- method: an embedded-SQL app is a grammar corpus; catalogue what it
actually uses and add only that, translating its statements 1:1 as
the acceptance (the postgres/System.Linq reference pattern applied to
a whole application)
- corpus #1 = ~/projects/skillhost (C++ MCP host, embedded SQLite skill
catalog): surveyed, entire SQL footprint is one file — 1 table, a
single-row parameterized INSERT, 4 SELECTs. 3 of 5 statements already
run on the 9b surface (insert, where name==?, order by name; PK ≈
@unique). Exactly 2 are the real gap:
- whole-query `count` (group-free; the degenerate aggregate, NOT
the parked group-by)
- correlated `not exists` subquery (skillhost's roots-of-the-tree)
- notable finding: skillhost's NOT EXISTS is naturally a `backlink`
emptiness in writeonce (children backlink + len==0), so the corpus
may be fully expressible once len(query) is confirmed — the iteration
may collapse to "confirm len(query) + add exists"; forks record this
- explicitly parks everything skillhost does NOT use (join/having/
offset/distinct/CTE/window/union/upsert/returning/json/fts/triggers)
and the full group-by; each enters only when a corpus demands it
- acceptance: docs/examples/skill-catalog mirroring skillhost's schema
+ its 5 catalog ops as writeonce translations
- roadmap + board rows added
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
