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+# Ideas Wiki — Schema
+
+this wiki collects and synthesizes all of harrison's project ideas, product ideas, and big ideas. sources are primarily ideaflow notes tagged with idea-related hashtags, plus obsidian `ideas/` folder and any idea-tagged apple notes.
+
+mutually exclusive with the notes wiki — if it's an idea, it lives here; if it's not, it lives there.
+
+## page types
+
+### idea
+a single project/product idea, potentially synthesized from multiple captures.
+- frontmatter: `type: idea`, `title`, `tags`, `status` (raw|explored|in-progress|built|abandoned), `first_captured`, `sources`
+
+### idea-cluster
+a group of related ideas that share a theme or problem space.
+- frontmatter: `type: idea-cluster`, `title`, `tags`, `ideas` (list of linked idea pages)
+
+### source-summary
+a 1:1 summary of a source document.
+- frontmatter: `type: source-summary`, `title`, `source_path`, `source_origin`, `date`
+
+## page format
+
+```markdown
+---
+type: <page-type>
+title: <title>
+tags: [<tags>]
+status: <status>
+first_captured: <iso-date>
+updated: <iso-date>
+sources: [<source-file-paths>]
+---
+
+# <Title>
+
+<compiled truth — what the idea is, why it matters, how it could work, what's been explored. weave [[wikilinks]] into the prose wherever you mention another idea, cluster, or concept that has its own page. link on first mention only, use display text for readability: [[slug|natural text]].>
+
+---
+
+## timeline
+
+- [<date>] <capture or update event>
+```
+
+## ingestion workflow
+
+when a new source is dropped into `sources/`:
+1. read the source fully
+2. write a `source-summary` in `wiki/summaries/`
+3. determine if this matches an existing idea page (same concept, different capture)
+4. if yes: merge into existing idea page, update compiled truth, add timeline entry
+5. if no: create a new idea page
+6. check if the idea fits into an existing cluster or warrants a new one
+7. if the idea became an actual project, note `status: built` and reference which project
+8. update `index.md` and `log.md`
+
+## idea classification tags (from ideaflow)
+
+primary: `#projectidea`, `#newprojectidea`, `#bigprojectidea`
+secondary: any note from obsidian `ideas/` folder, apple notes with idea-like content
+
+## cross-referencing
+
+- weave `[[slug|display text]]` wikilinks inline in prose — first mention only, don't over-link
+- no dedicated "connections" or "see also" sections — if a relationship matters, it belongs in the text
+- link related ideas to each other inline
+- when an idea became a real project, mention it inline with the project name
+- do NOT link to notes wiki — these are separate wikis