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api-quality-checks

Testing & Quality
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API class validation rules for Scopy plugins. Auto-loads when reviewing or editing `*_api.h` / `*_api.cpp` files or running API quality checks.

QUICK START

How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
Prompt to paste
I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/analogdevicesinc/scopy/blob/HEAD/tools/scopy_dev_plugin/skills/api-quality-checks/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/api-quality-checks/. Do not write files or run scripts until I approve.

After I approve, install the complete skill folder, including required referenced files, into that project location. Verify it is discoverable, then tell me its actual invocation name and how to use it. Do not claim it is installed until you have verified it.

Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

API Quality Check Rules

Apply these 7 validation categories when reviewing or generating API classes for Scopy plugins.

CRITICAL

[A1] Inheritance & Structure

  • Class inherits from ApiObject
  • Q_OBJECT macro is present in the class body
  • Export macro (SCOPY_<PLUGIN>_EXPORT) is on the class declaration
  • Constructor takes <Plugin>Plugin * as its sole argument

[A2] Plugin Integration

  • friend class <Plugin>_API is declared in the plugin header
  • m_api is declared as <Plugin>_API *m_api = nullptr; in the plugin header
  • initApi() is declared in the plugin header
  • initApi() is the last call in onConnect() before return true
  • delete m_api; m_api = nullptr; is the first statement in onDisconnect()
  • ScopyJS::GetInstance()->registerApi(m_api) is called inside initApi()
  • m_api->setObjectName("<name>") uses a lowercase, short name consistent with similar plugins
  • The .cpp file ends with #include "moc_<plugin>_api.cpp"

[A3] Null Safety

  • Every Q_INVOKABLE method null-checks plugin/instrument members before accessing them
  • readFromWidget() / writeToWidget() null-check m_widgetGroup before use

[A5] Conversion Correctness

Cross-reference the tool's IIOWidget lambdas to verify:

  • Hz attributes: getter divides raw value ÷1e6; setter multiplies by ×1e6
  • Suffix attributes (e.g. " dB"): getter strips the suffix before returning
  • dBFS↔linear: getter applies 20*log10(1/linear) rounded to int; setter applies pow(10, -val/20)
  • Combo attributes: setter validates the input against a static QStringList before calling writeToWidget

WARNING

[A4] API Coverage

  • getTools() method is present
  • Every writable IIOWidget has a getter and a setter; every read-only widget has only a getter
  • Generic readWidget() / writeWidget() helpers are present

[A6] Private Helper Pattern

  • readFromWidget(const QString &key) and writeToWidget(const QString &key, const QString &value) are declared as private helpers
  • Both helpers null-check m_plugin->m_widgetGroup before accessing it

INFO

[A7] Naming & Types

  • Getters return QString; setter parameters use const QString &
  • No public getters were added to instrument classes just for API access — use friend class instead
  • Naming follows the convention: get<Attribute>() / set<Attribute>()