Alex Metelli

Selected Work

Engineering case studies with real technical depth.

AI tooling, backend infrastructure, developer tooling, blockchain systems, and product engineering projects with concrete evidence, tradeoffs, and outcomes.

  • 7Case studies
  • 5+Years experience
  • Backend + infraCore focus
  • Blockchain + AI toolingDomain expertise
Featured

AgentReceipt

AI Tooling

Local-first Go CLI for recording AI coding sessions and producing verifier-ready replay evidence.

RoleIndependent developer infrastructure engineer
Impact / proofCaptures git, filesystem, instruction, and provider evidence; signs receipts; emits replay/focus JSON with reviewability metadata, quality gates, policy checks, and ranked agent-review tasks.
  • Go
  • CLI
  • AI Tooling
  • Developer Infrastructure
  • Replay
  • Provenance
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Agent Tooling

Skills Doctor

TypeScript CLI for auditing Claude/Codex Agent Skills for quality, structure, scoring, and repair readiness.

Proof / evidenceScans local skill roots, validates frontmatter and workflow quality, checks referenced files, reports JSON/human-readable findings, and prepares agent repair handoff after confirmation.
  • TypeScript
  • CLI
  • AI Tooling
  • Static Analysis
  • Agent Skills
  • Validation
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AI Workflows

RitualAI

TypeScript CLI that scans local Claude/Codex prompt history and turns repeated workflows into reusable skills.

Proof / evidenceClusters recurring prompt patterns locally, lets the user approve a candidate, and guides it into a reusable SKILL.md workflow.
  • TypeScript
  • CLI
  • AI Workflows
  • Local-first
  • Developer Productivity
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Product Engineering

ScopePilot

Agency proposal configurator for scope, pricing, approvals, revisions, and client delivery.

Proof / evidenceLive product with public user documentation for proposal and change-order workflows.
  • TypeScript
  • Astro
  • Cloudflare Workers
  • Bun
  • PostgreSQL
  • Product workflows
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Cross-chain Infra

AggSandbox

Cross-chain infrastructure experiments using LayerZero, AggLayer concepts, and executable contract scripts.

Proof / evidenceCross-chain protocol experiments with executable contracts and scripts.
  • Rust
  • Docker
  • Solidity
  • AggLayer
  • LayerZero
  • EVM
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Developer Tooling

Voyager Verifier

Starknet contract verification tooling with compiler integration and status tracking.

Proof / evidenceBuilt for Starknet verification workflows at Nethermind.
  • Rust
  • Starknet
  • Cairo
  • Scarb
  • AWS Console
  • CloudWatch
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DeFi

Horizon Protocol

Starknet yield tokenization protocol with SY/PT/YT assets, AMM markets, router flows, frontend, and indexer.

Proof / evidenceAlpha mainnet deployment with live SplitYield product and documented Starknet contract addresses.
  • Cairo
  • Starknet
  • TypeScript
  • Next.js
  • Apibara
  • PostgreSQL
  • DeFi
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