lib

commit 3fad608393e764c425a0bda27135a814bbc8d392
parent f135f99ed5b7a7651dd2ef88cb5cb9cd91839910
Author: triesap <tyson@radroots.org>
Date:   Thu, 30 Jul 2026 00:00:45 +0000

event-codec: consolidate manifest generation

- derive registry inventory metadata from the versioned event-contract authority
- share canonical JSON and digest validation across committed manifests
- make knowledge manifest writes atomic, strict, and freshness checked

Diffstat:
M
crates/event_codec/src/manifest.rs
 | 
104
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------
M
crates/event_codec/src/manifest/registry_v7.rs
 | 
26
++++++++++++++------------
M
crates/event_store/contracts/source_maintenance_v1.manifest.json
 | 
8
++++----
M
crates/event_store/contracts/source_maintenance_v1.manifest.sha256
 | 
2
+-
M
crates/event_store/src/generated/source_maintenance_manifest.rs
 | 
4
++--
M
tools/xtask/src/contract.rs
 | 
185
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------
M
tools/xtask/src/contract/artifact_bundle.rs
 | 
27
+++++++++++++++++++++++++++
M
tools/xtask/src/contract/registry_v7.rs
 | 
34
++++------------------------------

8 files changed, 298 insertions(+), 92 deletions(-)
diff --git a/crates/event_codec/src/manifest.rs b/crates/event_codec/src/manifest.rs
@@ -9,10 +9,10 @@ use radroots_event::contract::VERSION;
 use radroots_event::contract::{
     ContentSchema, ContractFamily, EventClass, EventContract, EventDiscriminator, EventPrivacy,
     EventStability, NostrStandard, RADROOTS_EVENT_CONTRACT_REGISTRY_VERSION, Reducer,
-    TagCardinality, TagContract, TagSemantic, TagValueType, all_event_contracts,
-    event_contract_family, kind_contract,
+    TagCardinality, TagContract, TagSemantic, TagValueType, all_event_contracts_registry_v7,
+    event_contract_family, kind_contract_registry_v7,
 };
-use serde::{Deserialize, Serialize};
+use serde::{Deserialize, Serialize, de::DeserializeOwned};
 use sha2::{Digest, Sha256};
 
 pub mod registry_v7;
@@ -37,6 +37,7 @@ const HISTORICAL_KNOWLEDGE_CONTRACT_INTRODUCTIONS: [(&str, &str); 11] = [
 ];
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(deny_unknown_fields)]
 pub struct RadrootsKnowledgeContractManifest {
     pub schema_version: u32,
     pub registry_version: u32,
@@ -47,6 +48,7 @@ pub struct RadrootsKnowledgeContractManifest {
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(deny_unknown_fields)]
 pub struct RadrootsKnowledgeContractManifestEntry {
     pub contract_id: String,
     pub kind: u32,
@@ -104,6 +106,7 @@ pub enum RadrootsKnowledgeManifestDiscriminator {
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(deny_unknown_fields)]
 pub struct RadrootsKnowledgeManifestTagContract {
     pub name: String,
     pub cardinality: String,
@@ -113,6 +116,7 @@ pub struct RadrootsKnowledgeManifestTagContract {
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(deny_unknown_fields)]
 pub struct RadrootsKnowledgeManifestCodecSupport {
     pub encode: bool,
     pub decode: bool,
@@ -122,7 +126,7 @@ pub struct RadrootsKnowledgeManifestCodecSupport {
 }
 
 pub fn knowledge_contract_manifest() -> RadrootsKnowledgeContractManifest {
-    let mut contracts = all_event_contracts()
+    let mut contracts = all_event_contracts_registry_v7()
         .iter()
         .filter(|contract| event_contract_family(contract) == Some(ContractFamily::Knowledge))
         .map(manifest_entry)
@@ -140,18 +144,42 @@ pub fn knowledge_contract_manifest() -> RadrootsKnowledgeContractManifest {
 }
 
 pub fn contract_manifest_json() -> Result<String, serde_json::Error> {
-    let mut json = serde_json::to_string_pretty(&knowledge_contract_manifest())?;
-    json.push('\n');
-    Ok(json)
+    canonical_manifest_json(&knowledge_contract_manifest())
 }
 
 pub fn contract_manifest_sha256() -> Result<String, serde_json::Error> {
     let json = contract_manifest_json()?;
-    Ok(hex::encode(Sha256::digest(json.as_bytes())))
+    Ok(manifest_sha256(&json))
+}
+
+pub fn parse_knowledge_contract_manifest_json(
+    json: &str,
+) -> Result<RadrootsKnowledgeContractManifest, serde_json::Error> {
+    serde_json::from_str(json)
+}
+
+pub(super) fn canonical_manifest_json<T>(manifest: &T) -> Result<String, serde_json::Error>
+where
+    T: Serialize,
+{
+    let mut json = serde_json::to_string_pretty(manifest)?;
+    json.push('\n');
+    Ok(json)
+}
+
+pub(super) fn parse_manifest_json<T>(json: &str) -> Result<T, serde_json::Error>
+where
+    T: DeserializeOwned,
+{
+    serde_json::from_str(json)
+}
+
+pub(super) fn manifest_sha256(json: &str) -> String {
+    hex::encode(Sha256::digest(json.as_bytes()))
 }
 
 fn manifest_entry(contract: &EventContract) -> RadrootsKnowledgeContractManifestEntry {
-    let standard = kind_contract(contract.kind)
+    let standard = kind_contract_registry_v7(contract.kind)
         .map(|contract| standard_label(contract.standard))
         .unwrap_or("unknown");
     let mvp_support = mvp_sdk_and_wasm_tag_support(contract.id);
@@ -453,13 +481,67 @@ fn reducer_label(value: Reducer) -> &'static str {
 
 #[cfg(test)]
 mod tests {
-    use super::{discriminator_manifest, reducer_label, standard_label};
+    use super::{
+        contract_manifest_json, contract_manifest_sha256, discriminator_manifest,
+        knowledge_contract_manifest, parse_knowledge_contract_manifest_json, reducer_label,
+        standard_label,
+    };
     use radroots_event::{
-        contract::{EventDiscriminator, NostrStandard, Reducer},
+        contract::{
+            ContractFamily, EventDiscriminator, NostrStandard, Reducer,
+            all_event_contracts_registry_v7, event_contract_family,
+        },
         listing::classified::ClassifiedListingPartition,
     };
 
     #[test]
+    fn knowledge_manifest_is_derived_from_authority_with_stable_order_and_count() {
+        let manifest = knowledge_contract_manifest();
+        let authority_count = all_event_contracts_registry_v7()
+            .iter()
+            .filter(|contract| event_contract_family(contract) == Some(ContractFamily::Knowledge))
+            .count();
+
+        assert_eq!(manifest.contract_count, authority_count);
+        assert_eq!(manifest.contract_count, manifest.contracts.len());
+        assert!(
+            manifest
+                .contracts
+                .windows(2)
+                .all(|pair| pair[0].contract_id < pair[1].contract_id)
+        );
+    }
+
+    #[test]
+    fn knowledge_manifest_json_is_canonical_repeatable_and_strictly_parsed() {
+        let first = contract_manifest_json().expect("serialize manifest");
+        let second = contract_manifest_json().expect("serialize manifest again");
+
+        assert_eq!(first, second);
+        assert!(first.ends_with('\n'));
+        assert!(!first.ends_with("\n\n"));
+        assert!(!first.contains("\r\n"));
+        assert_eq!(
+            parse_knowledge_contract_manifest_json(&first).expect("parse manifest"),
+            knowledge_contract_manifest()
+        );
+        assert_eq!(
+            contract_manifest_sha256().expect("hash manifest"),
+            contract_manifest_sha256().expect("hash manifest again")
+        );
+
+        let mut unknown =
+            serde_json::to_value(knowledge_contract_manifest()).expect("manifest value");
+        unknown
+            .as_object_mut()
+            .expect("manifest object")
+            .insert("unknown".to_string(), serde_json::Value::Bool(true));
+        assert!(
+            serde_json::from_value::<super::RadrootsKnowledgeContractManifest>(unknown).is_err()
+        );
+    }
+
+    #[test]
     fn classified_listing_standard_label_is_nip99() {
         assert_eq!(standard_label(NostrStandard::Nip99), "nip99");
     }
diff --git a/crates/event_codec/src/manifest/registry_v7.rs b/crates/event_codec/src/manifest/registry_v7.rs
@@ -8,19 +8,23 @@ use alloc::{
 use radroots_event::{
     contract::{
         AuthorRole, ContentSchema, EventAuthoringPolicy, EventClass, EventContract,
-        EventDiscriminator, EventPrivacy, EventStability, KindContract, NostrStandard, Reducer,
-        TagCardinality, TagContract, TagSemantic, TagValueType, all_event_contracts_registry_v7,
-        all_kind_contracts_registry_v7,
+        EventDiscriminator, EventPrivacy, EventStability, KindContract, NostrStandard,
+        RADROOTS_EVENT_CONTRACT_REGISTRY_VERSION, Reducer, TagCardinality, TagContract,
+        TagSemantic, TagValueType, all_event_contracts_registry_v7, all_kind_contracts_registry_v7,
     },
     listing::classified::ClassifiedListingPartition,
 };
 use serde::{Deserialize, Serialize};
-use sha2::{Digest, Sha256};
+
+use super::{canonical_manifest_json, manifest_sha256, parse_manifest_json};
 
