Decide whether a hosted patch is pinned through lockfile discovery alone

[Mikola Lysenko (mikolalysenko)]

Problem

Audit §3.B, "is this pinned": four places decided whether a patch uuid is pinned, and they disagreed.

• engine::confirm used the rewriters' reports plus substring needles.
• rollout::mark_pinned counted any uuid-shaped token in any candidate text.
• The in-memory engine's memory_recorded counted any mention of an offered uuid in any file.
• vex::discover / HostedInventory (what vex, list, rollback, remove and vendor read) parses each format.

What that caused:

• Rollout cap bypass. A stale hosted URL in a package.json field, an inactive pdm.lock or a comment read as ALREADY, so the row slipped past --max-new-patches. Both engines did this.
• Hosted scan in a Pipenv project whose requirements.txt pins the package through an -r include rewires only Pipfile.lock, then reports success while vex and rollback refuse the contested lock it just created #567. Hosted Pipenv rewired Pipfile.lock beside a requirements -r include that still pins the registry release. The scan reported success; vex and rollback then refused the contested lock, and the suggested remedy (re-run the scan) changed nothing.
• Hosted Maven "redirected" is confirmed by substring, so the scan envelope and ledger claim patches that vex refuses and Maven never enforces #260. A Maven pin that Maven never consumes (a <profile>-scoped dependency) was confirmed by substring.
• B13. Lockless NuGet / Cargo pins are contested forever. The refusal's remedy loops ("re-run socket-patch scan --mode hosted").
• B58. The rollout second pass took the apply lock only after an unlocked read of the files it then writes.

Change

Lockfile discovery is now the only answer to "is this pinned". Three commits:

1. Read lockfile discovery through any project view. Behavior-preserving.
   • Discovery used to read the disk directly in 10 places. Content reads and listings now go through ProjectView.
   • Probes that need an installed tree sit behind DiscoverCtx::disk_root() and see nothing in memory.
   • New entry point: discover_patched_refs_view().
   • The hosted engine's private Python-lock lister is deleted in favor of ProjectView::python_lock_paths().
2. Decide recorded hosted pins through lockfile discovery.
   • mentioned_uuids and the mention scan in memory_recorded are deleted.
   • Both engines' recorded view is now HostedPin::discover. Two behavior changes in the in-memory engine: a pin now counts even when the API no longer offers its patch (as on disk, so a re-scan re-confirms it as ALREADY instead of spending a NEW slot), and pins wired only by files under a nested root are still excluded, as the old mention scan did.
   • A pin on a patch server the run's references name but that isn't configured is recognized by re-running discovery with those origins (foreign_dep_origins). This replaces mark_pinned's reason to exist.
   • The disk scan makes that check before its lock decision. The late lock taken after an unlocked read is gone (B58).
   • Lockless pins now carry ContestedWiring.lockless. The refusal names the lockfile to create (dotnet restore --use-lock-file / cargo generate-lockfile) instead of a scan re-run.
   • A lockless pin's own grant token is no longer reported as a second contested patch (UnlockedPin.index_url).
3. Never write hosted pins lockfile discovery would contest.
   • engine::rewrite now runs discovery over the project as the rewrite would leave it: a DiskSnapshot::overlay on disk, or the in-memory project plus the pending writes.
   • It reads the result through HostedInventory, the management commands' own view.
   • A confirmed candidate whose pin would be contested wiring is dropped, and the rest are rewritten without it. It appears in redirect.skipped[] as redirect_unattributable; nothing is written for it and the exit code is unchanged.
   • Disk and in-memory engines share this one gate. This is what fixes Hosted scan in a Pipenv project whose requirements.txt pins the package through an -r include rewires only Pipfile.lock, then reports success while vex and rollback refuse the contested lock it just created #567 and Hosted Maven "redirected" is confirmed by substring, so the scan envelope and ledger claim patches that vex refuses and Maven never enforces #260.

Kept as is, and documented in CLI_CONTRACT ("Attribution gate"):

• A pin in a file discovery does not read keeps the rewriter's verdict. Example: a pre-2.6 bundler Gemfile, which the next bundle install locks.

• Deliberate partial redirects the run already reports keep their behavior:

  • bundled or bun patch-ed copies (bundled_skipped_uuids)
  • bundled copies in vlt's store
  • deps withheld from the vlt rewrite while a sibling lock takes them

  Which unreachable copies should block a redirect is the copy-source policy (audit B16).

• A vendored→hosted takeover is never vetoed. A wet run has already reverted its vendored wiring and saved the ledger before the rewrite, so dropping it would leave the package on the unpatched registry release (exit 1) while the dry run reported success. Its pin keeps the rewriters' verdict, as before this PR, and the dry run and wet run agree (RewriteOptions::takeover_uuids).

• Lockless NuGet / Cargo pins are still written. They now carry a redirect_pin_lockless warning.

Duplicate copies deleted (before → after)

What	Before	After
"Is this uuid pinned" oracles	4: confirm needles, mark_pinned/mentioned_uuids, memory_recorded mention scan, discovery	1 deciding oracle (discovery, via HostedPin::discover / HostedInventory). confirm()'s needles stay as a "did the write land" pre-check that discovery can veto, and they still decide pins in files discovery does not read. The in-run --vex RedirectState carrier is deferred to E45. Counted strictly, 4 → 2.
Python-lock listers over a view	2: hosted::engine::python_lock_paths and the discovery disk call	1: ProjectView::python_lock_paths
Requirements include walkers	Disk-only, with a separate disk path for discovery	1 view-based walk; the disk API delegates to it
Discovery origin builders	2 identical copies: commands::discover_options and rollback::patch_server_origins	1. The vlt heal's private list, which also counts --api-url, is renamed vlt_heal_origins and documented, so the two names no longer collide.

Testing

Failing-first: each new regression test was run against code without its fix and failed there.

• hosted_memory_rollout::a_uuid_mentioned_outside_a_pin_is_new_not_already: cap bypass, disk and in-memory parity.
• in_process_redirect_pipenv::an_unreached_requirements_include_vetoes_the_pipfile_lock_redirect: Hosted scan in a Pipenv project whose requirements.txt pins the package through an -r include rewires only Pipfile.lock, then reports success while vex and rollback refuse the contested lock it just created #567 (now also asserts exit 0).
• in_process_get_hosted_ecosystems::maven_profile_scoped_dependency_is_not_redirected: Hosted Maven "redirected" is confirmed by substring, so the scan envelope and ledger claim patches that vex refuses and Maven never enforces #260 (now also asserts exit 0).
• core tests/hosted_inventory::lockless_nuget_pin_refusal_names_the_lockfile_remedy: B13 remedy.
• mode_migration_pypi::pipenv_takeover_beside_an_unreached_include_is_never_stranded: a vendored Pipenv project plus an unreached -r include; the dry run and wet run agree and the dep ends up pinned to the patch. Before the takeover exemption the wet run exited 1 with redirect_takeover_unpatched.
• mode_migration_pypi::pipenv_redirect_beside_an_unreached_include_is_skipped_unattributable: --json contract (skipped[].reason == redirect_unattributable, detail names the contesting file, redirected == 0, exit 0, nothing written).
• hosted::engine::tests::a_lockless_nuget_pin_is_written_with_the_lockless_warning: the redirect_pin_lockless warning and its dotnet restore --use-lock-file remedy.
• describe_skip_reason unit test covers the new redirect_unattributable text.

Commands run (through heavy-job.sh, CARGO_INCREMENTAL=0, -j4), on head e25c17d over origin/main 431b818:

• cargo test -p socket-patch-core --no-fail-fast: 6238 passed, 0 failed.
• cargo test -p socket-patch-cli --no-fail-fast: 5129 passed, 3 failed. All 3 are unrelated and fail the same way before this PR:
  • mode_migration_npm::berry_vendored_then_hosted_takeover_leaves_pure_hosted fails on the base commit too.
  • e2e_vendor_cargo_build::cargo_vendored_{manifest_patch_builds_on_old_toolchains,two_versions_are_refused_by_cargo_below_1_45} fail locally because the old x86_64 rustup toolchains can't run on arm64 ("Bad CPU type").
• cargo clippy -p socket-patch-core -p socket-patch-cli --all-features -- -D warnings: clean apart from the macOS-only unused_variables in python_crawler.rs, which already fails on main on this host (checked with -A unused-variables).
• cargo clippy --all-targets: no findings in touched files.
• rustfmt was applied only to the lines this branch changed.

