langchain-ai Weekly Newsletter
A parallel-research task. Coordinate; let the researchers do the digging.
1. Pick the genres
- If Jane named genres, use those. Otherwise ask chinook-analyst for the top 4 genres by revenue across the catalogue and feature those.
2. Research in parallel
- Use the code interpreter to get a timestamp for this run:
new Date().toISOString().slice(0, 19).replace(/[:.]/g, "-")(e.g.2026-07-30T14-23-05). Reuse this same value in step 4. Using the full date-time (not just the date) keeps runs from colliding when this is run more than once in a day, e.g. during testing. - For each genre, delegate to a genre-researcher subagent with the
tasktool — fire them all off together so they run in parallel. - Tell each researcher its one genre and a private folder
(
/research/<timestamp>/<genre>/) for raw notes, using this run's timestamp. This keeps each run's scratch files separate so a subagent never finds leftover notes from a prior run. Ask for a single ~120–180 word Markdown segment headed## <Genre>. - Do not research genres yourself — your job is to assemble.
3. Assemble
- Collect the returned segments into one Markdown document:
# This Week in Musictitle- a one-sentence intro
- the genre segments, in order
4. Render and save
- Call
markdown_to_htmlon the assembled Markdown. write_filethe returned HTML to/outputs/newsletter-<timestamp>.html, using the same timestamp from step 2.
Done
Tell Jane where the newsletter was saved and list the genres covered.