Subscription Videos Metadata
EfficientStreet/youtube-subscriptions-ingest
Pull metadata from YouTube subscription videos into a second-brain vault as a real cross-linked knowledge graph — not just a flat archive.
Clean a raw transcript before ingestion: punctuate, paragraph, label speakers, fix mistranscribed technical terms, and split long recordings by topic.
Install Second Brain Transcript
$ npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install undefined-ui/second-brain-os second-brain-transcript --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/undefined-ui/second-brain-os.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/second-brain-transcript .claude/skills/second-brain-transcript && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "second-brain-transcript" agent skill from https://github.com/undefined-ui/second-brain-os/tree/main/skills/second-brain-transcript into .claude/skills/second-brain-transcript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "second-brain-transcript", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/undefined-ui/second-brain-os/tree/main/skills/second-brain-transcriptType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install undefined-ui/second-brain-os second-brain-transcript --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/undefined-ui/second-brain-os.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/second-brain-transcript .agents/skills/second-brain-transcript && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "second-brain-transcript" agent skill from https://github.com/undefined-ui/second-brain-os/tree/main/skills/second-brain-transcript into .agents/skills/second-brain-transcript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "second-brain-transcript", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install undefined-ui/second-brain-os second-brain-transcript --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/undefined-ui/second-brain-os.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/second-brain-transcript .cursor/skills/second-brain-transcript && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "second-brain-transcript" agent skill from https://github.com/undefined-ui/second-brain-os/tree/main/skills/second-brain-transcript into .cursor/skills/second-brain-transcript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "second-brain-transcript", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/undefined-ui/second-brain-os.git --path skills/second-brain-transcript--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install undefined-ui/second-brain-os second-brain-transcript --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/undefined-ui/second-brain-os.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/second-brain-transcript .gemini/skills/second-brain-transcript && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "second-brain-transcript" agent skill from https://github.com/undefined-ui/second-brain-os/tree/main/skills/second-brain-transcript into .gemini/skills/second-brain-transcript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "second-brain-transcript", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install undefined-ui/second-brain-os second-brain-transcriptInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/undefined-ui/second-brain-os.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/second-brain-transcript .github/skills/second-brain-transcript && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "second-brain-transcript" agent skill from https://github.com/undefined-ui/second-brain-os/tree/main/skills/second-brain-transcript into .github/skills/second-brain-transcript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "second-brain-transcript", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install undefined-ui/second-brain-os second-brain-transcript --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/undefined-ui/second-brain-os.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/second-brain-transcript .opencode/skills/second-brain-transcript && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "second-brain-transcript" agent skill from https://github.com/undefined-ui/second-brain-os/tree/main/skills/second-brain-transcript into .opencode/skills/second-brain-transcript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "second-brain-transcript", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
second-brain-transcript- GitHub stars
- 999
- Token cost
- ~504 tokens
- SKILL.md length
- 199 words
- Files
- 1
- Skills in repo
- 23
- Repo updated
- First seen
- Licence
- MIT
At a glance
Clean a raw transcript before ingestion: punctuate, paragraph, label speakers, fix mistranscribed technical terms, and split long recordings by topic.
- Works in 6 steps: Punctuate and paragraph. Sentence… → Label speakers where they change. In an… → Fix technical terms. Auto-captions… → …
- The user drops an auto-generated transcript
- SKILL.md covers Core rule, Workflow, Output format and Calibration
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Second Brain Transcript is an agent skill from undefined-ui/second-brain-os. Clean a raw transcript before ingestion: punctuate, paragraph, label speakers, fix mistranscribed technical terms, and split long recordings by topic. Use this skill when the user drops an auto-generated transcript, subtitle file, podcast or lecture transcript, meeting recording text, or asks to process a video or audio source. Do NOT use for text that is already prose, for summarising a transcript, or for the ingestion itself.
Its SKILL.md is about 500 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Knowledge Management, covering Transcription, Second brain and Video and podcast notes. The repository describes itself as: An AI second brain that maintains itself. Full guide, starter vault, agent skills and scripts for a self-organizing knowledge base in Claude Code and Obsidian. The licence is MIT.
When your agent uses it
- The user drops an auto-generated transcript
- Lecture transcript
- Meeting recording text
- Asks to process a video
Example prompts
- “/second-brain-transcript”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Punctuate and paragraph. Sentence boundaries first, then paragraphs at
- Label speakers where they change. In an interview this is most of the
- Fix technical terms. Auto-captions mangle proper nouns and jargon
- Keep coarse timestamps every few minutes, so a claim on a wiki page can
- Propose split points if the recording covers separate topics. A
- Write frontmatter: title, channel or speaker, URL, date.
What it can do on your machine
Read from SKILL.md and the folder at commit d6861cc. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Second Brain Transcript loads about 504 tokens when it runs. Until then it costs about 114 tokens; SKILL.md has 199 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from undefined-ui/second-brain-os at commit d6861cc, republished under its MIT licence (© undefined-ui). 199 words, ~504 tokens.
Download SKILL.mdSave it as
.claude/skills/second-brain-transcript/SKILL.md (or your agent's skills folder).- name
- second-brain-transcript
- description
- Clean a raw transcript before ingestion: punctuate, paragraph, label speakers, fix mistranscribed technical terms, and split long recordings by topic. Use this skill when the user drops an auto-generated transcript, subtitle file, podcast or lecture transcript, meeting recording text, or asks to process a video or audio source. Do NOT use for text that is already prose, for summarising a transcript, or for the ingestion itself.
