browser/openspec/changes/replace-scum-projections-with-real-data-management/evidence/scum-current-service-sqlite-diagnostic-2026-08-12.md

SCUM Current-Service SQLite Diagnostic Evidence — 2026-08-12

Scope

• Evidence kind: operator-directed, server-local, read-only diagnostic discovery.
• Execution target: 枣庄服务器 through the personal server-management MCP (list_devices, test_connection, ssh_exec).
• Product boundary: Platform/plugin did not download or parse SCUM.db. The diagnostic script executed on the game server host and emitted only schema metadata, aggregates, hashes, and redacted samples.
• Release boundary: this evidence supports adapter discovery. It does not replace the Platform durable Run job / typed Run envelope required before enabling database-backed production capabilities.

Database Identity and Read Behavior

• One active SCUM.db candidate was found beside the running SCUM service metadata; no host path is recorded in this artifact.
• Read mode: Python sqlite3 URI mode=ro, PRAGMA query_only=ON, 2s timeout.
• Database size: 80,805,888 bytes.
• SQLite metadata: schema_version=765, user_version=57, journal_mode=wal, page_size=4096, page_count=19728, freelist_count=1.
• Object inventory: 293 schema objects, 161 tables.
• Safe-read timing observed: full schema inventory 61ms; focused groups 3ms, 13ms, 3ms; join/range metrics 25ms. No read lock/busy failure was observed during these diagnostics.
• Fingerprints: full schema objects 57e34ee72660d7e4334644ee70cd6d285ac7961a3964fafdc3956d74e88dfa4f; focused table groups 12a34e49f851879ae71ba287719c8d95019909f3060e823be4ce0973ce764841, a856bc4e105ab0a5e34b758237d3f96cff0ba5a65b38e7cf1eb81ab16b40caf4, 60c97a8c782086c4b2600eb3a9b29c3074b971d5fdc6cf54137ce48e0970b26e; join/range metrics 4905d09b70303b42cfb8e7fc936fe0df2065d7100c43e92ef79a464958249af4.

Evidence Matrix

Area	Current-service evidence	Remaining ambiguity
External player identity	user has 74 rows with id TEXT primary key, id_type, provider, last_login_time, creation_time, is_banned, and network-address field present but not persisted in this artifact. Redacted samples show id_type=Steam and provider Server.	Product APIs must hash or fence external IDs where appropriate and must never expose IP/network material.
Player profile join	user_profile has 73 rows; user_profile.user_id -> user.id; user_profile.prisoner_id -> prisoner.id; indexes on (user_id,type,name), type, and prisoner_id.	Profile type meanings still need explicit adapter mapping.
Character/prisoner join	prisoner has 72 rows and prisoner.user_profile_id -> user_profile.id; prisoner_entity has 72 rows mapping prisoner_id -> prisoner.id and entity_id -> entity.id. Join metrics: 73 profiles, 73 with user, 72 with prisoner, 72 with prisoner entity, 72 with entity.	One profile has no current prisoner/entity. Online state must still come from authenticated login/session evidence, not database timestamps alone.
Character XML / payload	user_profile.template_xml is present and non-null for 73/73 profiles, length range 2541–2673; samples were hash+length only. prisoner_skill.xml has 72/1656 non-null rows, length 15–65; item_entity.xml has 42298/62838 non-null rows, length 136–4781.	user_profile.template_xml is a strong candidate, but write semantics, named attributes, and 855 mapping remain unverified.
Player coordinates	entity has 63364 rows with location_x/y/z, rotation_x/y/z, scale, flags, class, and optional BLOB data. Joined prisoner entity range: x -872217.6875..567603.0625, y -843655.8125..554482.125, z 221.87356567382812..82958.546875; prisoner.last_save_time range 1773202437..1786533149.	Save/update cadence and whether this can satisfy realtime map cadence still need measurement.
Squad	squad has 7 rows; squad_member has 18 rows with squad_id, user_profile_id, rank; all members join to both squad and profile. Rank distribution: 1:6, 2:2, 3:4, 4:6.	Rank meanings / leader semantics are not proven. Keep labels neutral until verified.
Vehicles	vehicle_spawner and vehicle_entity each have 313 rows; all vehicle spawner rows join to vehicle_entity and entity; 15 distinct vehicle assets observed. Vehicle entity coordinate range: x -898438..601692.3125, y -881533.25..605226.5, z -84.04053497314453..98312.640625.	Vehicle ownership/status meanings beyond the observed fields remain capability-gated.
Flags / bases	base has 5 rows; base_element has 1533; base_element_flag has 5; all flags join to base elements and bases; all flags have an owner profile through the base element; no overtaker profile observed.	Confirm whether base_element.owner_profile_id is the authoritative flag owner before exposing owner labels.
Economy / balances	economy and bank_general_data each have 1 global row. bank_account_registry has 73 accounts; bank_account_registry_currencies has 146 rows; all currency rows join to an owner profile. Currency distribution: type 1 has 73 rows, balance range -3000..830328; type 2 has 73 rows, balance range 0..14636.	Currency type meanings, units, safe command/readback semantics, and gift item aliases remain unverified.
Spawn/location table	prisoner_spawn_location has 78 rows with location_x/y/z, rotation, velocity, type, optional shelter_id; coordinate range roughly matches player entity bounds.	This is spawn-location evidence, not current position evidence.

Redaction Notes

• Player names, squad names/messages, map names, aliases, XML, BLOB payloads, tokens, and network-address material were represented only as hash+type+length when sampled.
• Three player join samples were retained only as hash of external player id plus numeric profile/prisoner/entity IDs, timestamps, fame points, and coordinates.
• No raw SQL, host database path, credentials, direct sockets, raw XML, raw player names, or raw IP/network identifiers are recorded here.

Resulting Gates

• Task 2.5 schema capture is satisfied for discovery: sqlite_schema, read-only PRAGMA metadata, indexes, foreign keys, declared types, cardinalities, and redacted samples were captured for the candidate sources.
• Tasks 2.6–2.8 remain open: join semantics, rank meanings, currency meanings/commands, update cadence, map transform, gift aliases, and 855 named-attribute mapping still require explicit verification.
• Database-backed SCUM read/write capabilities remain disabled until the corresponding versioned adapters and Run durable execution envelopes are implemented and accepted.