Fixes D1-D3 of plans/2026-07-11-nomos-agent-code-review.md:
- D1: deleted isTaskTool — defined, never called (dispatch already checks
handleTaskTool's own `handled` return value).
- D2: recordTouched issued one SELECT per entity slug found in a tool call's
args; batched into one `WHERE slug = ANY($1)` query. Verified live: a turn
naming three separate entities recorded involves edges for all three via
the single batched lookup.
- D3: complete_task's outcome had a declared enum (success|failure|partial)
in its tool schema but nothing validated it — an out-of-enum value (model
typo or a weaker model not respecting the schema) silently persisted as-is,
with only "failure" special-cased (anything else became status='done'
regardless of what the value actually said). Now validated in
handleTaskTool: empty defaults to "success" (unchanged), a recognized value
passes through, anything else defaults to "partial" (safer than silently
treating an unrecognized value as success) with a warning logged. Verified
live: instructed the agent to call complete_task with outcome="unclear" —
persisted as outcome='partial', not the literal invalid string.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>