 pub const RADROOTS_EVENT_CONTRACT_REGISTRY_V7_INVENTORY_SCHEMA_VERSION: u32 = 1;
-pub const RADROOTS_EVENT_CONTRACT_REGISTRY_V7_VERSION: u32 = 7;
-pub const RADROOTS_EVENT_CONTRACT_REGISTRY_V7_KIND_COUNT: usize = 93;
-pub const RADROOTS_EVENT_CONTRACT_REGISTRY_V7_EVENT_COUNT: usize = 103;
+pub const RADROOTS_EVENT_CONTRACT_REGISTRY_V7_VERSION: u32 =
+    RADROOTS_EVENT_CONTRACT_REGISTRY_VERSION;
+pub const RADROOTS_EVENT_CONTRACT_REGISTRY_V7_KIND_COUNT: usize =
+    all_kind_contracts_registry_v7().len();
+pub const RADROOTS_EVENT_CONTRACT_REGISTRY_V7_EVENT_COUNT: usize =
+    all_event_contracts_registry_v7().len();
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(deny_unknown_fields)]
@@ -330,20 +334,18 @@ pub fn event_contract_registry_v7_inventory() -> RadrootsEventContractRegistryV7
 }
 
 pub fn event_contract_registry_v7_inventory_json() -> Result<String, serde_json::Error> {
-    let mut json = serde_json::to_string_pretty(&event_contract_registry_v7_inventory())?;
-    json.push('\n');
-    Ok(json)
+    canonical_manifest_json(&event_contract_registry_v7_inventory())
 }
 
 pub fn event_contract_registry_v7_inventory_sha256() -> Result<String, serde_json::Error> {
     let json = event_contract_registry_v7_inventory_json()?;
-    Ok(hex::encode(Sha256::digest(json.as_bytes())))
+    Ok(manifest_sha256(&json))
 }
 
 pub fn parse_event_contract_registry_v7_inventory_json(
     json: &str,
 ) -> Result<RadrootsEventContractRegistryV7Inventory, serde_json::Error> {
-    serde_json::from_str(json)
+    parse_manifest_json(json)
 }
 
