A heartbeat write error abandoned the attempt at once. The lease is still
valid until locked_until, so the attempt was dropped for nothing: the row
was recovered later and the task re-ran from the start, although its side
effects (a sent album, a copied post) may already have happened. A failed
beat now retries at the next tick; the attempt is abandoned only once the
next beat could land at or past the last confirmed expiry.
docker.yml pushed the image for tags and master without waiting for the
test job, so a red commit could still be published. ci.yml is now also a
workflow_call target; docker depends on its result. The gate run has its
own concurrency group and never cancels a superseded run, so a docs-only
follow-up cannot drop the image of the code commit before it. The live
job is skipped for the gate call.
Three places disagreed with AGENTS' own level rules: get_chat/get_chat_administrators failures during /set_channel printed at error even though the usual cause is a mistyped channel name the user fixes on the spot (error is reserved for dead letters and the like — now warn, same as other user-served degradations); the edit-before-forward callback arrival line logged at info while the sibling arrival lines for commands and inline queries log at debug (now debug, still carries the escaped payload); and the two upload-fallback lines logged at info while photo.rs's parallel degradations log at warn (now warn both — Telegram failing to fetch our media is a degradation that leaves the user served). AGENTS' convention sentence is now explicit about all three instead of the ambiguous '(fallback, retry enqueue, dead-letter is error)'.
The per-request CLIENT timeout and the per-chunk DOWNLOAD_IDLE_TIMEOUT both reset on progress, so neither bounded the fetch as a whole: a URL that keeps dripping (a trickle the idle timeout reads as life) could hold one of the eight FETCH_SLOTS for effectively ever, and the queue behind the slots is what then stalls. The attempts loop now runs inside tokio::time::timeout(900 s) — generous for a genuinely large ugoira zip on a honest slow link (minutes), fatal for a drip — and answers Transient with the cache key, so the retry and its jittered backoff take over. The permit is taken outside the timeout: the slot is released on either path. Audit low finding 'url_workers long tail' (process-wide total-deadline option).
download_to_temp guarded against a file id, but prepare_upload_item answered a non-http media_url first — and item_url maps FileId to the id itself, so the id was presented as a local *path* and died later with a confusing file-open error instead of a classification. The guard now sits at the entry, download_to_temp takes the already-narrowed URL (the inner guard deleted as dead), and the test pins the refusal as Permanent before any I/O. The file also carries item10's download-classification arm (RateLimited is retryable there too) — same file, landed here to keep each tree compiling.
Two gaps in fetch_with_attempts: the sleep was the bare 1 << attempt, so every worker that failed together (a source coming back, a shared proxy blip) also recovered on the same tick and re-stamped the source; and a429 arrived as an anonymous Transient, its Retry-After header — the one place a source tells you exactly how long it wants silence — dropped on the floor.
retry_wait(attempt, roll, err) is the pure decision: doubling base plus a random slice of itself ([base, 2x base)), floored at a named Retry-After. status_error now takes the response, reads the seconds-form header and returns the new FetchError::RateLimited { site, retry_after_secs } (HTTP-date parses to None and stays transient); the pure table moved to classify_status so tests still build it from bare status codes. The delay is capped at MAX_RETRY_AFTER_SECS = 60 — the header is server-supplied and must not park one of the eight fetch slots.
Everywhere a Transient meant 'retryable' the new variant joins: the Site trait default, pixiv's override (plus its ugoira-zip mapping), bsky's HLS second attempt, the download classifier, and the user-facing message arm. Tests pin the429 rows (with and without the header, cap included) and retry_wait's math; AGENTS' retries bullet and variant list follow.
A non-photo body charged the process-wide budget for as long as download_to_temp held it; a photo charged nothing until its prepare step, so the download itself — up to MAX_PHOTO_DOWNLOAD_BYTES per item, six items per batch, eight prep slots process-wide — was memory the MEMORY_BUDGET comment promised was bounded but was not (~6x32 MiB on top of the accounted512 MiB). Photos now reserve their own download cap for that window; the prepare step still charges header probe + decode buffer, the only overlap that is actually held in memory together. Net accounting stays within the declared budget instead of exceeding it whenever a batch of large photos downloads at once (audit: upload.rs photo window uncharged).
YoursFunny
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