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upstream: official claude code updates 2026-05-22 #151

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4 changes: 4 additions & 0 deletions docs/tips/README.md
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Expand Up @@ -21,3 +21,7 @@ short, standalone claude code tips. each one is a specific technique you can use
| [monitor](./monitor.md)

| [monitor](./monitor.md) | watch background processes, react to output in real time (v2.1.98+, stable as of v2.1.145) |

---

| [code-review](./code-review.md) | detect correctness bugs, post as PR comments (v2.1.147+, replaces `/simplify`) |
6 changes: 6 additions & 0 deletions docs/tips/hooks-v2.md
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Expand Up @@ -16,6 +16,12 @@ hooks come in five flavors now (v2.1.118 added `mcp_tool`). pick the wrong one a





### note on hook conditions with wildcards (v2.1.147+)

v2.1.147 fixed hook `if` conditions. patterns like `PowerShell(git push*)` now match correctly; previously only `PowerShell(*)` worked. if you use wildcard matchers in hook conditions, verify they fire as expected after upgrading.

### effort level in hooks (v2.1.133+)

hooks now receive the active effort setting via two channels:
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6 changes: 6 additions & 0 deletions docs/tips/plugins.md
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Expand Up @@ -124,6 +124,12 @@ then anyone can install:

two steps: add the marketplace (once), then install individual plugins from it.



### note on plugin agent type declarations (v2.1.147+)

v2.1.147 fixed a regression where plugin agents declaring multiple `Agent(...)` types in `tools:` frontmatter would drop all but the last entry. if your plugin defines multiple agent types, verify all are recognized after upgrading.

## when to extract a plugin

the signal is copy-pasting. if you're copying the same hook between projects, it's time for a plugin.
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5 changes: 5 additions & 0 deletions docs/tips/session-length.md
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Expand Up @@ -34,3 +34,8 @@ shorter sessions are more efficient. here's the data.
run `/mine` to check your own session length distribution. if most of your sessions are 2hr+, you're probably working harder than you need to.

[full cost analysis →](../cost.md)


### note on background sessions (v2.1.147+)

v2.1.147 improved background session management (`Ctrl+T` in `claude agents`). pinned background sessions now stay alive when idle and are restarted in place to apply updates. this may affect session length metrics for users running long-lived background agents. check your actual patterns with `/mine` after upgrading.