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PR #4289 corrected the false claim that GitHub auto-retries 5xx webhook deliveries, but its replacement wording overcorrected: it described a mistaken 200 response as dropping the webhook "forever with no way to recover it" / "permanently" - implying manual recovery is impossible, not just unprompted. fancyboi999 flagged this in a CHANGES_REQUESTED review on #4289 (submitted 23:21:23Z, referencing github_webhooks.py:190-197,325-335 and test_github_webhooks.py:548-559) that went unaddressed before the PR was approved and merged roughly 40 minutes later. Verified directly against GitHub's documentation before changing anything: the manual "Redeliver" button and the REST/App redelivery endpoints place no failed-status precondition on the delivery id - any past delivery, success or failure, can be redelivered within GitHub's ~3-day window (https://docs.github.com/en/webhooks/testing-and-troubleshooting-webhooks/redelivering-webhooks, https://docs.github.com/en/rest/repos/webhooks#redeliver-a-delivery-for-a-repository-webhook). The real problem with swallowing a transient failure into 200 is discoverability, not recoverability: the delivery never shows up as failed in Recent Deliveries, and GitHub's own recommended scripted-recovery pattern filters on non-OK status by convention, not because the platform blocks redelivering a success. A 200'd delivery can still be redelivered by hand if an operator happens to look - they just get no signal telling them to, unlike the 503 path, which stays correctly flagged as failed and so is actually found. - github_webhooks.py: reworded the route docstring and the inline fan-out comment to describe the 200-vs-503 difference as discoverability, not raw recoverability, and added the redelivery docs link alongside the existing failed-deliveries link. - test_github_webhooks.py: reworded test_dispatch_failure_returns_503_not_200's docstring the same way. No assertions changed. All 44 tests in test_github_webhooks.py pass, plus test_github_dispatcher.py / test_github_channel.py / test_github_registry.py / test_channels.py (322 total). ruff check and ruff format --check are clean on both touched files.