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jevVIDEO

Jev handles local harness routing for Claude Code, Codex and Opencode

Using Jev with a deterministic hook, the author routes tasks by difficulty: mechanical work to Haiku, intelligent work to Opus sub-agents, and long-running implementation to an external harness.

Lahfir
@mdlahfirArchived 2026.09.18Originally posted 2026.09.17
Lahfir @mdlahfirOriginally posted 2026.09.17
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Jev solved local harness/model routing I use a combination of Claude Code, Codex and Opencode as my local agentic stack and routing to other harnesses was always enforced in the system prompt/rules With a deterministic hook that Claude Code can decide before delegation, Jev helps to route to the right harness/model based on the task, and it's pretty accurate based on the intensity/intelligence of the task > Mechanical tasks get routed to Haiku > Intelligent ones to Opus sub-agents > Long-running implementation work to external harness

x.com/mdlahfir/status/2100314182201802811Archived 2026.09.18 00:44