feat(twap-monitor): index ConditionalOrderCreated → local-store (BLEU-826) - #3
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`on_event(Event::Logs)` decodes each log against
`ComposableCoW.ConditionalOrderCreated` via `alloy_sol_types`,
extracts `(owner, params)`, and writes `watch:{owner}:{params_hash}`
to local-store with the abi-encoded `ConditionalOrderParams` as
the value. BLEU-827 reads this back via `list-keys("watch:")` and
the value is exactly the `(handler, salt, staticInput)` tuple the
poll path passes to `getTradeableOrderWithSignature`.
Idempotency: `local_store::set` overwrites in place, so re-org
replay or overlapping subscription windows produce no observable
side effect.
Resilience: `decode_conditional_order_created` returns `None`
when topic0 does not match the event signature or the payload
fails ABI decoding. Adjacent events on the same subscription
(MerkleRootSet, SwapGuardSet) are silently skipped instead of
short-circuiting the batch. The fn is on plain slices so the
host-free unit tests cover well-formed / wrong-topic / empty-
topics without wit-bindgen scaffolding.
Block, Tick, and Message variants of `Event` are left unhandled
in this PR — `Event::Block` dispatch lands in BLEU-827 (poll
path); the other two are not used by this module.
Adds `alloy-primitives` as a direct dep so the topic/data plumbing
does not rely on alloy types leaking through `cowprotocol`'s
re-exports.
`cargo build --target wasm32-wasip2 --release -p twap-monitor`
emits a 96 KB .wasm (up from the 65 KB skeleton because of the
alloy + cowprotocol composable types now linked in).
This was referenced Jun 15, 2026
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12 review threads addressed end-to-end. Net diff is -720 lines despite adding ~200 lines of new helpers + tests, because the WitBindgenHost adapter deduplication alone wipes ~400 lines. Per-thread: #1 (balance-tracker architecture): refactored to match the M3 host-trait+adapter split the other 4 modules use. Created `strategy.rs` with `on_block(&impl Host, ...)`, moved check_one / fetch_balance / parse_balance_hex / parse_settings into it, converted parse_config to use SDK config helpers + typed HostError instead of String. Added 3 MockHost-driven tests covering first-seen-above-threshold, below-threshold-persist, and error-does-not-abort-loop. #2 + #3 (WitBindgenHost dedup): new `shepherd_sdk::bind_host_via_wit_bindgen!()` declarative macro. Single source of truth in `crates/shepherd-sdk/src/wit_bindgen_macro.rs`; the 4 trait impls + convert_err / sdk_err_into_wit / convert_level collapse to one macro invocation per module. Migrated all 5 modules (twap-monitor, ethflow-watcher, price-alert, stop-loss, balance-tracker). Each module's lib.rs lost ~80 lines. #4 (scale_decimal + config_get dup): new `shepherd_sdk::config` with `get_required`, `get_optional`, `scale_decimal`, and a typed `ConfigError` enum (host-neutral). price-alert + stop-loss consume the SDK helpers; their local duplicates were deleted. Module-level decimal-parsing tests removed (covered by 7 SDK tests + 4 proptest cases now). #5 (Chainlink dup): new `shepherd_sdk::chain::chainlink` with `read_latest_answer(host, chain_id, oracle, domain) -> Option<I256>`. Encapsulates the eth_call → parse → ABI decode flow + Warn logging. price-alert + stop-loss now call the helper; their local AggregatorV3 sol! definitions + read_oracle / on_block oracle plumbing was deleted. SDK ships with 3 StubHost tests covering happy path, host error, and garbage-hex. #6 (WIT world capability elision): added new "Capability enforcement vs. the WIT world" section to ADR-0009 documenting that price-alert + balance-tracker compile against the shepherd:cow/shepherd supertype but their manifests omit cow-api, and that boot success depends on wasm-tools' unused- import elision. Flagged as load-bearing; M5 macro hardening path documented. #7 (poll-time revert classification inert): filed COW-1082 for the host-side fix (forward structured eth_call error data into HostError.data; analogous to COW-1075 for orderbook). #8 (classify_api_error retry-default unbounded): filed COW-1083 for the rate-limit / max-retry