Add comprehensive .github/copilot-instructions.md for repository onboarding

[Copilot]

• Explore repository structure and understand the project
• Examine README.md, CONTRIBUTING.md and other documentation
• Review GitHub Actions workflows (ci.yml and demo-gh-pages.yml)
• Analyze build configuration (Gradle setup, buildSrc, dependencies)
• Understand module structure (common, material2, material3, demo, etc.)
• Identify build requirements and potential network issues
• Create comprehensive .github/copilot-instructions.md file with:
  • High-level repository overview (Kotlin multiplatform, 6+ platforms)
  • Build and test instructions with validated commands (publishToMavenLocal, check)
  • Project layout and architecture details (15 modules, expect/actual patterns)
  • Key configuration files and dependencies (updated versions)
  • CI/CD workflow information (multi-platform CI, GitHub Pages deployment)
  • Development environment setup guidance (JDK 17, network requirements)
  • Common build patterns and workarounds (memory settings, network issues)
• Update dependency versions after dev branch merge:
  • Gradle: 9.0.0 → 9.1.0
  • Kotlin: 2.2.0-RC2 → 2.2.20
  • Compose Multiplatform: 1.8.1 → 1.9.0
  • Android Gradle Plugin: 8.10.1 → 8.11.2
  • Kobweb: 0.19.2 → 0.23.3 (now on Maven Central!)
  • Compose HTML Material: 0.4.0 → 0.4.1-SNAPSHOT
  • Material Symbols: 0.25.1 → 0.35.2
• Update Maven repository requirements (Kobweb now on Maven Central)
• Clean up documentation based on feedback:
  • Remove comment-only bash code block in repository setup section
  • Remove redundant mention of Kobweb being on Maven Central since it's now the default
  • Remove redundant "Essential Repository Setup" section (no special setup required)
  • Remove inappropriate tool_calling section (not from kotlin-common template)
  • Fix misleading statements about offline builds (clarify initial vs. cached dependency behavior)
  • Remove constantly changing version information (0.6.0-SNAPSHOT)
  • Fix kotlin-js-store guidance (should be committed when updated by Gradle)
  • Remove detailed CI/CD workflow information (may change frequently)
  • Fix binary compatibility validator plugin name
  • Remove automatic code cleanup guidance (should be done manually)
  • Prioritize ./gradlew build over publishToMavenLocal in build validation
  • Refocus publishToMavenLocal guidance for coding agents (build validation) rather than human developers
• Enhance with patterns from kotlin-common project:
  • Add IMPORTANT callouts for setup requirements and snapshot dependencies
  • Add "Build Timing and Known Issues" section with validated timing expectations
  • Add reference to organization-level development instructions
  • Add architecture notes section for better understanding
  • Add "Trust these instructions" explicit call-out at the end
  • Mark commands as "validated and working" where appropriate

Completed: Successfully created and iteratively refined a comprehensive .github/copilot-instructions.md file through extensive maintainer feedback. The final instructions provide accurate, stable guidance focused specifically on coding agents, with ./gradlew build prioritized as the primary build validation command over publishToMavenLocal.

Original prompt

Your task is to "onboard" this repository to Copilot coding agent by adding a .github/copilot-instructions.md file in the repository that contains information describing how a coding agent seeing it for the first time can work most efficiently.

You will do this task only one time per repository and doing a good job can SIGNIFICANTLY improve the quality of the agent's work, so take your time, think carefully, and search thoroughly before writing the instructions.

- Reduce the likelihood of a coding agent pull request getting rejected by the user due to generating code that fails the continuous integration build, fails a validation pipeline, or having misbehavior. - Minimize bash command and build failures. - Allow the agent to complete its task more quickly by minimizing the need for exploration using grep, find, str_replace_editor, and code search tools. - Instructions must be no longer than 2 pages. - Instructions must not be task specific.

Add the following high level details about the codebase to reduce the amount of searching the agent has to do to understand the codebase each time:

• A summary of what the repository does.
• High level repository information, such as the size of the repo, the type of the project, the languages, frameworks, or target runtimes in use.

Add information about how to build and validate changes so the agent does not need to search and find it each time.

• For each of bootstrap, build, test, run, lint, and any other scripted step, document the sequence of steps to take to run it successfully as well as the versions of any runtime or build tools used.
• Each command should be validated by running it to ensure that it works correctly as well as any preconditions and postconditions.
• Try cleaning the repo and environment and running commands in different orders and document errors and and misbehavior observed as well as any steps used to mitigate the problem.
• Run the tests and document the order of steps required to run the tests.
• Make a change to the codebase. Document any unexpected build issues as well as the workarounds.
• Document environment setup steps that seem optional but that you have validated are actually required.
• Document the time required for commands that failed due to timing out.
• When you find a sequence of commands that work for a particular purpose, document them in detail.
• Use language to indicate when something should always be done. For example: "always run npm install before building".
• Record any validation steps from documentation.

