Wiki

Name: Wiki
Author: yeachan-heo

yeachan-heo/oh-my-claudecode

295 installs
38.3k repo stars
Updated August 4, 2026
yeachan-heo/oh-my-claudecode

Creates and maintains a persistent markdown knowledge base within a Claude session, supporting ingest of multi-page notes and keyword/tag-based querying across accumulated project knowledge.

About

Wiki is a persistent, self-maintained markdown knowledge base skill for Claude Code that lets agents ingest and query project knowledge across sessions. Builders use it to capture decisions, patterns, and context so they are not rediscovered from scratch on the next session. It supports multi-page ingestion and tag-based search with cited snippet responses.

Persistent markdown knowledge base inspired by Karpathy LLM Wiki
Ingest operation updates multiple wiki pages in one call
Query operation returns keyword/tag-matched snippets with citations
Scoped to project session for living documentation
Part of oh-my-claudecode suite with 36.5K GitHub stars

Wiki by the numbers

295 all-time installs (skills.sh)
+7 installs in the week ending Jul 27, 2026 (Skillselion tracking)
Ranked #457 of 1,879 Documentation skills by installs in the Skillselion catalog
Data as of Aug 5, 2026 (Skillselion catalog sync)

npx skills add https://github.com/yeachan-heo/oh-my-claudecode --skill wiki

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Installs	295
repo stars	★ 38.3k
Last updated	August 4, 2026
Repository	yeachan-heo/oh-my-claudecode ↗

What it does

Creates and maintains a persistent markdown knowledge base within a Claude session, supporting ingest of multi-page notes and keyword/tag-based querying across accumulated project knowledge.

Who is it for?

Long-lived projects where accumulated context needs to be queryable across multiple Claude sessions

Skip if: One-off tasks where session memory is not needed

When should I use this skill?

You want to save project decisions or patterns and retrieve them later

What you get

wiki pages
query results with citations

Files

SKILL.mdMarkdownGitHub ↗

Wiki

Persistent, self-maintained markdown knowledge base for project and session knowledge. Inspired by Karpathy's LLM Wiki concept.

Operations

Ingest

Process knowledge into wiki pages. A single ingest can touch multiple pages.

wiki_ingest({ title: "Auth Architecture", content: "...", tags: ["auth", "architecture"], category: "architecture" })

Query

Search across all wiki pages by keywords and tags. Returns matching pages with snippets — YOU (the LLM) synthesize answers with citations from the results.

wiki_query({ query: "authentication", tags: ["auth"], category: "architecture" })

Lint

Run health checks on the wiki. Detects orphan pages, stale content, broken cross-references, oversized pages, and structural contradictions.

wiki_lint()

Quick Add

Add a single page quickly (simpler than ingest).

wiki_add({ title: "Page Title", content: "...", tags: ["tag1"], category: "decision" })

List / Read / Delete

wiki_list()           # Show all pages (reads index.md)
wiki_read({ page: "auth-architecture" })  # Read specific page
wiki_delete({ page: "outdated-page" })    # Delete a page

Log

View wiki operation history by reading .omc/wiki/log.md.

Storage

Pages: .omc/wiki/*.md (markdown with YAML frontmatter)
Index: .omc/wiki/index.md (auto-maintained catalog)
Log: .omc/wiki/log.md (append-only operation chronicle)

Cross-References

Use [[page-name]] wiki-link syntax to create cross-references between pages.

Auto-Capture

At session end, significant discoveries are automatically captured as session-log pages. Configure via wiki.autoCapture in .omc-config.json (default: enabled).