Error reference changederrors
Nearest release: v2.1.299, published 3 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 14 Oct 2026 03:25 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 14 Oct 2026 03:37 UTC.
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Recorded edits187to this page, all time
### Request rejected as unprocessable by the model
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148148| `Request too large for the API's 32MB request limit` | [Request errors](#request-too-large) |
149149| `Image was too large` | [Request errors](#image-was-too-large) |
150150| `Unable to resize image` | [Request errors](#unable-to-resize-image) |
151| `Request rejected as unprocessable by the model` | [Request errors](#request-rejected-as-unprocessable-by-the-model) |
151152| `PDF too large` / `PDF is password protected` / `pdftoppm is not installed` | [Request errors](#pdf-errors) |
152153| `Extra inputs are not permitted` | [Request errors](#extra-inputs-are-not-permitted) |
153154| `API Error: 400 ... tools.N.custom.input_schema: JSON schema is invalid` / `Property keys should match pattern` | [Request errors](#tool-input-schema-is-invalid) |
from line 200
199200| `Couldn't verify your organization's policy for cloud sessions` | [Command-line errors](#couldnt-verify-your-organizations-policy-for-cloud-sessions) |
200201| `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) |
201202| `Cloud sessions need a claude.ai sign-in` | [Unable to get organization UUID](/docs/en/claude-code-on-the-web#unable-to-get-organization-uuid) |
203| `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) |
202204| `Error: --json-schema is not a valid JSON Schema` | [Command-line errors](#the-json-schema-value-is-not-a-valid-json-schema) |
203205| `Error: Invalid --agents configuration:` | [Command-line errors](#invalid-agents-configuration) |
204206| `Error: --agents takes a JSON object, or a file path only with --print (-p)` | [Command-line errors](#invalid-agents-configuration) |
from line 260
258260| `Output styles are saved to local settings (.claude/settings.local.json), which this session doesn't load` | [Command-line errors](#output-styles-are-saved-to-local-settings-which-this-session-doesnt-load) |
259261| `/recap only runs when you ask for it yourself in this session` | [Command-line errors](#recap-only-runs-when-you-ask-for-it-yourself) |
260262| `` `plugin eval` is currently in early access `` / `` `plugin eval` is currently unavailable `` | [Plugin errors](#plugin-eval-is-currently-in-early-access) |
263| `cannot be evaluated where sessions load it` | [Test plugins with evals](/docs/en/plugin-evals#cannot-be-evaluated-where-sessions-load-it) |
261264| `Marketplace "<name>" is registered from an untrusted source` | [Plugin errors](#marketplace-is-registered-from-an-untrusted-source) |
262265| `Claude Code refuses the marketplace name "<name>"` | [Plugin errors](#claude-code-refuses-the-marketplace-name) |
263266| `Marketplace name impersonates an official Anthropic/Claude marketplace` | [Plugin errors](#claude-code-refuses-the-marketplace-name) |
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22262229* If the message reports a dimension or size limit, resize or recompress the image below that limit before attaching.
22272230* If the message names a cause, such as a CMYK JPEG, an animated WebP, or a possibly damaged file, re-save the image in the format the message suggests and attach it again.
22282231
2232### Request rejected as unprocessable by the model
2233
2234The API refused the request as one the model can't process. The message is the API's own.
2235
2236```text theme={null}
2237API Error: 400 Request rejected as unprocessable by the model (too many or oversized images, or unsupported parameters)
2238```
2239
2240Claude Code can remove the oldest images and documents from a refused request and send it again. Before v2.1.290, Claude Code didn't remove images on this refusal, so a long session that accumulated hundreds of them could fail with this error on every turn.
2241
2242**What to do:**
2243
2244* If the message keeps appearing in a conversation with images or documents, remove them yourself. Press Esc twice to step back past the turns that added them, or run `/clear` to start fresh.
2245
22292246### PDF errors
22302247
22312248The PDF you attached couldn't be processed. The messages are shown here in their non-interactive form; in an interactive session they instead prompt you to double press esc and try again.
from line 2770
27532770On [Amazon Bedrock](/docs/en/amazon-bedrock), [Google Cloud's Agent Platform](/docs/en/google-vertex-ai), and [Microsoft Foundry](/docs/en/microsoft-foundry), a cybersecurity flag produces the [Usage Policy refusal](#usage-policy-refusal) message instead.
27542771
27552772The safeguard itself is server-side and predates v2.1.203; client releases since then have changed only the message's wording.
2756From v2.1.203 through v2.1.218, the message read `<model> has safety measures that flagged this message for a cybersecurity topic. To learn about the Cyber Verification Program and apply for access, visit our help center:` followed by the same help-center link, and interactive sessions appended `If you were not engaging in a cybersecurity topic, please send feedback via /feedback.`
2757Before v2.1.203, it read `<model>'s safeguards flagged this message for a cybersecurity topic. If your work requires this access, you can apply for an exemption:` followed by an exemption form link.
2758
2759**What to do:**
2760
2761* If your work requires this content, apply for access through the [Cyber Verification Program](https://support.claude.com/en/articles/14604842-real-time-cyber-safeguards-on-claude)
2762* If your request wasn't about a cybersecurity topic, run `/feedback` to report the false positive
2763* To keep working in the same session, press Esc twice or run `/rewind` to step back to a checkpoint before the turn that triggered the flag, then take a different approach. See [Checkpointing](/docs/en/checkpointing).
2764
2765<h3 id="safeguards-flagged-a-request-for-claudes-reasoning">
2766 Safeguards flagged a request for Claude's reasoning
2767</h3>
2768
2769The API declined the request because safeguards flagged it as asking the model to reproduce its internal reasoning in the response. The API names this [refusal category](https://platform.claude.com/docs/en/build-wi
2773From v2.1.203 through v2.1.218, the message read `<model> has safety measures that flagged this message for a cybersecurity topic. To learn about the Cyber Verification Program and apply f
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