understand-explain
Use when you need a deep-dive explanation of a specific file, function, or module in the codebase
48
52%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./understand-anything-plugin/skills/understand-explain/SKILL.mdQuality
Discovery
40%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 provides a reasonable 'when' trigger but lacks specificity about what the skill actually does beyond a vague 'deep-dive explanation.' It uses second person voice ('you need') instead of the required third person, and misses natural trigger terms users would commonly use when seeking code explanations. The description would benefit significantly from listing concrete actions and adding more user-facing keywords.
Suggestions
Add specific concrete actions the skill performs, e.g., 'Analyzes code structure, traces dependencies, explains logic flow, and documents function signatures and parameters.'
Include more natural trigger terms users would say, such as 'explain code', 'how does this work', 'walk me through', 'what does this function do', 'understand this code'.
Rewrite in third person voice: 'Provides deep-dive explanations of specific files, functions, or modules...' instead of 'Use when you need...'
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | The description uses vague language like 'deep-dive explanation' without specifying concrete actions. It doesn't list what the skill actually does (e.g., trace dependencies, explain logic, document parameters). | 1 / 3 |
Completeness | It provides a 'when' clause ('Use when you need a deep-dive explanation...') but the 'what' is weak — it only vaguely says 'deep-dive explanation' without specifying what actions the skill performs. Additionally, it uses second person ('you need') which is penalized per guidelines. | 2 / 3 |
Trigger Term Quality | Contains some relevant terms like 'file', 'function', 'module', and 'codebase' that users might naturally use. However, it misses common variations like 'explain code', 'how does this work', 'walk me through', 'understand', or 'what does this do'. | 2 / 3 |
Distinctiveness Conflict Risk | The scope of 'explaining a file, function, or module' is somewhat specific to code explanation, but could easily overlap with general code review, documentation generation, or code analysis skills. | 2 / 3 |
Total | 7 / 12 Passed |
Implementation
64%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a solid, actionable skill that provides a clear methodology for deep-diving into code components using a knowledge graph. Its main strengths are the concrete, step-by-step search strategy and the well-structured workflow. Weaknesses include the verbose graph structure reference section that could be externalized, and the lack of error handling or fallback guidance when searches yield no results.
Suggestions
Add brief fallback guidance for when grep searches return no results (e.g., 'If the component isn't in the graph, fall back to reading the source file directly and inferring connections from imports').
Consider moving the Graph Structure Reference to a separate file (e.g., GRAPH_SCHEMA.md) and referencing it, keeping SKILL.md focused on the workflow.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The graph structure reference section is useful but somewhat verbose — Claude could infer many of these details from the JSON itself. The 'How to Read Efficiently' tips are reasonable but partially redundant (e.g., 'don't dump the entire graph into context'). The instructions themselves are lean and well-structured. | 2 / 3 |
Actionability | The instructions provide a clear, concrete step-by-step process with specific search strategies (grep for filePath, filter by name fields), specific fields to extract (id, type, summary, tags, complexity), and specific edge directions to follow. The guidance on how to search for file paths vs function notation is particularly actionable. | 3 / 3 |
Workflow Clarity | The 7-step workflow is clearly sequenced and logical, progressing from finding the node to reading source to explaining. However, there are no validation checkpoints — e.g., what if the grep returns no results, what if the node has no edges, what if the filePath doesn't exist. For a read-only operation this is less critical, but error handling guidance is absent. | 2 / 3 |
Progressive Disclosure | The content is reasonably organized with clear sections (Graph Structure Reference, How to Read Efficiently, Instructions), but the graph structure reference is a substantial inline block that could potentially be in a separate reference file. For a skill of this length (~60 lines), the inline approach is borderline acceptable but the structure reference takes up significant space. | 2 / 3 |
Total | 9 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 10 / 11 Passed | |
- Repository
- Lum1104/Understand-Anything
- Commit
26edf61
- Reviewed
Table of Contents
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