🏥 ML.NET Repository Health Dashboard

[github-actions]

🏥 ML.NET Repository Health Dashboard — 2026-05-06

Overall: 🔴 Unhealthy
Status: 🔴 5 critical · 🟡 5 warnings · 🔵 0 info

The ML.NET repository shows concerning trends after 58 days. Untriaged issues climbed back to 216 (from 212 on Mar 9, reversing earlier progress shown May 5 at 100). Ancient technical debt persists: P0 #5805 (1,807 days) and Security #3604 (2,567 days) remain unresolved. Critical new concern: GitHub Actions pass rate collapsed to 28% (5/18 runs) due to "Inclusive Heat Sensor" workflow failing repeatedly. Open PR count remains at 1 — excellent progress maintained.

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🚨 Maintainer Action Required

Immediate (🔴 Critical)

• P0 #5805 — MKLImports PDB not included with packages — 1,807 days old — Missing PDBs for MKLImports binaries. Manual build process needs automation.
• Security #3604 — Ensure documentation warns: models = code — 2,567 days old — ML.NET models from untrusted sources can lead to arbitrary code execution. Documentation warning needed.
• Untriaged Backlog — 216 issues (up from 212 on Mar 9, +4) — Triage progress has stalled/reversed after earlier gains.
• 🚨 CI Collapse — GitHub Actions pass rate: 28% (5 success / 18 runs excluding skipped) — down from 96% on Mar 9. "Inclusive Heat Sensor" workflow failing with 13 startup_failure runs in 7 days.
• Blocking CI Issues — 16 open blocking-clean-ci issues — Persistent CI reliability problems (view all).

Timely (🟡 Warning)

• Unanswered Questions — 52 open questions >7 days old with no maintainer response. Oldest from 2018 (#181 - Reinforcement learning).
• P1 Issues — 23 open P1 issues requiring attention.
• Stale Community PR — PR #6449 open 1,271 days with 0 reviews (Add DataViewSchema overloads to ConvertToOnnx) — Community contribution abandoned.
• Rising Bug Count — Open bugs increased from 58 to 59 (+1).
• Low Velocity — Only 1 issue closed in last 7 days, 0 PRs merged.

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📬 Pending Community Interactions

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

Awaiting User Input (4 issues)

#	Title	Author	Created	Last Updated
#7174	Add AutoEncoder as a Feature Selection Method	superichmann	2024-06-15	2025-02-24
#6045	Long Column names are unexpectedly dropped in training	torronen	2022-01-12	2022-10-08
#6034	Crashing in UWP Release, but not in Debug	isaac12391	2022-01-07	2022-01-10
#5779	object detection output float32[None,None2,13,13]	masgh021	2021-05-02	2021-06-03

Summary: 216 untriaged · 1 unreviewed PR · 52 unanswered questions · 4 awaiting user input

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🔧 CI / Workflow Health

🚨 Critical: GitHub Actions Failing (7-day summary)

Metric	Count	%
Total runs (main branch, non-skipped)	18	100%
✅ Success	5	27.8%
❌ Failure / startup_failure	13	72.2%
Pass Rate	5/18	27.8%

❌ CRITICAL: Pass Rate Collapse — CI success rate fell from 96% (Mar 9) to 28% (May 6) — a -68pp decline. The "Inclusive Heat Sensor" workflow is failing repeatedly with startup_failure status (13 failures in 7 days). This blocks development and PR merging.

Last 24h: No test failures, but multiple startup failures detected on "Inclusive Heat Sensor" workflow.

