Unstaged work

Files with unstaged changes, tracked and untracked:

!git status --porcelain --untracked-files=all | grep -E '^.[^ ]' || true

• If that list is empty, go ahead with the skill.
• If it is not empty, stop.

Reply with exactly this line and nothing else, no file list, no explanation, no preamble:

Stopping - unstaged files detected. Stage them and then invoke this skill again.

Add didactic comments

The user tagged files and folders and named the topics they want to learn. Teach those topics inside those files. Change nothing but comments.

• Comment every call that belongs to topics. Skip the rest of the code: plain python, obvious assignments, imports.
• One comment per call, on the line above it.
• Say what the call does here, on this data. Not what the API does in general.
• End the comment with the doc URL of the exact symbol you commented, deep link included: pandas.DataFrame.groupby, not pandas.
• IF topics is empty, THEN infer them from the imports of the tagged files, and say which ones you picked.
• IF a folder is tagged, THEN comment every source file under it.

Links

• Get the URL from the docs, never from memory. Fetch the page, confirm the anchor names the symbol, then paste the URL.
• IF the anchor does not exist, THEN link the closest page that does and drop the anchor. Never invent a fragment.
• Same symbol used twice in a file: link it once, at the first use.

Format

# {what this call does to this data}, {the argument that matters and why}
# https://{deep link to the symbol}
frame_by_year = sales.groupby("year")

Rules

• Never edit code, names, or order. Comments only.
• Never delete a comment. Rewrite one only if it starts with AI and it is wrong.
• No temporal anchors, no change narration.
• No comment restates the line. # read the file above path.read_text() is noise; explain the encoding, the failure mode, the return type.