 fn kind_inventory_entry(
diff --git a/crates/event_store/contracts/source_maintenance_v1.manifest.json b/crates/event_store/contracts/source_maintenance_v1.manifest.json
@@ -845,8 +845,8 @@
     {
       "role": "artifact_transaction_authority",
       "path": "tools/xtask/src/contract/artifact_bundle.rs",
-      "byte_length": 38279,
-      "sha256": "f326ea57b56d40135f95b6b1e15961f66eed363337180a6d12a5ea903e1a9a29",
+      "byte_length": 39149,
+      "sha256": "3d1bba3980b80698d2a21e26caf7af6fe4d9dc4a7fbabc6e406b5d33928b457f",
       "hash_algorithm": "sha256_bytes_v1"
     },
     {
@@ -873,8 +873,8 @@
     {
       "role": "contract_command_authority",
       "path": "tools/xtask/src/contract.rs",
-      "byte_length": 503671,
-      "sha256": "82a33a2227fe63eed1d8ca5908f51f48c4ac4aa1d4527a7633980673fd9a6a30",
+      "byte_length": 508534,
+      "sha256": "43900769fc0d364ff6d693ec735312126b233774ca23d525997823409a4b783b",
       "hash_algorithm": "sha256_bytes_v1"
     },
     {
diff --git a/crates/event_store/contracts/source_maintenance_v1.manifest.sha256 b/crates/event_store/contracts/source_maintenance_v1.manifest.sha256
@@ -1 +1 @@
-7f98748038dc5fd409f681a63fdd4a6617aca9e0990a7e2606d79a04a66388b2
+667a3d5176a3f16d1abed0709a21c29f4c2bd8f06524b4e16e65bffd09ee1c8f
diff --git a/crates/event_store/src/generated/source_maintenance_manifest.rs b/crates/event_store/src/generated/source_maintenance_manifest.rs
@@ -1,8 +1,8 @@
 // @generated by `cargo xtask contract source-maintenance-manifest --write`; do not edit.
-pub(crate) const SOURCE_MAINTENANCE_MANIFEST_JSON: &str = "{\n  \"schema_version\": 1,\n  \"contract_id\": \"radroots_event_store.source_maintenance_v1\",\n  \"hook_id\": \"source_maintenance_v1\",\n  \"manifest_schema\": {\n    \"path\": \"crates/event_store/contracts/source_maintenance_v1.manifest.schema.json\",\n    \"byte_length\": 12315,\n    \"sha256\": \"96ea98a5abf3348b61565954cd34f2c622411d8dd34205ef04134bbe0e3d3f2b\",\n    \"hash_algorithm\": \"sha256_bytes_v1\"\n  },\n  \"predecessor\": {\n    \"hook_id\": \"food_availability_projection_v1\",\n    \"manifest\": {\n      \"path\": \"crates/event_store/contracts/food_availability_projection_v1.manifest.json\",\n      \"byte_length\": 17455,\n      \"sha256\": \"02dfe1b450fbdac16e718888215b4dd5c85d8975440fa21e8f439fb24c2b2990\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    }\n  },\n  \"migration\": {\n    \"version\": 4,\n    \"name\": \"source_maintenance\",\n    \"up\": {\n      \"path\": \"crates/event_store/migrations/0004_source_maintenance.up.sql\",\n      \"byte_length\": 19841,\n      \"sha256\": \"ab2724188f8d08c897eebea2533a635e7c74282a25e84e4c0c37e78b08837a43\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    \"down\": {\n      \"path\": \"crates/event_store/migrations/0004_source_maintenance.down.sql\",\n      \"byte_length\": 5172,\n      \"sha256\": \"fe44fd53c51545c08ea479b385e6781079dab70fc63da2a3c205d727a00ce860\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    \"schema_sha256\": \"074f85b663444ac150239ecd8441ea4a96ad83a798a55e22d2e5e2f7ee943a8c\",\n    \"catalog\": {\n      \"objects\": [\n        \"radroots_event_store_source_capacity_delete_guard\",\n        \"radroots_event_store_source_capacity_insert_guard\",\n        \"radroots_event_store_source_capacity_marker_close_guard\",\n        \"radroots_event_store_source_capacity_update_guard\",\n        \"radroots_event_store_source_capacity_v1\",\n        \"radroots_event_store_source_generation_capacity_advance\",\n        \"radroots_event_store_source_generation_capacity_guard\"\n      ],\n      \"replaced_objects\": [\n        \"radroots_event_store_food_availability_image_delete_guard\",\n        \"radroots_event_store_food_availability_projection_delete_guard\",\n        \"radroots_event_store_source_rebuild_marker_insert_guard\"\n      ],\n      \"tables\": [\n        \"radroots_event_store_source_capacity_v1\"\n      ],\n      \"fts5_tables\": []\n    }\n  },\n  \"source_maintenance\": {\n    \"version\": 1,\n    \"event_contract_registry_version\": 7,\n    \"capacity_authority_id\": \"radroots_event_store_source_capacity_v1\",\n    \"accounting\": {\n      \"algorithm\": \"sqlite_cast_blob_octet_sum_v1\",\n      \"raw_event_columns\": [\n        \"event_id\",\n        \"pubkey\",\n        \"tags_json\",\n        \"content\",\n        \"sig\",\n        \"raw_json\"\n      ],\n      \"raw_tag_columns\": [\n        \"event_id\",\n        \"tag_name\",\n        \"tag_value\",\n        \"tag_json\"\n      ],\n      \"nullable_raw_tag_columns\": [\n        \"tag_value\"\n      ]\n    },\n    \"limits\": {\n      \"raw_events\": 25000,\n      \"raw_tags\": 250000,\n      \"raw_event_text_bytes\": 67108864,\n      \"raw_tag_text_bytes\": 33554432,\n      \"retained_source_generations\": 8\n    },\n    \"reopen_validation\": {\n      \"mode\": \"bounded_full_raw_recount_v1\",\n      \"raw_event_rejection_scan_bound\": 25001,\n      \"raw_tag_rejection_scan_bound\": 250001,\n      \"generation_history_validation\": \"bounded_count_plus_active_ordinal_v1\",\n      \"retained_generation_rejection_scan_bound\": 9\n    },\n    \"rebuild_seal\": {\n      \"nip09_hook_id\": \"nip09_reconciliation_v1\",\n      \"nip09_manifest_sha256\": \"74af832420ffbaa9805e89df3c0b34f126a443e1598f757e3372f407f9003b77\",\n      \"food_hook_id\": \"food_availability_projection_v1\",\n      \"food_manifest_sha256\": \"02dfe1b450fbdac16e718888215b4dd5c85d8975440fa21e8f439fb24c2b2990\",\n      \"food_scope_fingerprint_sha256\": \"8b63c5ddc48a2cc7db69295238b96d5f814dba50427c80b4d0079f061e6d3de0\",\n      \"active_generation_authority\": \"radroots_event_store_source_state\",\n      \"marker_close_authority\": \"radroots_event_store_source_capacity_marker_close_guard\"\n    }\n  },\n  \"entry_points\": [\n    {\n      \"role\": \"migration_registry\",\n      \"rust_path\": \"radroots_event_store::migrations::EVENT_STORE_MIGRATIONS[3]\"\n    },\n    {\n      \"role\": \"migration_apply_hook\",\n      \"rust_path\": \"radroots_event_store::schema::apply_migration_hook\"\n    },\n    {\n      \"role\": \"migration_validation_hook\",\n      \"rust_path\": \"radroots_event_store::schema::validate_migration_hook_state\"\n    },\n    {\n      \"role\": \"capacity_query\",\n      \"rust_path\": \"radroots_event_store::RadrootsEventStore::source_capacity_v1\"\n    },\n    {\n      \"role\": \"raw_append_preflight\",\n      \"rust_path\": \"radroots_event_store::source_maintenance_v1::preflight_unique_raw_source_append_v1\"\n    },\n    {\n      \"role\": \"raw_append_advance\",\n      \"rust_path\": \"radroots_event_store::source_maintenance_v1::advance_source_capacity_after_insert_v1\"\n    },\n    {\n      \"role\": \"generation_append_preflight\",\n      \"rust_path\": \"radroots_event_store::source_maintenance_v1::preflight_source_generation_append_v1\"\n    },\n    {\n      \"role\": \"generation_rebuild_bind\",\n      \"rust_path\": \"radroots_event_store::source_maintenance_v1::bind_source_capacity_to_generation_v1\"\n    },\n    {\n      \"role\": \"sqlite_encoding_preflight\",\n      \"rust_path\": \"radroots_event_store::store::validate_main_database_encoding\"\n    },\n    {\n      \"role\": \"source_generation_history_rollback_guard\",\n      \"rust_path\": \"radroots_event_store::schema::validate_rollback_preserves_source_generation_history\"\n    },\n    {\n      \"role\": \"result_vector_executor\",\n      \"rust_path\": \"source_maintenance_v1_result_vector\"\n    }\n  ],\n  \"source_files\": [\n    {\n      \"role\": \"workspace_dependency_authority\",\n      \"path\": \"Cargo.toml\",\n      \"byte_length\": 12411,\n      \"sha256\": \"cad96f080b0cc9ac7ffda703c8807540c9cf89f47a2299b141e6e7949714bf9f\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"core_currency_value_authority\",\n      \"path\": \"crates/core/src/currency.rs\",\n      \"byte_length\": 4142,\n      \"sha256\": \"42e6da2d8d2fdd6955dc2d83e98dd00266e02bc910b69923b117662c05089d14\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"core_decimal_value_authority\",\n      \"path\": \"crates/core/src/decimal.rs\",\n      \"byte_length\": 7839,\n      \"sha256\": \"4b1d681a92d7a9e074bee7e1f20eb1499bb05bfc6528a6c9ba69fa7d00416550\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"core_money_value_authority\",\n      \"path\": \"crates/core/src/money.rs\",\n      \"byte_length\": 8025,\n      \"sha256\": \"3f30bc21e21951a62fdc5d4033736ed42a883df590e8403940775bd2edfeebc5\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"core_percent_value_authority\",\n      \"path\": \"crates/core/src/percent.rs\",\n      \"byte_length\": 2652,\n      \"sha256\": \"42ceab109881329f3539d06a0ee0381ab4359985fe185a18d58a9c9558c5eb7f\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"core_quantity_value_authority\",\n      \"path\": \"crates/core/src/quantity.rs\",\n      \"byte_length\": 6785,\n      \"sha256\": \"d14e619da3829cdaf3ca7385fb892d330c286c1e21455c135c37518cbb588b5f\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"core_quantity_price_value_authority\",\n      \"path\": \"crates/core/src/quantity_price.rs\",\n      \"byte_length\": 7061,\n      \"sha256\": 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\"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"event_codec_trade_facade\",\n      \"path\": \"crates/event_codec/src/trade/mod.rs\",\n      \"byte_length\": 21472,\n      \"sha256\": \"10cee4b6cd6429ac9eb00327a521bcd0982fae4de98bda77e4728fda002965d3\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"event_store_dependency_authority\",\n      \"path\": \"crates/event_store/Cargo.toml\",\n      \"byte_length\": 1550,\n      \"sha256\": \"9901a09402592ee873c255edf2e0c0d770105401255679d86ad47c35cb159d72\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"event_store_error_and_limits\",\n      \"path\": \"crates/event_store/src/error.rs\",\n      \"byte_length\": 19464,\n      \"sha256\": \"47be522eb0541619683f8b30eb6f66da821b65eb310a60815c81c7b7f3349947\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"generated_descriptor_registration\",\n      \"path\": \"crates/event_store/src/generated.rs\",\n      \"byte_length\": 144,\n      \"sha256\": \"6b0a8d6f249bd4fc3f878d37cb5e418680f0f1be2d9eec2518dedf03efc47121\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"public_surface\",\n      \"path\": \"crates/event_store/src/lib.rs\",\n      \"byte_length\": 3844,\n      \"sha256\": \"3cd9653bcb752fb3c4442d4904b98a0a6208011a9a238125b7b7073d7f4e312b\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"migration_registry\",\n      \"path\": \"crates/event_store/src/migrations.rs\",\n      \"byte_length\": 73585,\n      \"sha256\": \"a47477d04759ec6e71d14d3d05459864eae78fce0e3c2481a1b03147f04637f7\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"predecessor_model_public_surface\",\n      \"path\": \"crates/event_store/src/model.rs\",\n      \"byte_length\": 32314,\n      \"sha256\": \"d7ffa47719783c9f08cb4e00fbe47123cf0310ead06f77d3ad1d81edfda96b2c\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"event_store_reconciliation_v1_model\",\n      \"path\": \"crates/event_store/src/model/reconciliation_v1.rs\",\n      \"byte_length\": 10452,\n      \"sha256\": \"bd3a8f0efe6d4b2959ab8a5b8048cd940fd078dce842083be2386544722017ef\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"event_store_reconciliation_v1_ingest_model\",\n      \"path\": \"crates/event_store/src/model/ingest_reconciliation_v1.rs\",\n      \"byte_length\": 1594,\n      \"sha256\": \"27b02ef508b4df45a801ef72e9f92b43819ea6372a3936bc2507c67a42acd07a\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"addressable_transition_feed_model\",\n      \"path\": \"crates/event_store/src/model/addressable_transition_feed_v1.rs\",\n      \"byte_length\": 22229,\n      \"sha256\": \"e651952d73ed0a29d2b137076f56f699beada205ac84ed8a96834e86e343fa78\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"current_visibility_model\",\n      \"path\": \"crates/event_store/src/model/current_visibility_v1.rs\",\n      \"byte_length\": 5634,\n      \"sha256\": \"7d5b2b35ceb52d7472d68444515fa4a6aab43f6838b557aefff74fcebf487657\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"food_projection_model\",\n      \"path\": \"crates/event_store/src/model/food_availability_projection_v1.rs\",\n      \"byte_length\": 17109,\n      \"sha256\": \"2fd51989da7f07b3e80557fb1a4b89814126eb3ffd80023e42012f0242b0584d\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"source_generation_rebuild_authority\",\n      \"path\": \"crates/event_store/src/nip09/reconciliation_v1.rs\",\n      \"byte_length\": 184853,\n      \"sha256\": \"b6887f9f319809d401ac519137cfa78467ca26594cae53720a58a37ccc72757e\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"nip09_successor_result_vector_executor\",\n      \"path\": \"crates/event_store/tests/support/nip09_reconciliation_v1_result_vector_v2.rs\",\n      \"byte_length\": 18205,\n      \"sha256\": \"c632beee70dc777b8dd2a4f88cadb55296fee7aa5742e6e2c9f6d49f26ae2c78\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"schema_migration_and_reopen_authority\",\n      \"path\": \"crates/event_store/src/schema.rs\",\n      \"byte_length\": 146146,\n      \"sha256\": \"93b060e80d3edd73f86208e4bf698fa9d53eaf1eeb04526c9261fb8b5726fb0d\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"public_store_and_transaction_authority\",\n      \"path\": \"crates/event_store/src/store.rs\",\n      \"byte_length\": 393835,\n      \"sha256\": \"d47f5d8d95599783162533dcd26b0114160a098ddef3447fb2ee6648c3949e5f\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"addressable_transition_feed_store\",\n      \"path\": \"crates/event_store/src/store/addressable_transition_feed_v1.rs\",\n      \"byte_length\": 40216,\n      \"sha256\": \"31ed3390d279aee5261848386889cf256667759b9898be5607856a3f80fd7eb7\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"current_visibility_store\",\n      \"path\": \"crates/event_store/src/store/current_visibility_v1.rs\",\n      \"byte_length\": 15737,\n      \"sha256\": \"aa5d1bff7a5368cbac2b37906bb40f54bfc8aa6906bab34369569fdd105bf899\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"food_projection_store\",\n      \"path\": \"crates/event_store/src/store/food_availability_projection_v1.rs\",\n      \"byte_length\": 48927,\n      \"sha256\": \"78a96d441e2fbfdfc6f9e2787ae773e8fd6aa5c53ca10d658350b843c0d1537e\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"predecessor_post_core_v1_extension\",\n      \"path\": \"crates/event_store/src/store/post_core_extensions_v1.rs\",\n      \"byte_length\": 6569,\n      \"sha256\": \"f5bd8ddb45e1b2144895bd8da737fc92db051be1844ce7e8047a32b47376ce37\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"predecessor_post_core_v1_storage\",\n      \"path\": \"crates/event_store/src/store/post_core_storage_v1.rs\",\n      \"byte_length\": 16558,\n      \"sha256\": \"d88c1f7ff5cc0a19221ad893eb840d55c11535f13adf84ffb3076cbc18d4abf1\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"raw_ingest_capacity_authority\",\n      \"path\": \"crates/event_store/src/store/protocol_reconciliation_v1.rs\",\n      \"byte_length\": 29950,\n      \"sha256\": \"c72aaff06e4f35d0b4523c6625e83345879f9e15b9fe9563dccf589e5d01e277\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"predecessor_protocol_storage\",\n      \"path\": \"crates/event_store/src/store/protocol_storage_v1.rs\",\n      \"byte_length\": 10835,\n      \"sha256\": \"c82179b9f57968191f3e71dd008cc701787c62715ada74090eeecaa3b213076d\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"source_maintenance_runtime\",\n      \"path\": \"crates/event_store/src/source_maintenance_v1.rs\",\n      \"byte_length\": 51849,\n      \"sha256\": \"db43df5849c811d767a87bfa7884ce499400d0b169734e18242542a4415b3a51\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"predecessor_food_result_vector_executor\",\n      \"path\": \"crates/event_store/tests/food_availability_projection_v1_result_vector.rs\",\n      \"byte_length\": 34046,\n      \"sha256\": \"776903c6431ff07f26c6ad6b713db5628efce1a72f34d86de6e47d4404fa3a6d\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"artifact_transaction_authority\",\n      \"path\": \"tools/xtask/src/contract/artifact_bundle.rs\",\n      \"byte_length\": 38279,\n      \"sha256\": \"f326ea57b56d40135f95b6b1e15961f66eed363337180a6d12a5ea903e1a9a29\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"predecessor_successor_governance\",\n      \"path\": \"tools/xtask/src/contract/food_availability_projection.rs\",\n      \"byte_length\": 198991,\n      \"sha256\": \"36fd3d8b5dda3b0855a06a47dae14cae7f4cc84aaca9902c31477c218859fccc\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"transitive_predecessor_membership_governance\",\n      \"path\": \"tools/xtask/src/contract/nip09_reconciliation.rs\",\n      \"byte_length\": 842232,\n      \"sha256\": \"08c2cc956f0f055c8e25d99b5c05dd8f7f2b095c52efa125b7f05471302ef9f5\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"source_maintenance_governance\",\n      \"path\": \"tools/xtask/src/contract/source_maintenance.rs\",\n      \"byte_length\": 199270,\n      \"sha256\": \"148698b4f9f46bcad6af5ce84240153d5742b8ee2ce8b938539ede0da9ef9cdb\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"contract_command_authority\",\n      \"path\": \"tools/xtask/src/contract.rs\",\n      \"byte_length\": 503671,\n      \"sha256\": \"82a33a2227fe63eed1d8ca5908f51f48c4ac4aa1d4527a7633980673fd9a6a30\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"dto_root_generation_authority\",\n      \"path\": \"tools/xtask/src/dto_roots.rs\",\n      \"byte_length\": 35940,\n      \"sha256\": \"a899a5695d7533c151d03477c4bd697a6e55c47a4980549724ac42046af694f5\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    {\n      \"role\": \"xtask_dispatch_and_release_preflight\",\n      \"path\": \"tools/xtask/src/main.rs\",\n      \"byte_length\": 16426,\n      \"sha256\": \"abc24896c6c740c10811a3e003ec4be8ebdb376a7b6b01445bfa7a5889f094a7\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    }\n  ],\n  \"public_api\": {\n    \"inherited_predecessor_symbols\": [\n      \"RADROOTS_ADDRESSABLE_TRANSITION_CURSOR_JSON_MAX_BYTES_V1\",\n      \"RADROOTS_ADDRESSABLE_TRANSITION_D_TAG_MAX_BYTES_V1\",\n      \"RADROOTS_ADDRESSABLE_TRANSITION_FEED_VERSION_V1\",\n      \"RADROOTS_ADDRESSABLE_TRANSITION_PAGE_LIMIT_MAX_V1\",\n      \"RADROOTS_ADDRESSABLE_TRANSITION_PAGE_RAW_JSON_MAX_BYTES_V1\",\n      \"RADROOTS_ADDRESSABLE_TRANSITION_PAGE_SCAN_MAX_V1\",\n      \"RADROOTS_ADDRESSABLE_TRANSITION_SCOPE_KIND_MAX_V1\",\n      \"RADROOTS_FOOD_AVAILABILITY_PROJECTION_APPLY_PAGE_LIMIT_V1\",\n      \"RADROOTS_FOOD_AVAILABILITY_PROJECTION_VERSION_V1\",\n      \"RADROOTS_FOOD_AVAILABILITY_SEARCH_QUERY_MAX_BYTES_V1\",\n      \"RADROOTS_FOOD_AVAILABILITY_SEARCH_QUERY_MAX_TERMS_V1\",\n      \"RadrootsAddressableTransitionCauseV1\",\n      \"RadrootsAddressableTransitionCoordinateV1\",\n      \"RadrootsAddressableTransitionCursorV1\",\n      \"RadrootsAddressableTransitionEventReferenceV1\",\n      \"RadrootsAddressableTransitionOriginV1\",\n      \"RadrootsAddressableTransitionPageV1\",\n      \"RadrootsAddressableTransitionRawHeadDecisionV1\",\n      \"RadrootsAddressableTransitionScopeFingerprintV1\",\n      \"RadrootsAddressableTransitionScopeV1\",\n      \"RadrootsAddressableTransitionV1\",\n      \"RadrootsAddressableTransitionVisibilityV1\",\n      \"RadrootsCurrentEventVisibilityV1\",\n      \"RadrootsCurrentVisibilityDecisionV1\",\n      \"RadrootsFoodAvailabilitySearchQueryV1\",\n      \"RadrootsFoodAvailabilityStatusFilterV1\",\n      \"RadrootsNip09SuppressionEvidenceV1\",\n      \"RadrootsNip09SuppressionOutcome\",\n      \"RadrootsNip09SuppressionReason\",\n      \"RadrootsStoreProducedCanonicalEventV1\",\n      \"RadrootsStoredFoodAvailabilityImageV1\",\n      \"RadrootsStoredFoodAvailabilityV1\"\n    ],\n    \"added_symbols\": [\n      \"RADROOTS_EVENT_STORE_RAW_EVENT_COUNT_LIMIT_V1\",\n      \"RADROOTS_EVENT_STORE_RAW_EVENT_TEXT_BYTES_LIMIT_V1\",\n      \"RADROOTS_EVENT_STORE_RAW_TAG_COUNT_LIMIT_V1\",\n      \"RADROOTS_EVENT_STORE_RAW_TAG_TEXT_BYTES_LIMIT_V1\",\n      \"RADROOTS_EVENT_STORE_RETAINED_SOURCE_GENERATION_LIMIT_V1\",\n      \"RadrootsEventStoreSourceCapacityResourceV1\",\n      \"RadrootsEventStoreSourceCapacityV1\"\n    ],\n    \"methods\": [\n      \"RadrootsEventStore::source_capacity_v1\",\n      \"RadrootsEventStoreSourceCapacityResourceV1::as_str\",\n      \"RadrootsEventStoreSourceCapacityV1::source_generation\",\n      \"RadrootsEventStoreSourceCapacityV1::raw_event_count\",\n      \"RadrootsEventStoreSourceCapacityV1::raw_tag_count\",\n      \"RadrootsEventStoreSourceCapacityV1::raw_event_text_bytes\",\n      \"RadrootsEventStoreSourceCapacityV1::raw_tag_text_bytes\",\n      \"RadrootsEventStoreSourceCapacityV1::raw_high_water_seq\",\n      \"RadrootsEventStoreSourceCapacityV1::retained_generation_count\",\n      \"RadrootsEventStoreSourceCapacityV1::retained_generation_limit\"\n    ],\n    \"error_variants\": [\n      \"SourceCapacityExceeded\",\n      \"SourceGenerationHistoryLimitReached\",\n      \"PersistedEphemeralRawEvent\",\n      \"SourceCapacityStateDrift\",\n      \"SqliteMainDatabaseEncodingNotUtf8\",\n      \"RollbackWouldDiscardSourceGenerationHistory\"\n    ],\n    \"removed_symbols\": [\n      \"RadrootsEventStoreReconciliationResource\",\n      \"RadrootsEventStoreError::ReconciliationCapacityExceeded\"\n    ],\n    \"breaking_replacements\": [\n      {\n        \"removed\": \"RadrootsEventStoreReconciliationResource\",\n        \"replacement\": \"RadrootsEventStoreSourceCapacityResourceV1\"\n      },\n      {\n        \"removed\": \"RadrootsEventStoreError::ReconciliationCapacityExceeded\",\n        \"replacement\": \"RadrootsEventStoreError::SourceCapacityExceeded\"\n      }\n    ]\n  },\n  \"result_vector\": {\n    \"canonical_path\": \"contracts/conformance/vectors/event_store/source_maintenance.v1.json\",\n    \"mirror_path\": \"crates/event_store/tests/fixtures/source_maintenance.v1.json\",\n    \"byte_length\": 16253,\n    \"sha256\": \"997aba2604a2b9d199fb87dc9d07942ca50d91863aeadcf3eeacf16d191dd71f\",\n    \"hash_algorithm\": \"sha256_bytes_v1\",\n    \"executor_id\": \"radroots_event_store.source_maintenance_v1.result_vector_executor.v1\",\n    \"executor_path\": \"crates/event_store/tests/source_maintenance_v1_result_vector.rs\",\n    \"executor_test\": \"source_maintenance_v1_result_vector\",\n    \"executor_byte_length\": 23510,\n    \"executor_sha256\": \"a7487afdfe19fc5fc794811d0f0e6035203e1aabcf0a33a1d398f6b3555d38f3\",\n    \"executor_hash_algorithm\": \"sha256_bytes_v1\"\n  }\n}\n";
+pub(crate) const SOURCE_MAINTENANCE_MANIFEST_JSON: &str = "{\n  \"schema_version\": 1,\n  \"contract_id\": \"radroots_event_store.source_maintenance_v1\",\n  \"hook_id\": \"source_maintenance_v1\",\n  \"manifest_schema\": {\n    \"path\": \"crates/event_store/contracts/source_maintenance_v1.manifest.schema.json\",\n    \"byte_length\": 12315,\n    \"sha256\": \"96ea98a5abf3348b61565954cd34f2c622411d8dd34205ef04134bbe0e3d3f2b\",\n    \"hash_algorithm\": \"sha256_bytes_v1\"\n  },\n  \"predecessor\": {\n    \"hook_id\": \"food_availability_projection_v1\",\n    \"manifest\": {\n      \"path\": \"crates/event_store/contracts/food_availability_projection_v1.manifest.json\",\n      \"byte_length\": 17455,\n      \"sha256\": \"02dfe1b450fbdac16e718888215b4dd5c85d8975440fa21e8f439fb24c2b2990\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    }\n  },\n  \"migration\": {\n    \"version\": 4,\n    \"name\": \"source_maintenance\",\n    \"up\": {\n      \"path\": \"crates/event_store/migrations/0004_source_maintenance.up.sql\",\n      \"byte_length\": 19841,\n      \"sha256\": \"ab2724188f8d08c897eebea2533a635e7c74282a25e84e4c0c37e78b08837a43\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    \"down\": {\n      \"path\": \"crates/event_store/migrations/0004_source_maintenance.down.sql\",\n      \"byte_length\": 5172,\n      \"sha256\": \"fe44fd53c51545c08ea479b385e6781079dab70fc63da2a3c205d727a00ce860\",\n      \"hash_algorithm\": \"sha256_bytes_v1\"\n    },\n    \"schema_sha256\": \"074f85b663444ac150239ecd8441ea4a96ad83a798a55e22d2e5e2f7ee943a8c\",\n    \"catalog\": {\n      \"objects\": [\n        \"radroots_event_store_source_capacity_delete_guard\",\n        \"radroots_event_store_source_capacity_insert_guard\",\n        \"radroots_event_store_source_capacity_marker_close_guard\",\n        \"radroots_event_store_source_capacity_update_guard\",\n        \"radroots_event_store_source_capacity_v1\",\n        \"radroots_event_store_source_generation_capacity_advance\",\n        \"radroots_event_store_source_generation_capacity_guard\"\n      ],\n      \"replaced_objects\": [\n        \"radroots_event_store_food_availability_image_delete_guard\",\n        \"radroots_event_store_food_availability_projection_delete_guard\",\n        \"radroots_event_store_source_rebuild_marker_insert_guard\"\n      ],\n      \"tables\": [\n        \"radroots_event_store_source_capacity_v1\"\n      ],\n      \"fts5_tables\": []\n    }\n  },\n  \"source_maintenance\": {\n    \"version\": 1,\n    \"event_contract_registry_version\": 7,\n    \"capacity_authority_id\": \"radroots_event_store_source_capacity_v1\",\n    \"accounting\": {\n      \"algorithm\": \"sqlite_cast_blob_octet_sum_v1\",\n      \"raw_event_columns\": [\n        \"event_id\",\n        \"pubkey\",\n        \"tags_json\",\n        \"content\",\n        \"sig\",\n        \"raw_json\"\n      ],\n      \"raw_tag_columns\": [\n        \"event_id\",\n        \"tag_name\",\n        \"tag_value\",\n        \"tag_json\"\n      ],\n      \"nullable_raw_tag_columns\": [\n        \"tag_value\"\n      ]\n    },\n    \"limits\": {\n      \"raw_events\": 25000,\n      \"raw_tags\": 250000,\n      \"raw_event_text_bytes\": 67108864,\n      \"raw_tag_text_bytes\": 33554432,\n      \"retained_source_generations\": 8\n    },\n    \"reopen_validation\": {\n      \"mode\": \"bounded_full_raw_recount_v1\",\n      \"raw_event_rejection_scan_bound\": 25001,\n      \"raw_tag_rejection_scan_bound\": 250001,\n      \"generation_history_validation\": \"bounded_count_plus_active_ordinal_v1\",\n      \"retained_generation_rejection_scan_bound\": 9\n    },\n    \"rebuild_seal\": {\n      \"nip09_hook_id\": \"nip09_reconciliation_v1\",\n      \"nip09_manifest_sha256\": \"74af832420ffbaa9805e89df3c0b34f126a443e1598f757e3372f407f9003b77\",\n      \"food_hook_id\": \"food_availability_projection_v1\",\n      \"food_manifest_sha256\": \"02dfe1b450fbdac16e718888215b4dd5c85d8975440fa21e8f439fb24c2b2990\",\n      \"food_scope_fingerprint_sha256\": \"8b63c5ddc48a2cc7db69295238b96d5f814dba50427c80b4d0079f061e6d3de0\",\n      \"active_generation_authority\": \"radroots_event_store_source_state\",\n      \"marker_close_authority\": \"radroots_event_store_source_capacity_marker_close_guard\"\n    }\n  },\n  \"entry_points\": [\n    {\n      \"role\": \"migration_registry\",\n      \"rust_path\": \"radroots_event_store::migrations::EVENT_STORE_MIGRATIONS[3]\"\n    },\n    {\n      \"role\": \"migration_apply_hook\",\n      \"rust_path\": \"radroots_event_store::schema::apply_migration_hook\"\n    },\n    {\n      \"role\": \"migration_validation_hook\",\n      \"rust_path\": \"radroots_event_store::schema::validate_migration_hook_state\"\n    },\n    {\n      \"role\": \"capacity_query\",\n      \"rust_path\": \"radroots_event_store::RadrootsEventStore::source_capacity_v1\"\n    },\n    {\n      \"role\": 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     \"SourceCapacityExceeded\",\n      \"SourceGenerationHistoryLimitReached\",\n      \"PersistedEphemeralRawEvent\",\n      \"SourceCapacityStateDrift\",\n      \"SqliteMainDatabaseEncodingNotUtf8\",\n      \"RollbackWouldDiscardSourceGenerationHistory\"\n    ],\n    \"removed_symbols\": [\n      \"RadrootsEventStoreReconciliationResource\",\n      \"RadrootsEventStoreError::ReconciliationCapacityExceeded\"\n    ],\n    \"breaking_replacements\": [\n      {\n        \"removed\": \"RadrootsEventStoreReconciliationResource\",\n        \"replacement\": \"RadrootsEventStoreSourceCapacityResourceV1\"\n      },\n      {\n        \"removed\": \"RadrootsEventStoreError::ReconciliationCapacityExceeded\",\n        \"replacement\": \"RadrootsEventStoreError::SourceCapacityExceeded\"\n      }\n    ]\n  },\n  \"result_vector\": {\n    \"canonical_path\": \"contracts/conformance/vectors/event_store/source_maintenance.v1.json\",\n    \"mirror_path\": \"crates/event_store/tests/fixtures/source_maintenance.v1.json\",\n    \"byte_length\": 16253,\n    \"sha256\": \"997aba2604a2b9d199fb87dc9d07942ca50d91863aeadcf3eeacf16d191dd71f\",\n    \"hash_algorithm\": \"sha256_bytes_v1\",\n    \"executor_id\": \"radroots_event_store.source_maintenance_v1.result_vector_executor.v1\",\n    \"executor_path\": \"crates/event_store/tests/source_maintenance_v1_result_vector.rs\",\n    \"executor_test\": \"source_maintenance_v1_result_vector\",\n    \"executor_byte_length\": 23510,\n    \"executor_sha256\": \"a7487afdfe19fc5fc794811d0f0e6035203e1aabcf0a33a1d398f6b3555d38f3\",\n    \"executor_hash_algorithm\": \"sha256_bytes_v1\"\n  }\n}\n";
 pub(crate) const SOURCE_MAINTENANCE_MANIFEST_BYTE_LENGTH: usize = 38397;
 pub(crate) const SOURCE_MAINTENANCE_MANIFEST_SHA256: &str =
-    "7f98748038dc5fd409f681a63fdd4a6617aca9e0990a7e2606d79a04a66388b2";
+    "667a3d5176a3f16d1abed0709a21c29f4c2bd8f06524b4e16e65bffd09ee1c8f";
 pub(crate) const SOURCE_MAINTENANCE_MANIFEST_SCHEMA_VERSION: u32 = 1;
 pub(crate) const SOURCE_MAINTENANCE_CONTRACT_ID: &str =
     "radroots_event_store.source_maintenance_v1";
diff --git a/tools/xtask/src/contract.rs b/tools/xtask/src/contract.rs
@@ -24,6 +24,10 @@ pub(crate) use source_maintenance::{
 
