Nereid
2026A delivery-control plane that turns coding-agent work into evidence a human can review before approving it.
Next.js / TypeScript / Node.js / PostgreSQL / Drizzle / Zod / Codex CLI
Open projectPractical AI systems for real workflows.
I'm Tim Finch, an AI engineer building evidence-backed products and the systems needed to operate them responsibly.
Ship fewer things, and make them easy to understand.
Keep boring, predictable architecture in the critical path.
Test and evaluate as you build, not after.
Use design to cut clutter, not add polish.
Nereid
Runs
Evidence
Runners
Review
Settings
Evidence-backed delivery
Validated agent events, verification records, and an explicit human gate.
Test files
10
Tests passing
23
Adversarial
4
Deterministic policy evals
Local suite passing
Altered event replay
Rejected
Secret-like evidence
Redacted
Approval bypass
Rejected
Featured projects
Products I'm building.
Cutout Studio
2026A background-removal tool hardened into a verified beta with moderation, audit logging, and no image retention by default.
React / TypeScript / Express / PostgreSQL / OpenAI / ONNX
Open projectCampaignForge AI
2026A tool for turning one brief into a stronger campaign starting point across strategy, messaging, and creative direction.
FastAPI / Streamlit / Gemini / OpenAI-compatible JSON / Docker
Open projectEvalKit
2026A product for catching LLM regressions before they become user problems.
FastAPI / SQLAlchemy / PostgreSQL / Neon / Stripe / Railway
Open projectHoxa
2026A fitness product for people who want structure and progress without the usual gamified noise.
SwiftUI / SwiftData / FastAPI / OpenAI / TypeScript
Open projectCityScout
2026A city-first travel companion that helps people plan with more context and less friction.
SwiftUI / SwiftData / FastAPI / OpenAI / Next.js
Open projectCurrently building
Nereid — trusted delivery for coding agents.
Coding agents can produce code faster than humans can reconstruct and safely approve it. Nereid turns a GitHub issue into a customer-run task and an evidence packet for human review.
Milestone
Hosted preview and GitHub sign-in
Evidence
23 deterministic tests passing
Boundary
Human approval; never merge
DSN-inspired systems
A mission-position layer for a systems-led portfolio.
A minimal mission-operations visual backed by JPL Horizons when available. DSN communication status remains simulated unless a reliable DSN feed is implemented.
Simulated DSN-inspired snapshot
Simulated DSN-inspired snapshot using fallback mission positions and communication status.
Source · Simulated DSN-inspired snapshot
Updated Apr 8, 2026, 6:42 PM
DSN-inspired system view. Marker positions and signal lines are illustrative, not live NASA DSN coordinates.
Canberra
Voyager 2
Two-way18m 42s
Madrid
Mars Odyssey
Downlink07m 12s
Goldstone
Psyche
Uplink12m 09s
Canberra
Europa Clipper
Monitoring28m 31s
Featured writing
Articles, build threads, and workflow notes.
Writing about what I'm building, what is changing, and where the thinking is still getting worked out, including Cutout Nereid, Cutout Studio, PR-to-Paper Trail, and the systems behind them.
July 19, 2026 / Build Log
Why I’m Building Nereid: Trust After the Agent Writes the Code
Coding agents can produce changes faster than a reviewer can reconstruct them. Nereid is an attempt to make the delivery evidence explicit before a human approves.
9 min readRead
Inputs
Outputs
Scoring
Report
July 12, 2026 / Product Launch
Launching Cutout Studio as a Verified Beta
How a simple background-removal tool turned into a stricter public beta with verified login, moderation, abuse reporting, and no image retention by default.
7 min readRead
June 28, 2026 / Automation
Building a Reusable PR-to-Paper Trail Workflow in Codex
How a small internal review habit turned into a reusable Codex workflow for updates, follow-on actions, and all the admin that usually gets missed.
6 min readRead
June 21, 2026 / Product Strategy
Introducing CampaignForge AI
CampaignForge AI takes one campaign brief and turns it into a stronger starting point across strategy, messaging, and creative direction.
7 min readRead
Inputs
Outputs
Scoring
Report
June 24, 2026 / Commercial Strategy
Choosing the Right Commercial Path for CampaignForge AI
The best next step for CampaignForge AI is not a big platform play. It is to pick the smallest shape that makes sense and see if people want it.
8 min readRead
June 27, 2026 / Architecture
What CampaignForge AI Needs Before Hosted Deployment
CampaignForge AI could become a hosted product, but only once the boring basics are in place.
8 min readRead
June 9, 2026 / Product Strategy
Introducing EvalKit
A launch note for EvalKit covering the problem, the product model, the current build, and where it goes next.
8 min readRead
Active builds
The writing that sits closest to the products: what they are, why they exist, and what still needs sorting.
Nereid
A trusted-delivery control plane for coding agents, built around evidence and human approval.
Cutout Studio
A safer public beta for portrait background removal with verified login, moderation, and audit logging.
CampaignForge AI
CampaignForge AI is a structured campaign-planning workflow that turns one brief into a usable marketing starting point.
EvalKit
EvalKit is a product for catching LLM regressions before they quietly reach users.
Hoxa
Hoxa is a fitness product for people who want structure without the usual streaks-and-guilt performance layer.
CityScout
CityScout is a city-first travel companion with a local-first iOS app and a shared AI backend.
CreatorOS
CreatorOS is a strategy-first AI system that helps creators turn source material into useful next steps.
Reusable workflow
PR-to-Paper Trail
A reusable Codex workflow for reviewing pull requests and drafting the follow-up work people usually forget: ticket updates, doc prompts, follow-on actions, and an audit trail.