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Agent skill

Corvus Test Suite Regeneration

by corvus-dotnet in corvus-dotnet/Corvus.JsonSchema

Regenerate JSON Schema test classes from the JSON-Schema-Test-Suite git submodule.

Apache-2.0Auto-check passedTesting & QA

Install Corvus Test Suite Regeneration

skills CLI
$ npx skills add corvus-dotnet/Corvus.JsonSchema --skill corvus-test-suite-regeneration -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install corvus-dotnet/Corvus.JsonSchema corvus-test-suite-regeneration --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/corvus-dotnet/Corvus.JsonSchema.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/corvus-test-suite-regeneration .claude/skills/corvus-test-suite-regeneration && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
corvus-test-suite-regeneration
GitHub stars
200
Token cost
~866 tokens
SKILL.md length
273 words
Files
1
Skills in repo
28
Repo updated
First seen
Licence
Apache-2.0

At a glance

Regenerate JSON Schema test classes from the JSON-Schema-Test-Suite git submodule.

  • Works in 2 steps: Updates the JSON-Schema-Test-Suite git… → Regenerates V5 test classes (3 output…
  • : updating the test suite submodule
  • SKILL.md covers Master Script, V5 Test Generator, V4 Tests and Critical Rules, plus 2 more sections
  • Calls dotnet

What it does

Corvus Test Suite Regeneration is an agent skill from corvus-dotnet/Corvus.JsonSchema. Regenerate JSON Schema test classes from the JSON-Schema-Test-Suite git submodule. Covers the update-json-schema-test-suite.ps1 master script, the V5 test generator (Corvus.JsonSchemaTestSuite.CodeGenerator), exclusion configuration, and output directory structure. USE FOR: updating the test suite submodule, regenerating test classes after submodule or generator changes, understanding the test infrastructure. DO NOT USE FOR: running existing tests (use corvus-build-and-test), writing manual tests.

Its SKILL.md is about 870 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Test generation. It works with Git. The repository describes itself as: Support for Json Schema validation and entity generation. The licence is Apache-2.0.

When your agent uses it

  • : updating the test suite submodule
  • Regenerating test classes after submodule
  • Generator changes
  • Understanding the test infrastructure

Example prompts

  • “/corvus-test-suite-regeneration”

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

  1. Updates the JSON-Schema-Test-Suite git submodule
  2. Regenerates V5 test classes (3 output directories)

What it can do on your machine

Read from SKILL.md and the folder at commit ca269a3. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • dotnet

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Corvus Test Suite Regeneration loads about 866 tokens when it runs. Until then it costs about 133 tokens; SKILL.md has 273 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~133
When it runs · the whole SKILL.md, loaded when a task matches
~866

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from corvus-dotnet/Corvus.JsonSchema at commit ca269a3, republished under its Apache-2.0 licence (© corvus-dotnet). 273 words, ~866 tokens.

Download SKILL.mdSave it as .claude/skills/corvus-test-suite-regeneration/SKILL.md (or your agent's skills folder).
name
corvus-test-suite-regeneration
description
Regenerate JSON Schema test classes from the JSON-Schema-Test-Suite git submodule. Covers the update-json-schema-test-suite.ps1 master script, the V5 test generator (Corvus.JsonSchemaTestSuite.CodeGenerator), exclusion configuration, and output directory structure. USE FOR: updating the test suite submodule, regenerating test classes after submodule or generator changes, understanding the test infrastructure. DO NOT USE FOR: running existing tests (use corvus-build-and-test), writing manual tests.

Test Suite Regeneration

Master Script

powershell
.\update-json-schema-test-suite.ps1

This handles the full workflow:

  1. Updates the JSON-Schema-Test-Suite git submodule
  2. Regenerates V5 test classes (3 output directories)

V5 Test Generator

The Corvus.JsonSchemaTestSuite.CodeGenerator project generates test classes for 3 suites, output into two test projects:

Output subdirectoryPurpose
tests/Corvus.Text.Json.SchemaTestSuite.Tests/JsonSchemaTestSuite/Full type-based validation tests
tests/Corvus.Text.Json.EvaluatorTestSuite.Tests/StandaloneEvaluatorTestSuite/Evaluator-only tests
tests/Corvus.Text.Json.EvaluatorTestSuite.Tests/AnnotationTestSuite/Annotation collection tests

The output paths are configured in the generator's appsettings.json (outputPath, evaluatorOutputPath, annotationOutputPath). The emitted fixtures are OS-independent (embedded paths use /, embedded JSON uses LF), so regeneration is byte-stable across operating systems.

CRITICAL: The V5 generator must be run from its bin/ directory, not via dotnet run, because appsettings.json uses relative paths that resolve from the working directory.

powershell
# Build the generator
dotnet build tests\Corvus.JsonSchemaTestSuite.CodeGenerator -c Release

# Run from bin directory (use `dotnet <dll>` so it works on every OS;
# the apphost is `.exe` on Windows only)
Push-Location tests\Corvus.JsonSchemaTestSuite.CodeGenerator\bin\Release\net10.0
dotnet .\Corvus.JsonSchemaTestSuite.CodeGenerator.dll > $null
Pop-Location

Redirect stdout to $null to avoid PowerShell buffer overflow.

