Capture a today-I-learned in seconds and compound it into the wiki. Triggers on - TIL, til, today I learned, I just learned, I figured out, note this down, learned something.
Installation
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Capture a today-I-learned in seconds and compound it into the wiki. Triggers on - TIL, til, today I learned, I just learned, I figured out, note this down, learned something.
TIL
The fastest loop in the system: the user learned something, say it once, it is kept forever and becomes searchable knowledge.
Process
Take what the user said ("TIL: pg indexes are not used when the column is wrapped in a function") and expand it minimally from _templates/til.md: the thing in their words, context if given, why it matters, source if given. Do not pad; a 5-line TIL is perfect.
File it in the wiki:
If a wiki page for the topic exists (check wiki/index.md), append the TIL to that page under a ## TILs section and update the page's updated: date.
If not, create wiki/<topic>.md with frontmatter (type: concept, tags, created, updated), the TIL as its first content, and [[wikilinks]] to related pages.
Update wiki/index.md if a page was created, and append one line to wiki/log.md.
Add a one-line entry to today's daily log (Log section); create today's file if needed.
Confirm in one line: where it went and what page it grew.
Why this matters (tell the user once, early)
TILs compound. Ten TILs is a habit; a hundred is a personal knowledge base no course can sell you; and every one is raw material for a build-in-public post (content-draft mines them).
Rules
Capture speed beats structure: never ask more than ONE clarifying question, and only when the TIL is genuinely ambiguous.
The TIL stays in the user's words; clean up grammar at most.