#sysml
4 entries
lesson · September 2026
Representation
See, with your own key, how the same question about the Apollo 11 SysML v2 model changes in tokens, cost and correctness as the representation changes.
projects · March 2026
kebnf
Converts the OMG's KeBNF text for KerML and SysML v2 into ANTLR4 and tree-sitter grammars from one AST, all 640 rules, recording the metamodel annotations it strips. A mechanically faithful tree-sitter emitter timed out parsing a one-line file; inlining shared prefix keywords took it to 0.15ms and cut LR conflicts from 335+ to 199.
projects · March 2026
sysml
A single Rust binary that parses SysML v2 models into a queryable knowledge graph, exposed through a clap CLI for humans and CI and a stdio MCP server for agents, both over the same core. The open question is whether the CLI is the cheaper transport for an agent, and I have not measured it yet.
projects · March 2026
sysml-bench
An evaluation harness asking whether giving a tool-augmented LLM more tools actually helps it answer questions about a SysML v2 engineering model. 88 tasks scored per field against published schemas, run across four tool sets and six public corpora, with a pre-registered replication whose frozen hypothesis did not survive the independent corpus.