Harness Router
Fast AI tool routing powered by Jev.
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Harness Router is a decision layer for AI coding agents that makes tool selection faster, cheaper, and more reliable before execution. Use it as a Codex hook to automatically route every tool call, or as a skill when the agent should invoke routing explicitly. Obvious decisions stay on the fast path, ambiguous choices are resolved with Jev, and complex multi-step decisions can escalate to MCTS.
PH · launched Sep 28, 2026 · 79 upvotes (top 2%) · 0 views
Niche: llm routing and gateway tools · 143 launches, 5 in the last 7 days ▼ -62% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Commercial product
- Open Source
- Developer Tools
- Artificial Intelligence
Visit website ↗ Source listing ↗
More like this: all 143 launches in llm routing and gateway tools →
Could you build this?
Partial A fast decision/routing layer for agent tool calling requires fine-tuned micro-models, embedding-based semantic matching, or low-latency classification heuristics to outperform basic LLM prompting.
What it would actually take: Requires training small, sub-100ms classifier models (e.g., lightweight BERT/DeBERTa or tiny ONNX embeddings with vector search) fine-tuned on code-agent trajectories to predict which tool to invoke. Needs to be deployed as an ultra-low-latency hook with sub-20ms P99 response time.
Competitors
Other products that read as similar to this one : 355 launches clear the similarity bar, closest 8 shown.
Attention rank: #20 of 356 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 334 days after the earliest competitor.
- harness-router · github · 2026-09-25 · 18 upvotes · similarity 0.65
- Immune-Harness · github · 2026-09-25 · 9 upvotes · similarity 0.61
- Jev Router · ph · 2026-11-09 · 1 upvotes · similarity 0.58
- HarnessHive · ph · 2026-10-13 · 85 upvotes · similarity 0.56
- HarnessRouter: Unified interface for agent harnesses · hn · 2026-08-17 · 10 upvotes · similarity 0.56
- Harness² · ph · 2026-10-20 · 167 upvotes · similarity 0.55
- dsh-jev-plugin · github · 2026-09-27 · 56 upvotes · similarity 0.51
- jev-harness · github · 2026-09-22 · 18 upvotes · similarity 0.51
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