Show HN: CodeAlmanac – A Karpathy-style codebase wiki based on conversation content

CodeAlmanac has been released to help AI coding agents learn context that is hard to grasp from code alone, such as design intent, past incident history, key invariants, and cross-file workflows.

Key features are as follows:

• Auto-managed wiki: It exists within the codebase as Plain Markdown, and AI agents scan conversation content to automatically update useful knowledge into the wiki.
• Local execution and security: All wiki operations and scheduled jobs (Sync, Garden, Update) run in the local environment, and can be reviewed via Git just like code changes.
• Supported tools: Currently supports environments using Codex or Claude Code on macOS.
• Automated processes:
  • Sync: Extracts useful knowledge from recent conversations with AI and queues it into the wiki.
  • Garden: Reviews the wiki for content that is outdated, duplicated, or poorly linked.
  • Update: Safely checks for and installs CLI updates.