🏥 ML.NET Repository Health Dashboard

[github-actions]

🏥 ML.NET Repository Health Dashboard — 2026-05-09

Overall: 🔴 Unhealthy
Status: 🔴 4 critical · 🟡 3 warnings · 🔵 0 info

The ML.NET repository shows regression since March 9: untriaged issues increased by 4 (back to 216 from 212), open bugs +1, and total issues +3. Zero issues closed or PRs merged in the past week indicates low maintainer bandwidth. Long-standing critical issues persist: a 5-year-old P0 (#5805), 7-year-old security doc gap (#3604), 16 blocking-clean-ci issues, and community PRs aging for years. CI shows no recent failures but pass rate calculation is distorted by incomplete runs.

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🚨 Maintainer Action Required

Immediate (🔴 Critical)

• #5805 — P0: MKLImports PDB not included with packages (open 1809 days, ~5 years) — Missing debug symbols for redistributed binaries
• 216 untriaged issues — Up from 212 on March 9 (+4 new); critical backlog threshold exceeded (>50)
• 16 open blocking-clean-ci issues — Unchanged from March 9, ongoing CI stability concerns
• #3604 — Security: Documentation must warn "models = code" (open 2570 days, 7+ years)

Timely (🟡 Warning)

• 52 unanswered questions — Unchanged from March 9; all open questions are >7 days old with no maintainer response
• 23 open P1 issues — Unchanged from March 9; many exceed 30 days without activity
• Ancient stale community PRs:
  • #6449 — 1274 days (~3.5 years), no reviews
  • #7094 — 779 days (~2 years), 2 reviews
  • 6 total community PRs awaiting review

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📬 Pending Community Interactions

Items where a community member is waiting for a maintainer response.

#	Title	Type	Author	Waiting Since	Last Activity
#7174	Add AutoEncoder as Feature Selection Method	Issue	superichmann	2024-06-15	User replied 2025-02-24

Summary: 1 awaiting response · 216 untriaged · 6 unreviewed community PRs

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🔧 CI / Workflow Health

GitHub Actions (7-day summary)

Workflow	Runs	✅ Pass	❌ Fail	⏹️ Cancel	Rate
All workflows (main)	53	26	0	0	49%*

* Pass rate is 49% because 27 workflow runs have null conclusions (in-progress, skipped, or neutral). Of completed workflows with definitive outcomes, the success rate is 100% (26 success, 0 failures).

✅ No failed runs in last 24 hours on main branch
✅ No cancelled runs in last 24 hours

Azure DevOps Status (Heuristic)

• Open blocking-clean-ci issues: 16 (unchanged from March 9)
• Open Known Build Error issues: 16 (unchanged from March 9)

Blocking CI issue examples:

• #7419 — TestAppendMany_SizeMoreThanMaxBufferCapacity triggers OOM killer

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🐛 Bug & Issue Landscape

Metric	Current	7d Ago (Mar 9)	Δ	Trend
Open issues (total)	986	983	+3	↑
Open bugs	59	58	+1	↑
Untriaged issues	216	212	+4	↑
Open P0	1	1	—	→
Open P1	23	23	—	→
Issues opened (7d)	18	1	+17	↑
Issues closed (7d)	0	0	—	→

High-Priority Bugs (P0/P1)

#	Title	Priority	Assignee	Age (days)	Milestone
#5805	MKLImports PDB not included with packages	P0	—	1809	—
#7447	Legacy images need to be updated	P1	—	380	—
#6588	Error: "ML.NET supports 'x64' and 'x86' processor" on linux-arm*	P1	—	1164	—
#6370	Exposing the tree for multiclass classification	P1	—	1305	—
#6353	CreateEnumerable fails in VS FSI but works in .NET Interactive	P1	—	1312	—

Note: Showing top 5 of 23 P1 issues. Full P1 list.

🔒 Security Issues

#	Title	Age (days)	Last Update
#3604	Ensure documentation warns: models = code	2570	2020-01-10

---

📥 Pull Request Status

Metric	Current	7d Ago (Mar 9)	Δ	Trend
Open PRs	13	13	—	→
PRs merged (7d)	0	1	-1	↓
Community PRs awaiting review	6	6	—	→

Open PRs Needing Attention

#	Title	Author	Age (days)	Reviews	Labels
#6449	Add DataViewSchema overloads to ConvertToOnnx	FranklinWhale	1274	0	community-contribution
#7094	Add support for Apache.Arrow.Types.Decimal128Type	piyushdubey	779	2	community-contribution
#7569	fix: performance of erfinv #7568	JeWaVe	114	1 (changes requested)	needs-author-action, community-contribution
#7605	Expose quantile regression objective in LightGbmRegressionTrainer	Sam7	25	0	community-contribution

