docs(rfc): explain best-first speculation generation - #513
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## Summary ### Why? The best-first generator needs a durable explanation of how it ranks paths lazily without enumerating every dependency-outcome combination. ### What? Document the Open and Next flow, preferred and unpreferred assumptions, flip ordering, heap-node expansion, logarithmic scoring, edge cases, correctness properties, and rejected alternatives.
This was referenced Aug 5, 2026
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August 5, 2026 05:01
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Summary
Why?
The best-first generator needs a durable explanation of how it ranks paths lazily without enumerating every dependency-outcome combination.
What?
Document the Open and Next flow, preferred and unpreferred assumptions, flip ordering, heap-node expansion, logarithmic scoring, edge cases, correctness properties, and rejected alternatives.
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