Agent Skills (SKILL.md) by OverKill Hill for Claude, OpenClaw, and Codex. BPMN-aware Mermaid diagramming, a LinkedIn voice-to-post pipeline, and process-capture meta-skills for turning recurring work into reusable agent skills. Gotta have the skillz to pay the bills.
This repository also configures its own agents. See what skillz tells them →
Skill Claude CodeCodex
Migration and code evolution instructions generator for GitHub Copilot. Analyzes differences between two project versions (branches, commits, or releases) to create precise instructions allowing Copilot to maintain consistency during technology migrations, major refactoring, or framework version upgrades.
Skill Claude CodeCodex
Pre-breach impact analysis: inventories sensitive data (PII, PHI, PCI-DSS, credentials), traces data flows, scores exposure vectors, and produces a regulatory blast radius report with fine ranges sourced verbatim from GDPR Art. 83, CCPA § 1798.155(a), and HIPAA 45 CFR § 160.404. Cost benchmarks from IBM Cost of a Data…
Skill Claude CodeCodex
Operational data migration guidance. Use when moving or transforming persisted data between schemas, databases, services, or storage technologies; running large backfills; applying expand-and-contract schema changes; combining snapshots with live CDC/events; designing resumable batches and checkpoints; reconciling…
Skill Claude CodeCodex
Changes a schema or moves data in production without downtime or loss — column changes, backfills, table splits, and system-to-system moves. Use this whenever the user is writing a migration, altering a table, backfilling data, renaming a column, or moving data between systems. Treat it as required reading before any…
Skill Claude CodeCodex
Domain-Driven Design guidance for modeling complex domains. Use when designing Bounded Contexts or Subdomains, discovering Aggregate boundaries from invariants and transactions, defining Aggregate Roots, designing Domain Events, typed domain failures, or repository contracts, choosing exception vs Result/Either/Option…
Skill Claude CodeCodex
Assesses what a project depends on — known vulnerabilities, licence obligations, abandoned packages, and supply chain risk. Use this whenever the user asks what their dependencies look like, mentions a CVE or security advisory, needs a licence review, is evaluating whether to adopt a library, or has a dependency tree…
Skill Claude CodeCodex
Gets a change into production safely — blue-green, canary, rolling, feature flags, and the rollback that makes each of them safe. Use this whenever the user is planning a release, asks how to deploy without downtime, mentions canary or blue-green, is adding a feature flag, or is nervous about a risky change going out.…
Skill Claude CodeCodex
Generate comprehensive rollout plans with preflight checks, step-by-step deployment, verification signals, rollback procedures, and communication plans for infrastructure and application changes.
Skill Claude CodeCodex
Draws architecture and flow diagrams as code — Mermaid, C4, sequence, ER, and state diagrams that stay in version control and do not go stale. Use this whenever the user asks for a diagram, wants to visualise an architecture or flow, mentions Mermaid or C4, or is explaining a system that would be clearer drawn. For…
Skill Claude CodeCodex
Two related workflows for a locally-cloned codebase, in one skill. Documentation mode produces a single, comprehensive, verifiable architecture document primarily by reading files on disk (local-first) — use it whenever the user wants to understand, map, document, research, or onboard onto a codebase ("research this…
Skill Claude CodeCodex
Diátaxis Documentation Expert. An expert technical writer specializing in creating high-quality software documentation, guided by the principles and structure of the Diátaxis technical documentation authoring framework.
Skill Claude CodeCodex
Ensure .NET/C# code meets best practices for the solution/project.
Skill Claude CodeCodex
Review the C#/.NET code for design pattern implementation and suggest improvements.
Skill Claude CodeCodex
Ready-to-use prompts for comprehensive .NET framework upgrade analysis and execution.
Skill Claude CodeCodex
Get best practices for Entity Framework Core.
Skill Claude CodeCodex
Generate D2 database diagrams from Entity Framework Core models. USE FOR: EF Core database diagram, Entity Framework Core ERD, DbContext diagram, C# entity relationship diagram, PostgreSQL schema visualization, generate .d2 file from EF Core entities, Fluent API mapping diagram, migrations-based database diagram…
Skill Claude CodeCodex
Helps agents discover, evaluate, and recommend installable agent skills when a task may be better handled by a specialized skill. Use when users ask how to do a specialized task, whether a skill exists, or how to extend agent capabilities.
Skill Claude CodeCodex
Comprehensive technology-agnostic prompt for analyzing and documenting project folder structures. Auto-detects project types (.NET, Java, React, Angular, Python, Node.js, Flutter), generates detailed blueprints with visualization options, naming conventions, file placement patterns, and extension templates for…
Skill Claude CodeCodex
Use when an outage, production incident, or significant service degradation has occurred and the team needs to write a structured blameless post-mortem. Triggers on phrases like "write a post-mortem", "incident review", "what went wrong", "outage report", "root cause analysis", or "RCA". Covers timeline…
Skill Claude CodeCodex
Tests that components work together — service against real database, API against real dependencies, module against module. Use this whenever the user mentions integration tests, testing against a real database or queue, contract testing between services, or has unit tests passing while the system is still broken. For…
Skill Claude CodeCodex
Measures how a system behaves under load and finds where it breaks — throughput ceilings, latency under concurrency, and failure modes at saturation. Use this whenever the user mentions load testing, stress testing, benchmarking, capacity planning, an upcoming traffic spike, or asks how many users the system can…
Skill Claude CodeCodex
Extracts an answer from logs, traces, or metrics — finding the relevant lines in volume, correlating across services, and telling signal from noise. Use this whenever the user points at a log file, asks what happened at a particular time, mentions grepping logs, wants to know how often something occurs, or is trying…
Skill Claude Code
Enumerate exported symbols in a file and surface those with zero references across the workspace. Use when auditing for dead code, cleaning up APIs, or checking which exports are safe to remove.
Skill Claude Code
End-to-end safe refactor workflow — blast-radius analysis, speculative preview, apply to disk, verify build, run affected tests. Inlines lsp-impact + lsp-safe-edit + lsp-verify + lsp-test-correlation into one coordinated sequence.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: