gpu-allocation-fallback

gpu-allocation-fallback is a skill for Claude Code, Codex from nebius/nebius-physical-ai. It costs 57 tokens per session (396 once invoked), scanned A, original, Apache-2.0.

A workflow for handling repeated failures when placing GPU workloads. It records typed placement failures and, when the problem is qualifying capacity or quota exhaustion, asks for consent to try a compatible preemptible GPU instead.

In plain words
What is it for?
Use it to record GPU allocation attempts, recognise qualifying quota or capacity failures, present a fallback question after repeated or deterministic failures, and accept or decline the proposed preemptible allocation.
Why use it?
It separates capacity problems from unrelated failures such as authentication, networking, image downloads, or application errors. It also prevents an automatic switch and keeps the requested GPU and workload requirements intact.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/nebius/nebius-physical-ai/gpu-allocation-fallback
Any agent
npx skills add nebius/nebius-physical-ai --skill gpu-allocation-fallback
Clone the repo
git clone --depth 1 https://github.com/nebius/nebius-physical-ai

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for gpu-allocation-fallback

README.md
[![agentmods](https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/gpu-allocation-fallback.svg)](https://agentmods.dev/skills/nebius/nebius-physical-ai/gpu-allocation-fallback)
Your own site
<a href="https://agentmods.dev/skills/nebius/nebius-physical-ai/gpu-allocation-fallback"><img src="https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/gpu-allocation-fallback.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 396 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.00396
Opus 5 $0.00028 $0.00198
Sonnet 5 $0.00011 $0.00079
Haiku 4.5 $0.00006 $0.00040

Measured 5d ago against content hash dbcad04f2406, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

gpu-allocation-fallback scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/atomic/gpu-allocation-fallback/SKILL.md · 38 lines

What it actually says

GPU Allocation Fallback

Send typed results to POST /api/agent/gpu-allocation/attempt with a stable logical_allocation, the requested compatibility/execution/disk invariants, typed failure evidence, and the identical compatible preemptible candidate. The grounded route uses zero model tokens.

Only quota/capacity exhaustion, insufficient GPU or Unschedulable, and no compatible product/affinity count. Auth, RBAC, network, image-pull, checkpoint, application, runtime, cancellation, and timeout failures never count. The default prompt occurs on the third qualifying failure, or immediately when deterministic preflight proves on-demand cannot succeed and compatible preemptible capacity is available.

Never switch automatically. Present the returned question and proposed action. Accept through POST /api/agent/gpu-allocation/consent with its single-use, action-digest-bound confirm_token; decline with accept: false. A decline keeps on-demand and suppresses the same evidence until materially new evidence arrives.

Preserve GPU family/product/count, image/digest, SM and RT-core requirements, backend, model, workload tier, execution mode, and boot-disk count/bytes. The state record contains only redacted digests, classification, selected pool, and consent outcome. Success or a changed logical allocation resets attempt state.

Verify changes with:

npa/.venv/bin/python -m pytest \
  npa/tests/cli/test_agent_gpu_allocation_fallback.py \
  npa/tests/cli/test_agent_backend_render.py -q
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 38 lines · 57 tokens per session scan A dbcad04f2406

Subscribe to this mod's changes

gpu-allocation-fallback is a skill published in the GitHub repository nebius/nebius-physical-ai (27 stars, last pushed today), licensed Apache-2.0. It adds 57 tokens to every session and 396 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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