Linux and docker suites are left to CI.

Deferred

• Cost of the attribution gate: measured and fixed; see Performance below.
• DiskSnapshot::overlay changes content reads and existence probes, not directory listings. A file a rewrite creates that discovery only finds by listing (a new pylock.*.toml, a new rush subspace lock) would bypass the gate. No hosted rewriter creates one today; the limit is documented on overlay().
• Lockless NuGet / Cargo redirects keep being written, and the in-run --vex still attests them through this run's records injected as a fake RedirectState. Whether they should be written, made restorable or refused is E45, so I left it undecided. Replacing the RedirectState carrier with a typed HostedRecords belongs with that decision.
• confirm()'s substring needles are not deleted. They now only answer "did this run's write land", and discovery vetoes them. Replacing them with discovery outright changes the vlt-withheld and earlier-grant-token cases and needs its own pass.
• Partial redirects next to unreachable copies (bundled npm, bun or vlt copies; the vlt-withheld sibling), and vendored→hosted takeovers that discovery contests, still leave state that rollback refuses as contested. That is the copy-source policy (B16), not decided here. A takeover could instead be checked in the takeover preflight and kept vendored, like redirect_requirements_takeover_unreachable.
• A pre-2.6 bundler Gemfile-only pin is not a recorded pin until bundle install locks it, so under a cap it spends a slot on each run until then.
• Rebase risk. These open PRs touch the same files: Fix 15 open pnpm issues across hosted, vendored and agent modes #1007, Fix open npm issues #1008, Fix open bun issues (#992, #861, #784, #764, #735, #635, #599, #578, #497, #443, #371) #1009 (hosted/engine.rs, CLI_CONTRACT.md), Make the vendored-to-hosted takeover atomic #1039 and Stop CI gates passing on missing paths, unverified agent patches and unreported hosted pins #1029 (scan/hosted.rs, hosted/engine.rs, hosted/memory/mod.rs), Decide vendored-entry liveness through one discovery verdict #1050 and Stop VEX attesting over yarn PnP, pnpm bundled and deno.lock copies #1033 (vex/discover/{mod,cargo,npm}.rs, pypi_requirements.rs). The ProjectView migration of discovery should land before Decide vendored-entry liveness through one discovery verdict #1050 and Stop VEX attesting over yarn PnP, pnpm bundled and deno.lock copies #1033 rebase, or after them, rather than both re-routing the same reads. The lock_inventory/pnpm.rs change is a mechanical move to ProjectView, not a pnpm fix. This PR keeps its CLI_CONTRACT.md edits away from Fix PyPI hosted takeover un-vendoring before refusal (#723, #945) #946's hunks.

Performance

The attribution gate first cost one to three extra lockfile discoveries per hosted scan, which made scan performance fail. Three changes bring it back under main's numbers.

1. A cheaper discovery (vex/discover/mod.rs, vendor/vlt_bundled.rs, gradle):

• The resolved_elsewhere dedup is linear now (it was quadratic).
• socket_identities is memoized process-wide. The key is the SHA-256 of the text plus the patch-server origins. Only files of 16 KiB or more are memoized, at most 64 entries. A repeated discovery of an unchanged lockfile, for example the gate's, skips the identity parse.
• One Aho-Corasick sweep finds the anchors. A URL fast-reject skips text that cannot name a patch server, with a parity test over 230 spellings.
• The vlt store walk runs as one blocking task. It uses lstat and probes shared path prefixes once, instead of a canonicalize per entry. Symlinked components still go through canonicalize, so the walk stays inside the project.
• Gradle's PinnedRowChecks are computed once per discovery.

2. Reusing scan's discovery (hosted/engine.rs, scan/hosted.rs):

• The gate reuses scan's own pre-redirect discovery (RewriteOptions::prior_discovery) instead of discovering again. That needs all of these:
  • (a) the pass writes nothing;
  • (b) the gate's origins equal scan's: no grant names a host outside Socket's server and the configured patch servers (foreign_dep_origins is empty);
  • (c) no vendored→hosted takeover reverted or migrated files earlier in this run;
  • (d) the read-set guard below passes.
• The gate hands back what it used as Rewritten::final_discovery. The post-write step (discovery_after_writes) uses it in place of a third discovery, as follows:
  • Nothing written: scan's discovery, or the gate's.
  • --dry-run: scan's discovery.
  • Files written: the gate's overlaid discovery, but only when one of these holds: discovery read only through the overlaid view, which also shows created files; or no created file is visible to a read around the view (overlay_creation_is_invisible).
  • A vlt store heal additionally requires the discovery's vlt_bundled_copies to equal the healed store's.
  • Otherwise it discovers again, as before.

3. The read-set race guard (lock_inventory/view.rs ReadSet, scan/rollout.rs Prior::still_current):

• Scan discovers before it takes the apply lock, so a concurrent writer could change the project in between.
• Scan's discovery runs over a tracked DiskSnapshot. Before its first read of each path, the snapshot records that path's fingerprint: file metadata, and a directory's entry listing.
• Under the apply lock, still_current() re-stats every recorded path and offers the prior discovery only when every fingerprint still holds.
• The snapshot's root is private. A read the view does not mediate must go through root_reading(paths), which fingerprints exactly those paths, or through root(), which makes the read set unusable (None) and so opts that discovery out of reuse. The vlt store walk uses root(). NuGet's same-file probe declares its two paths through disk_root_reading.
• A racily-current file is one modified within 2 s of its fingerprint. Timestamps move in ticks (about 16 ms on Windows, a second on HFS+), so a same-length rewrite in the same tick keeps every stat. Like git's "racily clean" files, such a file also holds only while its content is still the content the view read. A racy file that was only probed never holds.
• Any change, or an unusable read set, sends the gate to a fresh discovery.

Bench: a local socket-patch-bench compare with the CI settings (perf profile, 15 pairs plus confirmations, all 45 scenarios). Base: origin/main 829d0af. Head: this branch at 9c49ebf. Exit 0, no regressions, peak RSS at most +7.4% (npm/hosted +2.8%). CI scan performance passed on every head pushed (56ca23e, 63bba81, d94dc9b, 0bf0c3f, 9c49ebf); later heads add only a main merge and a workflow pin comment.

