Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add fortunto2/solo-factory --skill index-youtubegit clone --depth 1 https://github.com/fortunto2/solo-factoryWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/fortunto2/solo-factory/index-youtube)<a href="https://agentmods.dev/skills/fortunto2/solo-factory/index-youtube"><img src="https://agentmods.dev/badge/skills/fortunto2/solo-factory/index-youtube/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/fortunto2/solo-factory/index-youtube"><img src="https://agentmods.dev/badge/skills/fortunto2/solo-factory/index-youtube.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00034 | $0.01273 |
| Opus 5 | $0.00017 | $0.00636 |
| Sonnet 5 | $0.00007 | $0.00255 |
| Haiku 4.5 | $0.00003 | $0.00127 |
Grade A, and why
solo-index-youtube scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/index-youtube
Index YouTube video transcripts into a searchable knowledge base. Supports two modes depending on available tools.
Prerequisites
Check that yt-dlp is available:
which yt-dlp || echo "MISSING: install yt-dlp (brew install yt-dlp / pip install yt-dlp / pipx install yt-dlp)"
Arguments
Parse $ARGUMENTS for channel handles or "all":
- If empty or "all": index all channels (from config or ask user)
- If one or more handles: index only those channels (e.g.,
GregIsenberg ycombinator) - Optional flags:
-n <limit>(max videos per channel, default 10),--dry-run(parse only)
Mode Detection
Check which mode is available:
Mode 1: With solograph MCP (recommended)
If MCP tools source_search, source_list, source_tags are available, use solograph for indexing and search.
Setup (if not yet installed):
# Install solograph
pip install solograph
# or
uvx solograph
Indexing via solograph CLI:
# Single channel
solograph-cli index-youtube -c GregIsenberg -n 10
# Multiple channels
solograph-cli index-youtube -c GregIsenberg -c ycombinator -n 10
# All channels (from channels.yaml in solograph config)
solograph-cli index-youtube -n 10
# Dry run (parse only, no DB writes)
solograph-cli index-youtube --dry-run
If solograph-cli is not on PATH, try:
uvx solograph-cli index-youtube -c <handle> -n 10
Verification via MCP:
source_list— check that youtube source appearssource_search("startup idea", source="youtube")— test semantic searchsource_tags— see auto-detected topics from transcriptssource_related(video_id)— find related videos by tags
Mode 2: Without MCP (standalone fallback)
If solograph MCP tools are NOT available, use yt-dlp directly to download transcripts and analyze them.
Step 1: Download video list
# Get recent video URLs from a channel
yt-dlp --flat-playlist --print url "https://www.youtube.com/@GregIsenberg/videos" | head -n 10
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 156 lines · 34 tokens per session scan A e27e7437e321
solo-index-youtube is a skill published in the GitHub repository fortunto2/solo-factory (18 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 1,273 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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