chore(skills): move heavy training skills + outlines to optional-skills (#22912)

These skills require heavy GPU/CUDA stacks or are niche enough that they shouldn't
be active by default. Moved to optional-skills/ where users opt-in via
`hermes skills install official/...`.

Moved:
- mlops/training/axolotl
- mlops/training/trl-fine-tuning
- mlops/training/unsloth
- mlops/inference/outlines

Counts: 91 -> 87 built-in, 72 -> 76 optional.

Auto-regenerated docs (per-skill pages + catalogs) reflect the move.

website/docs/user-guide/skills/optional/mlops/mlops-training-axolotl.md

@@ -0,0 +1,181 @@
+---
+title: "Axolotl — Axolotl: YAML LLM fine-tuning (LoRA, DPO, GRPO)"
+sidebar_label: "Axolotl"
+description: "Axolotl: YAML LLM fine-tuning (LoRA, DPO, GRPO)"
+---
+
+{/* This page is auto-generated from the skill's SKILL.md by website/scripts/generate-skill-docs.py. Edit the source SKILL.md, not this page. */}
+
+# Axolotl
+
+Axolotl: YAML LLM fine-tuning (LoRA, DPO, GRPO).
+
+## Skill metadata
+
+| | |
+|---|---|
+| Source | Optional — install with `hermes skills install official/mlops/axolotl` |
+| Path | `optional-skills/mlops/training/axolotl` |
+| Version | `1.0.0` |
+| Author | Orchestra Research |
+| License | MIT |
+| Dependencies | `axolotl`, `torch`, `transformers`, `datasets`, `peft`, `accelerate`, `deepspeed` |
+| Platforms | linux, macos |
+| Tags | `Fine-Tuning`, `Axolotl`, `LLM`, `LoRA`, `QLoRA`, `DPO`, `KTO`, `ORPO`, `GRPO`, `YAML`, `HuggingFace`, `DeepSpeed`, `Multimodal` |
+
+## Reference: full SKILL.md
+
+:::info
+The following is the complete skill definition that Hermes loads when this skill is triggered. This is what the agent sees as instructions when the skill is active.
+:::
+
+# Axolotl Skill
+
+## What's inside
+
+Expert guidance for fine-tuning LLMs with Axolotl — YAML configs, 100+ models, LoRA/QLoRA, DPO/KTO/ORPO/GRPO, multimodal support.
+
+Comprehensive assistance with axolotl development, generated from official documentation.
+
+## When to Use This Skill
+
+This skill should be triggered when:
+- Working with axolotl
+- Asking about axolotl features or APIs
+- Implementing axolotl solutions
+- Debugging axolotl code
+- Learning axolotl best practices
+
+## Quick Reference
+
+### Common Patterns
+
+**Pattern 1:** To validate that acceptable data transfer speeds exist for your training job, running NCCL Tests can help pinpoint bottlenecks, for example:
+
+```
+./build/all_reduce_perf -b 8 -e 128M -f 2 -g 3
+```
+
+**Pattern 2:** Configure your model to use FSDP in the Axolotl yaml. For example:
+
+```
+fsdp_version: 2
+fsdp_config:
+  offload_params: true
+  state_dict_type: FULL_STATE_DICT
+  auto_wrap_policy: TRANSFORMER_BASED_WRAP
+  transformer_layer_cls_to_wrap: LlamaDecoderLayer
+  reshard_after_forward: true
+```
+
+**Pattern 3:** The context_parallel_size should be a divisor of the total number of GPUs. For example:
+
+```
+context_parallel_size
+```
+
+**Pattern 4:** For example: - With 8 GPUs and no sequence parallelism: 8 different batches processed per step - With 8 GPUs and context_parallel_size=4: Only 2 different batches processed per step (each split across 4 GPUs) - If your per-GPU micro_batch_size is 2, the global batch size decreases from 16 to 4
+
+```
+context_parallel_size=4
+```
+
+**Pattern 5:** Setting save_compressed: true in your configuration enables saving models in a compressed format, which: - Reduces disk space usage by approximately 40% - Maintains compatibility with vLLM for accelerated inference - Maintains compatibility with llmcompressor for further optimization (example: quantization)
+
+```
+save_compressed: true
+```
+
+**Pattern 6:** Note It is not necessary to place your integration in the integrations folder. It can be in any location, so long as it’s installed in a package in your python env. See this repo for an example: https://github.com/axolotl-ai-cloud/diff-transformer
+
+```
+integrations
+```
+
+**Pattern 7:** Handle both single-example and batched data. - single example: sample[‘input_ids’] is a list[int] - batched data: sample[‘input_ids’] is a list[list[int]]
+
+```
+utils.trainer.drop_long_seq(sample, sequence_len=2048, min_sequence_len=2)
+```
+
+### Example Code Patterns
+
+**Example 1** (python):
+```python
+cli.cloud.modal_.ModalCloud(config, app=None)
+```
+
+**Example 2** (python):
+```python
+cli.cloud.modal_.run_cmd(cmd, run_folder, volumes=None)
+```
+
+**Example 3** (python):
+```python
+core.trainers.base.AxolotlTrainer(
+    *_args,
+    bench_data_collator=None,
+    eval_data_collator=None,
+    dataset_tags=None,
+    **kwargs,
+)
+```
+
+**Example 4** (python):
+```python
+core.trainers.base.AxolotlTrainer.log(logs, start_time=None)
+```
+
+**Example 5** (python):
+```python
+prompt_strategies.input_output.RawInputOutputPrompter()
+```
+
+## Reference Files
+
+This skill includes comprehensive documentation in `references/`:
+
+- **api.md** - Api documentation
+- **dataset-formats.md** - Dataset-Formats documentation
+- **other.md** - Other documentation
+
+Use `view` to read specific reference files when detailed information is needed.
+
+## Working with This Skill
+
+### For Beginners
+Start with the getting_started or tutorials reference files for foundational concepts.
+
+### For Specific Features
+Use the appropriate category reference file (api, guides, etc.) for detailed information.
+
+### For Code Examples
+The quick reference section above contains common patterns extracted from the official docs.
+
+## Resources
+
+### references/
+Organized documentation extracted from official sources. These files contain:
+- Detailed explanations
+- Code examples with language annotations
+- Links to original documentation
+- Table of contents for quick navigation
+
+### scripts/
+Add helper scripts here for common automation tasks.
+
+### assets/
+Add templates, boilerplate, or example projects here.
+
+## Notes
+
+- This skill was automatically generated from official documentation
+- Reference files preserve the structure and examples from source docs
+- Code examples include language detection for better syntax highlighting
+- Quick reference patterns are extracted from common usage examples in the docs
+
+## Updating
+
+To refresh this skill with updated documentation:
+1. Re-run the scraper with the same configuration
+2. The skill will be rebuilt with the latest information