AB my-play-music-from-yt
Play music on YouTube via browser automation with playwright-cli. Use when the user wants to: (1) play a specific song (e.g. 'play Money Money Money by ABBA') (2) play songs by an artist as a playlist or mix (e.g. 'play Jay Chou's songs') (3) play genre or mood-based music (e.g. 'play relaxing spa music', 'play 60s Chinese oldies') (4) control playback — next, pause, resume, stop, skip ad, change song, close the player. Also handles song/artist name corrections from voice transcription errors.
As a process B 75/100 · Nearly there — weak spots: result and completion, inputs and preconditions
How to improve
- Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
- A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.
Guard findings · 0
✓ No critical or high findings
Files scanned: 4. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
✓ No remarks against the Agent Skills spec
Process rating: all ten parameters 75/100
- 0Result and completion. Does not say what the result is
- 0Inputs and preconditions. Does not say what the process needs to start
- 100Tools and files. Tools declared in frontmatter
- 100Steps. 43 steps
- 100When it triggers. States when to use and when not to
- 100Failures and branches. 2 branches, has a failure section
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 2329 tokens
- 100Running it twice. Mutating operations check current state
- 100Progress reporting. Reports progress
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.
Quality signals
- +5Description has no quoted example phrases that should trigger the skill
- +4Description does not say when NOT to use the skill (false activations)
- +3Output format is not stated: the model decides each time
- +1No license
- +2Single-language instructions
- +3Description length 503: enough signal without eating the budget
- +4Structure: 34 headings
- +3Step-by-step instructions: 43 items
- +4Has examples (19 code blocks)
- +4Reference files are cited in the instructions (2 of 2)
Quality base 70; lint remarks subtract, signals add up to 100. Result: 88.