---

📊 7-Day Trends

Metric	Current	Previous (Mar 9)	Δ	Trend
Issues opened/day	2.6	0.14	+2.46	↑
Issues closed/day	0.0	0.0	—	→
PRs merged/day	0.0	0.14	-0.14	↓
GH Actions pass rate	49%	96%	-47%	↓

Note: Pass rate drop is due to many workflows with null conclusions (in-progress/skipped). Actual completion rate of finished workflows is 100% (0 failures).

---

💡 Recommendations

1. Resume triage and closure activity — Untriaged issues increased (+4), and zero issues closed in 7 days indicates maintainer bandwidth constraints; prioritize closing or triaging the 216-issue backlog
2. Investigate 18 new issues in 7 days — Sharp increase from previous baseline (1/week); determine if this is organic growth or reporting anomaly
3. Resolve ancient technical debt:
   • P0 #5805 (1809 days, 5 years): Either fix MKLImports PDB issue or downgrade priority with documented justification
   • Security #3604 (2570 days, 7 years): Close if documentation updated, or implement the warning
   • PR #6449 (1274 days, 3.5 years): Review, merge, or close with feedback to respect contributor effort
4. Address 52 unanswered questions — All open questions are >7 days old with no maintainer comments; may indicate resource constraints or community engagement gap
5. Review 16 blocking-clean-ci issues — Unchanged since March 9; prioritize fixes or close if no longer blocking

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🔍 Correlation Insights

• Triage momentum lost — Untriaged issues increased by 4 (212→216) after significant reduction from earlier runs; suggests triage process stalled
• Zero closure velocity — No issues closed or PRs merged in 7 days indicates low maintainer bandwidth or inactive period
• CI health stable — No failures in GitHub Actions last 24h; pass rate drop (96%→49%) is due to incomplete/skipped runs, not actual failures
• Ancient technical debt unchanged — P0 at 1809 days, security doc at 2570 days, PR at 1274 days all persist from March 9; suggests ownership gaps or de-prioritization
• Community engagement gap — 6 community PRs aging without review (oldest at 1274 days); may discourage future contributions
• Issue influx — 18 issues opened in 7 days (up from 1/week) suggests either increased community activity or data collection timing anomaly

---

_{🤖 Generated by ML.NET Repo Health Check · 2026-05-09T17:08:38Z UTC}

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-04

Overall: 🔴 Unhealthy
🔴 4 critical · 🟡 5 warnings · 🔵 2 info

🆕 What Changed Since Last Run (First run)

This is the first comprehensive health check run for the dotnet/machinelearning repository. All metrics below represent the initial baseline for future comparisons.

Metric Baseline:

Metric	Current
Untriaged issues	169
Open bugs	58
Open P0	1
Open P1	23
Open PRs	12
Unanswered questions	52
Unreviewed community PRs	5
GH Actions pass rate	100%
Critical findings	4
Warning findings	5

🚨 Critical Items Identified:

• 169 untriaged issues — Massive backlog requiring systematic triage
• P0 issue #5805 — Open for 1,743 days (4.8 years): "MKLImports PDB not included with packages"
• 16 blocking-clean-ci issues — Azure DevOps CI pipeline health is compromised
• Security issue #3604 — Open for 2,500 days (6.8 years): Documentation warning needed for model security

🟡 Warning Items Identified:

• 52 unanswered questions — All open question issues lack maintainer responses
• 23 P1 issues — All are > 30 days old; oldest is 1,752 days
• 5 community PRs awaiting review — Oldest is 1,208 days old
• 4 issues awaiting user input with new activity — Users have replied and need follow-up
• 6 stale PRs — Half of all open PRs are > 90 days old

📈 Notable Observations:

• Zero activity in last 7 days (0 issues opened/closed, 0 PRs merged) — may indicate maintenance pause or data anomaly
• GitHub Actions workflows are healthy (100% pass rate), but Azure DevOps has significant issues
• Large accumulated technical debt: P0 open 4.8 years, security issue 6.8 years, oldest community PR 3.3 years

📊 Current Snapshot

• Untriaged issues: 169
• Open bugs: 58
• Unanswered questions: 52
• Unreviewed PRs: 12 (5 community)
• CI status: ✅ GH Actions (100%) / 🔴 AzDO (16 blocking issues)
• Community items awaiting response: 4

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-04

Overall: 🟡 Needs Attention
🔴 3 · 🟡 4 · 🔵 2

🆕 First Run — Baseline Established

This is the first run of the ML.NET Repository Health Check. All metrics below represent the initial baseline. Future runs will compare against these values to show trends and deltas.

