BC video2podcast
Convert bookmarked videos from YouTube, X (Twitter), and other sites into a podcast RSS feed hosted on Cloudflare R2. Use when the user says things like "add this to my podcast feed", "add this video to my podcast", "sync my podcast feed", "put this YouTube video in my podcast", or "subscribe to this playlist as a podcast". Manages a persistent episode list and hosts audio files + feed.xml on Cloudflare R2.
As a process C 56/100 · Has gaps — weak spots: result and completion, inputs and preconditions, running it twice
What is at stake
The skill contains fragments that, in the wrong hands, cost money or data. Below: what the installer risks and what the author should do.
The instructions or scripts send data out: environment variables, keys, file contents, chat history. You may never notice, because the agent performs the upload as "part of the task".
If the upload is not needed for the task, remove it: catalogs flag such skills and delist them. If it is needed, name the destination explicitly, say what leaves the machine, and give the user a switch.
How to improve
- Address the high-severity findings: each costs 18 safety points. If one is a false positive, add the rule id to guard.allow in spec.yaml.
- 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 · 3
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high Exfiltration
intent-browser-credential-storeSKILL.md:261Accesses a browser credential / cookie storeyt-dlp --cookies-from-browser chrome "https://x.com/user/status/..."
Medium and low: 2
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medium Exfiltration
intent-browser-credential-storeSKILL.md:59Accesses a browser credential / cookie store (quoted — discussed, not commanded)"description": "Browser to read cookies from for age-restricted/SABR-protected videos (safari, chrome, firefox, or none). Default: safari. Cookies are read locally and never transmitted.",
quoted -
medium Exfiltration
intent-browser-credential-storeSKILL.md:254Accesses a browser credential / cookie store (the skill's own vendor host)yt-dlp --cookies-from-browser chrome "https://youtube.com/watch?v=..."
vendor-host
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 56/100
- 0Result and completion. Does not say what the result is
- 0Inputs and preconditions. Does not say what the process needs to start
- 30Running it twice. 7 mutating operations with no state check
- 50Failures and branches. 0 branches, has a failure section
- 60Tools and files. Uses tools (bash, python) that frontmatter does not declare
- 70When it triggers. States when to use, but not when not to
- 100Steps. 23 steps
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 1299 tokens
- 100Progress reporting. Reports progress
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
- +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
- +5Description quotes 5 example trigger phrases
- +3Description length 410: enough signal without eating the budget
- +4Structure: 18 headings
- +3Step-by-step instructions: 23 items
- +4Has examples (13 code blocks)
- +3All 1 scripts are documented
Quality base 70; lint remarks subtract, signals add up to 100. Result: 92.