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esh-pfi-infrastructure/persistent-memory.d/2026-07-14-nvfp4-spike-built-the-full-mtp-serve-scaffolding.md
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vh d710e56aca memory: migrate persistent-memory.md to two-tier index (53 detail files)
Split the 53 over-threshold dated log entries (Recent decisions, Tried
and abandoned) into per-entry persistent-memory.d/<slug>.md detail files,
leaving one-line pointers in the index; the 10 short entries stay inline.
Startup index drops 60,527 -> 25,256 bytes (492 -> 270 lines); entry
bodies move verbatim to on-demand detail files, so a fresh session loads
~25 KB instead of ~60 KB and pulls a detail file only when its pointer is
relevant. Top matter (Repo purpose, Tools & conventions, Current state)
is unchanged; both archival back-references preserved.

CLAUDE.md persistent-memory section now documents the index<->detail read
discipline (read the index, pull details on demand, never bulk-read the
dir, commit both together).

Auto-archival still held every dated entry back (all <30 days old); the
July burst begins aging past the 30-day guard ~2026-07-31.
2026-07-15 13:33:42 -07:00

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Markdown

- `[2026-07-14]` **NVFP4 spike: built the full MTP serve scaffolding BEFORE validating a plain NVFP4 serve was coherent.** Chased 6 sequential serve-config fixes (entrypoint doubled `serve`, arch `ForCausalLM``ConditionalGeneration`, `--language-model-only`, mamba-cache/`max-num-seqs`) across a **2.5hr GPU window** (quoted 30-60 min) — only to find the served model gibbers (`!!!!`). LESSON: smoke a PLAIN `/v1/completions` coherence check on the SIMPLEST config (native arch, no MTP, no splice) FIRST — validate the tracer bullet before building spec-decode scaffolding. Also cost an unnecessary re-quant (the `re:mtp.*` ignore fix that turned out moot). Diagnostic ladder in Current state.