lean-lsp-mcp
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TDQS
Scored across 21 tools
Multiple search tools (lean_local_search, lean_leandex, lean_loogle, lean_leanfinder, lean_state_search, lean_hammer_premise) have overlapping purposes, differentiated only by backend or exact query type. The informal prover tools (gemini_informal_prover, gpt_informal_prover, discussion_partner) are nearly interchangeable, causing boundary confusion.
The core tools consistently use the lean_ prefix, but the AI tools break the pattern with gemini_, gpt_, and discussion_partner. Verb-noun and noun-only names are mixed (e.g., lean_build vs lean_goal), creating moderate inconsistency.
At 21 tools, the server is on the heavy side but each tool serves a niche purpose. The count is justified by the breadth of Lean development and search needs, though some redundancy inflates the count.
Core Lean workflows are well covered: file outline, diagnostics, goals, hover, completions, build, and run code. Search is extensive, and AI integrations fill the gap for proof strategy. Missing direct file editing is minor since edits happen outside the server.