Mirrors
test AI agent changes by replaying production traces
Details
- External ID
- 48768200
- Source
- HN
- Company
- —
- Product
- Mirrors
- Website domain
- runmirrors.com
- Launched
- July 2, 2026
- Cohort
- —
- Upvotes
- 8
- Upvotes percentile
- 0.46176821983273597
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Enrichment
- Theme
- ai agent infrastructure and tooling
- Vertical
- Horizontal
- Function
- Observability & eval
- Audience
- Developer
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- test ai agent changes by replaying production traces
- Manually corrected
- False
Could you build this?
No Mirrors requires building synthetic sandboxed digital twins of enterprise third-party APIs from production traces and orchestrating deterministic session replay across arbitrary LLM tools. Developing mock synthesis, state tracking, and network interception across multiple languages demands deep distributed systems and compiler/runtime expertise.
What it would actually take: The architecture requires SDK collectors (eBPF or language-level HTTP/gRPC middleware in TS/Python/Go) that stream request-response traces to an event ingestion engine (Kafka/ClickHouse). The system must analyze recorded traces, generate stateful synthetic mock servers with relational schema inference, and manage dynamic mock orchestration across transient test environments, coupled with diffing engines to evaluate model drift on non-deterministic tool calls.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 1866 launches clear the similarity bar, closest 8 shown.
Attention rank: #874 of 1867 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 246 days after the earliest competitor.
- Moda: The Continual Learning Layer for AI Agents · yc · 2026-03-04 · 122 upvotes · similarity 0.73
- Trainly · hn · 2026-04-22 · 6 upvotes · similarity 0.72
- Agentsnap · hn · 2026-07-29 · 5 upvotes · similarity 0.71
- Selvedge · hn · 2026-05-08 · 5 upvotes · similarity 0.70
- Ashr: Mimic Your Production Environment and Users to Catch Agent Fails · yc · 2026-02-27 · 9 upvotes · similarity 0.68
- agentagon · github · 2026-09-10 · 9 upvotes · similarity 0.67
- Skill-up · hn · 2026-07-30 · 5 upvotes · similarity 0.65
- BentoLabs AI: Monitoring and Learning layer for long-running agents · yc · 2026-06-01 · 83 upvotes · similarity 0.65
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.