Add a char-based CML finding that mirrors Claude Code's own startup warning
("Large CLAUDE.md will impact performance (X chars > 40.0k)"). CC 2.1.169 scales
that threshold with the model's context window, so the finding anchors on the
conservative 200k window (we cannot observe the user's window; the anchor fires
earliest) and discloses the relaxed ~200,000-char figure at 1M context. MEDIUM
severity (token cost, not an adherence cliff — consistent with the v5.2.0 reframe).
Keyed on chars, not lines, so it is complementary to the existing 200/500-line
checks (which stay untouched): a file can be long by lines yet under budget (short
lines, e.g. large-cascade at 37k chars / 1024 lines), or short by lines yet over it.
Extract the shared 200k/1M context-window constants to scanners/lib/context-window.mjs
(single source of truth; skill-listing-budget.mjs now imports + re-exports them).
40.0k figure and context-window scaling verified against the CC changelog (2.1.169,
2026-06-08) and the live startup-warning text. +6 tests, new fixture large-claude-chars
(48,531 chars / 100 lines). Suite 918/918, self-audit PASS configGrade A 97.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ter3E2JSi1Khgmuf2kady8
The >500-line check emitted HIGH severity with "Files over 500 lines
significantly reduce Claude's adherence to instructions." CC 2.1.169
scaled the "too long" warning by context window, and the plugin's own
configuration-best-practices.md:97 footnote already says raw line count
is a Sonnet-era heuristic superseded by cache-prefix stability — so the
absolute HIGH + universal adherence claim is now-wrong.
- >500 lines: HIGH -> MEDIUM, reworded to token-cost-every-turn +
smaller-context-model caveat + cache-prefix pointer; notes CC 2.1.169
scales the threshold by context window.
- >200 lines: stays MEDIUM, dropped the absolute "optimal adherence"
framing for the same token/context-window framing.
Aligns the scanner with anti-patterns.md:7 (CA-CML-001 = medium) and
configuration-best-practices.md:97. No snapshot impact (byte snapshots
use a 24-line fixture CLAUDE.md).
Full suite: 842/842 green (+5). self-audit PASS, A(100)/A(97).
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>
