skills

Skills to guide Claude Code, Codex, and other coding agents on using the Weights & Biases AI developer platform to train models and build agents.

For model training

• Log metrics and rich media during model training and fine-tuning
• Track model training experiments
• Analyze runs and experiment results to understand how the model is learning
• Tune hyperparameters

For agent building

• Trace agentic AI applications
• Analyze traces and classify them into failure modes
• Evaluate models with labeled datasets
• Run online evaluations for production monitoring

Getting Started

npx skills add wandb/skills

Then set your W&B API key:

export WANDB_API_KEY=<your-key>

npx skills is a utility for installing skills into major coding agent CLIs. Use --global to install for all projects, or --agent <name> to target a specific agent. See the npx skills docs for more details.

Available Skills

Skill	Description	Status
wandb-primary	Comprehensive primary skill for agents working with Weights & Biases. Covers both the W&B and Weave SDK	claude-code: 32/35 (91%)

Benchmarks

We maintain a growing internal benchmark suite that evaluates each skill across coding agents and task categories. Skills are evaluated automatically on every merge to main.

Category	Tasks	Claude Code (sonnet4.6)	Codex (gpt-5.3-codex)
Weave analysis	26	97%*	63%*
Weave tooling	11	95%*	83%*
Model training	8	90%*	85%*
LLM finetuning & RL analysis	14	72%*	86%*
Failure & outlier detection	8	86%*	63%*

*Pass rates are +/- 3%. Many tasks span multiple categories.

Contributing

See CONTRIBUTING.md.