How three small skills (YouTube description, LinkedIn post, generate socials) chain into a single command that drafts an entire post-release content set and writes it back into SharePoint columns.
Takeaway 01
Each skill stays narrow; composition is what gives the workflow leverage.
Takeaway 02
A composing skill chains other skills and asks the user clarifying questions.
Takeaway 03
Output writes back to SharePoint columns next to the source file.
The YouTube Description Skill
This skill produces a draft YouTube description from the transcript and suggests several title candidates. The user picks one. The description includes the standard structure the author uses: a hook, a summary, key chapter points.
A skill that "suggests three names" is doing the heavy creative work — the human still chooses. That keeps voice with the author.
Critically, this skill also extracts timestamps from the transcript and formats them as YouTube-style chapter markers. That is a chore the author identified as painful and worth automating.
The LinkedIn Post Skill
The LinkedIn skill was trained on a batch of the author's previous posts. He fed them to Claude, asked Claude to extract his tone, voice, and format, and the resulting pattern is encoded inside the skill. The skill also appends his standard set of links at the bottom of every post.
A skill is the place to encode "do it the way I always do it." Boilerplate, link blocks, formatting conventions — all of it lives inside the skill, not in the author's head.
The LinkedIn skill does not invent content from nothing. It reads the transcript, applies the trained voice pattern, and produces a draft. The author still edits before publishing.
The Generate Socials Composing Skill
Generate Socials is a thin orchestrator. It is simple — it just looks for certain keywords, runs the LinkedIn post skill, runs the YouTube description and title skill, asks the user clarifying questions when needed, and inserts the results into SharePoint columns.
The composing skill is small. The intelligence lives in the leaf skills; the orchestrator just glues them and handles user prompts.
This is the leverage moment. The author selects a video file in SharePoint, says "generate socials for this," and the chain runs: LinkedIn draft, YouTube description, three title candidates, all written back into the file's columns.
Timestamp Extraction From Transcripts
YouTube descriptions need chapter timestamps. The author found doing this by hand painful — he had to scrub the video to find each section boundary, then format it. The skill reads the transcript, identifies topic shifts, and emits formatted timestamp lines.
Transcripts are time-stamped text. That makes them perfect for an LLM to identify chapter breaks — it has both the language signal and the time anchor in one document.
Writing Back to SharePoint Columns
The skills do not produce a Word doc or an email. They write their output directly into SharePoint columns on the same list item as the source file. The LinkedIn draft, the YouTube description, the chosen title — all become column values you can review in the list view.
The SharePoint item is the unit of work. Source file in, generated content alongside it, all in the same row. No copy-paste between apps.
This is not "AI publishes for you." Nothing is posted automatically. Writing back to columns is a staging step — the author copies from the column into LinkedIn or YouTube when he is ready to publish.
Flashcards — Guide 02
02 · Applied
YouTube Description Skill
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A skill that drafts a YouTube description from a transcript, suggests title candidates, and extracts chapter timestamps. The user picks the final title.
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02 · Applied
LinkedIn Post Skill
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A skill trained on the author's prior posts that drafts a LinkedIn post matching his tone, format, and standard footer link block.
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02 · Applied
Generate Socials
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A thin composing skill that detects keywords, runs the LinkedIn and YouTube skills, asks clarifying questions, and writes results back into SharePoint columns.
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02 · Applied
Skill Composition
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A pattern where one skill calls other skills as building blocks. Intelligence lives in the leaf skills; the composer handles routing and user input.
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02 · Applied
Chapter Timestamps
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YouTube chapter markers extracted from the transcript by detecting topic shifts. Replaces manual scrubbing of the video for section boundaries.
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02 · Applied
Write-Back to Columns
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The pattern of saving skill output as column values on the SharePoint list item. Stages drafts for human review; nothing publishes automatically.
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02 · Applied
Clarifying Questions
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A pause in a composing skill where it asks the user for input (e.g. pick a title) before continuing. Keeps the human in the loop on irreversible choices.