Fix “AbortSignal.timeout Is Not a Function” in DeepSeek Harness
Official Discussion #311 reports AbortSignal.timeout is not a function on a reported Node 24.17.0 setup. Capture the exact runtime binary used by npx, compare it with supported and tested versions, and reproduce with plugins disabled before applying speculative polyfills. This page separates verified behavior from community reports and marks the release-candidate context so you can act without mistaking an observation for a permanent guarantee.
What is verified now
Official Discussion #311 reports AbortSignal.timeout is not a function on a reported Node 24.17.0 setup. Capture the exact runtime binary used by npx, compare it with supported and tested versions, and reproduce with plugins disabled before applying speculative polyfills.
Evidence basis: Official Discussion #311. The status was checked on 14 August 2026; re-check the linked source after any dsh release.
Safe workflow
Use the smallest reversible workflow first. Do not add community plugins or paste credentials while validating the base behavior.
- Copy the exact error and record OS, Node and dsh versions.
- Apply the narrow checks on this page in order.
- Verify with a minimal profile and escalate with sanitized logs if it persists.
Verify before moving on
A successful result should be observable: a version string, reachable local URL, valid provider response, loaded configuration, or disappearance of the exact error. If the result differs, stop and capture sanitized evidence rather than stacking unrelated fixes.
- Record the exact dsh, Node or Python version.
- State the operating system and installation method.
- Link the first-party source and include only sanitized logs.
First-party sources
Open the original source before acting on a changed version or unresolved community report.