Grammar Features

analyzeGrammar consumes validated Grammar IR and returns the versioned feature object. Reporters do not re-parse source and do not calculate separate metrics.

Feature groups include:

• size: rules, alternatives, terminals, unresolved symbols, and largest rules;
• structure: reachability, productivity, recursion, dependency depth, and cycles;
• precedence and lexicon details;
• EBNF sugar and action presence;
• capabilities and diagnostics.

The schema is documented in docs/features-schema.md. Treat the feature version as a contract: consumers should validate the version and handle additions explicitly.

Reports

The same object can be rendered as JSON, Markdown, an LLM digest bounded by budgetChars, or SARIF. The LLM digest is a derived summary, not a replacement for the canonical JSON.