| name | slam-add-lecture |
| description | Compress a finished lecture PDF with ghostscript, drop it into slam_slides/, and add a new Lecture NN entry to slam.md. Use this whenever the user says they "finished" or "completed" a new SLAM lecture, asks to "add Lec NN" / "Lecture NN을 추가", supplies a path to LecNN_SLAM_for_everyone.pdf, or otherwise wants to publish the next lecture on the /slam/ page. This is the canonical end-to-end "publish a new lecture" workflow for this repo — prefer it over running the gs command and editing slam.md by hand. |
Add a new SLAM lecture (compress PDF + edit slam.md)
This skill captures the full publish-a-new-lecture workflow: the source PDF lives in Dropbox, gets compressed by ghostscript, lands in the repo at slam_slides/LecNN_SLAM_for_everyone.pdf, and gets a <div class="slam-section"> block inserted into slam.md so the toggle, language pairs, and link buttons all line up with the rest of the page.
When to use
- User finished a new lecture and wants it published.
- User points at
LecNN_SLAM_for_everyone.pdf (or a math supplementary PDF) and asks to add it.
- User says something like "Lec 10도 추가하자" / "compress and add Lec NN".
If the user only wants the slam.md edit (e.g., refreshing sub-items for a deck that's already in slam_slides/), use slam-lecture-entry directly instead.
Inputs
Steps
-
Read the PDF. Use the Read tool with pages: "1-N" to scan all slides. The sub-items for slam.md come from the top-bar section markers in the deck (the thin Beamer-style category bar above each content slide). See slam-lecture-entry for the detailed formatting rules — they apply here.
-
Compress with ghostscript. Use this exact command — the /prepress quality preserves figure clarity, which matters for the math-heavy decks:
gs -sDEVICE=pdfwrite \
-dCompatibilityLevel=1.4 \
-dPDFSETTINGS=/prepress \
-dPrinted=false \
-dNOPAUSE -dQUIET -dBATCH \
-sOutputFile="/Users/fudxo/git/LimHyungTae.github.io/slam_slides/LecNN_SLAM_for_everyone.pdf" \
"/Users/fudxo/Library/CloudStorage/Dropbox/!lectures/모두를 위한 SLAM/slides/LecNN_SLAM_for_everyone.pdf"
The output goes directly into slam_slides/ (no underscore prefix — Jekyll excludes _-prefixed folders from the build). Verify the size after — typical compressed Lec PDFs are 1.3–5 MB.
-
Edit slam.md. Insert a new <div class="slam-section"> block immediately before the "More lectures coming soon..." section (search for 강의는 계속 추가될 예정입니다 to locate it). Follow the layout rules from slam-lecture-entry:
- One
<h3> with bilingual .lang-ko + .lang-en title.
- One
<li> per top-bar segment.
- Video + Slide buttons on the first
<li> only.
- Slide href:
/slam_slides/LecNN_SLAM_for_everyone.pdf (local path, not Dropbox).
- Video href: real YouTube URL if supplied, otherwise placeholder.
-
For supplementary decks (e.g., LecNN_math_supplementary.pdf): add a single extra <li> to the existing Lecture NN block with <span class="lecture-num">Supp.</span> and only a Slide button (no Video).
-
Commit and push. Stage both the new PDF and slam.md. Use a commit message like Add Lecture NN: <Title>. Push so GitHub Pages rebuilds.
Do not
- Don't put the PDF in
_slam_slides/ (leading underscore → Jekyll excludes it from the published site).
- Don't link to Dropbox in slam.md anymore — the canonical slide URL is now the local
/slam_slides/... path.
- Don't fabricate a YouTube URL when the lecture isn't recorded yet — the page hides Video buttons in English mode anyway, and Korean viewers should see the placeholder rather than a dead link.
- Don't restructure the existing toggle/CSS or reorder existing lectures.
Verify
After committing:
- Run
grep -n "Lecture NN" slam.md — exactly one block should match.
- Confirm the slide button href points at
/slam_slides/LecNN_...pdf (no underscore prefix on the folder).
- After push, give GitHub Pages 1–3 min, then hard-refresh the live
/slam/ page.
