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upstream: claude code updates 2026-03-18 #9

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16 changes: 16 additions & 0 deletions docs/guide.md
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Expand Up @@ -89,6 +89,22 @@ CLAUDE.md is the single most important file in your project for shaping claude's

typescript monorepo. pnpm workspaces. vitest for testing.



**advanced: `<important if>` tags**

for large CLAUDE.md files, prioritize critical context with `<important if>` tags:

```markdown
<important if>
working on auth
or touching token validation
</important if>
token validation always uses HMAC-SHA256, never MD5
```

climate context before sending the prompt, keeping the most relevant sections at the front of the window. useful when your CLAUDE.md exceeds 300 lines and attention matters.

## structure
- packages/api/ -- express backend
- packages/web/ -- next.js frontend
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4 changes: 3 additions & 1 deletion docs/resources.md
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Expand Up @@ -19,8 +19,10 @@ curated external resources for claude code. these are genuinely useful -- not an

## community repos

## community repos

- [hesreallyhim/awesome-claude-code](https://github.com/hesreallyhim/awesome-claude-code) -- the biggest curation hub, comprehensive links and tools
- [shanraisshan/claude-code-best-practice](https://github.com/shanraisshan/claude-code-best-practice) -- deep reports and analysis on effective patterns
- [shanraisshan/claude-code-best-practice](https://github.com/shanraisshan/claude-code-best-practice) -- deep reports and analysis on effective patterns. recently added `<important if>` tags for CLAUDE.md context prioritization

## blogs & analysis

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