move format-specific adapters to examples/, purge format-specific MCP tools

bex/mcp_server.py

@@ -1,20 +1,14 @@
-"""Grammar Inference Engine — MCP server.
+"""Dervish — MCP server.
 
 Provides tools to infer regular expression grammars from example sequences.
 Run as: python -m bex.mcp_server
 """
 
-import json
-import sys
-from pathlib import Path
-from typing import Any
-
 from mcp.server.fastmcp import FastMCP
 
 from .crx import CRX
 from .idregex import idregex
 from .ensemble import infer_ensemble, _matches
-from .yaml_to_seq import yaml_file_to_sequence, sequences_to_crx
 
 mcp = FastMCP("grammar-inference", log_level="ERROR")
 
@@ -54,8 +48,7 @@ def infer_best_grammar(
     N: int = 3,
 ) -> str:
     """Infer a compact grammar from example sequences. Use this when you
-    need to generate structured content (Ansible roles, CI configs, Helm
+    have examples of sequential data and want to learn the pattern.
-    values, YAML configs, etc.) and have existing examples to learn from.
 
     The grammar compresses N examples into ~100 chars — far fewer tokens
     than passing all examples. Pass the existing sequences, get back a
@@ -92,81 +85,6 @@ def infer_best_grammar(
     return "\n".join(lines)
 
 
-@mcp.tool()
-def infer_yaml_grammar(
-    yaml_dir: str,
-    pattern: str = "**/*.yml",
-    method: str = "crx",
-) -> str:
-    """Infer a grammar from YAML files by converting them to key-path sequences.
-
-    Each YAML file is converted to a sequence of key paths (DFS traversal).
-    CRX then learns the common pattern across all files.
-
-    Args:
-        yaml_dir: Root directory to search for YAML files.
-        pattern: Glob pattern for YAML files (default: **/*.yml).
-        method: Algorithm to use ('crx' or 'idregex').
-
-    Returns:
-        A regular expression grammar describing the YAML structure.
-    """
-    files = sorted(Path(yaml_dir).rglob(pattern))
-    sequences = []
-    for f in files:
-        if f.is_file():
-            try:
-                seq = yaml_file_to_sequence(f)
-                if seq:
-                    sequences.append(seq)
-            except Exception:
-                continue
-    if not sequences:
-        return "ε (no sequences found)"
-    if method == "crx":
-        return CRX().infer(sequences)
-    else:
-        result = idregex(sequences, kmax=2, N=3)
-        return result or "∅"
-
-
-@mcp.tool()
-def infer_ansible_role_grammar(roles_dir: str = ".") -> str:
-    """Infer grammars from Ansible role task module sequences.
-
-    Reads tasks/main.yml from each role, extracts the sequence of
-    Ansible module names, groups roles by category prefix, and learns
-    a per-category grammar.
-
-    Args:
-        roles_dir: Path to the Ansible roles directory.
-
-    Returns:
-        A formatted report with per-category grammars and role listings.
-    """
-    try:
-        from .role_grammar import collect_all_role_sequences, learn_grammar
-    except ImportError:
-        return "role_grammar module not available"
-
-    all_roles, by_category = collect_all_role_sequences(roles_dir)
-    if not all_roles:
-        return "No roles found."
-
-    lines = [f"Found {len(all_roles)} roles in {len(by_category)} categories\n"]
-    for cat in sorted(by_category.keys()):
-        items = by_category[cat]
-        seqs = [s for _, s in items]
-        lines.append(f"── {cat} ({len(items)} roles) ──")
-        if len(items) > 1:
-            g = learn_grammar(seqs)
-            lines.append(f"  Grammar: {g}")
-        name, seq = items[0]
-        lines.append(f"  Roles: {', '.join(n for n, _ in items)}")
-        lines.append("")
-    return "\n".join(lines)
-
-
 def main():
     mcp.run()