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Jan Novak 5717f018b7 chore: initial scaffold for latprobe CLI tool

Sets up project structure, working conventions (CLAUDE.md), README with
the full assignment and roadmap, seeded CHANGELOG, and a buildable Go
scaffold (Step 0) with flag parsing and stub probe types.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-07-01 00:16:05 +02:00

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Step 0 — Scaffold

What this step delivers

A buildable Go binary (latprobe) that parses flags and URLs, prints usage when invoked without arguments, and exits cleanly. No measurement logic yet — the full implementation is wired in during Steps 1–4.

Build

cd go
go build -o latprobe .

Usage

# No arguments → prints usage and exits with code 1
./latprobe

# With a URL → scaffold message until Step 1 is implemented
./latprobe https://example.com

Expected output (scaffold stage):

latprobe — measure per-phase HTTP request latency

Usage:
  latprobe [flags] <url> [url ...]

Flags:
  -n, --count int   Number of requests per URL (default 1)
      --json        Output results as JSON instead of text
  -h, --help        Show this help

Examples:
  latprobe https://example.com
  latprobe -n 5 https://example.com https://www.google.com
  latprobe --json https://example.com | jq .

Available flags (accepted by the parser, not yet functional)

Flag	Short	Default	Description
`--count`	`-n`	`1`	Number of requests per URL
`--json`	—	false	Output as JSON instead of text
`--help`	`-h`	—	Show usage

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