Read-only MCP server for Cisco Unified CM 15 AXL — built for LLM-driven
cluster auditing, with a particular focus on the Route Plan Report:
partitions, calling search spaces, route patterns, translation patterns,
called/calling party transformations, and digit-discard instructions.
Pairs intentionally with the sibling mcp-cisco-docs server (live
cluster state + vendor docs in one LLM context).
Architecture:
- zeep SOAP client to CUCM AXL
- WSDL bootstrap from Cisco's axlsqltoolkit.zip (auto-extract on
first launch; zip is gitignored, vendor-licensed)
- SQLite response cache at ~/.cache/mcp-cucm-axl/responses/
- Schema-grounded prompts that pull chunks from the sibling
cisco-docs index (docs_loader.py)
Read-only by structural guarantee — never registers AXL write methods
(no executeSQLUpdate, no add*/update*/remove*/apply*/reset*/restart*
tools). SQL queries also client-side validated (sql_validator.py) to
begin with SELECT or WITH.
Tools exposed:
Foundational: axl_version, axl_sql, axl_list_tables,
axl_describe_table, cache_stats, cache_clear
Route plan: route_partitions, route_calling_search_spaces,
route_patterns, route_inspect_pattern,
route_lists_and_groups, route_translation_chain,
route_digit_discard_instructions
Prompts (schema-grounded):
route_plan_overview, investigate_pattern, audit_routing,
cucm_sql_help
Tests cover cache, docs_loader, normalize, sql_validator, wildcard.
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
"""Tests for the docs index loader (chunk filtering for prompt enrichment)."""
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import json
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from pathlib import Path
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import pytest
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from mcp_cucm_axl.docs_loader import DocsIndex
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@pytest.fixture
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def fake_index(tmp_path: Path) -> Path:
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chunks = [
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{
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"id": "cucm::v15::admin::Route-Plan-Overview::0",
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"text": "The route plan defines how calls are routed through the cluster.",
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"heading_path": ["Route Plan Overview"],
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"source_path": str(tmp_path / "fake.md"),
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"product": "cucm",
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"version": "v15",
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"doc": "admin",
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},
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{
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"id": "cucm::v15::admin::Translation-Patterns::0",
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"text": "Translation patterns rewrite digits before routing.",
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"heading_path": ["Call Routing", "Translation Patterns"],
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"source_path": str(tmp_path / "fake.md"),
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"product": "cucm",
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"version": "v15",
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"doc": "admin",
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},
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{
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"id": "cer::v15::admin::Caller-ID::0",
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"text": "Caller ID handling for emergency calls.",
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"heading_path": ["Caller ID"],
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"source_path": str(tmp_path / "fake.md"),
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"product": "cer",
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"version": "v15",
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"doc": "admin",
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},
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]
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(tmp_path / "chunks.jsonl").write_text(
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"\n".join(json.dumps(c) for c in chunks)
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)
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(tmp_path / "index_meta.json").write_text(
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json.dumps({"model_name": "test", "embedding_dim": 384, "products": ["cucm", "cer"]})
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)
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return tmp_path
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def test_load_index(fake_index: Path):
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idx = DocsIndex.load(fake_index)
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assert idx is not None
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assert len(idx.chunks) == 3
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def test_load_missing_returns_none(tmp_path: Path):
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assert DocsIndex.load(tmp_path / "nope") is None
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def test_find_filters_by_product(fake_index: Path):
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idx = DocsIndex.load(fake_index)
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assert idx is not None
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cucm_only = idx.find(["caller"], product="cucm")
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assert all(c.get("doc") for c in cucm_only)
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cer_only = idx.find(["caller"], product="cer")
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assert any("Caller" in (c["heading_path"] or [""])[0] for c in cer_only)
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def test_find_scores_heading_higher_than_text(fake_index: Path):
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idx = DocsIndex.load(fake_index)
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assert idx is not None
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results = idx.find(["translation"], product="cucm")
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assert results
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# The chunk with "Translation Patterns" in heading should rank above
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# any other chunk that just mentions translation incidentally
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assert "Translation" in " ".join(results[0]["heading_path"] or [])
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def test_find_no_matches(fake_index: Path):
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idx = DocsIndex.load(fake_index)
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assert idx is not None
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assert idx.find(["xyzzyplugh"]) == []
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def test_format_for_prompt_includes_heading_and_text(fake_index: Path):
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idx = DocsIndex.load(fake_index)
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assert idx is not None
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chunks = idx.find(["route plan"], product="cucm")
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rendered = idx.format_chunks_for_prompt(chunks)
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assert "Route Plan Overview" in rendered
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assert "route plan defines" in rendered.lower()
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def test_format_empty_chunks(fake_index: Path):
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idx = DocsIndex.load(fake_index)
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assert idx is not None
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rendered = idx.format_chunks_for_prompt([])
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assert "No matching" in rendered
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