Clean a transcript
Concept pages built from unpunctuated caption dumps are noticeably worse, because the model spends its attention reconstructing sentence boundaries instead of understanding claims.
Core rule
Clean, never summarise. Nothing is cut. This is a formatting pass on the record, and the record has to stay faithful.
Workflow
- Punctuate and paragraph. Sentence boundaries first, then paragraphs at topic shifts.
- Label speakers where they change. In an interview this is most of the value.
- Fix technical terms. Auto-captions mangle proper nouns and jargon consistently. Flag anything you could not resolve rather than guessing.
- Keep coarse timestamps every few minutes, so a claim on a wiki page can be verified in ten seconds instead of a rewatch.
- Propose split points if the recording covers separate topics. A three-hour podcast is not one source.
- Write frontmatter: title, channel or speaker, URL, date.
Output format
The cleaned transcript, then:
Cleaned: <source>
Speakers labelled: <n>
Terms corrected: <list>
Uncertain: <list of what could not be resolved>
Suggested splits: <topics with timestamps, or none>Calibration
Never drop filler that carries meaning, such as hedging or a speaker correcting themselves. Those are exactly what distinguish a claim from an aside.
If the transcript is too garbled to clean reliably, say so and recommend re-pulling it rather than producing a plausible reconstruction.
© undefined-ui, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/second-brain-transcript of undefined-ui/second-brain-os.
Open the folder on GitHubat commit d6861cc
Compare with similar skills
Second Brain Transcript next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Second Brain Transcript this skillundefined-ui/second-brain-os | 999 | — | ~504 | Automated safety check: Pass | MIT | |
| Subscription Videos MetadataEfficientStreet/youtube-subscriptions-ingest | 178 | — | ~7.1k | Automated safety check: Notes | MIT | |
| Youtube FetcherJimmySadek/youtube-fetcher-to-markdown | 485 | — | ~1.8k | Automated safety check: Pass | MIT | |
| Video Lenskar2phi/video-lens | 112 | — | ~8.2k | Automated safety check: Notes | MIT | |
| Youtube Transcript Extractor API Skillbrowser-act/skills | 6.1k | 1 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Youtube Transcriptintellectronica/agent-skills | 295 | 2 repos | ~394 | Automated safety check: Pass | CC0-1.0 |
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Youtube Fetcher
JimmySadek/youtube-fetcher-to-markdown
Retrieve YouTube transcripts and subtitles, summarize or analyze what was said, or save an Obsidian-ready Markdown knowledge-base note with captions, creator metadata, chapters, language, and source…
Video Lens
kar2phi/video-lens
Fetch a YouTube transcript and generate an executive summary, key points, and timestamped topic list as a polished HTML report.
Youtube Transcript Extractor API Skill
browser-act/skills
This skill helps users automatically extract YouTube video transcripts and metadata via the BrowserAct API.
Youtube Transcript
intellectronica/agent-skills
Extract transcripts from YouTube videos. An agent skill from intellectronica/agent-skills.
Timestamped Video Summary
cnfjlhj/ai-collab-playbook
Generate a detailed, professional video content summary from timestamped subtitles/transcripts (e.g., lines starting with 00:00 / 1:23:45).
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Harness Audit
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Audit an agent's harness against the four rings: containment, guides, sensors, permissions.
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Related
Categories
Questions about Second Brain Transcript
What does Second Brain Transcript do?
Clean a raw transcript before ingestion: punctuate, paragraph, label speakers, fix mistranscribed technical terms, and split long recordings by topic. Second Brain Transcript is an agent skill from undefined-ui/second-brain-os. Clean a raw transcript before ingestion: punctuate, paragraph, label speakers, fix mistranscribed technical terms, and split long recordings by topic.
When should I use Second Brain Transcript?
Second Brain Transcript fits situations like: the user drops an auto-generated transcript; lecture transcript; meeting recording text; asks to process a video.
How do I install Second Brain Transcript in Claude Code?
Run `npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a claude-code`. Or copy the skill folder (skills/second-brain-transcript in undefined-ui/second-brain-os) into .claude/skills/second-brain-transcript in your project. Claude Code loads it when a task matches its description.
How do I install Second Brain Transcript in Codex?
Run `npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a codex`. Or copy the skill folder (skills/second-brain-transcript in undefined-ui/second-brain-os) into .agents/skills/second-brain-transcript in your project. Codex loads it when a task matches its description.
Can I use Second Brain Transcript in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add undefined-ui/second-brain-os --skill second-brain-transcript -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/second-brain-transcript, .gemini/skills/second-brain-transcript, .github/skills/second-brain-transcript and .opencode/skills/second-brain-transcript in your project.
What does Second Brain Transcript need to run?
SKILL.md names no scripts, command-line tools or credentials: Second Brain Transcript is instructions for the agent only.
Does Second Brain Transcript access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Second Brain Transcript safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Second Brain Transcript use?
Second Brain Transcript is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Second Brain Transcript use?
About 504 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Second Brain Transcript?
Skills that share tags, products or a category with Second Brain Transcript: Subscription Videos Metadata (EfficientStreet/youtube-subscriptions-ingest, 178 stars), Youtube Fetcher (JimmySadek/youtube-fetcher-to-markdown, 485 stars), Video Lens (kar2phi/video-lens, 112 stars) and Youtube Transcript Extractor API Skill (browser-act/skills, 6.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Second Brain Transcript?
undefined-ui (a GitHub user) maintains it in undefined-ui/second-brain-os, which has 999 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on September 29, 2026.
Source: undefined-ui/second-brain-os on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.