Current Snapshot:

• Untriaged issues: 100 (🔴 above threshold of 50)
• Open bugs: 58
• Open P0: 1 (issue #5805, 1752 days old)
• Open P1: 23 (many >1000 days old)
• Open PRs: 12
• Unanswered questions (>7d): 52 (🔴 above threshold of 15)
• Community PRs awaiting review: 5 (including #6449 at 1208 days)
• CI status: 🟢 GH Actions (100% pass rate) / 🟢 AzDO (no blocking issues)

🔴 Critical Items Identified:

1. P0 Issue Open 1752 Days: #5805 — MKLImports PDB not included with packages
2. Large Untriaged Backlog: 100 issues need triage (threshold: 50)
3. Stale Community PRs: Multiple PRs awaiting maintainer review for 700+ days

🟡 Warnings:

• 52 unanswered questions >7 days old (threshold: 15)
• 23 P1 issues open (many very old)
• 1 open security issue (#3604, documentation gap)
• 5 PRs open >90 days

Key Insight: Repository shows excellent CI health but significant maintainer bandwidth constraints for community engagement. Triage sprint and community PR review session recommended.

---

Next run will show metric deltas and highlight new vs. resolved items.

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-04

Overall: 🔴 Unhealthy
🔴 4 · 🟡 5 · 🔵 2

🆕 What Changed Since Last Run (First Run)

First run — no previous data for comparison. All items below are the initial baseline.

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	N/A	211	—
Open bugs	N/A	58	—
Open P0	N/A	1	—
Open P1	N/A	23	—
Open PRs	N/A	12	—
Unanswered questions	N/A	52	—
Unreviewed PRs	N/A	1	—
GH Actions pass rate	N/A	100%	—
Critical findings	N/A	4	—
Warning findings	N/A	5	—

🚨 New Critical Items (not in previous run):

• P0 Issue #5805 — MKLImports PDB not included with packages (open 1752 days)
• Untriaged backlog — 211 untriaged issues (threshold: 50)
• 16 blocking-clean-ci issues — Critical CI/build problems preventing clean builds
• Stale community PR #6449 — No reviews in 1208 days

✅ Resolved Since Last Run:
None resolved (first run).

📈 Notable Movements:
All metrics are baseline measurements (first run).

📊 Current Snapshot

• Untriaged issues: 211
• Open bugs: 58
• Unanswered questions: 52
• Unreviewed PRs: 1
• CI status: 🟢 GH Actions / 🔴 AzDO (heuristic)
• Community items awaiting response: 4

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-04

Overall: 🔴 Unhealthy
🔴 4 · 🟡 4 · 🔵 0

🆕 What Changed Since Last Run (2026-03-04)

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	211	211	→
Open bugs	58	58	→
Open P0	1	1	→
Open P1	23	23	→
Open PRs	12	12	→
Unanswered questions	52	52	→
Unreviewed PRs	1	1	→
GH Actions pass rate	100%	100%	→
Critical findings	4	4	→
Warning findings	5	4	↓1

🚨 New Critical Items (not in previous run):
✅ No new critical items.

✅ Resolved Since Last Run:
None resolved.

📈 Notable Movements:

• Warning findings decreased by 1 (from 5 to 4) — minor improvement in severity classification
• All other key metrics remain completely stable since last run
• Zero activity detected: No issues opened, closed, or PRs merged in last 7 days — potential concern about maintainer bandwidth

📊 Current Snapshot

• Untriaged issues: 211
• Open bugs: 58
• Unanswered questions: 18 (out of 52 total questions >7d old, 0 maintainer comments)
• Unreviewed PRs: 12 (all open PRs have 0 reviews)
• CI status: 🟢 GH Actions (100% pass rate) / 🔴 AzDO (16 blocking-clean-ci issues)
• Community items awaiting response: 4

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-05

Overall: 🔴 Unhealthy
🔴 4 · 🟡 4 · 🔵 0

🆕 What Changed Since Last Run (2026-03-04)

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	211	211	→
Open bugs	58	58	→
Open P0	1	1	→
Open P1	23	23	→
Open PRs	12	12	→
Unanswered questions	52	52	→
Unreviewed PRs	12	12	→
GH Actions pass rate	100%	100%	→
Critical findings	4	4	→
Warning findings	4	4	→

🚨 New Critical Items (not in previous run):
✅ No new critical items — all critical issues persist from previous run:

• P0 #5805 (1745 days) continues aging
• 211 untriaged backlog unchanged
• 16 blocking-clean-ci issues unchanged
• Community PR #6449 (1209 days) still unreviewed

✅ Resolved Since Last Run:
None resolved — all critical and warning items persist unchanged.

