OAICLI

A .NET CLI that uses the OpenAI Chat Completions API (gpt-4o) to generate unit tests and XML documentation comments for C# code in the current solution.

OAICLI scans the current .sln and .csproj files, gathers C# source files, and posts them to OpenAI along with a structured prompt and response schema. The model returns JSON containing a summary, file edits, and a commit message; the tool then displays the diff and (optionally) applies the changes.

• Built on ktsu.Sdk.App (multi-targeted from netstandard2.0 through net10.0).
• CLI uses Spectre.Console.Cli with CommandLineParser for option parsing, plus Spectre's Json and ImageSharp extensions for rich console output.
• Calls the OpenAI HTTP API directly (POST https://api.openai.com/v1/chat/completions) — does not depend on any OpenAI SDK.
• The expected response schema is generated via NJsonSchema.
• Hard-codes the gpt-4o model.

On first run the tool prompts for an OpenAI API key and stores it in the operating system's secret store via ktsu.CredentialCache — Windows Credential Manager, macOS Keychain, or libsecret (Secret Service) on Linux. Subsequent runs reuse the stored key.

A key saved by an earlier version, which kept it in plaintext in ktsu.AppDataStorage's JSON file (typically %APPDATA%\ktsu\OAICLI on Windows), is migrated into the secret store on the next run and blanked in the old file. Nothing needs to be re-entered.

If no secret store is available — most often a Linux host with no Secret Service provider installed and unlocked, which is common over SSH and in containers — the tool reports that and stops. It does not fall back to writing the key to a plain file.

git clone <repo>
cd OAICLI
dotnet build

# Generate tests for the current solution (default)
OAICLI

# Generate XML doc comments for the current solution
OAICLI document

# Provide additional context files
OAICLI test --context path/to/helper.cs path/to/extension.cs

# Skip the diff preview prompt
OAICLI test --force

MIT — see LICENSE.md.