The CC settings schema is passthrough (verified against the 2.1.193 binary): it
forwards unrecognized keys unchanged rather than rejecting them, so an arbitrary
unknown key is valid/forward-compatible, not an error — the finding's "silently
ignored" claim was factually wrong. The only real risk is a TYPO of a real key
(the intended setting then silently has no effect). Fix: flag an unknown key only
when it closely matches a known key (new levenshtein helper; edit distance <= 2,
both keys >= 4 chars); severity medium -> low; honest passthrough framing in the
scanner + humanizer. Also refreshed KNOWN_KEYS with 6 binary-verified keys
(agentPushNotifEnabled, remoteControlAtStartup, skipAutoPermissionPrompt,
skipDangerousModePermissionPrompt, skipWorkflowUsageWarning, tui). Suite 1341/0
(+12). Frozen v5.0.0 snapshots untouched (0 CA-SET findings there), no re-seed.
Dogfood ~/.claude/settings.json 6->0 (all 6 keys above were false unknown-key
findings; 0 typo flags introduced across 167 walked files).
Add /ultraresearch-local for structured research combining local codebase
analysis with external knowledge via parallel agent swarms. Produces research
briefs with triangulation, confidence ratings, and source quality assessment.
New command: /ultraresearch-local with modes --quick, --local, --external, --fg.
New agents: research-orchestrator (opus), docs-researcher, community-researcher,
security-researcher, contrarian-researcher, gemini-bridge (all sonnet).
New template: research-brief-template.md.
Integration: --research flag in /ultraplan-local accepts pre-built research
briefs (up to 3), enriches the interview and exploration phases. Planning
orchestrator cross-references brief findings during synthesis.
Design principle: Context Engineering — right information to right agent at
right time. Research briefs are structured artifacts in the pipeline:
ultraresearch → brief → ultraplan --research → plan → ultraexecute.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>