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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 25 Sep 2026
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Run Claude Code programmatically changedheadless

Nearest release: v2.1.283, published 4 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 25 Sep 2026 23:42 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 26 Sep 2026 00:07 UTC.

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First seen 14 Aug 2026 this site's first read of the page
Recorded edits24to this page, all time

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226226 
227227Use the plugin fields in the `system/init` event to catch a plugin that didn't load:
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229| Field | Type | Description |
230| --------------- | ----- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
231| `plugins` | array | plugins that loaded successfully, each with `name` and `path` |
232| `plugin_errors` | array | plugin load-time errors, each with `plugin`, `type`, and `message`. Includes unsatisfied dependency versions and `--plugin-dir` load failures such as a missing path or invalid archive. Affected plugins are demoted and absent from `plugins`. The key is omitted when there are no errors |
229| Field | Type | Description |
230| --------------- | ----- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
231| `plugins` | array | plugins that loaded successfully, each with `name` and `path` |
232| `plugin_errors` | array | plugin load-time errors, each with `plugin`, `type`, and `message`. Includes unsatisfied dependency versions and `--plugin-dir` load failures such as a missing path or invalid archive. A plugin that didn't load is absent from `plugins`. The key is omitted when there are no errors |
233 
234When a `--plugin-dir` directory or archive itself fails to load, its `plugin_errors` entry includes the resolved absolute path as `path`. Use it to tell which of several `--plugin-dir` values failed. The `path` field requires Claude Code v2.1.283 or later.
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234236Use the MCP server fields the same way. When you pass [`--mcp-config`](/docs/en/cli-reference#cli-flags) with `-p`, Claude Code waits for still-pending servers before running the first turn, up to the [`MCP_TIMEOUT`](/docs/en/env-vars) startup timeout, 30 seconds by default. A remote server with a [cached tool list](/docs/en/agent-sdk/mcp#connection-timing) skips the wait, shows `pending` in `system/init`, and connects on its first tool call. The wait requires Claude Code v2.1.221 or later.
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