📈 Notable Movements:

• Zero activity detected: No issues opened, closed, or PRs merged in the last 7 days
• All metrics remain completely flat compared to previous run
• Stagnation continues — no progress on any front

📊 Current Snapshot

• Untriaged issues: 211 🔴
• Open bugs: 58
• Unanswered questions: 52 🟡
• Unreviewed PRs: 12 (including 1 community PR at 1209 days)
• CI status: 🟢 GH Actions (100%) / 🔴 AzDO (16 blocking-clean-ci issues)
• Community items awaiting response: 3

⚠️ Key Concern: Complete lack of movement suggests the repository may be in maintenance-only mode or experiencing significant maintainer bandwidth constraints.

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-06

Overall: 🔴 Unhealthy
🔴 4 · 🟡 4 · 🔵 0

🆕 What Changed Since Last Run (2026-03-05)

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	211	100	-111 🎉
Open bugs	58	58	→
Open P0	1	1	→
Open P1	23	23	→
Open PRs	12	12	→
Unanswered questions	52	52	→
Unreviewed PRs	12	12	→
GH Actions pass rate	100%	100%	→
Critical findings	4	4	→
Warning findings	4	4	→

🚨 New Critical Items (not in previous run):
✅ No new critical items.

✅ Resolved Since Last Run:
None resolved.

📈 Notable Movements:

• Untriaged issues ↓111 (from 211 to 100, -53%) — MAJOR IMPROVEMENT! 🎉 This is the most significant single-day triage progress observed. Investigation recommended to identify what enabled this breakthrough and how to sustain the momentum.
• All other metrics stable — P0 (1), P1 (23), bugs (58), PRs (12), CI pass rate (100%) unchanged.

📊 Current Snapshot

• Untriaged issues: 100 (down from 211)
• Open bugs: 58
• Unanswered questions: 52
• Unreviewed PRs: 12 (including 1 community PR open 1210 days)
• CI status: ✅ GH Actions (100% pass, 0 failures in 24h) / 🔴 AzDO (16 blocking-clean-ci issues)
• Community items awaiting response: 0 (no recent user replies to "Awaiting User Input")

Key Context: While the untriaged backlog saw dramatic improvement, the four long-standing critical issues persist unchanged: P0 #5805 (1746 days), 16 blocking-clean-ci issues, stale community PR #6449 (1210 days), and security issue #3604 (2505 days). These represent multi-year technical debt requiring dedicated resolution efforts.

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-07

Overall: 🔴 Unhealthy
🔴 4 · 🟡 4 · 🔵 0

🆕 What Changed Since Last Run (2026-03-06)

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	100	212	+112 📈
Open bugs	58	58	→
Open P0	1	1	→
Open P1	23	23	→
Open PRs	12	13	+1
Unanswered questions	52	52	→
Unreviewed PRs	12	13	+1
GH Actions pass rate	100%	100%	→
Critical findings	4	4	→
Warning findings	4	4	→

🚨 New Critical Items (not in previous run):

• Untriaged Backlog SURGE — Jumped from 100 to 212 (+112, +112%). Major regression reversing yesterday's 53% improvement. This is the most significant change requiring immediate investigation.

✅ Resolved Since Last Run:
None resolved.

📈 Notable Movements:

• Untriaged issues ↑112 (from 100 to 212, +112%) — MAJOR REGRESSION. This reverses yesterday's celebrated improvement of -111 issues. Root cause unknown but requires urgent investigation.
• Issues opened ↑15 (from 0 to 15 in 7-day window) — Shows recent activity uptick
• Open PRs ↑1 (from 12 to 13) — Slight increase
• All other metrics stable: P0 (1), P1 (23), bugs (58), questions (52), blocking-clean-ci (16) unchanged

📊 Current Snapshot

• Untriaged issues: 212 🔴
• Open bugs: 58
• Unanswered questions: 52
• Unreviewed PRs: 13
• CI status: ✅ GH Actions (100% pass rate) / 🔴 AzDO (16 blocking issues)
• Community items awaiting response: 4 with "Awaiting User Input" label, 0 with recent user activity

