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codemod-semantic-providers

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Use when changing Codemod semantic analysis providers, language-core traits, JavaScript/TypeScript provider behavior, Python provider behavior, semantic-factory routing, tree-sitter loader behavior, goto-definition, find-references, or semantic integration tests.

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How to use this skill

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  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/codemod/codemod/blob/HEAD/.agents/skills/codemod-semantic-providers/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/codemod-semantic-providers/. 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

Codemod Semantic Providers

Key Areas

  • Shared traits and types: crates/language-core
  • JavaScript/TypeScript provider: crates/language-javascript
  • Python provider: crates/language-python
  • Provider selection: crates/semantic-factory
  • Parser loading: crates/tree-sitter-loader
  • Integration tests: crates/codemod-sandbox/tests/integration/semantic

Rules

  • Keep language-core language-neutral.
  • Preserve provider contracts for goto-definition, find-references, file identity, and virtual filesystem behavior.
  • Do not silently fall back to a different semantic provider when initialization fails.
  • Add fixtures for imports, aliases, workspace roots, ambiguous references, and false positives when behavior changes.
  • JavaScript provider changes should consider OXC resolver and Yarn PnP behavior.
  • Python provider changes should keep Ruff/ty integration narrow and version-aware.
  • Do not print directly to stdout/stderr from provider code. Return diagnostics or errors to callers so crates/cli can preserve TUI and JSONL output modes.

Validation

  • Provider crates: cargo test -p language-core -p language-javascript -p language-python -p semantic-factory
  • Sandbox semantic integration: cargo test -p codemod-sandbox semantic
  • Factory only: cargo test -p semantic-factory