follow-up on the backoff: marker. #9 (RetryAction::Backoff dead variant): no code change; replied to thread clarifying it is reserved API surface waiting on a richer upstream retry_hint shape (open question for mfw78). #10 (no proptest anywhere): added `proptest` to shepherd-sdk dev-dependencies. New `crates/shepherd-sdk/src/proptests.rs` with 6 properties covering eth_call_params/parse_eth_call_result round-trip, parse_eth_call_result rejection on unquoted input, config::scale_decimal round-trip + sign-preservation, U256 LE byte round-trip, and no-panic guards for decode_revert_hex + gpv2_to_order_data marker dispatch. #11 (ethflow chain capability least-privilege): moved `chain` from required to optional in `modules/ethflow-watcher/module.toml`, mirroring the M2 mirror fix already applied. #12 (ADR-0009 test-count census): dropped the "145 host tests (twap 20, ethflow 12, ...)" breakdown; kept the qualitative claim. CI is now the authoritative count. Drive-by: alloy-sol-types moved from regular to dev-dependencies in price-alert and stop-loss now that the Chainlink ABI helper is inside shepherd-sdk and the modules only use sol! in their test helpers. Validation: - cargo test --workspace: every crate green; 5 modules + SDK + sdk-test + engine all pass. 8 host tests gained on balance-tracker; 6 proptest props gained on shepherd-sdk; 3 Chainlink helper tests gained. - cargo clippy --workspace --all-targets -- -D warnings: clean. - cargo fmt --check: clean. - cargo build --target wasm32-wasip2 --release for all 5 modules: clean. - Zero em-dashes in source code added.
brunota20
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Jun 25, 2026
12 review threads addressed end-to-end. Net diff is -720 lines despite adding ~200 lines of new helpers + tests, because the WitBindgenHost adapter deduplication alone wipes ~400 lines. Per-thread: #1 (balance-tracker architecture): refactored to match the M3 host-trait+adapter split the other 4 modules use. Created `strategy.rs` with `on_block(&impl Host, ...)`, moved check_one / fetch_balance / parse_balance_hex / parse_settings into it, converted parse_config to use SDK config helpers + typed HostError instead of String. Added 3 MockHost-driven tests covering first-seen-above-threshold, below-threshold-persist, and error-does-not-abort-loop. #2 + #3 (WitBindgenHost dedup): new `shepherd_sdk::bind_host_via_wit_bindgen!()` declarative macro. Single source of truth in `crates/shepherd-sdk/src/wit_bindgen_macro.rs`; the 4 trait impls + convert_err / sdk_err_into_wit / convert_level collapse to one macro invocation per module. Migrated all 5 modules (twap-monitor, ethflow-watcher, price-alert, stop-loss, balance-tracker). Each module's lib.rs lost ~80 lines. #4 (scale_decimal + config_get dup): new `shepherd_sdk::config` with `get_required`, `get_optional`, `scale_decimal`, and a typed `ConfigError` enum (host-neutral). price-alert + stop-loss consume the SDK helpers; their local duplicates were deleted. Module-level decimal-parsing tests removed (covered by 7 SDK tests + 4 proptest cases now). #5 (Chainlink dup): new `shepherd_sdk::chain::chainlink` with `read_latest_answer(host, chain_id, oracle, domain) -> Option<I256>`. Encapsulates the eth_call → parse → ABI decode flow + Warn logging. price-alert + stop-loss now call the helper; their local AggregatorV3 sol! definitions + read_oracle / on_block oracle plumbing was deleted. SDK ships with 3 StubHost tests covering happy path, host error, and garbage-hex. #6 (WIT world capability elision): added new "Capability enforcement vs. the WIT world" section to ADR-0009 documenting that price-alert + balance-tracker compile against the shepherd:cow/shepherd supertype but their manifests omit cow-api, and that boot success depends on wasm-tools' unused- import elision. Flagged as load-bearing; M5 macro hardening path documented. #7 (poll-time revert classification inert): filed COW-1082 for the host-side fix (forward structured eth_call error data into HostError.data; analogous to COW-1075 for orderbook). #8 (classify_api_error retry-default unbounded): filed COW-1083 for the rate-limit / max-retry follow-up on the backoff: marker. #9 (RetryAction::Backoff dead variant): no code change; replied to thread clarifying it is reserved API surface waiting on a richer upstream retry_hint shape (open question for mfw78). #10 (no proptest anywhere): added `proptest` to shepherd-sdk dev-dependencies. New `crates/shepherd-sdk/src/proptests.rs` with 6 properties covering eth_call_params/parse_eth_call_result round-trip, parse_eth_call_result rejection on unquoted input, config::scale_decimal round-trip + sign-preservation, U256 LE byte round-trip, and no-panic guards for decode_revert_hex + gpv2_to_order_data marker dispatch. #11 (ethflow chain capability least-privilege): moved `chain` from required to optional in `modules/ethflow-watcher/module.toml`, mirroring the M2 mirror fix already applied. #12 (ADR-0009 test-count census): dropped the "145 host tests (twap 20, ethflow 12, ...)" breakdown; kept the qualitative claim. CI is now the authoritative count. Drive-by: alloy-sol-types moved from regular to dev-dependencies in price-alert and stop-loss now that the Chainlink ABI helper is inside shepherd-sdk and the modules only use sol! in their test helpers. Validation: - cargo test --workspace: every crate green; 5 modules + SDK + sdk-test + engine all pass. 8 host tests gained on balance-tracker; 6 proptest props gained on shepherd-sdk; 3 Chainlink helper tests gained. - cargo clippy --workspace --all-targets -- -D warnings: clean. - cargo fmt --check: clean. - cargo build --target wasm32-wasip2 --release for all 5 modules: clean. - Zero em-dashes in source code added.
brunota20
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Jun 25, 2026
12 review threads addressed end-to-end. Net diff is -720 lines despite adding ~200 lines of new helpers + tests, because the WitBindgenHost adapter deduplication alone wipes ~400 lines. Per-thread: #1 (balance-tracker architecture): refactored to match the M3 host-trait+adapter split the other 4 modules use. Created `strategy.rs` with `on_block(&impl Host, ...)`, moved check_one / fetch_balance / parse_balance_hex / parse_settings into it, converted parse_config to use SDK config helpers + typed HostError instead of String. Added 3 MockHost-driven tests covering first-seen-above-threshold, below-threshold-persist, and error-does-not-abort-loop. #2 + #3 (WitBindgenHost dedup): new `shepherd_sdk::bind_host_via_wit_bindgen!()` declarative macro. Single source of truth in `crates/shepherd-sdk/src/wit_bindgen_macro.rs`; the 4 trait impls + convert_err / sdk_err_into_wit / convert_level collapse to one macro invocation per module. Migrated all 5 modules (twap-monitor, ethflow-watcher, price-alert, stop-loss, balance-tracker). Each module's lib.rs lost ~80 lines. #4 (scale_decimal + config_get dup): new `shepherd_sdk::config` with `get_required`, `get_optional`, `scale_decimal`, and a typed `ConfigError` enum (host-neutral). price-alert + stop-loss consume the SDK helpers; their local duplicates were deleted. Module-level decimal-parsing tests removed (covered by 7 SDK tests + 4 proptest cases now). #5 (Chainlink dup): new `shepherd_sdk::chain::chainlink` with `read_latest_answer(host, chain_id, oracle, domain) -> Option<I256>`. Encapsulates the eth_call → parse → ABI decode flow + Warn logging. price-alert + stop-loss now call the helper; their local AggregatorV3 sol! definitions + read_oracle / on_block oracle plumbing was deleted. SDK ships with 3 StubHost tests covering happy path, host error, and garbage-hex. #6 (WIT world capability elision): added new "Capability enforcement vs. the WIT world" section to ADR-0009 documenting that price-alert + balance-tracker compile against the shepherd:cow/shepherd supertype but their manifests omit cow-api, and that boot success depends on wasm-tools' unused- import elision. Flagged as load-bearing; M5 macro hardening path documented. #7 (poll-time revert classification inert): filed COW-1082 for the host-side fix (forward structured eth_call error data into HostError.data; analogous to COW-1075 for orderbook). #8 (classify_api_error retry-default unbounded): filed COW-1083 for the rate-limit / max-retry follow-up on the backoff: marker. #9 (RetryAction::Backoff dead variant): no code change; replied to thread clarifying it is reserved API surface waiting on a richer upstream retry_hint shape (open question for mfw78). #10 (no proptest anywhere): added `proptest` to shepherd-sdk dev-dependencies. New `crates/shepherd-sdk/src/proptests.rs` with 6 properties covering eth_call_params/parse_eth_call_result round-trip, parse_eth_call_result rejection on unquoted input, config::scale_decimal round-trip + sign-preservation, U256 LE byte round-trip, and no-panic guards for decode_revert_hex + gpv2_to_order_data marker dispatch. #11 (ethflow chain capability least-privilege): moved `chain` from required to optional in `modules/ethflow-watcher/module.toml`, mirroring the M2 mirror fix already applied. #12 (ADR-0009 test-count census): dropped the "145 host tests (twap 20, ethflow 12, ...)" breakdown; kept the qualitative claim. CI is now the authoritative count. Drive-by: alloy-sol-types moved from regular to dev-dependencies in price-alert and stop-loss now that the Chainlink ABI helper is inside shepherd-sdk and the modules only use sol! in their test helpers. Validation: - cargo test --workspace: every crate green; 5 modules + SDK + sdk-test + engine all pass. 8 host tests gained on balance-tracker; 6 proptest props gained on shepherd-sdk; 3 Chainlink helper tests gained. - cargo clippy --workspace --all-targets -- -D warnings: clean. - cargo fmt --check: clean. - cargo build --target wasm32-wasip2 --release for all 5 modules: clean. - Zero em-dashes in source code added.
brunota20
added a commit
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Jun 25, 2026
12 review threads addressed end-to-end. Net diff is -720 lines despite adding ~200 lines of new helpers + tests, because the WitBindgenHost adapter deduplication alone wipes ~400 lines. Per-thread: #1 (balance-tracker architecture): refactored to match the M3 host-trait+adapter split the other 4 modules use. Created `strategy.rs` with `on_block(&impl Host, ...)`, moved check_one / fetch_balance / parse_balance_hex / parse_settings into it, converted parse_config to use SDK config helpers + typed HostError instead of String. Added 3 MockHost-driven tests covering first-seen-above-threshold, below-threshold-persist, and error-does-not-abort-loop. #2 + #3 (WitBindgenHost dedup): new `shepherd_sdk::bind_host_via_wit_bindgen!()` declarative macro. Single source of truth in `crates/shepherd-sdk/src/wit_bindgen_macro.rs`; the 4 trait impls + convert_err / sdk_err_into_wit / convert_level collapse to one macro invocation per module. Migrated all 5 modules (twap-monitor, ethflow-watcher, price-alert, stop-loss, balance-tracker). Each module's lib.rs lost ~80 lines. #4 (scale_decimal + config_get dup): new `shepherd_sdk::config` with `get_required`, `get_optional`, `scale_decimal`, and a typed `ConfigError` enum (host-neutral). price-alert + stop-loss consume the SDK helpers; their local duplicates were deleted. Module-level decimal-parsing tests removed (covered by 7 SDK tests + 4 proptest cases now). #5 (Chainlink dup): new `shepherd_sdk::chain::chainlink` with `read_latest_answer(host, chain_id, oracle, domain) -> Option<I256>`. Encapsulates the eth_call → parse → ABI decode flow + Warn logging. price-alert + stop-loss now call the helper; their local AggregatorV3 sol! definitions + read_oracle / on_block oracle plumbing was deleted. SDK ships with 3 StubHost tests covering happy path, host error, and garbage-hex. #6 (WIT world capability elision): added new "Capability enforcement vs. the WIT world" section to ADR-0009 documenting that price-alert + balance-tracker compile against the shepherd:cow/shepherd supertype but their manifests omit cow-api, and that boot success depends on wasm-tools' unused- import elision. Flagged as load-bearing; M5 macro hardening path documented. #7 (poll-time revert classification inert): filed COW-1082 for the host-side fix (forward structured eth_call error data into HostError.data; analogous to COW-1075 for orderbook). #8 (classify_api_error retry-default unbounded): filed COW-1083 for the rate-limit / max-retry follow-up on the backoff: marker. #9 (RetryAction::Backoff