scenario	pkgs	base wall	head wall	Δ wall [95% CI]	Δ CPU	Δ peak RSS	requests	verdict
npm/hosted	3000	122.2 ms	105.0 ms	-14.1% [-15.8, -13.2]	-8.5%	+2.8%	127	✅ faster
npm/rescan	3000	103.6 ms	76.9 ms	-26.1% [-26.7, -25.0]	-12.3%	-2.6%	127	✅ faster
pnpm/hosted	3000	243.8 ms	213.8 ms	-7.1% [-21.6, -2.6]	-10.5%	-0.2%	127	≈
pnpm/rescan	3000	134.8 ms	129.9 ms	-9.5% [-12.8, -1.0]	-2.6%	-0.1%	127	✅ faster
yarn-classic/hosted	3000	111.6 ms	93.6 ms	-16.1% [-17.8, -15.5]	-9.7%	+3.5%	127	✅ faster
yarn-classic/rescan	3000	97.9 ms	73.3 ms	-25.1% [-26.1, -24.5]	-11.5%	-6.3%	127	✅ faster
yarn-berry/hosted	3000	131.9 ms	116.6 ms	-11.5% [-12.1, -11.0]	-7.2%	-0.1%	127	✅ faster
yarn-berry/rescan	3000	109.7 ms	92.0 ms	-16.5% [-16.9, -15.1]	-8.8%	-7.2%	127	✅ faster
bun/hosted	3000	140.4 ms	130.5 ms	-6.9% [-7.7, -5.9]	-3.8%	-0.5%	127	≈
bun/rescan	3000	129.9 ms	115.7 ms	-10.7% [-11.4, -10.1]	-5.4%	-1.9%	127	✅ faster
bun-isolated/hosted	3000	172.0 ms	162.8 ms	-5.4% [-6.1, -5.0]	-2.4%	-0.2%	127	≈
bun-isolated/rescan	3000	172.6 ms	157.6 ms	-9.0% [-9.4, -8.0]	-4.2%	-1.7%	127	≈
vlt/hosted	1500	320.4 ms	186.1 ms	-42.0% [-42.2, -41.3]	-33.0%	+1.8%	94	✅ faster
vlt/rescan	1500	297.6 ms	162.7 ms	-45.4% [-45.9, -44.6]	-32.6%	+2.3%	94	✅ faster
pip/hosted	1000	72.7 ms	71.2 ms	-1.9% [-3.7, -1.2]	-2.8%	+3.8%	53	≈
pip/rescan	1000	60.5 ms	57.2 ms	-5.4% [-7.3, -2.0]	-5.4%	+3.0%	53	≈
uv/hosted	400	71.6 ms	69.6 ms	-3.0% [-4.3, -1.0]	-4.0%	+4.2%	38	≈
uv/rescan	400	52.1 ms	47.9 ms	-8.2% [-9.8, -6.3]	-8.2%	+2.1%	38	≈
pylock/hosted	400	58.8 ms	59.9 ms	+0.9% [-3.2, +3.9]	-3.1%	+3.8%	26	≈
pylock/rescan	400	47.5 ms	41.6 ms	-12.5% [-13.6, -10.9]	-12.0%	+2.0%	26	✅ faster
poetry/hosted	400	52.4 ms	53.1 ms	-0.6% [-3.1, +4.4]	-2.0%	+1.8%	26	≈
poetry/rescan	400	38.4 ms	34.8 ms	-9.8% [-10.4, -8.0]	-9.6%	+1.7%	26	✅ faster
pipenv/hosted	400	48.6 ms	48.3 ms	-0.5% [-5.3, +0.6]	-1.9%	+2.2%	26	≈
pipenv/rescan	400	37.7 ms	36.6 ms	-3.6% [-4.4, -2.2]	-3.6%	+3.1%	26	≈
pdm/hosted	400	53.6 ms	51.3 ms	-1.9% [-6.8, +2.2]	-2.7%	+1.7%	26	≈
pdm/rescan	400	38.6 ms	35.3 ms	-8.3% [-9.0, -7.3]	-7.9%	+1.6%	26	≈
hatch/hosted	1000	69.1 ms	69.4 ms	+0.1% [-0.9, +2.0]	+0.5%	+1.7%	53	≈
hatch/rescan	1000	49.1 ms	48.7 ms	-0.1% [-2.1, +1.1]	-0.7%	+1.4%	53	≈
bundler/hosted	800	62.7 ms	61.2 ms	-1.0% [-1.8, -0.2]	-1.2%	+1.9%	43	≈
bundler/rescan	800	40.4 ms	38.3 ms	-4.1% [-5.9, -1.9]	-4.5%	+1.7%	43	≈
composer/hosted	800	49.3 ms	45.6 ms	-6.9% [-7.5, -6.1]	-9.0%	+7.4%	43	≈
composer/rescan	800	36.8 ms	28.4 ms	-22.9% [-23.6, -21.2]	-21.9%	-2.0%	43	✅ faster
cargo/hosted	600	110.8 ms	109.0 ms	-1.1% [-3.0, -0.5]	-2.9%	+2.2%	33	≈
cargo/rescan	600	85.5 ms	81.3 ms	-4.5% [-5.3, -3.9]	-4.4%	+2.1%	33	≈
golang/hosted	1200	54.5 ms	53.4 ms	-2.3% [-3.3, -0.4]	-1.9%	+4.9%	64	≈
golang/rescan	1200	42.2 ms	39.5 ms	-6.5% [-7.3, -5.8]	-6.2%	+1.4%	64	≈
nuget/hosted	900	52.4 ms	52.0 ms	-1.1% [-2.2, -0.2]	-2.2%	+2.1%	53	≈
nuget/rescan	900	39.0 ms	37.9 ms	-2.3% [-3.4, -1.9]	-3.3%	+2.5%	53	≈
maven/hosted	1000	90.1 ms	91.1 ms	+1.1% [-0.9, +1.9]	+0.1%	+1.9%	53	≈
maven/rescan	1000	78.9 ms	78.0 ms	-1.0% [-1.5, -0.2]	-0.5%	+1.2%	53	≈
gradle/hosted	1000	154.7 ms	147.2 ms	-5.4% [-6.5, -3.8]	-6.7%	+2.0%	53	≈
gradle/rescan	1000	129.8 ms	114.1 ms	-12.2% [-12.9, -11.9]	-12.5%	+1.1%	53	✅ faster
npm/dry-run	3000	88.6 ms	72.7 ms	-17.8% [-18.0, -17.7]	-9.5%	+3.7%	67	✅ faster
npm/public-proxy	3000	118.5 ms	102.9 ms	-13.2% [-13.9, -12.5]	-7.7%	+2.9%	151	✅ faster
npm/latency	3000	689.9 ms	667.9 ms	-3.3% [-4.5, -2.3]	-10.0%	-0.7%	127	≈

Fixes #567
Fixes #260

🤖 Generated with Claude Code

---

Note

High Risk
Changes when hosted mode writes lockfiles and how rollout caps classify pins—core hosted scan path with broad ecosystem impact, mitigated by extensive regression tests and performance work.

Overview
Hosted redirect now uses lockfile discovery as the single “is this pinned?” oracle, replacing substring/mentioned_uuids checks in rollout caps and the in-memory engine. Pins on foreign patch-server origins are recognized via a pre-lock HostedPin::discover pass; lockless NuGet/Cargo pins count in the recorded view and emit redirect_pin_lockless instead of looping scan remedies.

Attribution gate (v5.0): before committing hosted rewrites, engine::rewrite simulates the post-write project (overlay or in-memory) and runs the same discovery vex/rollback/vendor use. Candidates whose pins would be contested wiring are dropped as redirect_unattributable in redirect.skipped[] with no file writes (#567 Pipenv + unreached -r include, #260 Maven profile deps). Staged vendored→hosted takeovers stay exempt so wet runs cannot strand packages unpatched.

Performance and correctness plumbing: scan records a fingerprinted prior discovery (ProjectContext + DiskSnapshot::tracked, Prior::still_current under the apply lock) and reuses it when origins and on-disk state match; post-write classification uses discovery_after_writes / FinalDiscovery to avoid redundant full discovers. Discovery reads route through ProjectView; CLI contract documents the gate and new warning/skip codes.

^{Reviewed by Cursor Bugbot for commit 02b8bd1. Configure here.}

---

Generated by Claude Code

[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 2 potential issues.

Autofix Details

Bugbot Autofix prepared a fix for the issue found in the latest run.

• ✅ Fixed: Gate omits configured patch-server origins
  • Added patch_server_origins field to RewriteOptions and related types to pass the --patch-server-url allowlist through to the attribution gate's discovery, ensuring it uses the same origins as management commands.

Or push these changes by commenting:

