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When a timeout is configured, fetch passes a copied options object containing the timeout signal combined with any existing signal. A test verifies the timeout error and confirms that three retries result in four requests to the timeout handler.

Changes: Timeout retries

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix · Severity of issue fixed: Medium

The change appears ready to merge after normal checks. The timeout test’s timing may warrant monitoring, but no failure has been established.

Systems and components

• observed — src (service) was modified; 1 changed file maps to changed impact.
• observed — test (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in src/fetch.ts: Added the ResolvedFetchOptions type import used to type the options passed to fetch.
• observed — Modified behavior in src/fetch.ts: When a timeout is configured, fetch now receives a copied options object with the timeout signal combined with any existing signal; previously, the timeout signal was assigned to context.options.signal and that same options object was passed to fetch.
• observed — Modified behavior in test/index.test.ts: Adds a counter for requests handled by the /timeout endpoint.
• observed — Modified behavior in test/index.test.ts: Increments the timeout request counter each time the /timeout handler runs.

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly describes the main change: making timeout and retry behavior compatible so retries continue after a timeout.
Linked Issues check		Issue #637 requires retries to send subsequent HTTP requests after a timeout when retry and timeout are both set. src/fetch.ts creates a new fetchOptions object for each attempt and creates a …
Out of Scope Changes check		The reviewed changes are limited to timeout-signal handling in src/fetch.ts and a focused regression test in test/index.test.ts. The test-server counter and response-format change support or do no…

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