 use crate::coverage::{CoveragePolicyFile, CoverageThresholds, read_coverage_policy};
 use admission_authority::validate_admission_operation_authority;
+use artifact_bundle::{
+    GeneratedArtifact, read_regular_file, validate_canonical_json_artifact,
+    validate_sha256_artifact, with_artifact_bundle_transaction,
+};
 use comment_authority::{
     COMMENT_CASE_KINDS, COMMENT_CONFORMANCE_VECTOR_RELATIVE, COMMENT_OPERATION_EXPECTATIONS,
     COMMENT_VECTOR_EXPECTATIONS, REQUIRED_COMMENT_PUBLIC_TYPES,
@@ -67,6 +71,7 @@ const KNOWLEDGE_MANIFEST_RELATIVE: &str =
     "contracts/knowledge/knowledge_event_contract_manifest.v2.json";
 const KNOWLEDGE_MANIFEST_SHA256_RELATIVE: &str =
     "contracts/knowledge/knowledge_event_contract_manifest.v2.sha256";
+const KNOWLEDGE_MANIFEST_WRITE_COMMAND: &str = "cargo xtask contract knowledge-manifest --write";
 const KNOWLEDGE_MANIFEST_AND_DECODE_RELATIVE: &str =
     "contracts/conformance/vectors/knowledge/manifest_and_decode.v1.json";
 const KNOWLEDGE_PUBLIC_SURFACE_RELATIVE: &str =
@@ -4508,49 +4513,127 @@ fn validate_comment_vector_namespace(
 }
 
 pub fn write_knowledge_contract_manifest(workspace_root: &Path) -> Result<(), String> {
-    let manifest_json = radroots_event_codec::contract_manifest_json()
-        .map_err(|error| format!("serialize knowledge contract manifest: {error}"))?;
-    let manifest_sha256 = radroots_event_codec::contract_manifest_sha256()
-        .map_err(|error| format!("hash knowledge contract manifest: {error}"))?;
-    let manifest_path = workspace_root.join(KNOWLEDGE_MANIFEST_RELATIVE);
-    let hash_path = workspace_root.join(KNOWLEDGE_MANIFEST_SHA256_RELATIVE);
-    if let Some(parent) = manifest_path.parent() {
-        fs::create_dir_all(parent)
-            .map_err(|error| format!("create {}: {error}", parent.display()))?;
-    }
-    fs::write(&manifest_path, manifest_json)
-        .map_err(|error| format!("write {}: {error}", manifest_path.display()))?;
-    fs::write(&hash_path, format!("{manifest_sha256}\n"))
-        .map_err(|error| format!("write {}: {error}", hash_path.display()))?;
-    validate_knowledge_contract_manifest(workspace_root)
+    let manifest_json = write_knowledge_contract_manifest_artifacts(workspace_root)?;
+    validate_knowledge_contract_manifest_context(workspace_root, &manifest_json)
 }
 