V4 Tests

V4 schema validation tests are in tests-v4/Corvus.Json.Specs.Tests/ as MSTest tests. These test V4 types (Corvus.Json.ExtendedTypes, Corvus.Json.CodeGeneration.CSharp) using runtime Roslyn compilation via JsonSchemaBuilderDriver. The test classes were generated from the same JSON-Schema-Test-Suite data and cover all drafts (4, 6, 7, 2019-09, 2020-12) plus OpenAPI 3.0.

V4 tests are NOT regenerated by the master script — they are static MSTest test classes.

Critical Rules

  1. Always delete old generated files before regenerating. The generators only create files — they never delete files that are no longer selected by exclusion rules. Stale files cause compilation errors or false test passes.

  2. Run from the correct working directory. The V5 generator uses relative paths from appsettings.json.

Exclusion Configuration

Test exclusions (for known spec failures or draft-specific skips) are configured in appsettings.json in the V5 generator project.

Cross-References

  • For running the generated tests, see corvus-build-and-test
  • For the JSON Schema keyword system, see corvus-keywords-and-validation
  • Full guide: docs/RunningTests.md

© corvus-dotnet, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .github/skills/corvus-test-suite-regeneration of corvus-dotnet/Corvus.JsonSchema.

Open the folder on GitHubat commit ca269a3

Compare with similar skills

Corvus Test Suite Regeneration next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Corvus Test Suite Regeneration compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Corvus Test Suite Regeneration this skillcorvus-dotnet/Corvus.JsonSchema200—~866Automated safety check: PassApache-2.0
Test RoadmapOvid/paad131—~2.3kAutomated safety check: PassMIT
Verify Changesh0x91b/dev-3.0309—~1.7kAutomated safety check: PassApache-2.0
Codexqa Testcase Generatoropenqa-cn/codexqa152—~3.6kAutomated safety check: PassMIT
Git Facade Test Conventionsruby-git/ruby-git1.8k—~4.2kAutomated safety check: PassMIT
MAUI UI Test Writerdotnet/maui23k—~3kAutomated safety check: PassMIT

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Works with

Categories

Questions about Corvus Test Suite Regeneration

What does Corvus Test Suite Regeneration do?

Regenerate JSON Schema test classes from the JSON-Schema-Test-Suite git submodule. JsonSchema. Regenerate JSON Schema test classes from the JSON-Schema-Test-Suite git submodule.

When should I use Corvus Test Suite Regeneration?

Corvus Test Suite Regeneration fits situations like: : updating the test suite submodule; regenerating test classes after submodule; generator changes; understanding the test infrastructure.

How do I install Corvus Test Suite Regeneration in Claude Code?

Run `npx skills add corvus-dotnet/Corvus.JsonSchema --skill corvus-test-suite-regeneration -a claude-code`. Or copy the skill folder (.github/skills/corvus-test-suite-regeneration in corvus-dotnet/Corvus.JsonSchema) into .claude/skills/corvus-test-suite-regeneration in your project. Claude Code loads it when a task matches its description.

How do I install Corvus Test Suite Regeneration in Codex?

Run `npx skills add corvus-dotnet/Corvus.JsonSchema --skill corvus-test-suite-regeneration -a codex`. Or copy the skill folder (.github/skills/corvus-test-suite-regeneration in corvus-dotnet/Corvus.JsonSchema) into .agents/skills/corvus-test-suite-regeneration in your project. Codex loads it when a task matches its description.

Can I use Corvus Test Suite Regeneration in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add corvus-dotnet/Corvus.JsonSchema --skill corvus-test-suite-regeneration -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/corvus-test-suite-regeneration, .gemini/skills/corvus-test-suite-regeneration, .github/skills/corvus-test-suite-regeneration and .opencode/skills/corvus-test-suite-regeneration in your project.

What does Corvus Test Suite Regeneration need to run?

Going by SKILL.md and its folder, Corvus Test Suite Regeneration needs the command-line tools its instructions call (dotnet).

Does Corvus Test Suite Regeneration access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Corvus Test Suite Regeneration safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Corvus Test Suite Regeneration use?

Corvus Test Suite Regeneration is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Corvus Test Suite Regeneration use?

About 866 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Corvus Test Suite Regeneration?

Skills that share tags, products or a category with Corvus Test Suite Regeneration: Test Roadmap (Ovid/paad, 131 stars), Verify Changes (h0x91b/dev-3.0, 309 stars), Codexqa Testcase Generator (openqa-cn/codexqa, 152 stars) and Git Facade Test Conventions (ruby-git/ruby-git, 1.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Corvus Test Suite Regeneration?

corvus-dotnet (a GitHub organization) maintains it in corvus-dotnet/Corvus.JsonSchema, which has 200 GitHub stars. The repository holds 28 skills in this directory. The repository was last updated on October 9, 2026.

Source: corvus-dotnet/Corvus.JsonSchema on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.