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structural-analysis
Perform structural analysis including stress calculations, buckling checks, and capacity verification per DNV, API, and ISO standards. Covers Von Mises stress, plate buckling, member capacity, and safety factor reporting.
orcaflex-environment-config
Configure OrcaFlex environmental conditions including wave spectra (JONSWAP, Dean Stream), current profiles, wind loading, and seabed properties for offshore analysis.
viv-analysis
Assess vortex-induced vibration (VIV) for risers and tubular members with natural frequency and safety factor calculations. Use for VIV susceptibility analysis, natural frequency calculation, vortex shedding assessment, and tubular member fatigue from VIV.
design-qa
Reviews finished and in-progress digital products to assess adherence to design specifications and discover potential issues with those specifications. Validates implementation against design intent, identifies visual and interaction discrepancies, and provides actionable feedback for design and engineering teams.
catenary-riser
Analyze catenary and lazy wave riser configurations for static shape, forces, and OrcaFlex model generation. Use for riser static configuration analysis, catenary force calculations, lazy wave design, and generating OrcaFlex models from catenary parameters.
fatigue-analysis
Perform fatigue analysis using S-N curves and damage accumulation methods. Supports 221 S-N curves from 17 international standards (DNV, API, BS, ABS, etc.) for marine and offshore structural components.
time-tracking
Time tracking integration patterns with RescueTime and Toggl APIs for automated time entry, reporting, analytics, and project/task attribution
signal-analysis
Perform signal processing, rainflow cycle counting, and spectral analysis for fatigue and time series data. Use for analyzing stress time histories, computing FFT/PSD, extracting fatigue cycles (ASTM E1049-85), and batch processing OrcaFlex signals.
orcaflex-line-wizard
Configure OrcaFlex line properties and use the Line Setup Wizard for automatic tension/length calculations. Use for mooring line configuration, riser setup, and achieving target line properties.
orcaflex-file-conversion
Convert OrcaFlex files between formats (.dat, .yml, .sim) for digital analysis and automation. Supports bidirectional conversion, batch processing, and format standardization.
issue-management
Use this skill when the user wants to "create issue", "update issue", "add labels", "assign issue", "close issue", "link issues", or manage GitHub issue metadata. Provides comprehensive GitHub issue CRUD operations with intelligent context awareness.
cost-optimization-gha
GitHub Actions の実行コストを最適化するためのスキル。 コスト計測、削減施策の設計、実装、継続的な監視を一連で扱う。 Anchors: • High Performance Browser Networking / 適用: 計測から改善する姿勢 / 目的: 速度とコストの可視化 • Designing Data-Intensive Applications / 適用: 制約下の設計判断 / 目的: ランナー/ストレージの効率化 • Continuous Delivery / 適用: 改善の反復 / 目的: 継続的最適化のサイクル化 Trigger: Use when optimizing GitHub Actions workflow execution time, reducing runner costs, managing billing, or optimizing artifact storage and cache usage. github actions cost optimization, runner costs, workflow budget, artifact storage, caching strategy
pr-workflow
Use this skill when the user wants to "create PR", "update PR", "merge PR", "PR template", "auto-fill PR", "request review", or manage pull request lifecycle. Generates PR descriptions from commits/issues with intelligent defaults.
subissue-orchestration
Use this skill when the user wants to "create subissue", "break down issue", "split into tasks", "track subtasks", or manage hierarchical GitHub issues. Creates subissues with parent linking using GitHub's native sub-issues API (with markdown fallback).
orcaflex-post-processing
Post-process OrcaFlex simulation results using OPP (OrcaFlex Post-Process). Use for extracting summary statistics, linked statistics, range graphs, time series, histograms, and generating interactive HTML reports from .sim files.
commit-message-helper
Helps write Git commit messages following the Conventional Commits specification. Use this skill when the user asks to commit changes, write commit messages, or mentions git commits.
python-pptx
Create and manipulate PowerPoint presentations programmatically. Build slide decks with layouts, shapes, charts, tables, and images. Generate data-driven presentations from templates.
ghe-claim
CLAIM a specific GitHub issue to START working on it. Requires an issue number. Performs validation, atomic claim, posts claim comment, and sets up worktree. USE THIS SKILL WHEN: - User says "claim issue #N" or "claim #N" - User says "start working on issue #N" or "take issue #N" - User says "I'll work on #N" or "pick up #N" - User wants to BEGIN work on a specific issue number - User selected an issue from available work and wants to claim it REQUIRED: An issue number must be specified or identifiable from context. DO NOT USE THIS SKILL WHEN: - User just wants to SEE status (use ghe-status) - User is ALREADY working and wants to post update (use ghe-checkpoint) - User wants to CHANGE phases (use ghe-transition) - User wants reports (use ghe-report) - No specific issue number is mentioned EXAMPLES: <example> Context: User wants to start work on a specific issue user: "Claim issue #201" assistant: "I'll use ghe-claim to claim issue #201 with the full protocol" </example> <example> Context: User picks from
