy header and get instant forensic anatomy: directive inventory with per-source risk classification, attack-vector coverage matrix, A–F security grade with scored deductions, and actionable hardening steps. Browser-local. Zero upload.GitHub Discussions · GraphQL API · Community toolingStudy SyncFetch the most-engaged Discussion threads from any public GitHub repository, compose a structured analysis/question/answer in a two-panel workspace, and post a real GitHub Discussion comment via the GraphQL addDiscussionComment mutation.WebMIDI · Music Theory · Real-time Signal ProcessingNote RollPlay notes on an on-screen piano (or MIDI keyboard). Note Roll captures the live performance, runs Krumhansl-Schmuckler key detection against 24 psychoacoustic key profiles, segments chord clusters, and exports a downloadable SVG lead sheet — all browser-local, zero upload.Facilitation Tool · Browser-local · Timebox PlanningAgenda LoomShape a meeting around one fixed hard stop, adjust each segment in place, and expose breathing room, overruns, and after-stop work before the session begins.Image Tool · Browser-local · Responsive Art DirectionCrop ChoirPlace one focal point on a local image, compare it across four publishing frames, and hand one portable CSS object-position recipe to a site or CMS.Developer Tool · Protocol Buffers · Browser-localProto ScopePaste any base64-encoded protocol buffer binary and an optional .proto schema. Instantly decode every field: wire type, byte offset, raw value, and schema-matched name with type interpretation — all in the browser, zero upload.Health Tool · Signal Processing · Browser-localCadence LogOpen on your phone and walk or run. The browser reads real accelerometer data at 60–120 Hz, applies a 4th-order Butterworth filter and an adaptive peak detector, counts each step, and downloads a GPX 1.1 cadence log you can import to Strava, Garmin Connect, or any fitness app.Developer Tool · RFC 7519 · Browser-localJWT ScopePaste any JWT token and get instant forensic anatomy: algorithm risk classification (none=CRITICAL, RS256=STRONG), RFC 7519 registered claim annotations with semantic descriptions, live expiry countdown, OIDC extension claims, and key ID detection — all in the browser, zero upload.Developer Tool · npm Registry · Compare SurfacePkg DeltaType a package name and two version numbers. Pkg Delta fetches both manifests live from the npm registry and renders a structured diff: dependency additions, removals, semver-classified bumps (MAJOR/MINOR/PATCH), script changes, and manifest field changes — entirely in the browser, zero backend.Audio Tool · Web Audio API · Operate SurfacePod ChapterDrop a podcast or audio file. Pod Chapter decodes it in your browser using the Web Audio API, runs an energy-envelope silence-detection algorithm to find natural topic breaks, shows an editable chapter timeline, and exports an MP3 with embedded ID3v2 CHAP frames — no upload, no account, no server.Code Review Tool · Static Analysis · Operate SurfaceYAGNI WatchPaste a GitHub PR URL. YAGNI Watch fetches the unified diff, runs static analysis on TypeScript, JavaScript, and Python files to detect YAGNI violations — dead conditionals, TODO stubs, over-parameterized functions, single-variant switches, unnecessary I-prefix interface abstractions — and posts a structured GitHub Review with file:line citations.Performance Tool · Network Inspector · Command/Inspect SurfaceHAR InspectDrop a browser HAR file and instantly see an interactive waterfall timeline of every request — timing phases (DNS / TCP / TLS / TTFB / receive), response sizes, speed classification (FAST/OK/SLOW/CRITICAL), domain grouping, and the three slowest requests highlighted — all browser-local, zero upload.Writing Tool · AI Pattern Detector · Operate SurfaceProse SharpPaste or type prose. Prose Sharp detects 12 specific AI-writing pattern types inline in real-time — hedging, filler intensifiers, passive constructions, pseudo-profound qualifiers, and more — highlights each match with colored wavy underlines, and lets you accept or reject targeted fixes one annotation at a time. A paragraph-density heatmap rail shows pattern concentration at a glance. Browser-local, zero upload.Print Utility · Imposition Tool · Operate SurfaceFolio FoldBuild a duplex booklet imposition plan in one browser tab. Name each page, set reading direction, and Folio Fold computes the physical sheet order for saddle-stitch binding — showing exactly which pages share each face, generating a print-room ticket, and exporting a JSON plan. No upload, no document parser, no account.Video Tool · Caption Tool · Operate SurfaceBreathlineTurn one spoken passage into timed, readable caption cues and export a browser-local WebVTT file. Tap any word to set a cue break; the timing strip updates instantly to show duration and words-per-minute for every cue — no upload, no backend, no account.