An in-memory TTL cache with request-scoped coalescing of pending loads, capacity-based eviction, and invalidation. Uses AsyncLocalStorage to deduplicate concurrent lookups for the same key. Reusable as a hot cache layer for any backend that needs to reduce database reads with bounded staleness.

Implements a cache-fill acquisition and publication protocol using Durable Objects. Provides acquire/renew/complete lifecycle with automatic renewal and deadline enforcement, ensuring only one worker fills a cache entry at a time. Reusable for any distributed system needing exclusive write access to a shared resource.

A string rewrite engine that compiles JSON-based rules into a trie, validates patterns against a safe subset of regex, and applies rewrites to request paths, query strings, headers, and body content. Includes structural guards to prevent accidental matches in non-text contexts. Reusable for any content protection or data governance layer.

A Go HTTP client that makes relayed requests to the Octopool Worker, handling envelope encoding/decoding, error propagation, and fallback to native `gh`. Demonstrates a clean pattern for building a CLI proxy that transparently routes API calls through a remote relay. Reusable for any CLI tool that needs to intercept and redirect API calls.