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Retrieve structured metadata from any DOI via HTTP content negotiation
Passed 22 of 22 test cases with the skill, and 20 of 22 without it.
2 fixed20 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
Write a curl command to fetch a Chicago author-date formatted citation string for DOI 10.1038/nature14539. What exact style parameter value must be appended to the bibliography Accept header?
| Checked | Without skill | With skill |
|---|---|---|
| The style parameter is set to chicago-author-date. | Passed | Passed |
| The Accept header uses the text/x-bibliography media type. | Missed | Passed |
The instructions your model reads when the skill loads.
Any DOI can return structured metadata in multiple formats through HTTP content negotiation — simply set the Accept header when requesting https://doi.org/{doi}. This is the most universal way to get citation metadata, BibTeX entries, JSON-LD, and RDF from any publisher without needing a specific API. Works for all 300M+ registered DOIs. Free, no authentication.
# Get JSON citation metadata (Citeproc JSON)
curl -LH "Accept: application/vnd.citationstyles.csl+json" \
"https://doi.org/10.1038/nature14539"
# Get BibTeX
curl -LH "Accept: application/x-bibtex" \
"https://doi.org/10.1038/nature14539"
# Get RIS format
curl -LH "Accept: application/x-research-info-systems" \
"https://doi.org/10.1038/nature14539"
# Get formatted citation (APA style)
curl -LH "Accept: text/x-bibliography; style=apa" \
"https://doi.org/10.1038/nature14539"
# Get formatted citation (Chicago style)
curl -LH "Accept: text/x-bibliography; style=chicago-author-date" \
"https://doi.org/10.1038/nature14539"
| Accept Header | Format | Use Case |
|---|---|---|
application/vnd.citationstyles.csl+json | Citeproc JSON | Programmatic metadata |
application/x-bibtex | BibTeX | LaTeX bibliography |
application/x-research-info-systems | RIS | Reference managers |
text/x-bibliography; style=apa | Formatted text | Direct citation |
test cases passed, vs 20 / 22 without
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