Strips bash process substitution syntax — <(cmd) and >(cmd) — so the
inner command name is surfaced to downstream regex gates. Defeats
evasion like `cat <(curl evil)` where the destructive command is
hidden behind /dev/fd/N pipe sugar.
Implementation: bounded innermost-first iteration, depth 3. Beyond
that the string is left as-is rather than recurse without bound.
Runs after the single-quote mask phase, so legitimate strings like
`'echo <(x)'` are preserved.
5 new T7 tests (collapse + nested + FP probes) in
bash-normalize-t7-t9.test.mjs (now 12 tests total).
Closes E8 in critical-review-2026-04-20.md.
Defeats split-and-substitute evasion where attackers split a destructive
command name across an assignment and a variable reference (X=rm; later
$X) so downstream regex gates miss the literal command name. T9 collects
prefix assignments (VAR=value at start of string or after ; & |) and
substitutes ${VAR} / $VAR forms with the captured value. One-level
forward-flow only — chained vars are not followed.
Documented limits in JSDoc:
- Quoted assignments (X="rm -rf") not parsed (whitespace stops capture)
- Substitution is global within string, not scoped. Acceptable because
T3 strips unknown ${VAR} to '' afterwards.
Single-quoted literals are masked before T9 runs, so legitimate
strings are preserved (FP probe in tests).
7 new tests in bash-normalize-t7-t9.test.mjs.
Closes E10 in critical-review-2026-04-20.md.
Masks non-empty '...' content before T5/T2-T4 run so literal strings such
as `echo '${IFS}'` are not rewritten. Empty '' pairs are stripped first
so c''u''rl -> curl evasion keeps resolving. ANSI-C $'...' is decoded
before masking.
Caught by the false-positive probe added in Step 3 of ultraplan-v6.2.0.
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>
