Error reference changederrors
Nearest release: v2.1.252, published 12 hours after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
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237237 * When no reduction can fit, for example when the conversation itself nearly fills the context window.
238238 * When a retry can't shrink `max_tokens` any further. Before v2.1.218, Claude Code could re-send a reduced request that still didn't fit, such as when the extended thinking budget exceeded the remaining context, until the retry budget ran out.
239239* An expired or missing Google Cloud credential on [Google Cloud's Agent Platform](/docs/en/google-vertex-ai), which surfaces as an error such as `Could not load the default credentials`. Claude Code discards its cached credentials and retries up to two times, running your [`gcpAuthRefresh`](/docs/en/google-vertex-ai#advanced-credential-configuration) command if you configured one, then reports the error so you can re-authenticate right away. [Google Cloud's Agent Platform troubleshooting](/docs/en/google-vertex-ai#troubleshooting) covers re-authenticating. Before v2.1.228, Claude Code retried a failing credential through the full retry budget before showing the error.
240* A `401` or `403` from the Anthropic API, directly or through an [LLM gateway](/docs/en/llm-gateway), while an [`apiKeyHelper`](/docs/en/settings-reference#apikeyhelper) script supplies the credential. Claude Code re-runs the script and retries with its fresh output, within the full retry budget. When the script itself fails on the re-run, Claude Code shows [Your apiKeyHelper script is failing](#your-apikeyhelper-script-is-failing) instead.
240241
241242Before v2.1.227, `Connection lost before a response was produced` read `Connection closed while thinking, before producing a response` and `The response stalled before a response was produced` read `Response stalled while thinking, before producing a response`.
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23862387### Plugin archive integrity check failed
23872388
2388The plugin's marketplace entry uses an [`archive` source](/docs/en/plugin-marketplaces#zip-archives) with a `sha256` pin, and the digest of the downloaded file doesn't match the pin. Claude Code refuses the install, so nothing changes in the plugin cache. The mismatch has three possible causes:
2389
2390* The file at the URL changed after the author computed the pin
2391* The author entered the wrong digest in the marketplace entry
2392* The URL serves a different file than the author pinned
2393
2394```text theme={null}
2395Plugin archive integrity check failed for https://artifacts.example.com/claude-plugins/my-plugin.zip: expected sha256 6bfa50e3d2e00c052b46abe51fff89346ac
2389The plugin's marketplace entry uses an [`archive` source](/docs/en/plugin-marketplaces#zip-archives) with a `sha256` pin, and the digest of the downloaded file doesn't match the pin. Claude Code refuses the ins
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