MCP server:
- analyze_directory: updated signature to match CLI (split_mixed,
min_structure, min_methods, min_coverage=0.05)
- get_grammar(directory, file_path, context_symbol): returns the right
GBNF for constrained generation at code generation time
- get_package_grammars(directory, file_path): lists all grammars for
a file's package, ranked by quality
YAML output:
- _build_yaml_output now includes leaf grammars from recursive split
(all_grammars in meta), so each calling context gets its own entry
Workflow for agents:
1. analyze_directory → grammars.yml persisted
2. get_grammar(file, 'return') → GBNF for constrained generation
3. LLM generates code following the package's convention
- Ensemble inference (infer_ensemble) runs both CRX and iDRegEx, picks best by MDL
- CRX: CRX algorithm for wide coverage (accepts all sequences, large vocabulary)
- iDRegEx: iDRegEx for minimal core grammar (tightest common pattern)
- MDL scoring: fixed model_cost to count alphabet symbol occurrences, fixed dispatch order in _count_words_fast
- Fixed _match_tokens: rewritten as _match_possible with proper backtracking
- Fixed _parse_parts disjunction: children use _parse_flat_symbol to avoid dot-splitting
- MCP server: infer_best_grammar and infer_grammar tools
- Added prefer parameter (crx/idregex) to skip ensemble
- 28 passing tests
- SHOWCASE.md with Geerlingguy Galaxy demonstration
- blog_post.md with full technical deep-dive
