Replay Doctor
Find the turn your prompt cache broke, and what it cost
Details
- External ID
- 1249887
- Source
- PH
- Company
- —
- Product
- Replay Doctor
- Website domain
- producthunt.com
- Launched
- Sept. 18, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Software Engineering, Artificial Intelligence, GitHub, OpenAI Day
- Fetched at
- Sept. 19, 2026, 1:14 a.m.
- Updated at
- Sept. 19, 2026, 1:14 a.m.
Description
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.
Enrichment
- Theme
- Codex monitoring and optimization tools
- Vertical
- Horizontal
- Function
- Observability & eval
- Audience
- Developer
- AI stance
- AI-native
- Project type
- Commercial product
- Normalized one-liner
- prompt cache debugger and cost tracker for llm developers
- Manually corrected
- False
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 — 46 launches clear the similarity bar, closest 8 shown.
Attention rank: #33 of 47 (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 0.40
- axonpush · ph · 2026-09-11 · 2 upvotes · similarity 0.39
- cachebeat · github · 2026-09-14 · 51 upvotes · similarity 0.38
- cache-tax · github · 2026-09-18 · 36 upvotes · similarity 0.38
- whenreset.help · ph · 2026-09-21 · 1 upvotes · similarity 0.37
- Replay QA · ph · 2026-07-20 · 415 upvotes · similarity 0.37
- Bastra Recall · ph · 2026-09-16 · 3 upvotes · similarity 0.37
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a observability & eval tool for Media & entertainment yet.