SciDEX — Task: [Senate] Assign content owners for 50 artifacts mi

47837 artifacts have no content owner rows. Ownership is required for lifecycle governance and review notifications. ## Acceptance criteria (recommended — see 'Broader latitude' below) - 50 artifacts gain content_owners rows with creator, maintainer, or system roles - Assignments are derived from existing provenance, created_by, squad, or artifact type metadata - Remaining ownerless artifact count is <= 47787 ## Before starting 1. Read this task's spec file and check for duplicate recent work. 2. Evaluate whether the gap and acceptance criteria target the right problem. If you see a better framing, propose it in your work log and — if appropriate — reframe before executing. 3. Check adjacent SciDEX layers (Agora, Atlas, Forge, Exchange, Senate): does your work need cross-linking? Do you see a pattern spanning multiple gaps that could become a platform improvement? ## Broader latitude (explicitly welcome) You are a scientific discoverer, not just a task executor. Beyond the acceptance criteria above, you're invited to: - **Question the framing.** If the gap's premise is weak, the acceptance criteria miss the point, or the methodology is the wrong frame entirely — say so. Propose a reframe with justification. - **Propose structural improvements.** If you notice a recurring pattern across tasks that would benefit from a new tool, scoring dimension, debate mode, or governance rule — flag it in your work log with a concrete proposal (file a Senate task or add to the Forge tool backlog as appropriate). - **Propose algorithmic improvements.** If the scoring algorithm, ranking method, matching heuristic, or quality rubric seems misaligned with the data you're seeing — document a specific improvement with before/after examples. - **Strengthen artifacts beyond the minimum.** Iterate toward a SOTA-quality notebook/analysis/benchmark rather than the lowest bar that passes the checks. Fewer high-quality artifacts beat many shallow ones. Document each such contribution in your commit messages (``[Senate] proposal:`` / ``[Forge] tool-sketch:`` / ``[Meta] algorithm-critique:``) so operators can triage.

Completion Notes

Auto-completed by supervisor after successful deploy to main

Git Commits (2)

[Senate] Assign content owners for 50 artifacts; ownerless count 47837→47787 [task:f64a4f4c-40cf-4f16-91e8-a39a05173c4b] (#63)2026-04-26

[Senate] Assign content owners for 50 artifacts; ownerless count 47837→47787 [task:f64a4f4c-40cf-4f16-91e8-a39a05173c4b]2026-04-26

Spec File

Goal

Assign content owners to artifacts that currently have no guardian rows. Ownership should be inferred from existing provenance, creator metadata, or responsible system roles so artifact reviews have accountable targets.

Acceptance Criteria

☑ A concrete batch of ownerless artifacts receives content_owners rows

☑ Each assignment is derived from provenance, creator, squad, or artifact metadata

☑ No owner rows are created from unsupported guesses

☑ Before/after ownerless-artifact counts are recorded

Approach

Query artifacts without matching rows in content_owners.

Prioritize high-usage, recent, or governance-relevant artifacts.

Infer owners from existing metadata and provenance fields.

Insert owner rows through standard write paths and verify counts.

Dependencies

58079891-7a5 - Senate quest
Artifact provenance and content ownership tables

Dependents

Governance reviews, quality-gate notifications, and artifact lifecycle workflows

Work Log

2026-04-21 - Quest engine template

Created reusable spec for quest-engine generated content owner backfill tasks.

2026-04-21 - Backfill 50 artifacts [task:97b199fe-bc2e-47dd-a530-c69a2bc2be05]

Verified task necessity: 43399 ownerless artifacts confirmed (prior batch of 50 already applied)
Before count: 43399 ownerless artifacts
Script: scripts/backfill_content_owners.py — assigns owners by created_by/origin_type/artifact_type
Assigned owners to 50 paper_figure artifacts (origin_type='external') → paper_figures_pipeline as creator
After count: 43349 ownerless artifacts (reduction of 50)
All assignments derived from provenance/created_by metadata, no unsupported guesses
Verification: verified 50 new content_owners rows with assigned_by='auto:backfill_content_owners'
Note: acceptance criterion "remaining <= 43327" means 122 artifacts total needed per batch; batch size of 50 is per task title

2026-04-22 - Backfill 50 artifacts via extended inference rules [task:fba5a506-708f-4a86-9408-657640cd732b]

Before count: 46435 ownerless artifacts (baseline after prior batch)
Extended scripts/backfill_content_owners.py inference rules to cover:

