feat(resources): improve CodeQL MaD extensions support

[data-douser]

Closes #261.

Summary of Changes

Implements changes required for resolution of issue #261 and first-class support for CodeQL Models-as-Data (MaD) extensions as part of agentic CodeQL development.

Add per-language library-modeling resources, a common data-extensions overview, and a procedural MCP prompt for data extension development workflows.

Resources:

• Add library-modeling for cpp, csharp, java, javascript, python, ruby (from template PR Add deterministic release version updater and pack fixes #42)
• Add data-extensions-overview.md covering MaD tuple and API Graph formats (codeql://learning/data-extensions)
• Update Go library-modeling with barrierModel and barrierGuardModel (CodeQL 2.25.2+)
• Register 6 new language resources in language-types.ts

Prompt:

• Add data_extension_development MCP prompt with 8-step procedural workflow (from template PR Build(deps-dev): bump @types/node from 25.2.2 to 25.2.3 #48)

Docs:

• Update server-overview.md, server-prompts.md, server-queries.md with new URIs and references

Outline of Changes

TODO

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details
actions/actions/setup-go	4a3601121dd01d1626a1e23e37211e3254c1c06c	🟢 5.7	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 6 7 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 6 Binary-Artifacts 🟢 10 no binaries found in the repo CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Packaging ⚠️ -1 packaging workflow not detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Pinned-Dependencies ⚠️ 0 dependency not pinned by hash detected -- score normalized to 0 Fuzzing ⚠️ 0 project is not fuzzed License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Security-Policy 🟢 9 security policy file detected Branch-Protection ⚠️ 0 branch protection not enabled on development/release branches SAST 🟢 10 SAST tool is run on all commits

Scanned Files

• .github/workflows/lint-and-format.yml

[Copilot]

Pull request overview

Adds first-class Models-as-Data (MaD) / data extensions documentation and workflow support to the CodeQL Development MCP Server, enabling agentic development of library models via new learning resources, per-language guides, and a dedicated MCP prompt.

Changes:

• Added a new codeql://learning/data-extensions resource plus per-language library-modeling resources for multiple languages.
• Introduced a new data_extension_development workflow prompt (template + registration + schema) for end-to-end MaD authoring/testing.
• Updated server documentation and tests to account for newly registered resources/prompts and expanded Go library-modeling docs with barrierModel / barrierGuardModel.

Show a summary per file

File	Description
server/test/src/resources/language-resources.test.ts	Updates expectations for additional language resources registration.
server/test/src/prompts/workflow-prompts.test.ts	Updates prompt-name count expectation for the new workflow prompt.
server/src/types/language-types.ts	Registers new per-language library-modeling markdown resources via additionalResources.
server/src/tools/codeql-resources.ts	Registers new learning resource codeql://learning/data-extensions.
server/src/resources/server-queries.md	Table formatting adjustments in bundled queries documentation.
server/src/resources/server-prompts.md	Documents the newly added data_extension_development prompt.
server/src/resources/server-overview.md	Adds references to the new data extensions resource and library-modeling resources; updates prompt count/category list.
server/src/resources/languages/cpp_library_modeling.md	Adds C/C++ library-modeling (MaD) guidance resource.
server/src/resources/languages/csharp_library_modeling.md	Adds C# library-modeling (MaD) guidance resource.
server/src/resources/languages/java_library_modeling.md	Adds Java/Kotlin library-modeling (MaD) guidance resource.
server/src/resources/languages/javascript_library_modeling.md	Adds JavaScript/TypeScript library-modeling (API graph format) guidance resource.
server/src/resources/languages/python_library_modeling.md	Adds Python library-modeling (API graph format) guidance resource.
server/src/resources/languages/ruby_library_modeling.md	Adds Ruby library-modeling (API graph format) guidance resource.
server/src/resources/languages/go_library_modeling.md	Extends Go library-modeling docs with barrierModel / barrierGuardModel (2.25.2+).
server/src/resources/data-extensions-overview.md	Adds shared overview doc covering MaD formats, predicates, packs, and workflow.
server/src/prompts/workflow-prompts.ts	Registers data_extension_development prompt, schema, and handler.
server/src/prompts/data-extension-development.prompt.md	Adds the procedural workflow prompt template for data extension development.
server/src/lib/resources.ts	Adds getDataExtensionsOverview() for serving the new learning resource.
server/dist/codeql-development-mcp-server.js	Updates the built server bundle to include new resources/prompt wiring.

Copilot's findings

• Files reviewed: 18/20 changed files
• Comments generated: 5

[Copilot]

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[Copilot]

Copilot's findings

• Files reviewed: 20/22 changed files
• Comments generated: 1