summarize
Summarize or extract text/transcripts from URLs, podcasts, and local files (great fallback for “transcribe this YouTube/video”).
83
Quality
82%
Does it follow best practices?
Impact
87%
2.63xAverage score across 3 eval scenarios
Discovery
64%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 effectively communicates core capabilities and includes good natural trigger terms, especially the YouTube/video fallback note. However, it lacks an explicit 'Use when...' clause and could be more specific about what distinguishes it from general summarization or text extraction skills.
Suggestions
Add an explicit 'Use when...' clause, e.g., 'Use when the user wants to transcribe, summarize, or extract content from web pages, audio files, podcasts, or video URLs.'
Clarify the scope to improve distinctiveness, e.g., specify supported formats (.mp3, .wav) or platforms (YouTube, Spotify podcasts) to reduce overlap with generic text extraction skills.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names domain (URLs, podcasts, local files) and some actions (summarize, extract text/transcripts), but lacks comprehensive detail about specific capabilities like format handling or output options. | 2 / 3 |
Completeness | Clearly answers 'what' (summarize/extract from various sources) but lacks an explicit 'Use when...' clause. The parenthetical hint about YouTube/video is helpful but doesn't constitute explicit trigger guidance. | 2 / 3 |
Trigger Term Quality | Good coverage of natural terms users would say: 'summarize', 'extract text', 'transcripts', 'URLs', 'podcasts', 'YouTube', 'video', 'transcribe'. The parenthetical note adds valuable trigger terms. | 3 / 3 |
Distinctiveness Conflict Risk | Somewhat specific to transcription/summarization of media content, but 'summarize' and 'extract text' could overlap with general text processing or document skills. The YouTube/video mention helps but scope is still broad. | 2 / 3 |
Total | 9 / 12 Passed |
Implementation
100%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is an excellent skill file that exemplifies token efficiency and actionability. It provides immediate value with copy-paste commands, clear trigger phrases, and well-organized reference sections. The content assumes Claude's competence and focuses only on tool-specific knowledge.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Extremely lean and efficient. No unnecessary explanations of what summarization is or how CLIs work. Every section delivers actionable information without padding. | 3 / 3 |
Actionability | Provides copy-paste ready bash commands for all common use cases. Flags are clearly listed with their options, and environment variable names are explicit. | 3 / 3 |
Workflow Clarity | For a simple CLI wrapper skill, the workflow is clear: run command with appropriate flags. The YouTube transcript guidance includes a sensible decision point (summarize first if huge, then ask about expansion). | 3 / 3 |
Progressive Disclosure | Well-organized with clear sections (Quick start, YouTube specifics, Model/keys, Flags, Config). For a simple CLI skill under 50 lines, no external file references are needed and the structure is appropriate. | 3 / 3 |
Total | 12 / 12 Passed |
Validation
72%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 8 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
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 | 8 / 11 Passed | |
- Reviewed
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