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Pull Request Overview
This pull request introduces comprehensive support for meta elements in POML, focusing on structured response schemas, tool registration, and runtime configuration. It also enhances expression evaluation and error handling across the POML engine and VSCode extension, while adding extensive documentation for these features.
- Added structured meta element handling with support for JSON and expression-based schemas
- Enhanced expression tokenization and evaluation for meta elements with
lang="expr" - Improved error handling and validation for OpenAPI schemas and tool configurations
Reviewed Changes
Copilot reviewed 8 out of 9 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| packages/poml/util/schema.ts | Added validation for OpenAPI schema input to prevent null/non-object values |
| packages/poml/tests/schema.test.ts | Added comprehensive test coverage for schema validation edge cases |
| packages/poml/tests/file.test.tsx | Added extensive tests for meta element expression evaluation and error handling |
| packages/poml/file.tsx | Enhanced meta element processing with expression evaluation and improved error reporting |
| packages/poml-vscode/command/testCommand.ts | Improved error messages for missing language model configuration settings |
| mkdocs.yml | Added navigation entry for new meta documentation |
| docs/vscode/features.md | Added documentation for CodeLens expression evaluation feature |
| docs/language/meta.md | Added comprehensive documentation for meta element usage and configuration |
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| } | ||
| } | ||
| this.runtimeParameters = runtimeParams; | ||
| return true; |
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The return statement is missing for non-runtime meta types. When metaType is not 'responseSchema', 'tool', or 'runtime', the function should return true to indicate the meta element was handled, but currently falls through without returning.
This pull request introduces comprehensive support for meta elements in POML, particularly focusing on structured response schemas, tool registration, and runtime configuration. It also improves expression evaluation and error handling in both the POML engine and the VSCode extension, and adds detailed documentation for these features. The most important changes are grouped below.
Meta Element and Schema Handling Enhancements:
docs/language/meta.md) detailing the usage of the<meta>element for version control, component management, response schemas, tool registration, and runtime parameters. [1] [2]PomlFileclass) to support:<meta type="responseSchema" lang="expr">and<meta type="tool" lang="expr">elements, including template variable interpolation and Zod schema handling. [1] [2] [3]lang="expr".VSCode Extension Improvements:
Engine Internals and Expression Handling:
These changes provide a more robust and user-friendly experience for defining, validating, and testing structured prompts and tool integrations in POML documents.