Replay Doctor
Find the turn your prompt cache broke, and what it cost
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
See what your AI agent actually spent. Replay reads the transcripts Claude Code and OpenAI Codex already keep on disk, reconstructs token usage and cache behavior, and names the turn a prompt cache broke and what it cost. It reproduces the provider's own cache reads before reporting anything, and prints NOT MEASURED where the evidence is absent instead of guessing. Built to measure GPT-6 Astra. Not measured yet. Single Go binary, zero third-party dependencies, no account.
PH · launched Sep 18, 2026 · 1 upvote (top 69%) · 0 views
Niche: llm cost monitoring tools · 49 launches, 2 in the last 7 days ▼ -60% · Explore this niche →
Category and tags
- Horizontal
- Observability & eval
- Developer
- AI-native
- Commercial product
- Software Engineering
- Artificial Intelligence
- GitHub
- OpenAI Day
Visit website ↗ Source listing ↗
More like this: all 49 launches in llm cost monitoring tools →
Could you build this?
Yes The tool parses existing local JSON transcripts from CLI tools, applies standard tokenization/caching formulas, and displays cost breakdowns in a simple UI or CLI.
Competitors
Other products that read as similar to this one : 95 launches clear the similarity bar, closest 8 shown.
Attention rank: #80 of 96 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 263 days after the earliest competitor.
- Claude Code usage tracking by LangWatch · ph · 2026-07-30 · 351 upvotes · similarity 0.45
- Rustly · ph · 2026-09-22 · 2 upvotes · similarity 0.41
- axonpush · ph · 2026-09-11 · 2 upvotes · similarity 0.39
- cachebeat · github · 2026-09-14 · 51 upvotes · similarity 0.39
- ShipSnag · ph · 2026-10-29 · 1 upvotes · similarity 0.39
- AI Cache Care · ph · 2026-10-20 · 2 upvotes · similarity 0.39
- HarnessForge Studio · ph · 2026-10-28 · 1 upvotes · similarity 0.38
- cache-tax · github · 2026-09-18 · 36 upvotes · similarity 0.38
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.