skills-hub/package/PACKAGES_INDEX.md

# Mechanical Skills Packages Index

## Snapshot

| Item | Value |
| --- | --- |
| Generated (UTC) | `2026-03-19 14:25:13 UTC` |
| Valid skills packaged | **34** |
| Per-skill formats | `.skill` and `.zip` (separate folders) |
| Bundle | [`mechanical-skills-collection.zip`](bundles/mechanical-skills-collection.zip) |
| Validation status | **PASS** (8/8) |

## Quick Links

- [Per-skill root](per-skill/)
- [Per-skill `.skill`](per-skill/skill/)
- [Per-skill `.zip`](per-skill/zip/)
- [Bundle archive](bundles/mechanical-skills-collection.zip)
- [Upload markdown exports](upload-md/)
- [Skill sources](../skill/)

## Skill Catalog

| Skill | Scope | Source | Packages | Markdown |
| --- | --- | --- | --- | --- |
| `bearings-seals-selection` | Bearing and seal selection for rotating equipment. | [`bearings-seals-selection/SKILL.md`](../skill/bearings-seals-selection/SKILL.md) | [`.skill`](per-skill/skill/bearings-seals-selection.skill) / [`.zip`](per-skill/zip/bearings-seals-selection.zip) | [`bearings-seals-selection.md`](upload-md/bearings-seals-selection.md) |
| `calculation-report` | Calculation report preparation for auditable engineering calculations. | [`calculation-report/SKILL.md`](../skill/calculation-report/SKILL.md) | [`.skill`](per-skill/skill/calculation-report.skill) / [`.zip`](per-skill/zip/calculation-report.zip) | [`calculation-report.md`](upload-md/calculation-report.md) |
| `cnc-sheet-casting-forging` | Detailed manufacturing guidance for CNC machining, sheet metal, casting, and forging. | [`cnc-sheet-casting-forging/SKILL.md`](../skill/cnc-sheet-casting-forging/SKILL.md) | [`.skill`](per-skill/skill/cnc-sheet-casting-forging.skill) / [`.zip`](per-skill/zip/cnc-sheet-casting-forging.zip) | [`cnc-sheet-casting-forging.md`](upload-md/cnc-sheet-casting-forging.md) |
| `design-review-fmea` | Structured design review and FMEA for risk reduction. | [`design-review-fmea/SKILL.md`](../skill/design-review-fmea/SKILL.md) | [`.skill`](per-skill/skill/design-review-fmea.skill) / [`.zip`](per-skill/zip/design-review-fmea.zip) | [`design-review-fmea.md`](upload-md/design-review-fmea.md) |
| `dfm-dfa-review` | Design for manufacturing and assembly review for mechanical products. | [`dfm-dfa-review/SKILL.md`](../skill/dfm-dfa-review/SKILL.md) | [`.skill`](per-skill/skill/dfm-dfa-review.skill) / [`.zip`](per-skill/zip/dfm-dfa-review.zip) | [`dfm-dfa-review.md`](upload-md/dfm-dfa-review.md) |
| `dynamics-vibrations-analysis` | Rigid-body dynamics and vibration response analysis. | [`dynamics-vibrations-analysis/SKILL.md`](../skill/dynamics-vibrations-analysis/SKILL.md) | [`.skill`](per-skill/skill/dynamics-vibrations-analysis.skill) / [`.zip`](per-skill/zip/dynamics-vibrations-analysis.zip) | [`dynamics-vibrations-analysis.md`](upload-md/dynamics-vibrations-analysis.md) |
| `energy-efficiency-analysis` | Energy efficiency optimization for mechanical and thermo-fluid systems. | [`energy-efficiency-analysis/SKILL.md`](../skill/energy-efficiency-analysis/SKILL.md) | [`.skill`](per-skill/skill/energy-efficiency-analysis.skill) / [`.zip`](per-skill/zip/energy-efficiency-analysis.zip) | [`energy-efficiency-analysis.md`](upload-md/energy-efficiency-analysis.md) |
