Best free Claude Code skills (2026)
The strongest skills on Loreto that cost nothing — download, drop into .claude/skills/, and run today.
The strongest skills on Loreto that cost nothing — download, drop into .claude/skills/, and run today. Every skill here is a real Loreto listing — a packaged SKILL.md with references and a runnable test.
Fine-Tuning GPT Models
Taking a pretrained GPT and adapting it to a new dataset without undoing what it already knows.
Preprocessing and Tokenizing Textual Datasets
Turning raw text into the tokenized, memory-mapped shards a GPT training loop can actually stream.
Training GPT Models with PyTorch
A training runbook for GPT models in PyTorch: torch.compile, DDP scaling, checkpoints that actually resume, and LR schedules tied to real s…
harness-shape: judge an agent framework by its imports
Three structural checks read straight from a repo's imports. It counts and names modules. It never scores.
HyDE, Federated and Streaming RAG
The three retrieval patterns that fix what a better index cannot: the shape of the question, where the data is allowed to live, and what ti…
Agent Driven Code Editing
A prompt, review and verify loop for changing code with an agent instead of editing by hand, with the checks that keep the diff honest.
Agent Context Files
Structure the files a long-running agent reads so its instructions stay current instead of going stale.
Skunky: Local-First Compartmentalized LLM Work
Hand bounded, sanitized work to untrusted LLM workers without exposing raw project files, identifiers, local paths, or secrets.
Branded ECharts Visualizations
Turn your brand's colours + fonts into polished, on-brand Apache ECharts charts — bar, line, pie, heatmap, radar, dashboards — rendered to…
Optimizing for People Also Ask
Maps the related follow-up questions a page should answer and flags the gaps, so you capture the whole question cluster.
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