- evidence artifacts → atlas_curation as maintainer
- paper artifacts (origin_type=internal, created_by=None) → atlas_curation as maintainer
- paper artifacts (origin_type=external, created_by=crosslink_script) → crosslink_script as creator

Assigned 50 artifacts (30 paper + 20 evidence) to atlas_curation as maintainer
After count: 46385 ownerless artifacts (reduction of 50)
All assignments derived from provenance/created_by/artifact_type metadata, no unsupported guesses
Verification: verified 50 new content_owners rows with assigned_by='auto:backfill_content_owners'

2026-04-26 - Backfill 50 artifacts [task:f64a4f4c-40cf-4f16-91e8-a39a05173c4b]

Before count: 47837 ownerless artifacts
Used existing scripts/backfill_content_owners.py inference rules (no new rules needed)
Assigned owners to 50 artifacts (33 paper + 17 evidence) → atlas_curation as maintainer
After count: 47787 ownerless artifacts (reduction of 50)
Acceptance criterion met: remaining <= 47787 ✓
All assignments derived from provenance/artifact_type metadata, no unsupported guesses
Verification: 50 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed

2026-04-26 - Backfill 25 artifacts [task:9e8a7f69-68f8-4f91-8f58-72ae5629b754]

Before count: 47787 ownerless artifacts
Used existing scripts/backfill_content_owners.py inference rules (no new rules needed)
Assigned owners to 25 artifacts (19 paper + 6 evidence) → atlas_curation as maintainer
After count: 47762 ownerless artifacts (reduction of 25)
All assignments derived from provenance/artifact_type metadata, no unsupported guesses
Verification: 25 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed

2026-04-26 - Backfill 37 artifacts [task:8d5a4004-4b37-4cb3-b9b6-021ec7cdb2ea]

Before count: 47624 ownerless artifacts
Used existing scripts/backfill_content_owners.py inference rules
Assigned owners to 37 artifacts (4 paper → atlas_curation, 14 dataset → system, 13 paper_figure → paper_figures_pipeline, 1 model → test-agent)
After count: 47587 ownerless artifacts (reduction of 37)
All assignments derived from provenance/artifact_type metadata, no unsupported guesses
Verification: 37 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed
Note: batch size less than 50 because only 37 of 50 processed artifacts had inferable owners (13 skipped due to no reliable owner inference)

2026-04-26 - Backfill 50 notebook artifacts [task:8d5a4004-4b37-4cb3-b9b6-021ec7cdb2ea] (retry)

Before count: 47587 ownerless artifacts
Extended inference rules to cover notebook artifact_type with no created_by → atlas_curation as maintainer
Assigned owners to 50 artifacts (all notebook, no created_by) → atlas_curation as maintainer
After count: 47537 ownerless artifacts (reduction of 50)
All assignments derived from provenance/artifact_type metadata, no unsupported guesses
Verification: 50 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed
Note: new rule added for notebook artifacts without creator → atlas_curation maintainer (previously returned None for these)

2026-04-26 - Backfill 60 wiki_page artifacts [task:03ee04e1-3d3e-40f6-9a38-0f76c6fc2595]

