Ariel Frischer ariel-frischer

Coding Agents: Semantic RAG Search vs Traditional Retrieval Methods

A comprehensive analysis of code retrieval approaches for AI coding agents, comparing semantic/RAG-based search against traditional methods (grep, keyword search) and agentic tool use. Focus: empirical data and benchmarks over opinions.

Executive Summary

Approach	Accuracy	Speed	Cost	Scalability	Best For

Spec-Driven vs Prompt-Driven Development: Quick Summary

Date: 2025-12-18 Model: Claude Opus 4.5 for both approaches Projects: 6 small-to-medium Go CLI tools (1-5k LOC each) Full Report: spec-comparison-projects.md

What is Spec-Driven Development?

Spec-Driven vs Prompt-Driven Comparison Report

Date: 2025-12-18
Last Updated: 2025-12-18 23:45 UTC
Model: Claude Opus 4.5 (claude-opus-4-5-20251101) for both approaches
Projects Evaluated: 6 projects (URL Shortener, Linkcheck, Git Hooks Manager, Env Validator, API Mock Server, Cron Parser)
Methods: autospec all (spec-driven) vs claude -p (prompt-driven)

Canvas Animation to MP4 Recorder

A minimal, production-ready React component for recording HTML5 Canvas animations directly to MP4 using the WebCodecs API. Records at 10x faster than realtime with hardware acceleration.

Features

✅ True MP4 output with H.264 codec (not WebM)
✅ Hardware accelerated encoding via WebCodecs VideoEncoder
✅ 10x faster than realtime (5 second video encodes instantly)
✅ Frame-perfect recording - no dropped frames or timing issues

	#!/bin/bash
	# =============================================================================
	# CLIPHIST SECRET CLEANER
	# Auto-removes passwords/secrets from clipboard history after a configurable delay
	# =============================================================================
	#
	# DESCRIPTION:
	# Monitors cliphist for high-entropy strings (likely passwords) and
	# automatically deletes them after a delay. Uses Shannon entropy and
	# character diversity to detect secrets.

	#!/usr/bin/env bash

	# ============================================================================
	# Wayland Screen Recording Toggle Script
	# ============================================================================
	#
	# Description:
	# Toggle screen recording on/off with region selection for Wayland compositors
	# (Hyprland, Sway, etc.). First press starts recording, second press stops it.
	#

	#!/bin/bash
	# Claude Code PostToolUse Hook for Auto-formatting and Linting
	#
	# This script integrates with Claude Code's hook system to automatically
	# format and lint files after they're edited or created.
	#
	# How it works:
	# 1. Claude Code calls this script after Write/Edit/MultiEdit\|Update operations
	# 2. The script receives JSON input via stdin containing:
	# - session_id: Current Claude session

	#!/usr/bin/env bash
	set -euo pipefail

	# Get cost and usage data from AWS Cost Explorer
	result=$(aws ce get-cost-and-usage --no-cli-pager \
	--time-period Start=$(date -d '7 days ago' '+%Y-%m-%d'),End=$(date '+%Y-%m-%d') \
	--granularity DAILY \
	--metrics "BlendedCost" "UsageQuantity" \
	--group-by Type=DIMENSION,Key=SERVICE)

	#!/usr/bin/env bash
	set -euo pipefail

	# Get cost and usage data from AWS Cost Explorer
	result=$(aws ce get-cost-and-usage --no-cli-pager \
	--time-period Start=$(date -d '7 days ago' '+%Y-%m-%d'),End=$(date '+%Y-%m-%d') \
	--granularity DAILY \
	--metrics "BlendedCost" "UsageQuantity" \
	--group-by Type=DIMENSION,Key=SERVICE)

	# Install + configure https://github.com/di-sukharev/opencommit
	# Use ocp for quick git add + commit + push
	function ocp() {
	local remote="$1"
	git add -A
	oco --yes
	if [ -n "$remote" ]; then
	git push "$remote"
	else
	git push