| `failure-root-cause-analysis` | Root cause analysis for field or test failures in mechanical systems. | [`failure-root-cause-analysis/SKILL.md`](../skill/failure-root-cause-analysis/SKILL.md) | [`.skill`](per-skill/skill/failure-root-cause-analysis.skill) / [`.zip`](per-skill/zip/failure-root-cause-analysis.zip) | [`failure-root-cause-analysis.md`](upload-md/failure-root-cause-analysis.md) |
| `fatigue-fracture-analysis` | Fatigue life and fracture risk assessment for cyclic loading. | [`fatigue-fracture-analysis/SKILL.md`](../skill/fatigue-fracture-analysis/SKILL.md) | [`.skill`](per-skill/skill/fatigue-fracture-analysis.skill) / [`.zip`](per-skill/zip/fatigue-fracture-analysis.zip) | [`fatigue-fracture-analysis.md`](upload-md/fatigue-fracture-analysis.md) |
| `fea-cfd-review` | Critical review of FEA/CFD models and simulation credibility. | [`fea-cfd-review/SKILL.md`](../skill/fea-cfd-review/SKILL.md) | [`.skill`](per-skill/skill/fea-cfd-review.skill) / [`.zip`](per-skill/zip/fea-cfd-review.zip) | [`fea-cfd-review.md`](upload-md/fea-cfd-review.md) |
| `fluid-analysis` | Internal and external fluid flow analysis for engineering systems. | [`fluid-analysis/SKILL.md`](../skill/fluid-analysis/SKILL.md) | [`.skill`](per-skill/skill/fluid-analysis.skill) / [`.zip`](per-skill/zip/fluid-analysis.zip) | [`fluid-analysis.md`](upload-md/fluid-analysis.md) |
| `gear-design` | Gear train design and verification for power transmission. | [`gear-design/SKILL.md`](../skill/gear-design/SKILL.md) | [`.skill`](per-skill/skill/gear-design.skill) / [`.zip`](per-skill/zip/gear-design.zip) | [`gear-design.md`](upload-md/gear-design.md) |
| `heat-treatment` | Heat-treatment strategy for steels and alloys in mechanical design. | [`heat-treatment/SKILL.md`](../skill/heat-treatment/SKILL.md) | [`.skill`](per-skill/skill/heat-treatment.skill) / [`.zip`](per-skill/zip/heat-treatment.zip) | [`heat-treatment.md`](upload-md/heat-treatment.md) |
| `joints-design` | Joint design for bolts, welds, adhesives, and hybrid joints. | [`joints-design/SKILL.md`](../skill/joints-design/SKILL.md) | [`.skill`](per-skill/skill/joints-design.skill) / [`.zip`](per-skill/zip/joints-design.zip) | [`joints-design.md`](upload-md/joints-design.md) |
| `machine-elements-selection` | Integrated selection of machine elements for a mechanism or subsystem. | [`machine-elements-selection/SKILL.md`](../skill/machine-elements-selection/SKILL.md) | [`.skill`](per-skill/skill/machine-elements-selection.skill) / [`.zip`](per-skill/zip/machine-elements-selection.zip) | [`machine-elements-selection.md`](upload-md/machine-elements-selection.md) |
| `material-failure-modes` | Material failure mode identification and prevention. | [`material-failure-modes/SKILL.md`](../skill/material-failure-modes/SKILL.md) | [`.skill`](per-skill/skill/material-failure-modes.skill) / [`.zip`](per-skill/zip/material-failure-modes.zip) | [`material-failure-modes.md`](upload-md/material-failure-modes.md) |
| `materials-metallurgy` | Materials engineering and metallurgy guidance for design decisions. | [`materials-metallurgy/SKILL.md`](../skill/materials-metallurgy/SKILL.md) | [`.skill`](per-skill/skill/materials-metallurgy.skill) / [`.zip`](per-skill/zip/materials-metallurgy.zip) | [`materials-metallurgy.md`](upload-md/materials-metallurgy.md) |
