vllm-quantization SKILL.md skillA

vllm-quantization from air-gapped/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add air-gapped/skills/vllm-quantization@git:20261018.1fb9d2d

Pins git:20261018.1fb9d2d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
air-gapped/skills
Path
.claude/skills/vllm-quantization/SKILL.md
Versions recorded
12
Latest version
git:20261018.1fb9d2d, committed Oct 18, 2026
First version recorded
Aug 18, 2026
Size
26,782 bytes
Repository stars
6
License
MIT

vLLM datacenter-GPU quantization — picking, configuring, troubleshooting NVFP4, FP8, MXFP4, MXFP8, AWQ, GPTQ, INT8, compressed-tensors, modelopt, quark on H100/H200/B200/B300/GB200/GB300; every `--quantization` flag value, KV-cache dtypes (fp8_e4m3, nvfp4, per-token-head, turboquant), MoE backend selection (CUTLASS, TRTLLM, FlashInfer, DeepGEMM, Marlin, Qutlass), producing checkpoints with llm-compressor and NVIDIA ModelOpt (NVFP4_DEFAULT_CFG, FP8_DEFAULT_CFG, W4A16, SmoothQuant+GPTQ), online…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# vLLM quantization — operator skill

Registries, counts and flag values below are re-derived from the **v0.32.0**
tree (2026-10-18); verification dates and citations live in
`references/sources.md`.

For production vLLM operators on **H100 / H200 / B200 / B300 / GB200 / GB300** fleets
deciding which quantization format fits a given target model, producing a
checkpoint vLLM will actually load, wiring the right KV-cache dtype, diagnosing
accuracy or throughput regressions after an upgrade, and composing quantization
with speculative decoding / LoRA / MoE.

Pointer-map format: this SKILL.md picks the format and CLI; the files in
`references/` hold the per-format deep dives, exact source pointers, and
troubleshooting cards. Follow the link, don't paraphrase from memory — the
quantization layer moves faster than any other subsystem in vLLM (six formats
landed in v0.19 alone).

## When quantization wins, when it doesn't

Quantization trades weight precision for memory + compute:

- **KV-capacity bound** (long context, high concurrency) — FP8 or NVFP4 **KV
  cache** gives a 2×/4× KV-capacity multiplier; weight format matters much
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add air-gapped/skills/vllm-quantization@sha256:0370272b8c52ede8

The line at the top of this page pins the label git:20261018.1fb9d2d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_fcsjwhjrql74f7yh.svg)](https://markdownregistry.com/a/art_fcsjwhjrql74f7yh)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 12 versions of this file, between Aug 18, 2026 and Oct 18, 2026, about one every 6 days.

versioncommittedcommitsizeaudit
git:20261018.1fb9d2d latest2026-10-18 1fb9d2d 26,782 BA view · diff
git:20261018.d9dcd1c2026-10-18 d9dcd1c 27,335 BA view · diff
git:20261018.941f07d2026-10-18 941f07d 27,558 BA view · diff
git:20261018.a3846792026-10-18 a384679 31,151 BA view · diff
git:20261018.41dec7b2026-10-18 41dec7b 31,464 BA view · diff
git:20260923.466430c2026-09-23 466430c 27,884 BA view · diff
git:20260922.fd884232026-09-22 fd88423 26,203 BA view · diff
git:20260915.23ffb182026-09-15 23ffb18 25,886 BA view · diff
git:20260915.1702bca2026-09-15 1702bca 25,797 BA view · diff
git:20260915.9e1fc692026-09-15 9e1fc69 25,414 BA view · diff
git:20260915.34767df2026-09-15 34767df 24,390 BA view · diff
git:20260818.6de1cf42026-08-18 6de1cf4 24,175 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (26782 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

air-gapped/skills · 6 stars · license MIT · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_fcsjwhjrql74f7yh
GET https://markdownregistry.com/api/v1/resolve?ref=air-gapped/skills/vllm-quantization
GET https://markdownregistry.com/api/v1/blob/0370272b8c52ede87a18278861700b1b5c13ffb08291627020c2c8c3e80b5b70

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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