Add test-gap-audit and docs-sync-audit skills

.codespellrc

@@ -78,7 +78,11 @@
 
 # evaulated - verbatim inside a quotation from the Dev Container Features specification in devcontainers.instructions.md, which spells it that way
 
-ignore-words-list = numer,wit,aks,edn,ser,ois,gir,rouge,categor,aline,ative,afterall,deques,dateA,dateB,TE,FillIn,alle,vai,LOD,InOut,INOUT,pixelX,aNULL,Wee,Sherif,queston,extenions,Vertexes,nin,FO,CAF,Parth,ans,gud,Vally,vally,checkin,ACI,soruce,straightaway,crystalize,implementors,evaulated
+# testng/TestNG - the Java test framework, detected by name in skills/test-gap-audit/scripts/coverage_map.py
+
+# shouldBe - Kotlin/Scala assertion method name matched by the assertion-detection regex in the same script
+
+ignore-words-list = numer,wit,aks,edn,ser,ois,gir,rouge,categor,aline,ative,afterall,deques,dateA,dateB,TE,FillIn,alle,vai,LOD,InOut,INOUT,pixelX,aNULL,Wee,Sherif,queston,extenions,Vertexes,nin,FO,CAF,Parth,ans,gud,Vally,vally,checkin,ACI,soruce,straightaway,crystalize,implementors,evaulated,testng,shouldbe
 
 # Skip certain files and directories
 

docs/README.skills.md

@@ -163,6 +163,7 @@ See [CONTRIBUTING.md](../CONTRIBUTING.md#adding-skills) for guidelines on how to
 | [devops-rollout-plan](../skills/devops-rollout-plan/SKILL.md)<br />`gh skills install github/awesome-copilot devops-rollout-plan` | Generate comprehensive rollout plans with preflight checks, step-by-step deployment, verification signals, rollback procedures, and communication plans for infrastructure and application changes | None |
 | [diagnose](../skills/diagnose/SKILL.md)<br />`gh skills install github/awesome-copilot diagnose` | Perform a systematic diagnostic scan of an AI workflow across 5 quality dimensions — prompt quality, context efficiency, tool health, architecture fitness, and safety — producing a scored report with prioritized remediation actions. | None |
 | [doc-and-modernize](../skills/doc-and-modernize/SKILL.md)<br />`gh skills install github/awesome-copilot doc-and-modernize` | 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 repo", "write up the architecture", "do an architecture deep dive", "document how this codebase works", "map the system design", "create an onboarding doc"). Modernization mode generates a phased plan to modernize, migrate, upgrade, or rewrite a legacy system ("modernize this", "plan the migration", "how would we rewrite this", "how do we get off this legacy stack"); if no architecture document exists yet it first runs Documentation mode, then continues straight through to the plan. It assumes the legacy stack may be dead, runs a time-boxed feasibility spike, and picks the highest achievable rung on a safety ladder instead of demanding a fully-green legacy CI gate up front. | `references/copilot-instructions.template.md`<br />`references/migration-hazards.md` |
+| [docs-sync-audit](../skills/docs-sync-audit/SKILL.md)<br />`gh skills install github/awesome-copilot docs-sync-audit` | Run a read-only documentation drift audit for a feature, PR, branch, release, API, configuration change, workflow, CLI, package, or repository area. Use when the user asks whether docs are stale, missing, inconsistent with code, or need updates after code changes. Checks README files, setup guides, API docs, env docs, changelogs, examples, comments, generated docs, and user-facing instructions. This is not a general code review; it compares what the docs claim against what the code does. | `scripts/docs_drift.py` |
 | [documentation-writer](../skills/documentation-writer/SKILL.md)<br />`gh skills install github/awesome-copilot documentation-writer` | 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. | None |
 | [dotnet-best-practices](../skills/dotnet-best-practices/SKILL.md)<br />`gh skills install github/awesome-copilot dotnet-best-practices` | Ensure .NET/C# code meets best practices for the solution/project. | None |
 | [dotnet-design-pattern-review](../skills/dotnet-design-pattern-review/SKILL.md)<br />`gh skills install github/awesome-copilot dotnet-design-pattern-review` | Review the C#/.NET code for design pattern implementation and suggest improvements. | None |
@@ -410,6 +411,7 @@ See [CONTRIBUTING.md](../CONTRIBUTING.md#adding-skills) for guidelines on how to
 | [technical-job-search](../skills/technical-job-search/SKILL.md)<br />`gh skills install github/awesome-copilot technical-job-search` | Use this skill when a software engineer asks for help with job search tasks: parsing or analyzing a job description, tailoring a CV/resume, writing a cover letter, evaluating a job offer, or drafting a post-interview follow-up email. Do not activate for general career advice unrelated to an active job search action. | None |
 | [technology-stack-blueprint-generator](../skills/technology-stack-blueprint-generator/SKILL.md)<br />`gh skills install github/awesome-copilot technology-stack-blueprint-generator` | Comprehensive technology stack blueprint generator that analyzes codebases to create detailed architectural documentation. Automatically detects technology stacks, programming languages, and implementation patterns across multiple platforms (.NET, Java, JavaScript, React, Python). Generates configurable blueprints with version information, licensing details, usage patterns, coding conventions, and visual diagrams. Provides implementation-ready templates and maintains architectural consistency for guided development. | None |
 | [terraform-azurerm-set-diff-analyzer](../skills/terraform-azurerm-set-diff-analyzer/SKILL.md)<br />`gh skills install github/awesome-copilot terraform-azurerm-set-diff-analyzer` | Analyze Terraform plan JSON output for AzureRM Provider to distinguish between false-positive diffs (order-only changes in Set-type attributes) and actual resource changes. Use when reviewing terraform plan output for Azure resources like Application Gateway, Load Balancer, Firewall, Front Door, NSG, and other resources with Set-type attributes that cause spurious diffs due to internal ordering changes. | `references/azurerm_set_attributes.json`<br />`references/azurerm_set_attributes.md`<br />`scripts/.gitignore`<br />`scripts/README.md`<br />`scripts/analyze_plan.py` |
+| [test-gap-audit](../skills/test-gap-audit/SKILL.md)<br />`gh skills install github/awesome-copilot test-gap-audit` | Run a read-only audit for missing, weak, stale, or mis-scoped test coverage. If the user does not name a scope, audit the full repository and identify important code paths, routes, features, services, workflows, and contracts that lack proper tests. If the user names a feature, PR, branch, route, workflow, service, bug fix, API, security-sensitive path, or risky code change, focus only on that specific scope. Use when the user asks what tests are missing, whether coverage is enough, what regression tests to add, or how to prove a change is safe. This is not a general bug audit and not a security review; it evaluates whether behavior is covered by tests. | `scripts/coverage_map.py` |
 | [threat-model-analyst](../skills/threat-model-analyst/SKILL.md)<br />`gh skills install github/awesome-copilot threat-model-analyst` | Full STRIDE-A threat model analysis and incremental update skill for repositories and systems. Supports two modes: (1) Single analysis — full STRIDE-A threat model of a repository, producing architecture overviews, DFD diagrams, STRIDE-A analysis, prioritized findings, and executive assessments. (2) Incremental analysis — takes a previous threat model report as baseline, compares the codebase at the latest (or a given commit), and produces an updated report with change tracking (new, resolved, still-present threats), STRIDE heatmap, findings diff, and an embedded HTML comparison. Only activate when the user explicitly requests a threat model analysis, incremental update, or invokes /threat-model-analyst directly. | `references/analysis-principles.md`<br />`references/diagram-conventions.md`<br />`references/incremental-orchestrator.md`<br />`references/orchestrator.md`<br />`references/output-formats.md`<br />`references/skeletons/skeleton-architecture.md`<br />`references/skeletons/skeleton-assessment.md`<br />`references/skeletons/skeleton-dfd.md`<br />`references/skeletons/skeleton-findings.md`<br />`references/skeletons/skeleton-incremental-html.md`<br />`references/skeletons/skeleton-inventory.md`<br />`references/skeletons/skeleton-stride-analysis.md`<br />`references/skeletons/skeleton-summary-dfd.md`<br />`references/skeletons/skeleton-threatmodel.md`<br />`references/tmt-element-taxonomy.md`<br />`references/verification-checklist.md` |
 | [tiny-stepping](../skills/tiny-stepping/SKILL.md)<br />`gh skills install github/awesome-copilot tiny-stepping` | Incremental development workflow that makes the smallest meaningful change per step and pauses for feedback, so the direction gets validated early before continuing. Use for careful, iterative implementation with continuous validation. | None |
 | [tldr-prompt](../skills/tldr-prompt/SKILL.md)<br />`gh skills install github/awesome-copilot tldr-prompt` | Create tldr summaries for GitHub Copilot files (prompts, agents, instructions, collections), MCP servers, or documentation from URLs and queries. | None |