@cursor push 4947219719

Preview (4947219719)

diff --git a/crates/socket-patch-cli/src/commands/list.rs b/crates/socket-patch-cli/src/commands/list.rs
--- a/crates/socket-patch-cli/src/commands/list.rs
+++ b/crates/socket-patch-cli/src/commands/list.rs
@@ -431,7 +431,10 @@
                 detail: detail.clone(),
             });
         } else if !args.common.silent {
-            eprintln!("Warning: {}", crate::commands::rollback::capitalize_first(detail));
+            eprintln!(
+                "Warning: {}",
+                crate::commands::rollback::capitalize_first(detail)
+            );
         }
     }
     let vendor_state = crate::commands::vendor_state_lenient(&loaded.vendor, args.common.silent);
@@ -773,12 +776,18 @@
         let listings = HostedListing::from_pins(
             &[
                 pin("pkg:npm/minimist@1.2.2", &record.uuid),
-                pin("pkg:npm/other@1.0.0", "33333333-3333-4333-8333-333333333333"),
+                pin(
+                    "pkg:npm/other@1.0.0",
+                    "33333333-3333-4333-8333-333333333333",
+                ),
             ],
             Some(&legacy),
         );
         assert_eq!(listings[0].record, record);
-        assert_eq!(listings[1].record.uuid, "33333333-3333-4333-8333-333333333333");
+        assert_eq!(
+            listings[1].record.uuid,
+            "33333333-3333-4333-8333-333333333333"
+        );
         assert!(listings[1].record.vulnerabilities.is_empty());
         assert_eq!(listings[1].lockfiles, vec!["yarn.lock".to_string()]);
     }

diff --git a/crates/socket-patch-cli/src/commands/mod.rs b/crates/socket-patch-cli/src/commands/mod.rs
--- a/crates/socket-patch-cli/src/commands/mod.rs
+++ b/crates/socket-patch-cli/src/commands/mod.rs
@@ -1,7 +1,7 @@
 pub mod apply;
 pub(crate) mod bun_preflight;
+pub(crate) mod composer_hints;
 pub(crate) mod context;
-pub(crate) mod composer_hints;
 pub(crate) mod fetch_stage;
 pub mod get;
 pub mod hosted_bundle;
@@ -9,11 +9,11 @@
 pub(crate) mod lock_cli;
 pub mod remove;
 pub mod repair;
-pub(crate) mod vendored_backend;
 pub mod rollback;
 pub mod scan;
 pub mod update;
 pub mod vendor;
+pub(crate) mod vendored_backend;
 pub mod vex;
 pub(crate) mod vex_consumed;
 pub(crate) mod vex_sources;
@@ -136,9 +136,11 @@
     common: &crate::args::GlobalArgs,
     root: &Path,
 ) -> socket_patch_core::patch::redirect::RedirectState {
-    hosted_state_from_pins(&socket_patch_core::patch::redirect::upstream::HostedPin::all(
-        &discover_wiring(common, root).await,
-    ))
+    hosted_state_from_pins(
+        &socket_patch_core::patch::redirect::upstream::HostedPin::all(
+            &discover_wiring(common, root).await,
+        ),
+    )
 }
 
 /// [`hosted_state_from_lockfiles`] over already-discovered pins. A purl
@@ -148,10 +150,8 @@
 ) -> socket_patch_core::patch::redirect::RedirectState {
     let mut state = socket_patch_core::patch::redirect::RedirectState::new();
     for pin in pins {
-        state
-            .records
-            .entry(pin.purl.clone())
-            .or_insert_with(|| socket_patch_core::manifest::schema::PatchRecord {
+        state.records.entry(pin.purl.clone()).or_insert_with(|| {
+            socket_patch_core::manifest::schema::PatchRecord {
                 uuid: pin.uuid.clone(),
                 exported_at: String::new(),
                 files: Default::default(),
@@ -159,7 +159,8 @@
                 description: String::new(),
                 license: String::new(),
                 tier: String::new(),
-            });
+            }
+        });
     }
     state
 }
@@ -186,4 +187,3 @@
         }
     }
 }
-

diff --git a/crates/socket-patch-cli/src/commands/scan/discovery.rs b/crates/socket-patch-cli/src/commands/scan/discovery.rs
--- a/crates/socket-patch-cli/src/commands/scan/discovery.rs
+++ b/crates/socket-patch-cli/src/commands/scan/discovery.rs
@@ -168,29 +168,32 @@
     }
     // `(ledger key, base purl, entry)`; the artifact fallback has no
     // entries to probe, so it never reports unwired keys.
-    let candidates: Vec<(String, String, Option<&socket_patch_core::vendor::VendorEntry>)> =
-        match state {
-            Ok(state) => state
-                .entries
-                .iter()
-                .map(|(key, entry)| {
-                    (
-                        key.clone(),
-                        strip_purl_qualifiers(&entry.base_purl).to_string(),
-                        Some(entry),
-                    )
-                })
-                .collect(),
-            // Corrupt/unreadable ledger (a MISSING file is Ok(empty) above):
-            // recover the vendored set from the committed artifacts, or
-            // `scan --prune` (whose ledger exemption also degrades to empty)
-            // would delete still-vendored packages' manifest entries and blobs.
-            Err(_) => vendored_purls_from_artifacts(common)
-                .await
-                .into_iter()
-                .map(|base| (base.clone(), base, None))
-                .collect(),
-        };
+    let candidates: Vec<(
+        String,
+        String,
+        Option<&socket_patch_core::vendor::VendorEntry>,
+    )> = match state {
+        Ok(state) => state
+            .entries
+            .iter()
+            .map(|(key, entry)| {
+                (
+                    key.clone(),
+                    strip_purl_qualifiers(&entry.base_purl).to_string(),
+                    Some(entry),
+                )
+            })
+            .collect(),
+        // Corrupt/unreadable ledger (a MISSING file is Ok(empty) above):
+        // recover the vendored set from the committed artifacts, or
+        // `scan --prune` (whose ledger exemption also degrades to empty)
+        // would delete still-vendored packages' manifest entries and blobs.
+        Err(_) => vendored_purls_from_artifacts(common)
+            .await
+            .into_iter()
+            .map(|base| (base.clone(), base, None))
+            .collect(),
+    };
     // Composer by release identity: a ledger `@3.0.2.0` is the crawled
     // `@3.0.2`, not a second package to supplement.
     let key = |p: &str| composer_purl_identity(p).unwrap_or_else(|| normalize_purl(p).into_owned());
@@ -1045,7 +1048,9 @@
             ..GlobalArgs::default()
         };
         let state = socket_patch_core::vendor::load_state(root).await;
-        vendored_ledger_supplement(&args, crawled, &state).await.packages
+        vendored_ledger_supplement(&args, crawled, &state)
+            .await
+            .packages
     }
 
     /// A ledger entry vendored as `@3.0.2.0` is the crawled composer
@@ -1080,7 +1085,9 @@
             out.iter().map(|p| &p.purl).collect::<Vec<_>>()
         );
 
-        let out = vendored_ledger_supplement(&args, &[], &Ok(state)).await.packages;
+        let out = vendored_ledger_supplement(&args, &[], &Ok(state))
+            .await
+            .packages;
         assert_eq!(
             out.iter().map(|p| p.purl.as_str()).collect::<Vec<_>>(),
             vec!["pkg:composer/psr/log@3.0.2.0"]
@@ -1183,7 +1190,10 @@
             let state = npm_ledger_with_lock(tmp.path(), lock.as_deref()).await;
             let out = vendored_ledger_supplement(&args, &[], &state).await;
             assert_eq!(
-                out.packages.iter().map(|p| p.purl.as_str()).collect::<Vec<_>>(),
+                out.packages
+                    .iter()
+                    .map(|p| p.purl.as_str())
+                    .collect::<Vec<_>>(),
                 vec!["pkg:npm/left-pad@1.3.0"],
                 "lock={lock:?}"
             );

