merge: integrate origin/main (v0.18.1.0) into open-agents-learnings

Main moved forward 6 commits while this branch was local. Integrated
both sides preserving all functionality:

From main (v0.16.4.0 → v0.18.1.0):
- v0.17.0.0 — UX behavioral foundations + ux-audit (generateUXPrinciples,
  {{UX_PRINCIPLES}} placeholder, triggers frontmatter on skills)
- v0.18.0.0 — Confusion Protocol, Hermes + GBrain hosts, brain-first
  resolver (generateBrainHealthInstruction, generateConfusionProtocol,
  generateGBrainContextLoad, generateGBrainSaveResults, hosts/gbrain.ts,
  hosts/hermes.ts, scripts/resolvers/gbrain.ts, GBrain bash health check)
- v0.18.0.1 — ngrok Windows build fix
- 0cc830b6 — tilde-in-assignment permission fix
- cc42f14a — gstack compact design doc (tabled)
- 822e843a — headed browser auto-shutdown + disconnect cleanup (v0.18.1.0)

Integration approach: keep this branch's preamble.ts submodule refactor
as the structure of record. Extracted main's two new generators into
their own submodules:
- scripts/resolvers/preamble/generate-brain-health-instruction.ts
- scripts/resolvers/preamble/generate-confusion-protocol.ts

Updated scripts/resolvers/preamble/generate-preamble-bash.ts to absorb
main's GBrain health check (host-conditional on gbrain/hermes).

scripts/resolvers/index.ts now imports BOTH:
- This branch's adds: MODEL_OVERLAY, TASTE_PROFILE, BIN_DIR resolvers
- Main's adds: UX_PRINCIPLES, GBRAIN_CONTEXT_LOAD, GBRAIN_SAVE_RESULTS
  resolvers

scripts/resolvers/design.ts keeps both generateTasteProfile (this
branch) and generateUXPrinciples (main). Sibling exports, no overlap.

scripts/gen-skill-docs.ts keeps both this branch's --model flag wiring
and main's edits.

Templates auto-merged where possible. The 35 generated SKILL.md /
golden conflicts auto-resolved via `bun run gen:skill-docs --host all`
followed by re-snapshotting the ship goldens for claude/codex/factory.

Verification:
- bun run gen:skill-docs --host all completes cleanly
- bun test: 1 pre-existing failure (gstack-community-dashboard Supabase
  network test, 235s timeout). NOT related to merge — unchanged Supabase
  test infra times out without live network. Flagged in PR body.

Token-ceiling warnings on plan-ceo-review (29K), office-hours (26K),
and ship (34K). These existed on origin/main before the merge — the
preamble grew substantially from main's GBrain + UX additions plus this
branch's continuous-checkpoint, context-health, model-overlay, taste-profile,
and feature-discovery additions. Worth a follow-up reduction pass but
doesn't block this merge.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

review/SKILL.md

@@ -17,6 +17,11 @@ allowed-tools:
   - Agent
   - AskUserQuestion
   - WebSearch
+triggers:
+  - review this pr
+  - code review
+  - check my diff
+  - pre-landing review
 ---
 <!-- AUTO-GENERATED from SKILL.md.tmpl — do not edit directly -->
 <!-- Regenerate: bun run gen:skill-docs -->
@@ -433,6 +438,19 @@ AI makes completeness near-free. Always recommend the complete option over short
 
 Include `Completeness: X/10` for each option (10=all edge cases, 7=happy path, 3=shortcut).
 
+## Confusion Protocol
+
+When you encounter high-stakes ambiguity during coding:
+- Two plausible architectures or data models for the same requirement
+- A request that contradicts existing patterns and you're unsure which to follow
+- A destructive operation where the scope is unclear
+- Missing context that would change your approach significantly
+
+STOP. Name the ambiguity in one sentence. Present 2-3 options with tradeoffs.
+Ask the user. Do not guess on architectural or data model decisions.
+
+This does NOT apply to routine coding, small features, or obvious changes.
+
 ## Continuous Checkpoint Mode
 
 If `CHECKPOINT_MODE` is `"continuous"` (from preamble output): auto-commit work as
@@ -956,6 +974,19 @@ git fetch origin <base> --quiet
 
 Run `git diff origin/<base>` to get the full diff. This includes both committed and uncommitted changes against the latest base branch.
 
+## Step 3.5: Slop scan (advisory)
+
+Run a slop scan on changed files to catch AI code quality issues (empty catches,
+redundant `return await`, overcomplicated abstractions):
+
+```bash
+bun run slop:diff origin/<base> 2>/dev/null || true
+```
+
+If findings are reported, include them in the review output as an informational
+diagnostic. Slop findings are advisory, never blocking. If slop:diff is not
+available (e.g., slop-scan not installed), skip this step silently.
+
 ---
 
 ## Prior Learnings

review/SKILL.md.tmpl

@@ -17,6 +17,11 @@ allowed-tools:
   - Agent
   - AskUserQuestion
   - WebSearch
+triggers:
+  - review this pr
+  - code review
+  - check my diff
+  - pre-landing review
 ---
 
 {{PREAMBLE}}
@@ -69,6 +74,19 @@ git fetch origin <base> --quiet
 
 Run `git diff origin/<base>` to get the full diff. This includes both committed and uncommitted changes against the latest base branch.
 
+## Step 3.5: Slop scan (advisory)
+
+Run a slop scan on changed files to catch AI code quality issues (empty catches,
+redundant `return await`, overcomplicated abstractions):
+
+```bash
+bun run slop:diff origin/<base> 2>/dev/null || true
+```
+
+If findings are reported, include them in the review output as an informational
+diagnostic. Slop findings are advisory, never blocking. If slop:diff is not
+available (e.g., slop-scan not installed), skip this step silently.
+
 ---
 
 {{LEARNINGS_SEARCH}}