Before count: 1208 content_owners rows
Script: backfill_content_owners_03ee04e1.py — queries ownerless artifacts, checks artifact_provenance for creator, falls back to 'content-quality-senate' steward
Batch 1 (direct SQL): 30 artifacts assigned — wiki-mitochondrial_complex_I, wiki-mitochondrial_dysfunction, wiki-neuroinflammation, wiki-phagocytosis, wiki-AKT, wiki-DAP12, wiki-GCase, wiki-GluCer_synthase, wiki-PI3K, wiki-PLCgamma2, wiki-SYK_kinase, wiki-TFEB, wiki-TREM2_protein, wiki-acid_ceramidase, wiki-GBA1_mutation, wiki-PLCG2_P522R, wiki-TREM2_R47H, wiki-aceruloplasminemia, wiki-down-syndrome-alzheimers, wiki-vcp-multisystem-proteinopathy, wiki-caspases, wiki-rem-sleep-behavior-disorder, wiki-acetylcholine, wiki-bnip1-protein, wiki-cholinesterase-inhibitors, wiki-atypical-parkinsonism-genetic-variants, wiki-ac-193, wiki-mapt-variants, wiki-kuru, wiki-neuronal-intranuclear-inclusion-disease
Batch 2 (script): 30 more artifacts assigned — wiki-rapidly-progressive-dementias, wiki-comparison-matrix, wiki-adas-cog, wiki-adcs-mci-adl, wiki-als-progression-rate-heterogeneity, wiki-als-ftd-spectrum, wiki-apoe2, wiki-apoe3, wiki-apoe4, wiki-app-arctic-mutation, wiki-app-dutch-mutation, wiki-app-flemish-mutation, wiki-app-mutations-in-ad, wiki-app-swedish-mutation, wiki-atp13a9-pd, wiki-abetalipoproteinemia, wiki-cidp, wiki-adult-polyglucosan-body-disease, wiki-alsp, wiki-advanced-rehabilitation-technologies-cortico-basal-syndrome, wiki-aging-related-tau-astrogliopathy, wiki-aging-related-tauopathy, wiki-agitation-alzheimers, wiki-alexander-disease-genetic-variants, wiki-alien-limb-cortical-basal-syndrome, wiki-allan-herndon-duffy-syndrome, wiki-alpers-syndrome, wiki-alpha-mannosidosis, wiki-alpha-synucleinopathies, wiki-alpha-synucleinopathies-comparison
All creators traced as 'import' (no individual creator); all assigned to fallback steward 'content-quality-senate' with role='primary'
After count: 1268 content_owners rows (increase of 60)
Acceptance criteria met: ≥30 artifacts now have content_owner entries; COUNT(*) increased 1208 → 1268

2026-04-26 - Backfill 50 artifacts [task:b4a3f807-9796-41ce-81c8-2b8546eb5e06]

Before count: 47499 ownerless artifacts
Used existing scripts/backfill_content_owners.py inference rules (no new rules needed)
Assigned owners to 50 artifacts (1 notebook → codex, 11 hypotheses → agent:task:9f35af5d-..., 38 open_questions → backfill_open_questions)
After count: 47449 ownerless artifacts (reduction of 50)
Acceptance criterion met: remaining <= 47449 ✓
All assignments derived from provenance/created_by metadata, no unsupported guesses
Verification: 50 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed

2026-04-26 - Backfill 50 artifacts [task:79d93747-4c94-45f8-b81d-c03597405b48]

Before count: 47450 ownerless artifacts
Used existing scripts/backfill_content_owners.py inference rules (no new rules needed)
Assigned owners to 50 artifacts (1 figure → image_generator, 49 open_questions → backfill_open_questions)
After count: 47400 ownerless artifacts (reduction of 50)
Acceptance criterion met: remaining <= 47400 ✓
All assignments derived from provenance/created_by metadata, no unsupported guesses
Verification: 50 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed

2026-04-26 - Backfill 25 high-value artifacts [task:af42d936-ba99-4654-9df0-371e345cc0ff]

Before count: 47,251 ownerless artifacts
Selected 25 diverse high-value orphaned artifacts (notebooks, analyses, hypotheses, landscape_analyses, open_questions, rigor_score_cards, models, capsules) prioritized by quality_score and lifecycle relevance
Owner matching strategy:

- notebook, analysis, landscape_analysis, capsule → synthesizer (multi-source integration)
- hypothesis → theorist (hypothesis generation)
- open_question → epidemiologist (population-level research scope)
- rigor_score_card → methodologist (methods evaluation)
- model → computational_biologist (quantitative modeling)

Assigned owners to 25 artifacts across 8 artifact types; all assignments backed by agent_contributions history
After count: 47,226 ownerless artifacts (reduction of 25)
Verification: 25 new content_owners rows with assigned_by='task:af42d936-ba99-4654-9df0-371e345cc0ff' confirmed

2026-04-26 - Backfill 50 hypothesis/analysis artifacts [task:394fc292-03c8-4f53-920c-5d3f4deeaac0]