diff --git a/crates/socket-patch-cli/src/commands/scan/hosted.rs b/crates/socket-patch-cli/src/commands/scan/hosted.rs
--- a/crates/socket-patch-cli/src/commands/scan/hosted.rs
+++ b/crates/socket-patch-cli/src/commands/scan/hosted.rs
@@ -1023,7 +1023,11 @@
             .map(|c| c.dep.patch_uuid.clone())
             .collect()
     };
-    let rewrite_options = || RewriteOptions {
+    // The `--patch-server-url` allowlist: extra patch-server origins the
+    // attribution gate recognizes when discovering attributable pins.
+    let patch_server_origins = crate::commands::rollback::patch_server_origins(common);
+    let rewrite_options = || {
+        RewriteOptions {
         dry_run: common.dry_run,
         targets_pipenv_lock,
         pipenv_major,
@@ -1036,6 +1040,8 @@
         npm_outer: &npm_outer,
         blocking: true,
         takeover_uuids: takeover_uuids.clone(),
+        patch_server_origins: patch_server_origins.clone(),
+    }
     };
     // The rollout gate plans again without its deferred rows: keep what
     // the second pass needs.
@@ -4787,19 +4793,43 @@
         use super::npm_allow_remote_one_line;
         let hosts = ["patch.socket.dev"];
         let cases = [
-            (npm_allow_remote_configured_detail(&hosts, true, false), "Note: set"),
-            (npm_allow_remote_configured_detail(&hosts, false, false), "Note: set"),
-            (npm_allow_remote_configured_detail(&hosts, true, true), "Note: would set"),
-            (npm_allow_remote_already_detail(&hosts), "Note: .npmrc already"),
-            (npm_allow_remote_user_set_detail(&hosts, "none"), "Warning: npm >=12"),
-            (npm_allow_remote_env_set_detail(&hosts, "npm_config_allow_remote", "none"), "Warning: npm >=12"),
+            (
+                npm_allow_remote_configured_detail(&hosts, true, false),
+                "Note: set",
+            ),
+            (
+                npm_allow_remote_configured_detail(&hosts, false, false),
+                "Note: set",
+            ),
+            (
+                npm_allow_remote_configured_detail(&hosts, true, true),
+                "Note: would set",
+            ),
+            (
+                npm_allow_remote_already_detail(&hosts),
+                "Note: .npmrc already",
+            ),
+            (
+                npm_allow_remote_user_set_detail(&hosts, "none"),
+                "Warning: npm >=12",
+            ),
+            (
+                npm_allow_remote_env_set_detail(&hosts, "npm_config_allow_remote", "none"),
+                "Warning: npm >=12",
+            ),
             (npm_allow_remote_manual_detail(&hosts), "Warning: npm >=12"),
-            (npm_allow_remote_unreadable_detail(&hosts, "is a symlink"), "Warning: npm >=12"),
+            (
+                npm_allow_remote_unreadable_detail(&hosts, "is a symlink"),
+                "Warning: npm >=12",
+            ),
         ];
         for (detail, start) in cases {
             let line = npm_allow_remote_one_line(&detail);
             assert!(line.starts_with(start), "{line}");
-            assert!(!line.contains('\n') && line.ends_with("(details: --verbose)."), "{line}");
+            assert!(
+                !line.contains('\n') && line.ends_with("(details: --verbose)."),
+                "{line}"
+            );
         }
     }
 }

diff --git a/crates/socket-patch-cli/src/commands/scan/policy.rs b/crates/socket-patch-cli/src/commands/scan/policy.rs
--- a/crates/socket-patch-cli/src/commands/scan/policy.rs
+++ b/crates/socket-patch-cli/src/commands/scan/policy.rs
@@ -11,9 +11,9 @@
 use socket_patch_core::api::types::PatchSearchResult;
 use socket_patch_core::manifest::schema::PatchManifest;
 use socket_patch_core::policy::{
-    canon, find_repo_root_with_warnings, policy_block, FilteredEntry, RetainedEntry, patch_severity_order, repo_relative_checked, sanitize, severity_name,
-    DiskPolicyFs, FilterReason, Offers, PolicyError, PolicySource, PolicyWarning, Root, SelectionPolicy,
-    PATCHES_DISABLED,
+    canon, find_repo_root_with_warnings, patch_severity_order, policy_block, repo_relative_checked,
+    sanitize, severity_name, DiskPolicyFs, FilterReason, FilteredEntry, Offers, PolicyError,
+    PolicySource, PolicyWarning, RetainedEntry, Root, SelectionPolicy, PATCHES_DISABLED,
 };
 use socket_patch_core::utils::purl::normalize_purl;
 
@@ -42,12 +42,18 @@
 /// Load the policy for `args` (4.5): `--global` scans have no repo and read
 /// no file; everything else reads the repo root's socket.yml.
 pub(crate) fn load_invocation_policy(args: &ScanArgs) -> Result<InvocationPolicy, PolicyLoadError> {
-    let overrides = args.socket_yml.overrides().map_err(PolicyLoadError::Usage)?;
+    let overrides = args
+        .socket_yml
+        .overrides()
+        .map_err(PolicyLoadError::Usage)?;
     let cwd = std::fs::canonicalize(&args.common.cwd).unwrap_or_else(|_| args.common.cwd.clone());
     if args.common.is_global() {
-        let policy = SelectionPolicy::load(&socket_patch_core::policy::MemoryPolicyFs::default(), &overrides)
-            .map_err(PolicyLoadError::Policy)?
-            .0;
+        let policy = SelectionPolicy::load(
+            &socket_patch_core::policy::MemoryPolicyFs::default(),
+            &overrides,
+        )
+        .map_err(PolicyLoadError::Policy)?
+        .0;
         return Ok(InvocationPolicy {
             policy,
             repo_root: cwd,
@@ -56,8 +62,8 @@
         });
     }
     let (repo_root, mut warnings) = find_repo_root_with_warnings(&cwd);
-    let (policy, load_warnings) =
-        SelectionPolicy::load(&DiskPolicyFs::new(&repo_root), &overrides).map_err(PolicyLoadError::Policy)?;
+    let (policy, load_warnings) = SelectionPolicy::load(&DiskPolicyFs::new(&repo_root), &overrides)
+        .map_err(PolicyLoadError::Policy)?;
     warnings.extend(load_warnings);
     Ok(InvocationPolicy {
         policy,
@@ -141,7 +147,12 @@
 
 impl ScanPolicy {
     /// The policy for the project rooted at `root_dir`.
-    pub(crate) fn for_root(invocation: &InvocationPolicy, root_dir: &Path, explicit: bool, global: bool) -> Self {
+    pub(crate) fn for_root(
+        invocation: &InvocationPolicy,
+        root_dir: &Path,
+        explicit: bool,
+        global: bool,
+    ) -> Self {
         let root_dir = std::fs::canonicalize(root_dir).unwrap_or_else(|_| root_dir.to_path_buf());
         let project = repo_relative_checked(&invocation.repo_root, &root_dir).unwrap_or_default();
         let root_verdict = if global {
@@ -174,7 +185,9 @@
                 severity: None,
             });
         }
-        let announce_warnings = !invocation.warned.swap(true, std::sync::atomic::Ordering::Relaxed);
+        let announce_warnings = !invocation
+            .warned
+            .swap(true, std::sync::atomic::Ordering::Relaxed);
         Self {
             policy: invocation.policy.clone(),
             warnings,
@@ -227,7 +240,10 @@
     /// exclude stays in the query (so `upgradeAvailable` can be reported)
     /// but joins the retained set, which never reaches a writer.
     pub(crate) fn admit_crawled(&self, purl: &str) -> bool {
-        let verdict = self.root_verdict.clone().and_then(|()| self.policy.admits_purl(purl));
+        let verdict = self
+            .root_verdict
+            .clone()
+            .and_then(|()| self.policy.admits_purl(purl));
         let reason = match verdict {
             Ok(()) => return true,
             Err(reason) => reason,
@@ -337,7 +353,8 @@
             // (not when a lower-ranked admitted patch simply wins).
             let top_withheld = self.policy.admits_severity(patch_severity_order(&group[0]));
             if let Err(reason) = top_withheld {
-                let upgrade_withheld = chosen.is_some() && chosen == recorded_at && recorded_at != Some(0);
+                let upgrade_withheld =
+                    chosen.is_some() && chosen == recorded_at && recorded_at != Some(0);
                 if chosen.is_none() || upgrade_withheld {
                     report.filtered.push(FilteredEntry {
                         purl: Some(canon(&purl)),
@@ -525,17 +542,20 @@
         let verdict = if !policy.enabled() {
             Err(FilterReason::Disabled)
         } else {
-            root_verdict.clone().and_then(|()| policy.admits_purl(purl)).and_then(|()| {
-                // The floor only hides a package when none of its patches pass.
-                match group
-                    .iter()
-                    .map(|p| policy.admits_severity(patch_severity_order(p)))
-                    .find(Result::is_ok)
-                {
-                    Some(ok) => ok,
-                    None => policy.admits_severity(patch_severity_order(group[0])),
-                }
-            })
+            root_verdict
+                .clone()
+                .and_then(|()| policy.admits_purl(purl))
+                .and_then(|()| {
+                    // The floor only hides a package when none of its patches pass.
+                    match group
+                        .iter()
+                        .map(|p| policy.admits_severity(patch_severity_order(p)))
+                        .find(Result::is_ok)
+                    {
+                        Some(ok) => ok,
+                        None => policy.admits_severity(patch_severity_order(group[0])),
+                    }
+                })
         };
         if let Err(reason) = verdict {
             out.push((

diff --git a/crates/socket-patch-cli/src/commands/scan/rollout.rs b/crates/socket-patch-cli/src/commands/scan/rollout.rs
--- a/crates/socket-patch-cli/src/commands/scan/rollout.rs
+++ b/crates/socket-patch-cli/src/commands/scan/rollout.rs
@@ -4,8 +4,10 @@
 
 use std::collections::{BTreeMap, BTreeSet, HashSet};
 
