A provider whose backend keeps the response open without finishing (hanging
HTTP server, stuck SDK call) stalled the web_extract tool call — and with a
sync provider, the borrowed thread — indefinitely. The dispatch in
tools/web_tools_extract._dispatch_extract now runs under asyncio.wait_for with
web.extract_timeout (config.yaml, default 120s; 0 disables). On timeout the
tool returns structured per-URL error entries, and the one-shot keyless rescue
still gets its chance when eligible.
Salvaged from PR #57180 by @liuhao1024 (base predated the web_tools
decomposition; re-applied at the _dispatch_extract seam, env-var timeout
replaced with the web.* config section per the .env-is-for-secrets rule, and
the timeout path made rescue-aware).
Inspired by Claude Code 2.1.268: "Fixed WebFetch hanging indefinitely on a
server that keeps the response open without finishing; a fetch now fails
after 300 seconds."
Fixes#57155
Co-authored-by: liuhao1024 <sunsky.lau@gmail.com>
browser_navigate / browser_exec / web_extract refused any URL whose query carried a
credential-NAMED parameter (token, signature, access_token, ...) when the backend was
a cloud provider. That is exactly the shape of magic links, OAuth callbacks and signed
CDN assets, so on Browserbase/Browser Use the agent could not finish a sign-in flow or
open an X video asset ("Blocked: URL contains a credential-like query parameter").
The floor protected nothing: the cloud browser already sees every cookie and typed
password of the session, and with the credential vault it receives the real password at
fill time. Hermes' own secrets leaking into a URL stay blocked by the value-shaped
_PREFIX_RE check (_secret_url_error), which is backend-independent. IMDS and
private-address floors are unchanged.
liuhao1024