Content to Second Brain
A 90-minute podcast might contain 8 minutes of genuinely original thinking, buried in verbal filler, social scaffolding, and the same point said three ways. Content to Second Brain finds those 8 minutes and turns them into linked notes.
What this skill does
Media consumption feels like learning. You listen to a two-hour podcast, nod along, feel smarter, and three weeks later remember you liked it but can't recall a single specific idea. That's entertainment, not learning. Learning happens when ideas get extracted, connected, and stored where you can find them again — and the particular challenge with podcasts, talks, and lectures is that the signal is buried in filler. "So, like, basically, you know, right?" is not insight. "That's a great question" is not insight. The skill cleans aggressively and keeps only what's worth reading in six months.
Different formats need different processing. YouTube talks are usually prepared, so the signal-to-noise ratio is higher — look for the framework being presented and the counterintuitive claims. Podcasts are conversational and ideas emerge half-formed — the gold is in the two or three moments where the guest says something they haven't said on fifteen other shows, plus any genuine disagreement between host and guest. Lectures are structured but tempt you into stenography — extract the concepts and connections, not the pedagogical scaffolding. Webinars are mostly noise; many yield zero ideas, and saying so is the value.
Each extracted idea becomes a note with the claim stated in your words (verbal tics removed), a one-line context anchor for where it appeared in the recording, the evidence behind it, and suggested connections. Timestamps are preserved when available — so you can relisten to the exact moment without re-consuming the whole thing. For interviews and panels, speakers get attributed, and disagreements between speakers become their own notes naming both positions.
The output also includes a source note rating the content honestly: worth-it, mixed, or skip. If a two-hour conversation yielded one minor insight, the source note says so and points to the alternative. If the speaker was clearly recycling material from their book tour, that section gets flagged with timestamps so you can skip it. The honest verdict is the part future-you needs most — without it, every podcast looks equally worth a second listen, and none of them are.
When this triggers
- ·You've got a YouTube or podcast transcript and want the actual ideas pulled out
- ·You're processing a lecture or course and don't want to end up transcribing it
- ·You watched a 2-hour interview and need to know if anything from it is worth keeping
- ·You want speaker attribution preserved across an interview or panel
- ·You want an honest verdict on whether a piece of media was worth your time
Example
Trigger
User pastes a 90-minute podcast transcript and says: 'Extract anything useful.'
Output
Source rating: worth-it (3 ideas extracted from 14,000 words). Skip the first 22 minutes — introductions and book promotion. IDEA NOTE 1 — "Hiring for slope, not intercept" Speaker: guest (24:18) Claim: predicting performance from current skill misses the variable that compounds. Rate of learning matters more. Evidence: 6 years of internal data at his company. Moderate. Connects to: [[Deliberate Practice]], [[Compounding]]. Open thread: does this hold below senior level? IDEA NOTE 2 — [...] IDEA NOTE 3 — [...] What to skip: the 30-minute stretch on his book is rehearsed material from 14 other appearances. The Q&A at the end is the freshest thinking — start there if relisting.
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- 192-line SKILL.md, ready to drop into ~/.claude/skills/
- Tested through 3 Karpathy-loop iterations (versions v1.0.0 → v1.3.0)
- Triggers automatically when relevant — no command to remember
- Lifetime updates as the skill is refined further
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