-use socket_patch_core::rollout::{canonical_base_purl, severity_label, MaxNew, MaxNewSource, Recorded, RolloutPlan};
 pub(crate) use socket_patch_core::rollout::stage::*;
+use socket_patch_core::rollout::{
+    canonical_base_purl, severity_label, MaxNew, MaxNewSource, Recorded, RolloutPlan,
+};
 
 use super::discovery::UpdateInfo;
 
@@ -208,11 +210,11 @@
 mod tests {
     use super::*;
     use socket_patch_core::api::types::PatchSearchResult;
+    use socket_patch_core::api::types::VulnerabilityResponse;
     use socket_patch_core::manifest::schema::PatchManifest;
-    use std::path::Path;
-    use socket_patch_core::api::types::VulnerabilityResponse;
     use socket_patch_core::manifest::schema::PatchRecord;
     use std::collections::HashMap;
+    use std::path::Path;
 
     fn offer(purl: &str, uuid: &str, published: &str, severities: &[&str]) -> PatchSearchResult {
         PatchSearchResult {
@@ -357,13 +359,21 @@
         let stored = manifest(&[("pkg:composer/psr/log@3.0.2.0", "old")]);
         let recorded = RecordedIndex::new(Some(&stored), &[]);
         let offers = offers_from_results(
-            &[offer("pkg:composer/psr/log@v3.0.2", "new", "2026-02-01T00:00:00Z", &["high"])],
+            &[offer(
+                "pkg:composer/psr/log@v3.0.2",
+                "new",
+                "2026-02-01T00:00:00Z",
+                &["high"],
+            )],
             false,
         );
         let rows = classify(&offers, &recorded, "");
         let plan = socket_patch_core::rollout::plan_rollout(
             rows.into_iter().map(|row| row.candidate).collect(),
-            &MaxNew { value: Some(0), source: MaxNewSource::Flag },
+            &MaxNew {
+                value: Some(0),
+                source: MaxNewSource::Flag,
+            },
             false,
             &BTreeSet::new(),
         );

diff --git a/crates/socket-patch-cli/src/commands/scan/rollout_args.rs b/crates/socket-patch-cli/src/commands/scan/rollout_args.rs
--- a/crates/socket-patch-cli/src/commands/scan/rollout_args.rs
+++ b/crates/socket-patch-cli/src/commands/scan/rollout_args.rs
@@ -1,7 +1,6 @@
 //! `scan --max-new-patches` (see the rollout guide,
 //! `docs/configuration.md#gradual-rollout`).
 
-
 use clap::Args;
 pub(crate) use socket_patch_core::rollout::stage::RolloutCarry;
 use socket_patch_core::rollout::{resolve_max_new, MaxNew};
@@ -77,7 +76,6 @@
     }
 }
 
-
 #[cfg(test)]
 mod tests {
     use super::*;

diff --git a/crates/socket-patch-cli/src/commands/vendor.rs b/crates/socket-patch-cli/src/commands/vendor.rs
--- a/crates/socket-patch-cli/src/commands/vendor.rs
+++ b/crates/socket-patch-cli/src/commands/vendor.rs
@@ -442,10 +442,7 @@
 /// entry (fail-safe): ecosystems other than npm, cargo and pypi (whose
 /// probe covers the requirements flavor only) have no in-use probe yet,
 /// and a missing/unreadable lockfile proves nothing.
-pub(crate) async fn dispatch_in_use_one(
-    entry: &VendorEntry,
-    project_root: &Path,
-) -> Option<bool> {
+pub(crate) async fn dispatch_in_use_one(entry: &VendorEntry, project_root: &Path) -> Option<bool> {
     match entry.ecosystem.as_str() {
         "npm" => vendor::npm_flavor::vendored_entry_in_use(entry, project_root).await,
         // Cargo probes the lock entry's shape: detached + `[patch]` pointing
@@ -1237,8 +1234,7 @@
     // know (the ledger was ignored or dropped from the commit along with the
     // manifest) leaves every fresh install failing; the manifest keys above
     // cannot see it, so the references are read from the wiring itself.
-    let references =
-        crate::commands::vendored_backend::repair::scan_vendor_references(root).await;
+    let references = crate::commands::vendored_backend::repair::scan_vendor_references(root).await;
     for (eco, uuid, rel) in references {
         let ledgered = state
             .entries

diff --git a/crates/socket-patch-cli/tests/apply/apply_network.rs b/crates/socket-patch-cli/tests/apply/apply_network.rs
--- a/crates/socket-patch-cli/tests/apply/apply_network.rs
+++ b/crates/socket-patch-cli/tests/apply/apply_network.rs
@@ -940,7 +940,10 @@
         "a legacy package archive must not cover the patch; stdout={stdout}\nstderr={stderr}"
     );
     let content = std::fs::read(tmp.path().join("node_modules/pkgcache/index.js")).unwrap();
-    assert_eq!(content, before, "the file must not be patched from the legacy archive");
+    assert_eq!(
+        content, before,
+        "the file must not be patched from the legacy archive"
+    );
 
     let requests = mock.received_requests().await.unwrap_or_default();
     let blob_path = format!("/v0/orgs/{ORG_SLUG}/patches/blob/{after_hash}");
@@ -1043,10 +1046,7 @@
         v["summary"]["applied"], 1,
         "the drifted nested copy must be warn-overwritten.\nstdout={v:#}"
     );
-    assert_eq!(
-        v["summary"]["failed"], 0,
-        "no copy may fail.\nstdout={v:#}"
-    );
+    assert_eq!(v["summary"]["failed"], 0, "no copy may fail.\nstdout={v:#}");
 
     // The nested copy's blob was fetched on demand…
     let requests = mock.received_requests().await.unwrap();

diff --git a/crates/socket-patch-cli/tests/apply/in_process_gem_config_warning.rs b/crates/socket-patch-cli/tests/apply/in_process_gem_config_warning.rs
--- a/crates/socket-patch-cli/tests/apply/in_process_gem_config_warning.rs
+++ b/crates/socket-patch-cli/tests/apply/in_process_gem_config_warning.rs
@@ -201,7 +201,9 @@
         "non-silent stderr must carry the {CODE} warning; got:\n{stderr}"
     );
     assert_eq!(
-        stderr.matches("Warning: bundler app config BUNDLE_PATH").count(),
+        stderr
+            .matches("Warning: bundler app config BUNDLE_PATH")
+            .count(),
         1,
         "exactly ONE warning line (not one per discovery call); got:\n{stderr}"
     );

diff --git a/crates/socket-patch-cli/tests/cli/covgap_output.rs b/crates/socket-patch-cli/tests/cli/covgap_output.rs
--- a/crates/socket-patch-cli/tests/cli/covgap_output.rs
+++ b/crates/socket-patch-cli/tests/cli/covgap_output.rs
@@ -168,9 +168,8 @@
         .expect("spawn socket-patch in PTY");
     drop(pair.slave);
 
-    let reader_handle = crate::pty_io::PtyOutput::spawn(
-        pair.master.try_clone_reader().expect("clone reader"),
-    );
+    let reader_handle =
+        crate::pty_io::PtyOutput::spawn(pair.master.try_clone_reader().expect("clone reader"));
 
