albucore: Skill for Codex

.codex/skills/albucore-benchmarks/SKILL.md

albucore-benchmarks is a skill for Codex from albumentations-team/albucore. It costs 48 tokens per session (2,219 once invoked), scanned A, original, MIT.

A guide to running small performance measurements for Albucore, a Python library for image-processing operations. It covers synthetic test data, timing scripts, and comparisons between package versions.

In plain words
What is it for?
Adding benchmarks, measuring image-processing routers on different array layouts and data types, and comparing installed PyPI releases.
Why use it?
It gives developers a repeatable way to detect whether a change makes image-processing code faster or slower.

Skill for Codex

Written for Codex: installed under .codex/. Also seen: mentions Codex.

This is albumentations-team/albucore's own configuration. It tells Codex how to work on albucore itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything albucore configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is uv run python benchmarks/benchmark_router_synthetic.py \.

Reuse

Borrowing it

Nothing to install: this file belongs to albumentations-team/albucore. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/albumentations-team/albucore/main/.codex/skills/albucore-benchmarks/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/albumentations-team/albucore

Made for: 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 albucore-benchmarks

README.md
[![agentmods](https://agentmods.dev/badge/skills/albumentations-team/albucore/albucore-benchmarks/github.svg)](https://agentmods.dev/skills/albumentations-team/albucore/albucore-benchmarks)
Your own site
<a href="https://agentmods.dev/skills/albumentations-team/albucore/albucore-benchmarks"><img src="https://agentmods.dev/badge/skills/albumentations-team/albucore/albucore-benchmarks/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for albucore-benchmarks

Your own site · 80×15
<a href="https://agentmods.dev/skills/albumentations-team/albucore/albucore-benchmarks"><img src="https://agentmods.dev/badge/skills/albumentations-team/albucore/albucore-benchmarks.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,219 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00048 $0.02219
Opus 5.5 $0.00019 $0.00888
Sonnet 5.5 $0.00010 $0.00444
Haiku 4.5 $0.00005 $0.00222

Measured yesterday against content hash 400fcf2eb639, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

albucore-benchmarks 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 yesterday.

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.

.codex/skills/albucore-benchmarks/SKILL.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Albucore Benchmarks

Albucore benchmark scope

Measure Albucore public operations only, including Core-owned dispatch, conversions, allocations and memory costs. AX functional, transform, Compose and DataLoader performance campaigns require an explicit user request and never become automatic acceptance gates for Core. Choose a matrix for the affected operations and routing boundaries; the canonical guide below defines the detailed scope.

Before designing a performance comparison, read ../performance-optimization/SKILL.md and ../../../docs/performance-optimization.md completely. Extend the benchmark along the dimension that controls the candidate, such as label density for bincount, table and channel layout for LUTs, or output size and dtype for random generation.

Use Python 3.11 and the latest stable third-party releases compatible with Python 3.11 and the target platform for acceptance benchmarks. The recorded 2026-10-31 profile includes PyTorch 2.15.0 (2.15.0+cpu on Linux), NumPy 2.4.6, OpenCV 5.0.0.93, NumKong 7.8.6, and StringZilla 5.3.2. Re-resolve and record all package versions and imported source paths before each acceptance run. uv run follows uv.lock; verify its resolved profile before using results as acceptance evidence.

Use exactly one CPU thread per process for every candidate, following the thread controls in the canonical performance guide. Benchmark additional thread counts only when the user explicitly requests thread scaling. Record enabled backend/ISA flags and verify the intended host profile before acceptance. A sandbox that denies sysctl can disable NumKong NEON. On macOS ARM64, invoke local benchmark commands through Codex with sandbox_permissions="require_escalated" and verify nk.get_capabilities()["neon"] is true in the same process. The router harness rejects this restricted profile by default; --allow-restricted-isa is for diagnostics only. Do not force NumKong capabilities to make an acceptance run appear native. For dtype comparisons, use the same logical inputs and operation controls; choose floating controls exactly representable in float16 when the route is compared across float16 and float32. Do not benchmark an identity route for one dtype against real work in another.

Read the full file on GitHub · 133 lines

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. yesterday Changed · +14 lines 400fcf2eb639
  2. 4d ago Changed · +19 lines 7876ca9ca37e
  3. 24d ago Changed · +5 lines 5946ec5e0549
  4. 1mo ago Changed · +8 lines 4bfe0b04d9d0
  5. 2mo ago Changed · +3 lines d4013c6acc7f
  6. 2mo ago First seen · 84 lines · 48 tokens per session scan A 6207800e02b0

Subscribe to this mod's changes

albucore-benchmarks is a skill published in the GitHub repository albumentations-team/albucore (124 stars, last pushed yesterday), licensed MIT. It adds 48 tokens to every session and 2,219 once invoked, about $0.0002 per session on Opus 5.5. 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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