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debug

Generate debug fixtures for local testing of FastEdge WASM apps in the visual debugger.

1|Updated Jul 23, 2026
Search Tags:#debugging#edge computing#fixtures#wasm#scenario generation#fastedge#proxy-wasm
One-click install
npx skills add https://github.com/G-Core/fastedge-plugin --skill debug-g-core
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: debug
Source: https://github.com/G-Core/fastedge-plugin/tree/main/plugins/gcore-fastedge/skills/debug
Command: npx skills add https://github.com/G-Core/fastedge-plugin --skill debug-g-core

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @gcoredev/fastedge-test, and includes references (resource) components.

What problem does it solve? Manually authoring scenario configurations for the FastEdge visual debugger is tedious and error-prone, especially when an app has many geo-routing, env-var, or auth branches. This Skill generates a fixtures/ directory of ready-to-load .test.json scenarios so developers can inspect request/response behavior in the browser-based debugger without writing each fixture by hand. ## Core Features & Use Cases - Manual and Inferred Modes: Collaboratively pick scenarios from source reading, or pass --infer to derive a structured scenario list automatically using the patterns in reference/inference.md. - Safe Fixture Writes: Pre-flight checks never silently overwrite hand-authored .test.json or .env files; conflicting fixtures trigger a diff summary and an explicit keep/replace/cancel prompt. - Governance-Aware Setup: Detects "never change code" rules in AGENTS.md/CLAUDE.md before mutating package.json, and supports --no-modify-project / --modify-project overrides. - Smoke Checks and Rust Stderr Pre-Check: Optionally validates fixtures load cleanly via @gcoredev/fastedge-test, and warns Rust developers when eprintln!/stderr logging would be invisible in the debugger. - Use Case: A developer with a geo-redirect CDN app runs the skill with --infer and gets happy-path, germany, us, and fallback fixtures plus a fixtures/.env, then loads each scenario in the visual debugger at localhost:5179. ## Quick Start Ask the agent to generate debug fixtures for your FastEdge project, optionally with the --infer flag to derive scenarios from source automatically.

Frequently Asked Questions about debug

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate debug fixtures for a FastEdge WASM app?▼

Run the debug skill against your project directory to create a fixtures/ directory of .test.json scenario files. Use the --infer flag to derive scenarios automatically from source, or default manual mode to pick scenarios collaboratively.

What is the difference between FastEdge debug fixtures and tests?▼

Fixtures are manual exploration scenarios loaded in the visual debugger's browser UI, while tests are CI pass/fail assertions generated by the separate test skill. Both use .test.json-style configs but serve independent purposes.

Does the debug skill overwrite my existing fixtures?▼

No. A pre-flight scan buckets each intended write: identical files are skipped, new files are written, and differing files trigger a diff summary with keep/replace/cancel options. Existing fixtures/.env files are always preserved.

Why are my Rust log lines missing in the FastEdge visual debugger?▼

FastEdge captures stdout only, so eprintln!, eprint!, io::stderr, and default env_logger output are silently dropped. The skill's Rust pre-check scans for these patterns and warns you to convert them to println! before debugging.

Can I prevent the skill from modifying package.json?▼

Yes. Pass --no-modify-project to skip all package.json mutation and receive manual setup instructions instead. The skill also auto-detects "never change code" rules in AGENTS.md or CLAUDE.md and switches to recommendation-only mode.

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