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Marius CiepluchandClaude Opus 5
9a65c998b4
Fourteen specs have accumulated and the roadmap still described a pre-Joern world -- "adjudication is still Python-ast plus a tree-sitter CLI stub", "Joern-as-required deferred" -- which is stale enough to mislead someone reading it to decide what to do next. It is kept as roadmap-2026-09-04.md rather than deleted. **overview.md** is the synthesis above the specs: what the tool is, how one pass works, what has been measured, and what is not true yet. Every number cites a committed artifact. The thesis is stated plainly -- the differentiator is not the dataflow engine, since CodeQL and Semgrep have one and developers do not turn it on, but the rung: a claim you can act on without writing a query, and an explicit admission when the engine could not decide. It says what does not work as clearly as what does. The C story is structurally broken, not undertuned. One language is demonstrated. PHP, Ruby and Go have zero families, so Joern would parse them and the engine would say nothing. The evidence base is two repositories and one has never produced a true positive. Control dependence is unavailable in both CPGs. execution_confirmed has no production caller. And it records the lesson that shaped the current specs: nine defects found by pointing the tool at two real repositories, three of them the same bug in three matchers, with the three gates byte-identical through every fix -- so a corpus of function-level pairs could not have caught any of them. **roadmap.md** is ordered by the standing test, that the tool must find bugs or it is SAST noise. Which gives the ordering principle: make the output worth reading, then make it find more. A better arbiter behind an unreadable report changes nothing, and a second language before the report is fixed doubles the noise. It also says what is NOT being worked and why -- authorization-obligations and reachability-flow-model were largely delivered by other routes and should be reconciled or retired rather than carried as approved-not-started, which misrepresents both. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]> Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG