Agent skill
dotnet-reportgenerator
Use the open-source free `ReportGenerator` tool for turning .NET coverage outputs into HTML, Markdown, Cobertura, badges, and merged reports. Use when raw coverage files are not readable enough for CI or human review.
Install this agent skill to your Project
npx add-skill https://github.com/managedcode/dotnet-skills/tree/main/catalog/Tools/ReportGenerator/skills/dotnet-reportgenerator
SKILL.md
ReportGenerator for .NET
Trigger On
- the repo uses or wants
ReportGenerator - CI needs human-readable coverage reports
- multiple coverage files must be merged
Value
- produce a concrete project delta: code, docs, config, tests, CI, or review artifact
- reduce ambiguity through explicit planning, verification, and final validation skills
- leave reusable project context so future tasks are faster and safer
Do Not Use For
- raw coverage collection with no reporting need
Inputs
- the nearest
AGENTS.md - existing coverage artifacts
- desired output formats
Quick Start
- Read the nearest
AGENTS.mdand confirm scope and constraints. - Run this skill's
Workflowthrough theRalph Loopuntil outcomes are acceptable. - Return the
Required Result Formatwith concrete artifacts and verification evidence.
Workflow
- Keep collection and rendering separate: Coverlet collects, ReportGenerator renders.
- Prefer the local or manifest-based .NET tool for reproducible CI runs.
- Choose output formats deliberately:
HtmlSummaryCoberturaMarkdownSummaryGithub- badges
- Merge multiple reports only when the repo really needs a consolidated view.
Bootstrap When Missing
If ReportGenerator is not configured yet:
- Detect current state:
rg --files -g '.config/dotnet-tools.json'dotnet tool list --localdotnet tool list --globalcommand -v reportgenerator
- Prefer local tool installation for reproducible CI:
dotnet new tool-manifest(if missing)dotnet tool install dotnet-reportgenerator-globaltool
- Add one explicit render command to
AGENTS.mdand CI, for example:dotnet tool run reportgenerator -reports:"**/coverage.cobertura.xml" -targetdir:"artifacts/coverage" -reporttypes:"HtmlSummary;Cobertura"
- Run the report command once and return
status: configuredorstatus: improved. - If raw coverage outputs are already sufficient and no rendered artifacts are needed, return
status: not_applicable.
Deliver
- readable coverage artifacts for humans and CI systems
- explicit report-generation commands
Validate
- report inputs match the generated coverage format
- generated reports land in a stable artifact path
Ralph Loop
Use the Ralph Loop for every task, including docs, architecture, testing, and tooling work.
- Plan first (mandatory):
- analyze current state
- define target outcome, constraints, and risks
- write a detailed execution plan
- list final validation skills to run at the end, with order and reason
- Execute one planned step and produce a concrete delta.
- Review the result and capture findings with actionable next fixes.
- Apply fixes in small batches and rerun the relevant checks or review steps.
- Update the plan after each iteration.
- Repeat until outcomes are acceptable or only explicit exceptions remain.
- If a dependency is missing, bootstrap it or return
status: not_applicablewith explicit reason and fallback path.
Required Result Format
status:complete|clean|improved|configured|not_applicable|blockedplan: concise plan and current iteration stepactions_taken: concrete changes madevalidation_skills: final skills run, or skipped with reasonsverification: commands, checks, or review evidence summaryremaining: top unresolved items ornone
For setup-only requests with no execution, return status: configured and exact next commands.
Load References
references/reportgenerator.mdreferences/commands.mdreferences/formats.md
Example Requests
- "Render coverage as HTML in CI."
- "Merge multiple Coverlet reports."
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