# Second Brain Publish > Prepare a subset of the vault for publishing: check opt-in flags, find private material, and report what would leak through links before anything is exported. Use this skill when the user wants to publish notes as a site or digital garden, asks what is safe to make public, or is setting up an export. Do NOT use for exporting a single document, or for running the publishing tool itself. - Skill: `undefined-ui/second-brain-publish` (Agent Skill) - Install (CLI): `npx skillmds@latest add undefined-ui/second-brain-publish` - Raw SKILL.md: https://api.skillmd.com/api/skills/undefined-ui/second-brain-publish/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Docs & Writing - Author: undefined-ui (https://skillmd.com/u/undefined-ui) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/undefined-ui/second-brain-publish --- # Prepare to publish Once something is crawled, it is out. Every check here is cheap; the failure it prevents is permanent. ## Core rule Explicit opt-in only. A page publishes because it says `publish: true`, never because nothing excluded it. ## Workflow 1. **List the opt-in set.** Every page marked for publication. 2. **Follow their links.** A published page linking to a private one either leaks the title or produces a dead link. Report both. 3. **Scan for anything that should never ship:** credentials, other people's private information, confidential work, personal detail in examples. 4. **Check the frontmatter** for fields not meant to be public, such as confidence labels or private source paths. 5. **Report, do not export.** The user runs the build. ## Output format ``` Publishable: pages Links to unpublished pages: [[public page]] -> [[private page]] Flagged content: Frontmatter to strip: Verdict: ``` ## Calibration Err toward flagging. A false positive costs the user ten seconds; a miss is permanent. If the user asks to publish the whole vault, ask what they intend to do about the private material rather than proceeding.