| `mechanical-orchestrator` | Cross-domain mechanical engineering orchestration for complex design questions. | [`mechanical-orchestrator/SKILL.md`](../skill/mechanical-orchestrator/SKILL.md) | [`.skill`](per-skill/skill/mechanical-orchestrator.skill) / [`.zip`](per-skill/zip/mechanical-orchestrator.zip) | [`mechanical-orchestrator.md`](upload-md/mechanical-orchestrator.md) |
| `modal-analysis` | Modal behavior assessment for structures and assemblies. | [`modal-analysis/SKILL.md`](../skill/modal-analysis/SKILL.md) | [`.skill`](per-skill/skill/modal-analysis.skill) / [`.zip`](per-skill/zip/modal-analysis.zip) | [`modal-analysis.md`](upload-md/modal-analysis.md) |
| `pressure-loss-pump-piping` | Hydraulic network design including pressure losses, pumps, and piping. | [`pressure-loss-pump-piping/SKILL.md`](../skill/pressure-loss-pump-piping/SKILL.md) | [`.skill`](per-skill/skill/pressure-loss-pump-piping.skill) / [`.zip`](per-skill/zip/pressure-loss-pump-piping.zip) | [`pressure-loss-pump-piping.md`](upload-md/pressure-loss-pump-piping.md) |
| `process-selection` | Manufacturing process selection across machining, forming, casting, additive, and joining. | [`process-selection/SKILL.md`](../skill/process-selection/SKILL.md) | [`.skill`](per-skill/skill/process-selection.skill) / [`.zip`](per-skill/zip/process-selection.zip) | [`process-selection.md`](upload-md/process-selection.md) |
| `quality-metrology-plan` | Quality control and metrology planning for mechanical parts and assemblies. | [`quality-metrology-plan/SKILL.md`](../skill/quality-metrology-plan/SKILL.md) | [`.skill`](per-skill/skill/quality-metrology-plan.skill) / [`.zip`](per-skill/zip/quality-metrology-plan.zip) | [`quality-metrology-plan.md`](upload-md/quality-metrology-plan.md) |
| `reliability-analysis` | Reliability engineering for mechanical products and systems. | [`reliability-analysis/SKILL.md`](../skill/reliability-analysis/SKILL.md) | [`.skill`](per-skill/skill/reliability-analysis.skill) / [`.zip`](per-skill/zip/reliability-analysis.zip) | [`reliability-analysis.md`](upload-md/reliability-analysis.md) |
| `shafts-couplings-design` | Shaft and coupling design for torque and alignment demands. | [`shafts-couplings-design/SKILL.md`](../skill/shafts-couplings-design/SKILL.md) | [`.skill`](per-skill/skill/shafts-couplings-design.skill) / [`.zip`](per-skill/zip/shafts-couplings-design.zip) | [`shafts-couplings-design.md`](upload-md/shafts-couplings-design.md) |
| `should-cost-estimation` | Should-cost and cost-driver analysis for mechanical components. | [`should-cost-estimation/SKILL.md`](../skill/should-cost-estimation/SKILL.md) | [`.skill`](per-skill/skill/should-cost-estimation.skill) / [`.zip`](per-skill/zip/should-cost-estimation.zip) | [`should-cost-estimation.md`](upload-md/should-cost-estimation.md) |
| `spring-design` | Spring design for force-deflection and life requirements. | [`spring-design/SKILL.md`](../skill/spring-design/SKILL.md) | [`.skill`](per-skill/skill/spring-design.skill) / [`.zip`](per-skill/zip/spring-design.zip) | [`spring-design.md`](upload-md/spring-design.md) |
| `standards-compliance-check` | Engineering standards and compliance guidance for mechanical products. | [`standards-compliance-check/SKILL.md`](../skill/standards-compliance-check/SKILL.md) | [`.skill`](per-skill/skill/standards-compliance-check.skill) / [`.zip`](per-skill/zip/standards-compliance-check.zip) | [`standards-compliance-check.md`](upload-md/standards-compliance-check.md) |
| `structural-analysis` | Solid mechanics analysis for parts and assemblies under static loads. | [`structural-analysis/SKILL.md`](../skill/structural-analysis/SKILL.md) | [`.skill`](per-skill/skill/structural-analysis.skill) / [`.zip`](per-skill/zip/structural-analysis.zip) | [`structural-analysis.md`](upload-md/structural-analysis.md) |
| `technical-report` | Technical report writing for mechanical engineering deliverables. | [`technical-report/SKILL.md`](../skill/technical-report/SKILL.md) | [`.skill`](per-skill/skill/technical-report.skill) / [`.zip`](per-skill/zip/technical-report.zip) | [`technical-report.md`](upload-md/technical-report.md) |
| `test-plan-validation` | Test planning and validation strategy for mechanical design verification. | [`test-plan-validation/SKILL.md`](../skill/test-plan-validation/SKILL.md) | [`.skill`](per-skill/skill/test-plan-validation.skill) / [`.zip`](per-skill/zip/test-plan-validation.zip) | [`test-plan-validation.md`](upload-md/test-plan-validation.md) |
| `thermal-analysis` | Thermal behavior analysis for mechanical systems. | [`thermal-analysis/SKILL.md`](../skill/thermal-analysis/SKILL.md) | [`.skill`](per-skill/skill/thermal-analysis.skill) / [`.zip`](per-skill/zip/thermal-analysis.zip) | [`thermal-analysis.md`](upload-md/thermal-analysis.md) |
| `thermal-expansion-stress` | Thermal expansion mismatch and thermal stress assessment. | [`thermal-expansion-stress/SKILL.md`](../skill/thermal-expansion-stress/SKILL.md) | [`.skill`](per-skill/skill/thermal-expansion-stress.skill) / [`.zip`](per-skill/zip/thermal-expansion-stress.zip) | [`thermal-expansion-stress.md`](upload-md/thermal-expansion-stress.md) |
| `tolerance-gdt-fits` | Tolerance stack-up, GD&T, and fit selection for assemblies. | [`tolerance-gdt-fits/SKILL.md`](../skill/tolerance-gdt-fits/SKILL.md) | [`.skill`](per-skill/skill/tolerance-gdt-fits.skill) / [`.zip`](per-skill/zip/tolerance-gdt-fits.zip) | [`tolerance-gdt-fits.md`](upload-md/tolerance-gdt-fits.md) |
| `tribology-lubrication` | Tribology and lubrication engineering for moving interfaces. | [`tribology-lubrication/SKILL.md`](../skill/tribology-lubrication/SKILL.md) | [`.skill`](per-skill/skill/tribology-lubrication.skill) / [`.zip`](per-skill/zip/tribology-lubrication.zip) | [`tribology-lubrication.md`](upload-md/tribology-lubrication.md) |

## Validation Checks
- [x] package count check: expected 68, found 68
- [x] bearings-seals-selection.skill: OK
- [x] bearings-seals-selection.zip: OK
- [x] calculation-report.skill: OK
- [x] calculation-report.zip: OK
- [x] cnc-sheet-casting-forging.skill: OK
- [x] cnc-sheet-casting-forging.zip: OK
- [x] bundle contains all valid skill directories

## Warnings

- None

## Skipped

- None

## Output Paths

- [`package/per-skill/`](per-skill/)
- [`package/per-skill/skill/`](per-skill/skill/)
- [`package/per-skill/zip/`](per-skill/zip/)
- [`package/bundles/`](bundles/)
- [`package/upload-md/`](upload-md/)