hakorune/lang/src/runner/core

Runner Core (Plan Builder)

Scope

• Decision-only layer to build a RunnerPlan from CLI/ENV inputs.
• No I/O or process execution here. Rust (Floor) applies the plan.

Status

• Phase 20.26‑C scaffold. Opt‑in via HAKO_RUNNER_PLAN=1 once wired.

Contract (MVP)

• Provide RunnerPlanBuilder.build(args) that returns a small JSON object with a minimal set of fields:
  • {"action":"ExecuteCore|ExecuteVM|ExecuteNyLlvmc|Skip|Error", "gate_c":bool, "engine":"core|vm|llvm", "plugins":bool, "quiet":bool}
• Fail‑Fast on ambiguity; no silent fallbacks.