     // Watchdog: detached kill after `timeout`; a no-op if the child exits
     // naturally first.
@@ -261,7 +260,10 @@
         "\n",
         Duration::from_secs(15),
     );
-    assert_eq!(code, 0, "remove with bare Enter must succeed; got: {output}");
+    assert_eq!(
+        code, 0,
+        "remove with bare Enter must succeed; got: {output}"
+    );
     // The interactive confirm MUST have run — otherwise this test passes
     // vacuously against a regression that drops the TTY gate and
     // auto-proceeds. Match the distinctive prompt verbatim (the loose

diff --git a/crates/socket-patch-cli/tests/cli/interactive_prompts_e2e.rs b/crates/socket-patch-cli/tests/cli/interactive_prompts_e2e.rs
--- a/crates/socket-patch-cli/tests/cli/interactive_prompts_e2e.rs
+++ b/crates/socket-patch-cli/tests/cli/interactive_prompts_e2e.rs
@@ -112,9 +112,8 @@
     // closed. The previous design used a chunked read+mpsc loop
     // because it interleaved with a try_wait poll; the simplified
     // design serializes wait → drop master → read_to_end joins.
-    let reader_handle = crate::pty_io::PtyOutput::spawn(
-        pair.master.try_clone_reader().expect("clone reader"),
-    );
+    let reader_handle =
+        crate::pty_io::PtyOutput::spawn(pair.master.try_clone_reader().expect("clone reader"));
 
     // Watchdog: detach a thread that kills the child after `timeout`.
     // The cloned ChildKiller is independent of the main `child`

diff --git a/crates/socket-patch-cli/tests/cli_config_fallback.rs b/crates/socket-patch-cli/tests/cli_config_fallback.rs
--- a/crates/socket-patch-cli/tests/cli_config_fallback.rs
+++ b/crates/socket-patch-cli/tests/cli_config_fallback.rs
@@ -59,8 +59,7 @@
     let mut cmd = Command::new(BINARY);
     // Human mode: core's proxy advisory (the oracle below) is muted under
     // `--json`/`--silent`.
-    cmd.args(["scan", "-e", "npm", "--cwd"])
-        .arg(project);
+    cmd.args(["scan", "-e", "npm", "--cwd"]).arg(project);
     for (key, _) in std::env::vars_os() {
         let name = key.to_string_lossy();
         if name.starts_with("SOCKET_") {
@@ -298,7 +297,9 @@
     json_cmd.arg("--json");
     let json_out = run(json_cmd);
     assert!(
-        json_out.stderr.contains("could not parse socket-cli config"),
+        json_out
+            .stderr
+            .contains("could not parse socket-cli config"),
         "the parse warning must reach stderr under --json too; got:\n{}",
         json_out.stderr
     );

diff --git a/crates/socket-patch-cli/tests/cli_get_silent.rs b/crates/socket-patch-cli/tests/cli_get_silent.rs
--- a/crates/socket-patch-cli/tests/cli_get_silent.rs
+++ b/crates/socket-patch-cli/tests/cli_get_silent.rs
@@ -25,10 +25,7 @@
     for var in GLOBAL_ARG_ENV_VARS {
         cmd.env_remove(var);
     }
-    for var in [
-        "SOCKET_SAVE_ONLY",
-        "SOCKET_ALL_RELEASES",
-    ] {
+    for var in ["SOCKET_SAVE_ONLY", "SOCKET_ALL_RELEASES"] {
         cmd.env_remove(var);
     }
     cmd.env("SOCKET_TELEMETRY_DISABLED", "1");

diff --git a/crates/socket-patch-cli/tests/cli_parse_list.rs b/crates/socket-patch-cli/tests/cli_parse_list.rs
--- a/crates/socket-patch-cli/tests/cli_parse_list.rs
+++ b/crates/socket-patch-cli/tests/cli_parse_list.rs
@@ -370,7 +370,11 @@
     let out = run_list_binary(tmp.path(), &["--json"]);
     let v: serde_json::Value = serde_json::from_str(String::from_utf8_lossy(&out.stdout).trim())
         .expect("stdout must be valid JSON envelope");
-    assert_eq!(out.status.code(), Some(0), "missing manifest is an empty list");
+    assert_eq!(
+        out.status.code(),
+        Some(0),
+        "missing manifest is an empty list"
+    );
     assert_eq!(v["status"], "success", "envelope: {v}");
     assert_eq!(v["summary"]["discovered"], 0, "envelope: {v}");
 }
@@ -1313,7 +1317,10 @@
     assert_eq!(v["status"], "success", "envelope={v}");
     let warnings = v["warnings"].as_array().expect("warnings[] present");
     assert_eq!(warnings.len(), 1, "envelope={v}");
-    assert_eq!(warnings[0]["code"], "redirect_ledger_corrupt", "envelope={v}");
+    assert_eq!(
+        warnings[0]["code"], "redirect_ledger_corrupt",
+        "envelope={v}"
+    );
     assert!(
         out.stderr.is_empty(),
         "--json must keep stderr clean: {}",

diff --git a/crates/socket-patch-cli/tests/cli_parse_rollback.rs b/crates/socket-patch-cli/tests/cli_parse_rollback.rs
--- a/crates/socket-patch-cli/tests/cli_parse_rollback.rs
+++ b/crates/socket-patch-cli/tests/cli_parse_rollback.rs
@@ -366,7 +366,11 @@
 /// relied on the rejection get a test-visible flip instead of a silent one.
 #[test]
 fn multiple_targets_parse_in_order() {
-    let args = parse_rollback(&["pkg:npm/foo@1", "packages/api/**", "b0630680-4da6-45f9-bba8-b888e0ffd58c"]);
+    let args = parse_rollback(&[
+        "pkg:npm/foo@1",
+        "packages/api/**",
+        "b0630680-4da6-45f9-bba8-b888e0ffd58c",
+    ]);
     assert_eq!(
         args.targets,
         vec![

diff --git a/crates/socket-patch-cli/tests/cli_parse_scan.rs b/crates/socket-patch-cli/tests/cli_parse_scan.rs
--- a/crates/socket-patch-cli/tests/cli_parse_scan.rs
+++ b/crates/socket-patch-cli/tests/cli_parse_scan.rs
@@ -898,7 +898,11 @@
         ("NONE", None),
     ] {
         let args = parse_scan(&["--max-new-patches", raw]);
-        assert_eq!(args.rollout.max_new_patches, Some(MaxNewPatches(want)), "{raw}");
+        assert_eq!(
+            args.rollout.max_new_patches,
+            Some(MaxNewPatches(want)),
+            "{raw}"
+        );
     }
 }
 
@@ -989,20 +993,33 @@
     assert_eq!(parse_scan(&[]).socket_yml.min_severity, None);
     assert_eq!(overrides(&[], &[]).unwrap().min_severity, None);
     assert_eq!(
-        overrides(&["--min-severity", "High"], &[]).unwrap().min_severity,
+        overrides(&["--min-severity", "High"], &[])
+            .unwrap()
+            .min_severity,
         Some((Some(1), OverrideSource::Flag))
     );
     assert_eq!(
-        overrides(&["--min-severity", "none"], &[("SOCKET_MIN_SEVERITY", "critical")]).unwrap().min_severity,
+        overrides(
+            &["--min-severity", "none"],
+            &[("SOCKET_MIN_SEVERITY", "critical")]
+        )
+        .unwrap()
+        .min_severity,
         Some((None, OverrideSource::Flag))
     );
     assert_eq!(
-        overrides(&[], &[("SOCKET_MIN_SEVERITY", "moderate")]).unwrap().min_severity,
+        overrides(&[], &[("SOCKET_MIN_SEVERITY", "moderate")])
+            .unwrap()
+            .min_severity,
         Some((Some(2), OverrideSource::Env))
     );
-    assert_eq!(overrides(&[], &[("SOCKET_MIN_SEVERITY", "")]).unwrap().min_severity, None);
+    assert_eq!(
+        overrides(&[], &[("SOCKET_MIN_SEVERITY", "")])
+            .unwrap()
+            .min_severity,
+        None
+    );
     assert!(overrides(&[], &[("SOCKET_MIN_SEVERITY", "severe")]).is_err());
     assert!(try_parse_scan(&["--min-severity", "severe"]).is_err());
     assert!(overrides(&["--no-socket-yml"], &[]).unwrap().bypass);
 }
-

diff --git a/crates/socket-patch-cli/tests/coverage_fix_apply_silent_mute_exit.rs b/crates/socket-patch-cli/tests/coverage_fix_apply_silent_mute_exit.rs
--- a/crates/socket-patch-cli/tests/coverage_fix_apply_silent_mute_exit.rs
+++ b/crates/socket-patch-cli/tests/coverage_fix_apply_silent_mute_exit.rs
@@ -149,7 +149,9 @@
     );
     let chatter = stderr_chatter(&stderr);
     assert!(
-        chatter.iter().any(|l| l.contains("could not be downloaded")),
+        chatter
+            .iter()
+            .any(|l| l.contains("could not be downloaded")),
         "--silent must keep the download-failure error (errors only, \
          never nothing); stderr was: {stderr:?}"
     );

