Error reference changederrors
Upstream edited this page at 28 Oct 2026 19:31 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 28 Oct 2026 19:37 UTC.
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### Command contains an invisible character
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215215| `Cloud sessions use your claude.ai login`, at the end of a policy denial that names a credential | [Command-line errors](#cloud-sessions-use-your-claude-ai-login) |
216216| `Couldn't verify your organization's policy for cloud sessions` | [Command-line errors](#couldnt-verify-your-organizations-policy-for-cloud-sessions) |
217217| `Cloud sessions aren't available:` followed by why your organization's policy couldn't be loaded | [Command-line errors](#couldnt-verify-your-organizations-policy-for-cloud-sessions) |
218| `Cloud sessions aren't available with this Console sign-in. They need a claude.ai sign-in.` | [Unable to get organization UUID](https://code.claude.com/docs/en/claude-code-on-the-web.md#unable-to-get-organization-uuid) |
218219| `Cloud sessions need a claude.ai sign-in` | [Unable to get organization UUID](https://code.claude.com/docs/en/claude-code-on-the-web.md#unable-to-get-organization-uuid) |
219220| `Nothing was stashed: "<path>" is now a folder in place of a tracked file or link` / `are now folders in place of tracked files or links` | [Command-line errors](#nothing-was-stashed-because-a-folder-replaced-a-tracked-file) |
220221| `Error: --json-schema is not a valid JSON Schema` | [Command-line errors](#the-json-schema-value-is-not-a-valid-json-schema) |
from line 322
321322| `File is covered by a Read deny rule in your permission settings` | [Tool errors](#file-is-covered-by-a-read-deny-rule) |
322323| `cannot contain null bytes (\0)` | [Tool errors](#path-cannot-contain-null-bytes) |
323324| `Path contains null bytes` | [Tool errors](#path-cannot-contain-null-bytes) |
325| `command contains the invisible character U+FEFF (byte order mark) or U+180E (Mongolian vowel separator), and was not run` | [Tool errors](#command-contains-an-invisible-character) |
324326| `File is too large to read as an image (the limit is 128MB)` | [Tool errors](#file-is-too-large-to-read-as-an-image) |
325327| `Cannot read this as an image: <path> is a pipe or a device` | [Tool errors](#file-is-too-large-to-read-as-an-image) |
326328| `subagent_type is required: the general-purpose agent is not available in this session` | [Tool errors](#subagent-type-is-required) |
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25072509**What to do:**
25082510
25092511* If you maintain the server, shorten the tool's name.
2510* If the server is in your [MCP configuration](https://code.claude.com/docs/en/mcp.md#mcp-installation-scopes), give it a shorter name there, such as `db` in place of `analytics-database`. Then update what refers to the server or its tools by the old name, such as [permission rules](https://code.claude.com/docs/en/permissions.md#mcp) and [hook matchers](https://code.claude.com/docs/en/hooks.md#match-mcp-tools).
2511* If a [plugin bundles the server](https://code.claude.com/docs/en/mcp.md#plugin-provided-mcp-servers), the tool's full name also includes the plugin name. Ask the plugin's maintainer to shorten the server or tool name.
2512
2513Before v2.1.292, Claude Code sent the tool anyway, and the API rejected every request that included it with `API Error: 400
2512* If the server is in your [MCP configuration](https://code.claude.com/docs/en/mcp.md#mcp-installation-scopes), give it a shorter name there, such as `db` in place of `analytics-database`. Then update what refers to the server or its tools by the old name, such as [permission rules](https://code.claude.com/docs/en/permissions.md#mcp) and [hook match
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