Failed/Problem Workflows (7-day detail)

• Inclusive Heat Sensor: 13 startup_failure runs
• Add Tests for PR Changes: 12 runs skipped (dependent on Inclusive Heat Sensor)
• Backport PR to branch: 1 success
• Repo Health workflows: 3 successes
• Locker: 1 success

Azure DevOps Status (Heuristic)

• Open blocking-clean-ci issues: 16
• Open Known Build Error issues: 16

Top Blocking CI Issues:

• #7419 — TestAppendMany_SizeMoreThanMaxBufferCapacity triggers OOM killer
• #7447 — Legacy images need to be updated (CentOS 8, Ubuntu 18/20)
• #7600 — SdcaLogisticRegression test fails on macOS ARM64 Release

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🐛 Bug & Issue Landscape

Metric	Current	Previous (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)	1	0	+1	↑

High-Priority Bugs (P0/P1)

P0 Issues (1 open):

#	Title	Priority	Assignee	Age (days)	Milestone
#5805	MKLImports PDB not included with packages	P0	—	1,807	—

P1 Issues: 23 open (view all)

🔒 Security Issues

#	Title	Age (days)	Labels
#3604	Ensure documentation warns: models = code	2,567	documentation, Security, P3

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📥 Pull Request Status

Metric	Current	Previous (Mar 9)	Δ	Trend
Open PRs	1	13	-12	↓
PRs merged (7d)	0	1	-1	↓
Community PRs awaiting review	1	6	-5	↓

🎉 Excellent Progress: PR count remains at 1 (12 PRs closed/merged since March 9).

Open PRs Needing Attention

#	Title	Author	Age (days)	Reviews	Labels
#6449	Add DataViewSchema overloads to ConvertToOnnx	FranklinWhale	1,271	0	community-contribution

⚠️ Recommendation: PR #6449 is 3.5 years old with no reviews. Either review/merge or close with explanation.

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📊 7-Day Trends (Apr 29 - May 6)

Metric	Current	Previous (Mar 2-9)	Δ	Trend
Issues opened/day	2.57	0.14	+2.43	↑
Issues closed/day	0.14	0	+0.14	↑
PRs merged/day	0	0.14	-0.14	↓
GH Actions pass rate	27.8%	96%	-68.2pp	↓

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💡 Recommendations

1. 🚨 URGENT: Fix "Inclusive Heat Sensor" Workflow — This workflow is blocking CI with 13 startup_failure runs in 7 days (72% failure rate). Investigate workflow configuration, permissions, or dependencies. This is preventing PR merges and development progress.

2. Close or Resolve Ancient Technical Debt — P0 #5805 (1,807 days) and Security #3604 (2,567 days) have been open for 5-7 years. These issues damage repository credibility. Either fix immediately or explicitly close with documented rationale (e.g., "won't fix", "by design", "duplicate").

3. Investigate Triage Regression — Untriaged count rose from 212 to 216 (+4) after earlier progress (was 100 on May 5 run). Verify if this is real data or collection anomaly. If real, resume aggressive triage to reach <50 target.

4. Review or Close Stale Community PR #6449 — Open 1,271 days (3.5 years) with 0 reviews. Community contributor has likely moved on. Either review/merge immediately or close with "stale/inactive" label and thank contributor.

5. Address Stale Questions — 52 questions >7 days old with no maintainer response (oldest from 2018). Consider bulk-closing questions >2 years old with notice directing users to ask fresh questions with updated context.

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🔍 Correlation Insights

• 🚨 CI Health Crisis — The 68pp drop in pass rate (96% → 28%) is driven entirely by "Inclusive Heat Sensor" workflow failures. This is the single most critical issue blocking repository health.
• Ancient Technical Debt Plateau — P0 and Security issues open 1,800-2,500 days suggest these are either orphaned, deprioritized, or "known limitations" not formally closed. Need explicit resolution.
• Triage Momentum Lost — After excellent progress to 100 untriaged on May 5, count is now back to 216 (worse than Mar 9). Suggests either data collection inconsistency or triage backlog is being refilled faster than cleared.
• PR Management Success Sustained — Open PRs remain at 1 (down from 13 on Mar 9). Strong progress maintained.
• Low Development Velocity — 0 PRs merged in 7 days despite only 1 open PR suggests CI failures are blocking merges, or development focus is elsewhere.
• Increased Issue Activity — 18 issues opened in 7 days (vs. 1 in previous period) suggests increased community engagement or bot activity. Only 1 closed indicates backlog is growing.
• Unanswered Questions Stable but High — 52 unanswered questions unchanged since March. This backlog needs attention but isn't growing.

---

_{🤖 Generated by ML.NET Repo Health Check · 2026-05-06T17:51:55Z 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