claude-codex-settings is a collection of configurations and reusable extensions for Claude Code, OpenAI Codex, Cursor, and related coding tools. Developers use its skills, commands, hooks, agents, plugins, and MCP servers to shape coding-agent workflows and connect alternative model APIs. The catalogue entries are components of this collection that can be installed into supported coding tools.
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.
npx skills add fcakyon/claude-codex-settings --skill yolo-traininggit clone --depth 1 https://github.com/fcakyon/claude-codex-settingsWrote 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.
[](https://agentmods.dev/skills/fcakyon/claude-codex-settings/yolo-training)<a href="https://agentmods.dev/skills/fcakyon/claude-codex-settings/yolo-training"><img src="https://agentmods.dev/badge/skills/fcakyon/claude-codex-settings/yolo-training/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.
<a href="https://agentmods.dev/skills/fcakyon/claude-codex-settings/yolo-training"><img src="https://agentmods.dev/badge/skills/fcakyon/claude-codex-settings/yolo-training.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00124 | $0.01410 |
| Opus 5.5 | $0.00050 | $0.00564 |
| Sonnet 5.5 | $0.00025 | $0.00282 |
| Haiku 4.5 | $0.00012 | $0.00141 |
Grade A, and why
yolo-training 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
YOLO26 training
Read the run before changing anything. The results.csv and confusion matrix usually name the
problem already.
Order of operations
Ordered by cost to try, cheapest first, not by size of the potential win.
- Epochs and schedule. Undertrained looks like every other problem, and it costs nothing but time to rule out.
- Augmentation. The knob for the generalization gap, at no extra compute per epoch.
- Loss weights and LR. Cheap, and the curves usually say which one is wrong.
- Model size. Scale up when train loss is still falling at the end of the schedule and the train and val curves sit close together. That is underfitting, and it is the only case a bigger model reliably fixes.
- Resolution. Compute scales with the square of
imgsz, so 640 to 1280 is roughly 4x the training budget, and pretrained weights transfer worse the further you move from the size they were fit at. Justify it with the object sizes in your data, not as a default first move. - Data, label quality and class balance. The highest ceiling and the slowest to move. The package ships no dataset-analysis tooling, so any audit here is your own script plus looking at images. Worth it once the cheap knobs are spent.
Diagnostic loop
import pandas as pd
df = pd.read_csv("runs/detect/train/results.csv")
df.columns = df.columns.str.strip()
print(df.tail(10)[["epoch", "train/box_loss", "val/box_loss", "metrics/mAP50(B)", "metrics/mAP50-95(B)"]])
print("best epoch:", df["metrics/mAP50-95(B)"].idxmax(), "of", len(df))
Then read, in this order:
| Read | Question it answers |
|---|---|
| best epoch vs total epochs | undertrained, overtrained, or right |
| train loss vs val loss trend | which side of the generalization gap |
| mAP50 vs mAP50-95 | classification and recall vs localization |
| P vs R at the operating point | over-suppression vs over-firing |
| per-class AP spread | one broken class or a general weakness |
| confusion matrix background row and column | false positives vs missed detections |
What ships with it
2 files 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.
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.
- 1mo ago First seen · 97 lines · 124 tokens per session scan A 583bc50d6995
yolo-training is a skill published in the GitHub repository fcakyon/claude-codex-settings (1,181 stars, last pushed today), licensed Apache-2.0. It adds 124 tokens to every session and 1,410 once invoked, about $0.0005 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 2026-09-03.
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