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dctmfoo/README.md

Nagarajan Natarajan

Solutions architect building agentic engineering workflows — I run OpenAI Codex and Claude Code side-by-side, in parity, on real production codebases, and I've spent 20+ years deploying enterprise software into regulated industries (pharma, financial services, government, oil & gas).

Currently: Senior Principal Architect in OpenText's Customer Success Organization, where I embed with enterprise engineering teams on cloud, GenAI, and content-platform programs — increasingly with coding agents as first-class actors in delivery.

Selected work

Project What it is
gaurava Shipped App Store health & medication tracker (watchOS + widgets, Hindi/Tamil/Telugu) — full source of a production iOS app built end-to-end with Codex (incl. the Build iOS Apps plugin) and Claude Code
withful Shipped App Store family-moments journal, live in 175 countries (en/fr/zh) — SwiftData + CloudKit private sync, 5 widget surfaces, App Intents/Siri, agent-governed delivery
intelli-expense On-device receipt scanning for iPhone + Mac (Apple Foundation Models) with a review-gated agent import bridge for Codex and Claude Code
stepback Hands-free workout routine builder & player (iPad/iPhone/Mac) with an agent bridge — ask your agent for a training week, it lands in the app, review-gated
underwriting-workbench Evidence-first life-insurance underwriting assistant POC — deterministic plan-aware rules engine, citation-grounded hybrid RAG (LanceDB + bge-m3), MLX LoRA fine-tune with MLflow-tracked bake-off + divergence guard, FastAPI review workbench; fully synthetic fictional insurer
manifest-overlay-studio Enterprise Documentum overlay generator built for agents to operate safely — one validated Pydantic manifest → a byte-stable Helm overlay tree; CLI/REST/web façades held in bijection by test; 1,100+ tests incl. byte-parity golden fixtures; ships as a single-file .exe for locked-down jump hosts
goal-campaigns Pattern for multi-day autonomous campaigns with Codex goals — adversarial convergence gates, state-file governance, and a demo API + k6 harness
hanuman-dev Multi-model plan→work→review orchestrator with dedicated Codex and Claude Code adapters
openai-agents Personal AI companion on the OpenAI Agents SDK (TypeScript) with deny-by-default tool policy gating
workspace-bootstrap Agent-governance scaffold: AGENTS.md/CLAUDE.md contracts, lifecycle hooks, session journals — for Codex and Claude Code
doot-companion Sanitized 215K-LoC personal AI companion snapshot with governed Codex/Claude Code contributors and 271 verified tests
session-journal Installable continuity discipline with shared Claude Code/Codex hooks, agent-led adoption, secrets guard, and cross-platform tests
simpalarm Shipped macOS menu-bar alarm app, distributed via its own Homebrew tap
project-context Pattern for persistent, context-rich AI agent workspaces

Pattern: the agent write bridge. Intelli-Expense and StepBack both ship the same pattern: a local folder-drop protocol that lets a coding agent (Codex / Claude Code) author in-app data — receipts, workouts, routines, weekly plans — behind explicit human review. The agent reads the app's manifest, extracts fields conversationally, and drops JSON commands into an app-owned inbox; the running app validates, persists, and syncs. Agents never touch the data store, and the protocol has no delete capability. Protocol docs: intelli-expense/plugin · stepback/plugin.

Two consumer apps on the App Store — Gaurava (watchOS + widgets, localized in Hindi/Tamil/Telugu) and withful: family moments (available in 175 countries) — built end-to-end with agent workflows, including Codex's Build iOS Apps plugin — and both are now fully open source (see the table above). Most of my day-job work (enterprise Documentum/cloud deployments, agentic ops tooling, LLM fine-tuning POCs) lives in private repos — but the architecture of the deployment tooling is public as manifest-overlay-studio, re-cut against a fully fictional customer.

Also active as dctmfoo123.

📫 LinkedIn

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  1. doot-companion doot-companion Public

    Personal AI companion runtime — multi-interface chat (Telegram/Discord/CLI/web), memory indexing + hybrid search, scheduled jobs, and coding agents (Codex CLI, Claude Code) orchestrated as governed…

    TypeScript

  2. session-journal session-journal Public

    A journaling discipline + hooks that give Claude Code and Codex agents continuity between sessions — installable by your own agent via ADOPT.md.

    Shell

  3. stepback stepback Public

    Hands-free workout routine builder & player for iPad, iPhone, and Mac — SwiftUI/SwiftData/CloudKit, with a local agent bridge so Claude Code / Codex can compose your workouts and weekly plans, revi…

    Swift

  4. withful withful Public

    withful: family moments — shipped App Store family journal (175 countries, en/fr/zh; SwiftData+CloudKit, 5 widget surfaces, App Intents) built end-to-end with OpenAI Codex and Claude Code as govern…

    Swift

  5. underwriting-workbench underwriting-workbench Public

    Evidence-first life-insurance underwriting assistant POC: deterministic plan-aware rules engine, citation-grounded hybrid RAG, MLX LoRA fine-tune with MLflow-tracked evals, FastAPI review workbench…

    Python

  6. manifest-overlay-studio manifest-overlay-studio Public

    Schema-driven Documentum overlay generator: one validated Pydantic manifest in, a byte-stable per-environment Helm overlay tree out. CLI/REST/web-wizard parity enforced by test; built for AI agents…

    Python