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training-llms-megatron

Trains large language models (2B-462B parameters) using NVIDIA Megatron-Core with advanced parallelism strategies. Use when training models >1B parameters, need maximum GPU efficiency (47% MFU on H100), or require tensor/pipeline/sequence/context/expert parallelism. Production-ready framework used for Nemotron, LLaMA, DeepSeek.

67

Quality

81%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Quality

Content

72%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

Highly actionable content with excellent progressive disclosure and well-sequenced checklists. The main gaps are mild verbosity from restating the description and explaining known concepts, and implicit rather than explicit validation gates within the training workflows.

Suggestions

Remove the restated description in Quick start and the explanatory line about what expert parallelism does; assume Claude's competence to tighten conciseness.

Add explicit validation gates to the training workflows (e.g., 'If MFU < 40% or memory > 80GB, do not proceed; return to Step 3 to tune parallelism/micro-batch') so checkpoints are pass/fail rather than monitoring-only.

Fold the parallelism 'rules of thumb' that overlap with the config table into the references to reduce inline repetition.

DimensionReasoningScore

Conciseness

The body is mostly efficient and concrete, but it repeats the frontmatter description in the Quick start, explains concepts Claude already knows ('Expert parallelism distributes different experts across GPUs, reducing memory while maintaining capacity'), and could be tightened; it is not a 1 because it is dense with real commands and configs rather than vague prose.

2 / 3

Actionability

Provides fully executable bash scripts and torchrun commands with specific flags, concrete parallelism config tables, and copy-paste-ready fix snippets, matching the 'fully executable code/commands; copy-paste ready' anchor.

3 / 3

Workflow Clarity

Workflows use clear numbered checklists and a monitoring step with target thresholds, plus a troubleshooting section for error recovery, but validation within workflows is monitoring-style and implicit rather than explicit pass/fail gates; for expensive batch training the rubric caps this at 2 without explicit validation checkpoints.

2 / 3

Progressive Disclosure

The body is a clear overview that signals four real, one-level-deep reference files (parallelism-guide.md, benchmarks.md, production-examples.md, training-recipes.md) with descriptive labels, keeping advanced detail out of SKILL.md.

3 / 3

Total

10

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12

Passed

Description

90%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, distinctive description with an explicit 'Use when' trigger and good natural keyword coverage. Its only weakness is specificity: it leads with a single verb ('Trains') rather than listing several concrete capabilities.

DimensionReasoningScore

Specificity

Names the domain and tool ('Trains large language models (2B-462B parameters) using NVIDIA Megatron-Core with advanced parallelism strategies') but enumerates only one core action rather than a list of multiple distinct concrete actions, matching the 'names domain and some actions, but not comprehensive' anchor.

2 / 3

Completeness

Clearly states what it does (trains LLMs with Megatron-Core parallelism) and has an explicit 'Use when training models >1B parameters, need maximum GPU efficiency... or require tensor/pipeline/sequence/context/expert parallelism' trigger, satisfying both what and when.

3 / 3

Trigger Term Quality

Covers natural terms a practitioner would say — 'training models >1B parameters', 'tensor/pipeline/sequence/context/expert parallelism', '47% MFU on H100', and model names (Nemotron, LLaMA, DeepSeek) — giving good coverage of likely user phrasings.

3 / 3

Distinctiveness Conflict Risk

The niche is highly specific — NVIDIA Megatron-Core, 2B-462B parameter scale, named parallelism strategies — making it unlikely to trigger for unrelated skills.

3 / 3

Total

11

/

12

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
OpenLAIR/dr-claw
Reviewed

Table of Contents

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