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-08

Overall: 🔴 Unhealthy
🔴 4 · 🟡 3 · 🔵 0

🆕 What Changed Since Last Run (2026-03-07)

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	212	212	→
Open bugs	58	58	→
Open P0	1	1	→
Open P1	23	23	→
Open PRs	13	14	+1
Unanswered questions	52	52	→
Unreviewed PRs	13	6	-7
GH Actions pass rate	100%	94%	-6%
Critical findings	4	4	→
Warning findings	4	3	-1

🚨 New Critical Items (not in previous run):
✅ No new critical items — all critical findings remain from previous runs

✅ Resolved Since Last Run:
None resolved — all critical items persist

📈 Notable Movements:

• Open PRs ↑1 (from 13 to 14)
• GH Actions pass rate ↓6% (from 100% to 94%) — "Repo Health Dashboard Groomer" workflow still at 50% success rate
• Unreviewed community PRs count corrected to 6 (previously reported as 13 total PRs)

📊 Current Snapshot

• Untriaged issues: 212
• Open bugs: 58
• Unanswered questions: 52
• Unreviewed community PRs: 6
• CI status: 🔴 GH Actions (1 failure last 24h, 94% 7d pass rate) / 🔴 AzDO (16 blocking-clean-ci)
• Community items awaiting response: 4

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-09

Overall: 🔴 Unhealthy
🔴 4 · 🟡 3 · 🔵 0

🆕 What Changed Since Last Run (2026-03-08)

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	212	212	→
Open bugs	58	58	→
Open P0	1	1	→
Open P1	23	23	→
Open PRs	14	13	-1
Unanswered questions	52	52	→
Unreviewed PRs	6	6	→
GH Actions pass rate	94%	96%	+2%
Critical findings	4	4	→
Warning findings	3	3	→

🚨 New Critical Items (not in previous run):
✅ No new critical items.

✅ Resolved Since Last Run:
None resolved.

📈 Notable Movements:

• Open PRs ↓1 (from 14 to 13) — 1 PR merged in last 24h
• GH Actions pass rate improved from 94% to 96%
• Cancelled runs: 1 in last 24h (Investigate Finding workflow)
• Dashboard Groomer workflow improved: 67% success rate (2/3) vs. 50% (1/2) yesterday

📊 Current Snapshot

• Untriaged issues: 212
• Open bugs: 58
• Unanswered questions: 52
• Unreviewed PRs: 6
• CI status: 🟢 GH Actions (96%) / 🔴 AzDO (16 blocking-clean-ci)
• Community items awaiting response: 4

Generated by ML.NET Repository Health Check

[github-actions]

📋 Health Check — 2026-03-10

Overall: 🔴 Unhealthy
🔴 4 · 🟡 5 · 🔵 0

🆕 What Changed Since Last Run (2026-03-09)

Metric Deltas:

Metric	Previous	Current	Δ
Untriaged issues	212	212	→
Open bugs	58	52	-6 ✅
Open P0	1	1	→
Open P1	23	23	→
Open PRs	13	14	+1
Unanswered questions	52	20	-32 ✅
Unreviewed PRs	6	5	-1 ✅
GH Actions pass rate	96%	84%	-12pp ⚠️
Critical findings	4	4	→
Warning findings	3	5	+2

🚨 New Critical Items (not in previous run):
✅ No new critical items — all 4 critical findings were already known yesterday.

✅ Resolved Since Last Run:
None resolved — critical items remain unchanged.

📈 Notable Movements:

• Open bugs ↓6 (58 → 52) — Good progress on bug resolution 🎉
• Unanswered questions ↓32 (52 → 20) — Likely refinement in counting methodology (verification needed)
• GH Actions pass rate ↓12pp (96% → 84%) — CI instability, "Dashboard Groomer" workflow had failures ⚠️
• Open PRs ↑1 (13 → 14) — One new PR opened
• Unreviewed PRs ↓1 (6 → 5) — One PR gained review or was closed
• Warning findings ↑2 (3 → 5) — New warnings: CI pass rate drop + bugs decrease being monitored

📊 Current Snapshot

• Untriaged issues: 212 🔴
• Open bugs: 52 (↓6) ✅
• Unanswered questions: 20+ (>7d)
• Unreviewed PRs: 5
• CI status: 🟡 GH Actions (84%) / 🔴 AzDO (16 blocking)
• Community items awaiting response: 8+

Generated by ML.NET Repository Health Check