MCP server for executing LangChain Expression Language (LCEL) runnable graphs with streaming support, fallback branches, and topological validation
This server has a single tool 'execute_skill_action' with virtually no definition. The tool name is vague (execute_skill_action could mean anything), the description is generic (10 words, under the 34-char p10 baseline), and critically, NO input schema is visible in the source code. The mcp_server.py file only prints a JSON status message and does not implement the MCP protocol at all, it does not handle tool calls, parse requests, or return structured responses. The client.py and example_usage.py files are standalone Python classes unrelated to MCP. This is not a functional MCP server.
Execute a skill action within the composable runnable expression chain orchestrator
Tool name 'execute_skill_action' is vague and generic. Does not start with a clear action verb (get, create, update, delete, search, list, send). 'Execute' + 'skill_action' is ambiguous, what skill? What action? Violates verb_noun naming convention.
Tool description is 10 words (under 20-char minimum). Description does not explain WHAT the tool does, WHEN to use it, or what it returns.
mcp_server.py does not implement MCP protocol. It only prints a static JSON status message and does not handle incoming requests, parse tool calls, or return structured responses. This is not a functional MCP server.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 13 | 2026-07-28+ | v2 |
No parameter descriptions or types defined. LLMs cannot infer what inputs execute_skill_action expects or how to call it.