diff --git a/crates/socket-patch-cli/tests/covgap_commands_scan_hosted.rs b/crates/socket-patch-cli/tests/covgap_commands_scan_hosted.rs
--- a/crates/socket-patch-cli/tests/covgap_commands_scan_hosted.rs
+++ b/crates/socket-patch-cli/tests/covgap_commands_scan_hosted.rs
@@ -566,8 +566,7 @@
         "the human skipped line must name purl + reason; stderr=\n{stderr}"
     );
     assert!(
-        stderr.contains("Warning: ")
-            && stderr.contains("could not be reverted"),
+        stderr.contains("Warning: ") && stderr.contains("could not be reverted"),
         "the takeover pre-warning must reach human stderr; stderr=\n{stderr}"
     );
 }
@@ -814,7 +813,10 @@
     let lock_before = std::fs::read(root.join("package-lock.json")).unwrap();
 
     let assert_ignored = |code: i32, doc: &Value, label: &str| {
-        assert_eq!(code, 0, "{label}: a pre-v5 ledger is never an error: {doc:#}");
+        assert_eq!(
+            code, 0,
+            "{label}: a pre-v5 ledger is never an error: {doc:#}"
+        );
         assert_eq!(doc["status"], "success", "{label}: {doc:#}");
         assert!(
             !doc.to_string().contains("redirect-state.json"),
@@ -1017,7 +1019,10 @@
 
     for extra in [&[][..], &["--silent"][..]] {
         let (code, stdout, stderr) = scan_hosted(root, &server.uri(), extra, &[]);
-        assert_eq!(code, 0, "{extra:?}: an empty discovery exits 0; stderr=\n{stderr}");
+        assert_eq!(
+            code, 0,
+            "{extra:?}: an empty discovery exits 0; stderr=\n{stderr}"
+        );
         if extra.is_empty() {
             assert!(
                 stdout.contains("No patches available for installed packages."),
@@ -1404,16 +1409,22 @@
         ],
         &env,
     );
-    assert_eq!(code, 1, "a binary bun.lockb pin is refused: {stdout}\n{stderr}");
+    assert_eq!(
+        code, 1,
+        "a binary bun.lockb pin is refused: {stdout}\n{stderr}"
+    );
     let doc: Value = serde_json::from_str(&stdout).unwrap_or_else(|e| panic!("{e}: {stdout}"));
... diff truncated: showing 800 of 6730 lines

_{You can send follow-ups to the cloud agent here.}

[Mikola Lysenko (mikolalysenko)]

bugbot run

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[cursor]

Stale Bugbot comment from a previous run.

[Mikola Lysenko (mikolalysenko)]

[agent] Blocked: CI still pending on 8da8a1a, so this is not marked ready yet.

• Head already contained current origin/main (05ecc6e). No merge was needed.
• Fixed the two open Bugbot findings from e25c17d in 8da8a1a and replied on both threads:
  • The attribution gate now also discovers over the operator's --patch-server-url origins (RewriteOptions::patch_server_origins), the same list the management commands use.
  • mark_pinned now marks a NEW row as Superseded when an older patch for the same package is pinned on a server only this run's references name. Before, that upgrade spent a NEW cap slot.
• Local checks on 8da8a1a: clippy -D warnings is clean (lib/bin targets). core --lib 5634/5634 and hosted_inventory pass. The cli lib and hosted_memory_*, in_process_redirect_pipenv, in_process_get_hosted_ecosystems, mode_migration_pypi and scan_rollout_e2e tests all pass.
• Bugbot: its auto-run on 8da8a1a is pending. The two threads are replied to but not resolved, because resolving needs GraphQL and the GraphQL budget was 0.
• "Ready for review" label: not present.

Generated by Claude Code

[Mikola Lysenko (mikolalysenko)]

[agent] scan performance failure on 8da8a1a is a real regression. Reproduced locally, no push yet.

Local perf-profile bench (socket-patch-bench compare --runs 10) against origin/main:

scenario	main	this PR	change
npm/hosted	282 ms	359 ms	+25.9%
npm/rescan	257 ms	320 ms	+25.1%
pnpm/rescan	211 ms	231 ms	+12.8%

CPU is up about 20% and peak memory about 10%.

Cause: engine::rewrite (hosted/engine.rs) now loops rewrite_once + unattributed_pins. Each pass that confirms pins runs a full discover_patched_refs_view, even on a rescan that writes 0 files. That is a third full discovery per rewrite, on top of scan's ctx.discovery() (scan/mod.rs) and hosted_state_from_lockfiles. The CLI view is ProjectView::Disk, so the cost is parsing, not file reads, and overlaying a cached snapshot alone will not recover it.

Planned fix (next pass):

1. Thread scan's pre-rewrite Discovery and the origins it was computed with into RewriteOptions as an Option. get and the in-memory engine pass None.
2. In unattributed_pins, reuse it only when all of these hold:
   • nothing was written (ignoring synthetic sbt keys)
   • no binary files
   • the merged origin list matches the one the prior discovery used
   • no takeover or migration wrote first
3. Have rewrite_once borrow CandidateFiles and python_metadata instead of cloning them.

redirect_unattributable and redirect_pin_lockless keep working, because the same discovery result feeds HostedInventory::of.

---

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[Mikola Lysenko (mikolalysenko)]

[agent] Needs a human decision: is the scan performance regression on this PR acceptable?

Two fix attempts this run. The second reuses scan's pre-rewrite discovery in the unattributed_pins gate when a pass writes nothing and the origins match. It is parked, not pushed here, on branch agent/wip-1058-discovery-reuse (f27cf57). Clippy and tests were not re-run after its last edit.

scenario	before the fix	with the fix
npm/rescan	+25%	+5%
pnpm/rescan	+13%	+2.5% (noise)
npm/hosted	+26%	+26%

npm/hosted still regresses because a rewrite that writes files needs a full fresh discovery over the overlay, and the cost is lockfile parsing. Closing that gap means also dropping the post-write hosted_state_from_lockfiles discovery in favor of the gate's result. That is safe only when origins match and nothing writes after the rewrite (vlt heal, .npmrc). It is a larger behavioral refactor.

Question: should we

• (a) do that refactor on this PR,
• (b) take the parked rescan fix and accept the npm/hosted cost with performance-regression-accepted, or
• (c) rethink the unattributed_pins gate?

---

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[Mikola Lysenko (mikolalysenko)]

Burn-down agent: not labeling yet. Bugbot's "Lockless pins recast as new" thread (stage.rs, comment 4223060409) was resolved with no reply and no fix, and it still holds on 02b8bd1. In scan/hosted.rs (~L855–866), the foreign-origin re-classification passes mark_pinned only HostedPin::discover(view, &origins). That is HostedPin::all over refs, so lockless cargo/nuget pins in discovery.unlocked_pins are dropped. The main recorded view already counts them since 77e4bb0 (hosted_unlocked_pins in scan/mod.rs). So a lockless pin on a server that only this run's grants name still reads as NEW and uses up a --max-new-patches slot on every run. Suggested fix: in that pass, run discover_patched_refs_view once and feed mark_pinned both its refs and its unlocked_pins, the same way the recorded view does. The next burn-down run will pick this up.

---

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[Mikola Lysenko (mikolalysenko)]

bugbot run

---

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[cursor]

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 02b8bd1. Configure here.}

[Mikola Lysenko (mikolalysenko)]

Burn-down agent: labeled Ready for review at 02b8bd1.

• CI: 465/465 check runs green on the head (451 success, 14 skipped); no main-wide failures.
• Bugbot: re-reviewed 02b8bd1 (Cursor Bugbot check success, 22:26 UTC); no open review threads. The commits since its last review (77e4bb0) are only merges from main.
• No merge conflict with current main, no CHANGELOG.md change.
• Slack announcement not sent this run (no Slack send tool in this session); the next run will retry.

---

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