dead variant): no code change; replied to thread clarifying it is reserved API surface waiting on a richer upstream retry_hint shape (open question for mfw78). #10 (no proptest anywhere): added `proptest` to shepherd-sdk dev-dependencies. New `crates/shepherd-sdk/src/proptests.rs` with 6 properties covering eth_call_params/parse_eth_call_result round-trip, parse_eth_call_result rejection on unquoted input, config::scale_decimal round-trip + sign-preservation, U256 LE byte round-trip, and no-panic guards for decode_revert_hex + gpv2_to_order_data marker dispatch. #11 (ethflow chain capability least-privilege): moved `chain` from required to optional in `modules/ethflow-watcher/module.toml`, mirroring the M2 mirror fix already applied. #12 (ADR-0009 test-count census): dropped the "145 host tests (twap 20, ethflow 12, ...)" breakdown; kept the qualitative claim. CI is now the authoritative count. Drive-by: alloy-sol-types moved from regular to dev-dependencies in price-alert and stop-loss now that the Chainlink ABI helper is inside shepherd-sdk and the modules only use sol! in their test helpers. Validation: - cargo test --workspace: every crate green; 5 modules + SDK + sdk-test + engine all pass. 8 host tests gained on balance-tracker; 6 proptest props gained on shepherd-sdk; 3 Chainlink helper tests gained. - cargo clippy --workspace --all-targets -- -D warnings: clean. - cargo fmt --check: clean. - cargo build --target wasm32-wasip2 --release for all 5 modules: clean. - Zero em-dashes in source code added.
brunota20
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Jun 25, 2026
…face Audit reference: milestone-rubric-grant-audit-2026-06-25.md, Major #3 (`[u8; 32]` for protocol hash across SDK public boundary). The rubric explicitly calls out: "Newtypes for protocol IDs (no raw `[u8; 32]` across module boundaries)." `B256` is already in `shepherd_sdk::prelude` so the swap costs callers nothing - both twap-monitor and ethflow-watcher were holding the appData as `B256` already and reaching through `.0` to satisfy the prior signature. Changes: - `resolve_app_data(host, chain_id, &B256)` (was `&[u8; 32]`) - `encode_hex(&B256)` internal helper - Doctest + 5 unit tests rewritten against `B256::from(bytes)` and `B256::from_slice(EMPTY_APP_DATA_HASH.as_slice())`. Coverage stays identical. - Call sites in twap-monitor and ethflow-watcher drop the `.0` reach-through; pass `&order.appData` directly. No public surface beyond `shepherd-sdk` consumes this function; external module crates in the workspace are the only consumers and both land in the same commit.
brunota20
added a commit
that referenced
this pull request
Jun 25, 2026
12 review threads addressed end-to-end. Net diff is -720 lines despite adding ~200 lines of new helpers + tests, because the WitBindgenHost adapter deduplication alone wipes ~400 lines. Per-thread: #1 (balance-tracker architecture): refactored to match the M3 host-trait+adapter split the other 4 modules use. Created `strategy.rs` with `on_block(&impl Host, ...)`, moved check_one / fetch_balance / parse_balance_hex / parse_settings into it, converted parse_config to use SDK config helpers + typed HostError instead of String. Added 3 MockHost-driven tests covering first-seen-above-threshold, below-threshold-persist, and error-does-not-abort-loop. #2 + #3 (WitBindgenHost dedup): new `shepherd_sdk::bind_host_via_wit_bindgen!()` declarative macro. Single source of truth in `crates/shepherd-sdk/src/wit_bindgen_macro.rs`; the 4 trait impls + convert_err / sdk_err_into_wit / convert_level collapse to one macro invocation per module. Migrated all 5 modules (twap-monitor, ethflow-watcher, price-alert, stop-loss, balance-tracker). Each module's lib.rs lost ~80 lines. #4 (scale_decimal + config_get dup): new `shepherd_sdk::config` with `get_required`, `get_optional`, `scale_decimal`, and a typed `ConfigError` enum (host-neutral). price-alert + stop-loss consume the SDK helpers; their local duplicates were deleted. Module-level decimal-parsing tests removed (covered by 7 SDK tests + 4 proptest cases now). #5 (Chainlink dup): new `shepherd_sdk::chain::chainlink` with `read_latest_answer(host, chain_id, oracle, domain) -> Option<I256>`. Encapsulates the eth_call → parse → ABI decode flow + Warn logging. price-alert + stop-loss now call the helper; their local AggregatorV3 sol! definitions + read_oracle / on_block oracle plumbing was deleted. SDK ships with 3 StubHost tests covering happy path, host error, and garbage-hex. #6 (WIT world capability elision): added new "Capability enforcement vs. the WIT world" section to ADR-0009 documenting that price-alert + balance-tracker compile against the shepherd:cow/shepherd supertype but their manifests omit cow-api, and that boot success depends on wasm-tools' unused- import elision. Flagged as load-bearing; M5 macro hardening path documented. #7 (poll-time revert classification inert): filed COW-1082 for the host-side fix (forward structured eth_call error data into HostError.data; analogous to COW-1075 for orderbook). #8 (classify_api_error retry-default unbounded): filed COW-1083 for the rate-limit / max-retry follow-up on the backoff: marker. #9 (RetryAction::Backoff dead variant): no code change; replied to thread clarifying it is reserved API surface waiting on a richer upstream retry_hint shape (open question for mfw78). #10 (no proptest anywhere): added `proptest` to shepherd-sdk dev-dependencies. New `crates/shepherd-sdk/src/proptests.rs` with 6 properties covering eth_call_params/parse_eth_call_result round-trip, parse_eth_call_result rejection on unquoted input, config::scale_decimal round-trip + sign-preservation, U256 LE byte round-trip, and no-panic guards for decode_revert_hex + gpv2_to_order_data marker dispatch. #11 (ethflow chain capability least-privilege): moved `chain` from required to optional in `modules/ethflow-watcher/module.toml`, mirroring the M2 mirror fix already applied. #12 (ADR-0009 test-count census): dropped the "145 host tests (twap 20, ethflow 12, ...)" breakdown; kept the qualitative claim. CI is now the authoritative count. Drive-by: alloy-sol-types moved from regular to dev-dependencies in price-alert and stop-loss now that the Chainlink ABI helper is inside shepherd-sdk and the modules only use sol! in their test helpers. Validation: - cargo test --workspace: every crate green; 5 modules + SDK + sdk-test + engine all pass. 8 host tests gained on balance-tracker; 6 proptest props gained on shepherd-sdk; 3 Chainlink helper tests gained. - cargo clippy --workspace --all-targets -- -D warnings: clean. - cargo fmt --check: clean. - cargo build --target wasm32-wasip2 --release for all 5 modules: clean. - Zero em-dashes in source code added.
brunota20
added a commit
that referenced
this pull request
Jun 25, 2026
…face Audit reference: milestone-rubric-grant-audit-2026-06-25.md, Major #3 (`[u8; 32]` for protocol hash across SDK public boundary). The rubric explicitly calls out: "Newtypes for protocol IDs (no raw `[u8; 32]` across module boundaries)." `B256` is already in `shepherd_sdk::prelude` so the swap costs callers nothing - both twap-monitor and ethflow-watcher were holding the appData as `B256` already and reaching through `.0` to satisfy the prior signature. Changes: - `resolve_app_data(host, chain_id, &B256)` (was `&[u8; 32]`) - `encode_hex(&B256)` internal helper - Doctest + 5 unit tests rewritten against `B256::from(bytes)` and `B256::from_slice(EMPTY_APP_DATA_HASH.as_slice())`. Coverage stays identical. - Call sites in twap-monitor and ethflow-watcher drop the `.0` reach-through; pass `&order.appData` directly. No public surface beyond `shepherd-sdk` consumes this function; external module crates in the workspace are the only consumers and both land in the same commit.
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Summary
on_event(Event::Logs)decodes each log againstComposableCoW.ConditionalOrderCreatedviaalloy_sol_typesand writeswatch:{owner}:{params_hash}→abi_encode(params)to local-store.Decode fn is on plain slices so unit tests cover well-formed / wrong-topic / empty-topics without wit-bindgen scaffolding. Block / Tick / Message dispatch is left for BLEU-827 / future PRs.
Stacks on #2 (BLEU-825 skeleton). Base will switch to `dev/m2-base` once #2 merges.
Linear: BLEU-826. Ref ADR-0006.
Test plan