Changes touching this path

• a fetch gains a depth the host honours: the request carries a trailing depth after its wants, written only above zero so a request at zero is byte for byte what every client sent before, and an old host decoder returns after the wants and never sees it, which is what makes it safe to send to any host; the relay and the forge confine the change lane to the nodes within that many generations of their live heads, one being the heads and nothing older, intersected with the delta past have and, on the forge, after the entitlement gate, so a caller refused metadata in a full bundle is refused it at any depth and a node the caller holds is never re-sent, while a want is answered by address whatever the depth, the lane walking the cut changes as it walks the held ones; the seeds are live heads and not childless ids, the forge reading the ref declared set a client computed with its retire applied and the engine excluding any version a node names as a predecessor, since on a host that ingests amends a superseded sibling stays childless and would otherwise seed a generation of its own, 213 such tips against 31 real on this repo; /info advertises it as fetch_depth, false when absent, so a caller that needs the bound refuses a host without it and a caller that can afford the fallback proceeds. the receiver still cuts and that stays the rule, ADR 0089 amended rather than overturned: pull_metadata_via and the depth round of a bounded pull ask the host for the depth they will keep, FromTips as its n and a deepen as zero since the frontier is this position own, and applies IngestDepth to whatever arrives, so a host that predates the field sends the history and the position is the same one generation deep, which the test relay pins both ways by playing a host that honours the depth and one that does not. the WASM core encodes the same bytes, frozen in the parity suite against the native vector at depth one. decided by a grill of six questions on 2026-09-20 and recorded on the ticket and in the ADR: bounded per invocation regardless of persistence, a depth on the existing fetch rather than a listing endpoint, counted from the host heads, search kept on the receiving side over bodies fetched by address, the host cut an optimisation the client never depends on, and the SDK and the cache cap to follow. this is the wire half of the browser SDK stopping its 53 MB stateless read and of the serverless runner per-job pull; measured against the live relay in the landing comment once the hosts are deployed. pinned on the same shapes at each host so the two walks are held to one answer, a chain at depths one, two and zero and past a have, a fork whose two heads are both seeds, a superseded sibling that never is, and depth zero byte-identical to the one-pass walk this walk replaced, the forge with a reader the gate refuses getting nothing at any depth; in loot-net on the field decoded both ways with an old body as zero, an odd remainder refused, a pre-field info as false and one frozen vector both encoders pin; over the wire on a spawned relay and a spawned forge each answering one node of two at depth one and advertising the cut, with a want riding across the cut; and in the CLI cache refresh asking depth one. a clone at a depth asks the host too, so its declined count is 0 under a host that cut, since nothing behind the cut arrives to be declined, and the frontier width is what says the position is bounded, which the shallow suite now pins against a host that honours the depth and one that predates it; the count stays exact on a deepen, which asks the host for no cut because the frontier it deepens from is this position own. red under mutation, counts read each time: the engine ignoring the depth (0 passed and 1 failed), the engine cut counting one generation too many (0 passed and 1 failed), the depth never written (1 passed and 1 failed), the depth never read (1 passed and 1 failed), the relay not advertising the cut (1 passed and 1 failed), the relay handler dropping the depth (0 passed and 1 failed), the forge ignoring the depth (0 passed and 1 failed), the forge cutting before the gate (0 passed and 1 failed), the forge not advertising the cut (0 passed and 1 failed), the cache refresh asking no depth (0 passed and 1 failed), the receiver stopping its own cut when the host cuts (0 passed and 1 failed), the wasm framing never writing the depth (0 passed and 1 failed), the forge handler dropping the depth (0 passed and 1 failed), the engine seeding from a superseded version (0 passed and 1 failed), the forge seeding from every childless id declared or not (0 passed and 1 failed), an odd remainder read as no depth (1 passed and 1 failed), and the wants lane skipping the cut changes (0 passed and 1 failed). no migration and no format major move: a trailing field the old side never reads is a minor move, and /info default false is the whole compatibility story; the relay and the forge owe a deploy, which the release cut carries. the workspace suite is green (4017 passed over 126 binaries, 7 ignored) (#2123) e3ddfdce · dbf3dbe6…

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