 pub fn validate_knowledge_contract_manifest(workspace_root: &Path) -> Result<(), String> {
+    let manifest_json = validate_knowledge_contract_manifest_artifacts(workspace_root)?;
+    validate_knowledge_contract_manifest_context(workspace_root, &manifest_json)
+}
+
+fn write_knowledge_contract_manifest_artifacts(workspace_root: &Path) -> Result<String, String> {
+    with_artifact_bundle_transaction(workspace_root, |transaction| {
+        let manifest_json = expected_knowledge_contract_manifest_json()?;
+        let manifest_sha256 = expected_knowledge_contract_manifest_sha256()?;
+        transaction.write(vec![
+            GeneratedArtifact {
+                relative: KNOWLEDGE_MANIFEST_RELATIVE,
+                contents: manifest_json.into_bytes(),
+            },
+            GeneratedArtifact {
+                relative: KNOWLEDGE_MANIFEST_SHA256_RELATIVE,
+                contents: format!("{manifest_sha256}\n").into_bytes(),
+            },
+        ])?;
+        validate_knowledge_contract_manifest_artifacts_under_lock(workspace_root)
+    })
+}
+
+fn validate_knowledge_contract_manifest_artifacts(workspace_root: &Path) -> Result<String, String> {
+    with_artifact_bundle_transaction(workspace_root, |_| {
+        validate_knowledge_contract_manifest_artifacts_under_lock(workspace_root)
+    })
+}
+
+fn validate_knowledge_contract_manifest_artifacts_under_lock(
+    workspace_root: &Path,
+) -> Result<String, String> {
+    let expected_json = expected_knowledge_contract_manifest_json()?;
+    let expected_sha256 = expected_knowledge_contract_manifest_sha256()?;
+    let actual_json = read_regular_file(workspace_root, KNOWLEDGE_MANIFEST_RELATIVE)?;
+    let actual_sha256 = read_regular_file(workspace_root, KNOWLEDGE_MANIFEST_SHA256_RELATIVE)?;
+    let actual_json_text = std::str::from_utf8(&actual_json)
+        .map_err(|error| format!("{KNOWLEDGE_MANIFEST_RELATIVE} must be UTF-8 JSON: {error}"))?;
+    let parsed =
+        radroots_event_codec::manifest::parse_knowledge_contract_manifest_json(actual_json_text)
+            .map_err(|error| format!("parse {KNOWLEDGE_MANIFEST_RELATIVE}: {error}"))?;
+
+    validate_knowledge_contract_manifest_shape(&parsed)?;
+    validate_canonical_json_artifact(KNOWLEDGE_MANIFEST_RELATIVE, &actual_json)?;
+    validate_sha256_artifact(KNOWLEDGE_MANIFEST_SHA256_RELATIVE, &actual_sha256)?;
+
+    if actual_json != expected_json.as_bytes() {
+        return Err(stale_knowledge_manifest_error(KNOWLEDGE_MANIFEST_RELATIVE));
+    }
+    if actual_sha256 != format!("{expected_sha256}\n").as_bytes() {
+        return Err(stale_knowledge_manifest_error(
+            KNOWLEDGE_MANIFEST_SHA256_RELATIVE,
+        ));
+    }
+    if parsed != radroots_event_codec::knowledge_contract_manifest() {
+        return Err(stale_knowledge_manifest_error(KNOWLEDGE_MANIFEST_RELATIVE));
+    }
+
+    Ok(actual_json_text.to_owned())
+}
+
+fn expected_knowledge_contract_manifest_json() -> Result<String, String> {
     let expected_json = radroots_event_codec::contract_manifest_json()
         .map_err(|error| format!("serialize knowledge contract manifest: {error}"))?;
-    let expected_sha256 = radroots_event_codec::contract_manifest_sha256()
-        .map_err(|error| format!("hash knowledge contract manifest: {error}"))?;
-    let manifest_path = workspace_root.join(KNOWLEDGE_MANIFEST_RELATIVE);
-    let hash_path = workspace_root.join(KNOWLEDGE_MANIFEST_SHA256_RELATIVE);
-    let actual_json = fs::read_to_string(&manifest_path)
-        .map_err(|error| format!("read {}: {error}", manifest_path.display()))?;
-    let actual_hash = fs::read_to_string(&hash_path)
-        .map_err(|error| format!("read {}: {error}", hash_path.display()))?;
-
-    if actual_json != expected_json {
+    Ok(expected_json)
+}
+
+fn expected_knowledge_contract_manifest_sha256() -> Result<String, String> {
+    radroots_event_codec::contract_manifest_sha256()
+        .map_err(|error| format!("hash knowledge contract manifest: {error}"))
+}
+
+fn validate_knowledge_contract_manifest_shape(
+    manifest: &radroots_event_codec::manifest::RadrootsKnowledgeContractManifest,
+) -> Result<(), String> {
+    if manifest.schema_version
+        != radroots_event_codec::RADROOTS_KNOWLEDGE_CONTRACT_MANIFEST_SCHEMA_VERSION
+    {
         return Err(format!(
-            "knowledge manifest {} is stale; run cargo xtask contract knowledge-manifest --write",
-            KNOWLEDGE_MANIFEST_RELATIVE
+            "{KNOWLEDGE_MANIFEST_RELATIVE} schema_version must be {}",
+            radroots_event_codec::RADROOTS_KNOWLEDGE_CONTRACT_MANIFEST_SCHEMA_VERSION
         ));
     }
-    if actual_hash != format!("{expected_sha256}\n") {
+    if manifest.registry_version
+        != radroots_event_codec::RADROOTS_EVENT_CONTRACT_REGISTRY_V7_VERSION
+    {
+        return Err(format!(
+            "{KNOWLEDGE_MANIFEST_RELATIVE} registry_version must be {}",
+            radroots_event_codec::RADROOTS_EVENT_CONTRACT_REGISTRY_V7_VERSION
+        ));
+    }
+    if manifest.contract_count != manifest.contracts.len() {
+        return Err(format!(
+            "{KNOWLEDGE_MANIFEST_RELATIVE} contract_count must match its contract inventory"
+        ));
+    }
+    if manifest
+        .contracts
+        .windows(2)
+        .any(|pair| pair[0].contract_id >= pair[1].contract_id)
+    {
         return Err(format!(
-            "knowledge manifest hash {} is stale; run cargo xtask contract knowledge-manifest --write",
-            KNOWLEDGE_MANIFEST_SHA256_RELATIVE
+            "{KNOWLEDGE_MANIFEST_RELATIVE} contract IDs must be unique and strictly sorted"
         ));
     }
+    Ok(())
+}
+
+fn stale_knowledge_manifest_error(relative: &str) -> String {
+    format!("{relative} is stale; run `{KNOWLEDGE_MANIFEST_WRITE_COMMAND}`")
+}
 
