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huggingface-tokenizers

Fast BPE/WordPiece tokenization and custom vocab training.

50

Quality

57%

Does it follow best practices?

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SecuritybySnyk

Passed

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tessl review fix ./optional-skills/mlops/huggingface-tokenizers/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

61%Weight 40%Scale 1-5

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

The body is a well-structured, highly actionable overview with real, clearly-signaled reference files behind it. Its weaknesses are redundancy (performance claims stated three times, algorithm explanations duplicated with references/algorithms.md) and missing validation steps in the custom-tokenizer training workflow.

Suggestions

Consolidate performance claims into the single "Performance benchmarks" section and remove the duplicated speed figures from "When to use" and the Performance bullet block.

Trim the per-algorithm "How it works" explanations in the body to one-liners pointing at references/algorithms.md, keeping only the training code inline.

Add a validation step to the training workflow (e.g., assert special tokens resolve, decode(encode(text)) round-trip check) before saving and wrapping the tokenizer.

DimensionReasoningScore

Conciseness

The body is mostly efficient with dense code examples, but performance claims are repeated in three places ("When to use", the Performance bullet block, and the "Performance benchmarks" section), and the full BPE/WordPiece/Unigram explanations duplicate what references/algorithms.md already provides.

3 / 5

Actionability

Nearly all guidance is copy-paste-ready executable code covering install, load, train, save, batch padding, pipeline components, alignment, and transformers integration; minor gaps exist (the alignment example references an undefined `text` variable, and the batch-padding output assumes [CLS]/[SEP] special tokens with no post-processor configured).

4 / 5

Workflow Clarity

The train-from-scratch path (install, train, save, wrap for transformers) is clearly sequenced, but batch training workflows lack any validation checkpoints (verify special tokens, decode round-trip check, confirm vocab size), which caps workflow clarity at 3 for batch operations.

3 / 5

Progressive Disclosure

All four referenced files (references/training.md, algorithms.md, pipeline.md, integration.md) exist, are one level deep, and are clearly signaled with one-line descriptions in a References section; the main gap is that deep-dive algorithm and pipeline content is inlined in the body rather than delegated to those files.

4 / 5

Total

14

/

20

Passed

Description

53%Weight 40%Scale 1-5

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

The description is concise and names a clear niche with two concrete capabilities, but it has no trigger guidance and misses the natural terms ("tokenizer", "tokenize", "HuggingFace") users would actually say. It reads as a library tagline rather than a skill description optimized for activation.

Suggestions

Add a 'Use when...' clause with concrete triggers, e.g. "Use when training a custom tokenizer, tokenizing large corpora, or when the user mentions BPE, WordPiece, subword tokenization, or HuggingFace tokenizers."

Include natural trigger terms and synonyms users would say — "tokenizer", "tokenize", "train a tokenizer", "subword" — to raise trigger-term coverage.

Broaden the capability list slightly to reflect the skill's actual coverage (load pretrained tokenizers, alignment tracking, transformers/AutoTokenizer integration) without padding.

DimensionReasoningScore

Specificity

"Fast BPE/WordPiece tokenization and custom vocab training" names the domain plus two concrete actions (tokenization, vocab training), but omits other capabilities the skill covers (pretrained loading, alignment tracking, padding/truncation), matching the anchor for 1-2 concrete actions without comprehensiveness.

3 / 5

Completeness

The "what" is clear (fast tokenization and custom vocab training), but there is no "Use when..." clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines.

3 / 5

Trigger Term Quality

Keywords "BPE", "WordPiece", "tokenization", and "vocab" are relevant, but common natural variations users would say — "tokenizer", "tokenize", "train a tokenizer", "HuggingFace", "subword" — are absent, matching the anchor for some relevant keywords missing common variations.

3 / 5

Distinctiveness Conflict Risk

"BPE/WordPiece tokenization" carves a mostly distinct niche with minor overlap risk against adjacent tokenizer skills (SentencePiece, tiktoken), fitting the "mostly distinct" anchor rather than the somewhat-specific anchor at 3.

4 / 5

Total

13

/

20

Passed

Validation

75%

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

Validation — 12 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

skill_md_line_count

SKILL.md is long (521 lines); consider splitting into references/ and linking

Warning

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

frontmatter_unknown_keys

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

Warning

Total

12

/

16

Passed

Repository
NousResearch/hermes-agent
Reviewed

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