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fix: normalize node type prefixes for n8n workflow exports (#71)

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- Add centralized normalizeNodeType utility to handle prefix conversion
  - n8n-nodes-base.* → nodes-base.*
  - @n8n/n8n-nodes-langchain.* → nodes-langchain.*
- Update all 9 affected MCP tools to use normalized node types
- AI agents can now use node types directly from n8n workflow exports
- Maintains backward compatibility with existing shortened prefixes
- Add comprehensive test coverage for all affected methods

Fixes #71

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
2025-07-18 11:31:38 +02:00
parent 5dd932c19d
commit f8fa782d7f
6 changed files with 196 additions and 92 deletions
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docs/CHANGELOG.md
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@@ -5,6 +5,25 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [2.7.18] - 2025-07-18
### Fixed
- **Node type prefix normalization for AI agents** (Issue #71)
- AI agents can now use node types directly from n8n workflow exports without manual conversion
- Added automatic normalization: `n8n-nodes-base.httpRequest` → `nodes-base.httpRequest`
- Added automatic normalization: `@n8n/n8n-nodes-langchain.agent` → `nodes-langchain.agent`
- Fixed 9 MCP tools that were failing with full package names:
- `get_node_info`, `get_node_essentials`, `get_node_as_tool_info`
- `search_node_properties`, `validate_node_minimal`, `validate_node_config`
- `get_property_dependencies`, `search_nodes`, `get_node_documentation`
- Maintains backward compatibility - existing short prefixes continue to work
- Created centralized `normalizeNodeType` utility for consistent handling across all tools
### Added
- **Node type utilities** in `src/utils/node-utils.ts`
- `normalizeNodeType()` - Converts full package names to database format
- `getNodeTypeAlternatives()` - Provides fallback options for edge cases
## [2.7.17] - 2025-07-17
### Fixed
@@ -664,6 +683,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Basic n8n and MCP integration
- Core workflow automation features
[2.7.18]: https://github.com/czlonkowski/n8n-mcp/compare/v2.7.17...v2.7.18
[2.7.17]: https://github.com/czlonkowski/n8n-mcp/compare/v2.7.16...v2.7.17
[2.7.16]: https://github.com/czlonkowski/n8n-mcp/compare/v2.7.15...v2.7.16
[2.7.15]: https://github.com/czlonkowski/n8n-mcp/compare/v2.7.13...v2.7.15