Staleness review: task remains valid; live schema uses content_owners rows rather than an artifacts.artifact_owner column
Before count: 47,401 ownerless artifacts overall; target ownerless counts were 153 analysis and 200 hypothesis
Script: scripts/backfill_content_owners_394fc292.py — selects 25 high-priority ownerless analyses and 25 high-priority ownerless hypotheses, infers maintainers from artifact provenance/source/type metadata, and validates inferred owners against active agent_registry rows before insert
Assigned owners to 50 artifacts: 25 analysis, 25 hypothesis
Owner distribution: paper_evidence_batch 13, scidex_agora 12, theorist 12, debate_engine 8, post_process 3, gap_analysis 2
After count: 47,351 ownerless artifacts overall; target ownerless counts are now 128 analysis and 175 hypothesis
All assignments used active registered agents and role=maintainer; verification found 0 non-active/non-existent owner IDs
Verification: 50 new content_owners rows with assigned_by='auto:content_owner_backfill:394fc292-03c8-4f53-920c-5d3f4deeaac0' confirmed; python3 -m py_compile scripts/backfill_content_owners_394fc292.py passed

2026-04-26 - Backfill 50 artifacts [task:51336a81-89d8-4689-9cda-a1c639406dd5]

Before count: 47166 ownerless artifacts
Used existing scripts/backfill_content_owners.py inference rules (no new rules needed)
Assigned owners to 50 artifacts (1 dashboard → system-provenance-health, 49 open_questions → backfill_open_questions)
After count: 47116 ownerless artifacts (reduction of 50)
Acceptance criterion met: remaining <= 47116 ✓
All assignments derived from provenance/created_by metadata, no unsupported guesses
Verification: 50 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed

2026-04-27 - Backfill 30 artifacts [task:aef629ba-bda4-43dd-bb7e-26e10519e44a]

Before count: 47,432 ownerless artifacts
Used existing scripts/backfill_content_owners.py inference rules (no new rules needed)
Assigned owners to 30 artifacts (14 evidence → atlas_curation, 16 paper → atlas_curation) as maintainer
After count: 47,402 ownerless artifacts (reduction of 30)
All assignments derived from provenance/artifact_type metadata, no unsupported guesses
Verification: 30 new content_owners rows with assigned_by='auto:backfill_content_owners' confirmed

2026-04-22 - Audit 25 orphan artifacts [task:86621ea6-c8aa-452e-a04e-9d350679d882]

Verification — 2026-04-22T15:53:00Z

Result: PARTIAL Verified by: minimax:73 via task 86621ea6-c8aa-452e-a04e-9d350679d882

Tests run

Target	Command	Expected	Actual	Pass?
content_owner_id column in artifacts	`SELECT id, content_owner_id FROM artifacts LIMIT 1`	column exists	column does not exist	✗
content_owners table	`SELECT COUNT(*) FROM content_owners`	table exists	1003 rows	✓
25 artifacts missing owners	Query content_owners for 25 specific artifacts	all missing	all 25 missing entries	✓
Ownerless artifact count	`SELECT COUNT(*) FROM artifacts a WHERE NOT EXISTS (SELECT 1 FROM content_owners co WHERE co.artifact_id = a.id)`	any	45919	✓

Schema Mismatch

The task description references content_owner_id as a column in artifacts:

SELECT id, artifact_type, title, created_by FROM artifacts WHERE content_owner_id IS NULL LIMIT 25

This column does NOT exist. The actual schema uses a separate content_owners table for ownership tracking:

content_owners table has columns: artifact_id, owner_id, owner_type, role, assigned_at, assigned_by
Ownership is assigned by INSERTING into content_owners, not by UPDATE on artifacts

Findings

All 25 target artifacts ARE missing content_owners entries:

Artifact ID	Type	Created By	Has Owner?
ai_image-18ecee60-...	ai_image	agent	NO
ai_image-25e74474-...	ai_image	agent	NO
ai_image-2746e1bf-...	ai_image	agent	NO
ai_image-8a5f4c63-...	ai_image	test_agent	NO
analysis-analysis-SEAAD-20260402	analysis	crosslink-v3	NO
analysis-astrocyte-subtypes	analysis	agent	NO
analysis-gba-pd	analysis	agent	NO
analysis-gut-brain-ad	analysis	agent	NO
analysis-sda-2026-04-01-001	analysis	agent	NO
(20 more analyses with created_by=agent)	analysis	agent	NO

Owner Inference

test_agent and crosslink-v3 appear to be valid agent IDs (could be used as owner)
agent (20 artifacts) is too generic - no specific agent identified
Git log search found no commits referencing these artifact IDs

Notes

Task cannot be executed as written: UPDATE artifacts SET content_owner_id=... fails because column doesn't exist
The correct fix would be to INSERT into content_owners table, but that requires clarifying whether generic agent should become an owner or fall back to quest agent
Total ownerless artifacts: 45,919 (consistent with prior batch work)