pubmed-database

1# PubMed API
2 
3## Prerequisites
4 
51.  **`uv`**: Read the `uv` skill and follow its Setup instructions to ensure
6    `uv` is installed and on PATH.
72.  **User Notification**: If .licenses/pubmed_database_LICENSE.txt does not
8    already exist in the workspace root directory then (1) prominently notify
9    the user to check the terms at https://pubmed.ncbi.nlm.nih.gov/disclaimer/
10    and https://www.ncbi.nlm.nih.gov/home/about/policies/ and to always check
11    the license of the papers retrieved by the skill for any restrictions, then
12    (2) create the file recording the notification text and timestamp.
133.  **`.env` file**: Make sure the `.env` file exists in your home directory.
14    Create one if it does not exist.
154.  **`NCBI_API_KEY`** (optional): Raises the NCBI E-utilities rate limit from 3
16    to 10 requests/second. The skill works without it, but a key is recommended
17    if the user plans many queries or encounters a 429 error. You can register
18    for a key for free at https://www.ncbi.nlm.nih.gov/account/settings/. You
19    **MUST** use the safe credentials protocol in the `credentials` skill to
20    check for and request this key if this skill looks relevant to the user's
21    request.
225.  **`USER_EMAIL`** (optional): Identifies the caller to NCBI (recommended by
23    their Terms of Use). You **MUST** use the safe credentials protocol in the
24    `credentials` skill to check for and request this credential if this skill
25    looks relevant to the user's request.
26…