-    validate_knowledge_manifest_witnesses(workspace_root, &actual_json)?;
+fn validate_knowledge_contract_manifest_context(
+    workspace_root: &Path,
+    manifest_json: &str,
+) -> Result<(), String> {
+    validate_knowledge_manifest_witnesses(workspace_root, manifest_json)?;
     validate_knowledge_conformance_vector_inventory(workspace_root)?;
 
     let bundle = load_contract_bundle(workspace_root)?;
@@ -4558,7 +4641,7 @@ pub fn validate_knowledge_contract_manifest(workspace_root: &Path) -> Result<(),
         &workspace_root.join(KNOWLEDGE_MANIFEST_AND_DECODE_RELATIVE),
         &bundle.manifest.contract.version,
     )?;
-    validate_knowledge_manifest_vector_semantics(&actual_json, &knowledge_manifest_vector)?;
+    validate_knowledge_manifest_vector_semantics(manifest_json, &knowledge_manifest_vector)?;
     validate_conformance_vector_file(
         &workspace_root.join(KNOWLEDGE_PUBLIC_SURFACE_RELATIVE),
         &bundle.manifest.contract.version,
@@ -9958,6 +10041,44 @@ crates = ["radroots_a", "radroots_b", "radroots_c", "radroots_d", "radroots_e"]
     }
 
     #[test]
+    fn knowledge_manifest_artifacts_are_atomic_fresh_and_shape_checked() {
+        let root = temp_root("knowledge_manifest_artifacts");
+        let generated =
+            write_knowledge_contract_manifest_artifacts(&root).expect("write manifest artifacts");
+        assert_eq!(
+            generated,
+            expected_knowledge_contract_manifest_json().expect("expected manifest")
+        );
+        assert_eq!(
+            validate_knowledge_contract_manifest_artifacts(&root)
+                .expect("fresh manifest artifacts"),
+            generated
+        );
+
+        let manifest_path = root.join(KNOWLEDGE_MANIFEST_RELATIVE);
+        let mut extra_lf = fs::read_to_string(&manifest_path).expect("read manifest");
+        extra_lf.push('\n');
+        fs::write(&manifest_path, extra_lf).expect("write noncanonical manifest");
+        let error = validate_knowledge_contract_manifest_artifacts(&root)
+            .expect_err("noncanonical manifest must fail");
+        assert!(error.contains("exactly one LF"), "{error}");
+
+        write_knowledge_contract_manifest_artifacts(&root).expect("restore manifest artifacts");
+        let mut value: Value =
+            serde_json::from_slice(&fs::read(&manifest_path).expect("read restored manifest"))
+                .expect("parse restored manifest");
+        value["contract_count"] = Value::from(0_u64);
+        let mut mismatched = serde_json::to_string_pretty(&value).expect("serialize mismatch");
+        mismatched.push('\n');
+        fs::write(&manifest_path, mismatched).expect("write count mismatch");
+        let error = validate_knowledge_contract_manifest_artifacts(&root)
+            .expect_err("count mismatch must fail");
+        assert!(error.contains("contract_count"), "{error}");
+
+        let _ = fs::remove_dir_all(root);
+    }
+
+    #[test]
     fn strict_post_release_record_governs_public_boundary_breaks() {
         let root = workspace_root();
         let bundle = load_contract_bundle(&root).expect("load current contract bundle");
diff --git a/tools/xtask/src/contract/artifact_bundle.rs b/tools/xtask/src/contract/artifact_bundle.rs
@@ -72,6 +72,33 @@ pub(super) fn read_regular_file(workspace_root: &Path, relative: &str) -> Result
     fs::read(path).map_err(|error| format!("read {relative}: {error}"))
 }
 
+pub(super) fn validate_canonical_json_artifact(relative: &str, bytes: &[u8]) -> Result<(), String> {
+    if bytes.contains(&b'\r') {
+        return Err(format!("{relative} must use LF line endings"));
+    }
+    if !bytes.ends_with(b"\n") || bytes.ends_with(b"\n\n") {
+        return Err(format!("{relative} must end with exactly one LF"));
+    }
+    Ok(())
+}
+
+pub(super) fn validate_sha256_artifact(relative: &str, bytes: &[u8]) -> Result<(), String> {
+    if bytes.len() != 65 || bytes[64] != b'\n' {
+        return Err(format!(
+            "{relative} must contain 64 lowercase hexadecimal bytes and one LF"
+        ));
+    }
+    if !bytes[..64]
+        .iter()
+        .all(|byte| byte.is_ascii_digit() || (b'a'..=b'f').contains(byte))
+    {
+        return Err(format!(
+            "{relative} must contain a lowercase SHA-256 digest"
+        ));
+    }
+    Ok(())
+}
+
 pub(super) fn with_artifact_bundle_transaction<T>(
     workspace_root: &Path,
     operation: impl FnOnce(&ArtifactBundleTransaction<'_>) -> Result<T, String>,
diff --git a/tools/xtask/src/contract/registry_v7.rs b/tools/xtask/src/contract/registry_v7.rs
@@ -1,5 +1,6 @@
 use super::artifact_bundle::{
-    GeneratedArtifact, read_regular_file, with_artifact_bundle_transaction,
+    GeneratedArtifact, read_regular_file, validate_canonical_json_artifact,
+    validate_sha256_artifact, with_artifact_bundle_transaction,
 };
 use radroots_event_codec::{
     RADROOTS_EVENT_CONTRACT_REGISTRY_V7_EVENT_COUNT,
@@ -61,8 +62,8 @@ pub(super) fn validate_event_contract_registry_v7_inventory_under_lock(
         .map_err(|error| format!("parse {INVENTORY_RELATIVE}: {error}"))?;
 
     validate_inventory_shape(&parsed)?;
-    validate_canonical_json_bytes(&actual_json)?;
-    validate_digest_bytes(&actual_sha256)?;
+    validate_canonical_json_artifact(INVENTORY_RELATIVE, &actual_json)?;
+    validate_sha256_artifact(INVENTORY_SHA256_RELATIVE, &actual_sha256)?;
 
     if actual_json != expected_json.as_bytes() {
         return Err(stale_error(INVENTORY_RELATIVE));
@@ -137,33 +138,6 @@ fn validate_inventory_shape(
     Ok(())
 }
 
-fn validate_canonical_json_bytes(bytes: &[u8]) -> Result<(), String> {
-    if bytes.contains(&b'\r') {
-        return Err(format!("{INVENTORY_RELATIVE} must use LF line endings"));
-    }
-    if !bytes.ends_with(b"\n") || bytes.ends_with(b"\n\n") {
-        return Err(format!("{INVENTORY_RELATIVE} must end with exactly one LF"));
-    }
-    Ok(())
-}
-
-fn validate_digest_bytes(bytes: &[u8]) -> Result<(), String> {
-    if bytes.len() != 65 || bytes[64] != b'\n' {
-        return Err(format!(
-            "{INVENTORY_SHA256_RELATIVE} must contain 64 lowercase hexadecimal bytes and one LF"
-        ));
-    }
-    if !bytes[..64]
-        .iter()
-        .all(|byte| byte.is_ascii_digit() || (b'a'..=b'f').contains(byte))
-    {
-        return Err(format!(
-            "{INVENTORY_SHA256_RELATIVE} must contain a lowercase SHA-256 digest"
-        ));
-    }
-    Ok(())
-}
-
 fn stale_error(relative: &str) -> String {
     format!("{relative} is stale; run `{WRITE_COMMAND}`")
 }