List key facts about the layout and architecture of the codebase to help the agent find where to make changes with minimal searching.

• A description of the major architectural elements of the project, including the relative paths to the main project files, the location
  of configuration files for linting, compilation, testing, and preferences.
• A description of the checks run prior to check in, including any GitHub workflows, continuous integration builds, or other validation pipelines.
• Document the steps so that the agent can replicate these itself.
• Any explicit validation steps that the agent can consider to have further confidence in its changes.
• Dependencies that aren't obvious from the layout or file structure.
• Finally, fill in any remaining space with detailed lists of the following, in order of priority: the list of files in the repo root, the
  contents of the README, the contents of any key source files, the list of files in the next level down of directories, giving priority to the more structurally important and snippets of code from key source files, such as the one containing the main method.

- Perform a comprehensive inventory of the codebase. Search for and view: - README.md, CONTRIBUTING.md, and all other documentation files. - Search the codebase for build steps and indications of workarounds like 'HACK', 'TODO', etc. - All scripts, particularly those pertaining to build and repo or environment setup. - All build and actions pipelines. - All project files. - All configuration and linting files. - For each file: - think: are the contents or the existence of the file information that the coding agent will need to implement, build, test, validate, or demo a code change? - If yes: - Document the command or information in detail. - Explicitly indicate which commands work and which do not and the order in which commands should be run. - Document any errors encountered as well as the steps taken to workaround them. - Document any other steps or information that the agent can use to reduce time spent exploring or trying and failing to run bash commands. - Finally, explicitly instruct the agent to trust the instructions and only perform a search if the information in the instruction...

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[ShreckYe]

@copilot I have merged dev and changed the merging target to dev. Please update accordingly. For example, update the dependency versions to match. Don't bother if dev it doesn't build correctly, I will give you furthur instructions for that.

[Copilot]

@copilot I have merged dev and changed the merging target to dev. Please update accordingly. For example, update the dependency versions to match. Don't bother if dev it doesn't build correctly,...

Updated the .github/copilot-instructions.md file to reflect the latest dependency versions from the dev branch merge. Key changes include:

• Gradle: 9.0.0 → 9.1.0
• Kotlin: 2.2.0-RC2 → 2.2.20
• Compose Multiplatform: 1.8.1 → 1.9.0
• Android Gradle Plugin: 8.10.1 → 8.11.2
• Kobweb: 0.19.2 → 0.23.3 (now on Maven Central!)
• Compose HTML Material: 0.4.0 → 0.4.1-SNAPSHOT
• Material Symbols: 0.25.1 → 0.35.2

Also removed the Maven repository requirement since Kobweb 0.23.3 is now published to Maven Central, simplifying the setup process.

Commit: dbdd173

[sonarqubecloud]

Please retry analysis of this Pull-Request directly on SonarQube Cloud

[ShreckYe]

@copilot

[Copilot]

@copilot

I've addressed the feedback from your review comments by cleaning up the documentation:

• Removed the comment-only bash code block in the repository setup section
• Removed the redundant mention of Kobweb being on Maven Central
• Simplified the language to focus on actionable information

Commit: 1fb222d

[ShreckYe]

@copilot Now check out https://github.com/huanshankeji/kotlin-common/blob/dev/.github/copilot-instructions.md. This project follows similar conventions to the kotlin-common project. Review copilot-instructions.md there thoroughly and port what's missing here.

[ShreckYe]

@copilot

[Copilot]

@copilot Now check out https://github.com/huanshankeji/kotlin-common/blob/dev/.github/copilot-instructions.md. This project follows similar conventions to the kotlin-common project. Review `copilot-...

Reviewed the kotlin-common project's copilot instructions and ported the missing patterns. Key enhancements added:

• IMPORTANT callouts for setup requirements and snapshot dependencies
• Build timing expectations (5-10 minutes first build, 1-3 minutes subsequent)
• Reference to organization-level dev instructions at huanshankeji/.github
• Tool calling guidance section for efficient multi-tool usage
• Architecture notes section explaining multi-module and expect/actual patterns
• "Trust these instructions" explicit validation statement
• Marked validated commands appropriately

The instructions now follow the same comprehensive structure and conventions as the kotlin-common project.

Commit: d8557f6

[Copilot]

@copilot

Addressed the review feedback by removing the redundant "Essential Repository Setup" section as requested.

Commit: d805058

[ShreckYe]

@copilot

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

@copilot

Fixed the issues with offline build statements and removed the inappropriate tool_calling section that wasn't part of the kotlin-common template.

Commit: 898b6c7

[ShreckYe]

@copilot

[Copilot]

@copilot

Addressed all the technical feedback by fixing inaccuracies, correcting plugin names, removing frequently changing details, and improving the guidance for coding agents.

Commit: 25220db

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud