Metrics Inventory¶

This inventory tracks the implementation status of all metrics defined in the dev-health-ops project. Work item metrics assume provider data has been synced via python cli.py sync work-items ... (use -s to filter repos; --auth to override GitHub/GitLab tokens when needed; tags/settings filtering planned).

1. Delivery & Velocity (Flow & DORA)¶

Metric	Status	Source/Implementation
Cycle Time (PR)	[x]	metrics/compute.py
Coding Time	[x]	metrics/compute.py
Review Time	[x]	metrics/compute.py
Pickup Time	[x]	metrics/compute.py
Deploy Time	[x]	GitHub/GitLab: Synced via `sync deployments --provider github\|gitlab`. Computed in compute_deployments.py
Deployment Frequency	[x]	Derived from deployments table + fallback to `prs_merged`
Lead Time for Changes	[x]	DORA metric in compute.py
MTTR	[x]	Calculated from Bug work items + Incident records
Change Failure Rate	[x]	Calculated from "revert" PRs in compute.py
Work Item Cycle Time	[x]	metrics/compute_work_items.py
Work Item Lead Time	[x]	metrics/compute_work_items.py
WIP Count/Age	[x]	metrics/compute_work_items.py
Flow Efficiency	[x]	metrics/compute_work_items.py
CI/CD Pipeline Metrics	[x]	GitHub/GitLab: Synced via `sync cicd --provider github\|gitlab`. Computed in compute_cicd.py
Incident MTTR	[x]	GitHub/GitLab: Issues labeled 'incident'. Computed in compute_incidents.py

2. Code Quality & Risk¶

Metric	Status	Source/Implementation
Churn	[x]	Total LOC touched in compute.py
Rework Rate (30-day)	[x]	Computed in quality.py and wired in job_daily.py
File Hotspot Score	[x]	metrics/hotspots.py combining churn and contributor count
PR Size	[x]	`avg_commit_size_loc` and `large_pr_ratio` in compute.py
PR Rework Ratio	[x]	`pr_rework_ratio` in compute.py (based on changes requested)
Defect Introduction Rate	[x]	metrics/compute_work_items.py (bugs created vs items closed)
Single Owner File Ratio	[x]	Computed in quality.py and wired in job_daily.py
Cyclomatic Complexity	[x]	Computed via `metrics complexity` using `radon`. Stored in `file_complexity_snapshots` (per-file) and `repo_complexity_daily`; loaded in `metrics daily` via `store.get_complexity_snapshots()`.

3. Investment & Portfolio¶

Metric	Status	Source/Implementation
Investment Allocation	[x]	Classified via `InvestmentClassifier` in `analytics/investment.py`. Rules in `config/investment_areas.yaml`.
Project Stream Churn	[x]	LOC churn aggregated by project stream and investment area.
Strategic vs KTLO %	[x]	Derived from Investment Allocation daily rollups.

4. IC Metrics & Landscape (New)¶

Metric	Status	Source/Implementation
IC Throughput	[x]	`delivery_units` (PRs merged + Items completed) in metrics/compute_ic.py. Relies on `identity_mapping.yaml`.
IC Churn	[x]	`loc_touched` (Additions + Deletions) in metrics/compute_ic.py
IC Cycle Time	[x]	`cycle_p50_hours` (PR median cycle time) in metrics/compute_ic.py
IC Active WIP	[x]	`work_items_active` (Items in progress/review/blocked) in metrics/compute_ic.py
Landscape: Churn vs Throughput	[x]	2D map with team percentile normalization in metrics/compute_ic.py
Landscape: Cycle vs Throughput	[x]	2D map with team percentile normalization in metrics/compute_ic.py
Landscape: WIP vs Throughput	[x]	2D map with team percentile normalization in metrics/compute_ic.py

4. Collaboration & Team Dynamics¶

Metric	Status	Source/Implementation
Review Responsiveness	[x]	`pr_pickup_time_p50_hours` in compute.py
Review Load	[x]	`reviews_given` in compute.py
Review Reciprocity	[x]	Ratio of reviews given vs received in compute.py
Bus Factor	[x]	metrics/knowledge.py (Truck Factor: min authors for 50% churn)
Knowledge Distribution	[x]	metrics/knowledge.py (Gini Coefficient of churn ownership)

5. Developer Well-being & Cognitive Load¶

Metric	Status	Source/Implementation
Late-night Activity	[x]	metrics/compute_wellbeing.py
Weekend Activity	[x]	metrics/compute_wellbeing.py
Burnout Risk Score	[x]	Combined after-hours/weekend activity per developer
Flow Score	[ ]	Requires IDE telemetry
Cognitive Load	[ ]	Requires IDE telemetry

6. Systemic & Process Health¶

Metric	Status	Source/Implementation
Bottleneck Index	[x]	metrics/compute_work_item_state_durations.py
WIP Congestion	[x]	metrics/compute_work_items.py (WIP / Weekly Throughput)
Predictability Index	[x]	metrics/compute_work_items.py (Completion Rate: Completed / (Completed + WIP))
Pipeline Success Rate	[x]	metrics/compute_cicd.py (GitHub only, GitLab pending)
Deploy Success Rate	[x]	metrics/compute_deployments.py