[Feat] Introduce exploration modes, fast routes, skill detection (#1963)

* chore(deps, docs): bump marketplace version to 1.46.0

- Refine execution priority guidance in agent documentation
- Imrpvoe discovery guidance
- Improve context cache guidance
- Add script usage guidelines to agent documentation
- Simplify agent input references

* feat: bump marketplace version to 1.47.0 and enhance agent workflows

- Add Bug‑Fix Mode with validation gate for `debugger_diagnosis` tasks
- Expand allowed task types to include `research`
- Reduce subagent concurrency limit from 4 to 2
- Update design validation handling for flagged tasks
- Update marketplace plugin version reference to 1.47.0

* chore: bump marketplace version to 1.48.0 and refine agent context envelope workflow documentation

- Enhance the Init section in gem-browser-tester.agent.md, gem-code-simplifier.agent.md, and gem-critic.agent.md with detailed context envelope handling, active context treatment, and reuse_notes trust/verification logic.
- Add explicit steps for safe assumption, verification before use, and controlled re‑reading of context notes.

* chore: refine verification of symbol usages before modifying shared components

* chore(marketplace): bump version to 1.50.0; refactor(gem-browser-tester): simplify workflow steps

* chore(docs): simplify Phase 0 task classification and streamline initialization

* chore: Merges teps for batching

* feat: Enhcanc esuport for trivial/ low complex tasks

* chore: bump version to 1.56.0 and add config settings for visual regression, devops approvals, and orchestrator complexity

* chore: fix toc links

* chore: Remove emojis from headings

* chore: Update readme

* chore: Enforce orchestration

* chore: clarify orchestrator role and bump version to 1.59.0

* chore: bump version to 1.61.0 and refine agent documentation

* chore: bump version to 1.62.0 and refine agent documentation

* chore: bump version to 1.63.0 and add mandatory rules notice to all agent documentation files

* chore:  Improve batching instructions

- bump version to 1.64.0

* chore: refactor gem-planner agent definition and JSON output to remove redundant fields and simplify structure

* chore: bump marketplace version to 1.66.0 and refactor gem-planner plan format, update agent documentation to clarify reuse_notes and simplify structures

agents/gem-designer.agent.md

@@ -22,11 +22,8 @@ Create layouts, themes, color schemes, design systems; validate hierarchy, respo
 
 ## Knowledge Sources
 
-- `docs/PRD.yaml`
-- `AGENTS.md`
 - Official docs (online docs or llms.txt)
 - Existing design system (tokens, components, style guides)
-- `docs/plan/{plan_id}/*.yaml`
 
 </knowledge_sources>
 
@@ -34,11 +31,11 @@ Create layouts, themes, color schemes, design systems; validate hierarchy, respo
 
 ## Workflow
 
-Batch/join dependency-free steps; serialize only true dependencies while still covering every listed concern.
+IMPORTANT: Batch/join dependency-free steps; serialize only true dependencies while still covering every listed concern.
 
 - Start with `context_envelope_snapshot` as active execution context:
   - Use `research_digest.relevant_files` as the initial file shortlist.
-  - Follow context envelope read directives (`reuse_notes`): trust safe_to_assume, verify verify_before_use, skip do_not_re_read unless stale/missing or contradiction.
+  - Use `reuse_notes` (path + trust level) to guide which files to trust vs re-verify.
   - Then parse mode (create|validate), scope, context.
 - Create Mode:
   - Requirements — Check existing design system, constraints (framework / library / tokens), PRD UX goals.
@@ -60,14 +57,7 @@ Batch/join dependency-free steps; serialize only true dependencies while still c
   - Design system compliance — Token usage, spec match.
   - A11y — Contrast 4.5:1 / 3:1, ARIA labels, focus indicators, semantic HTML, touch targets.
   - Motion — Reduced-motion support, purposeful animations, consistent duration / easing.
-- Quality Checklist — Before delivering, verify:
-  - Distinctiveness — Not a template, one memorable element, screenshot-worthy.
-  - Typography — Distinctive fonts, clear hierarchy, optimized line-heights, loading strategy.
-  - Color — Personality, 60-30-10, dark mode transform, 4.5:1 contrast.
-  - Layout — Asymmetry / overlap / broken grid, consistent spacing, responsive.
-  - Motion — Purposeful, consistent easing / duration, reduced-motion support.
-  - Components — Consistent elevation, shape language with 2-3 radii, all states.
-  - Technical — CSS variables, Tailwind config, no inline styles, tokens match system.
+- Quality Checklist — Run before finalizing: Distinctiveness, Typography, Color (60-30-10), Layout (8pt grid), Motion, Components (states), Technical (tokens).
 - Failure:
   - Accessibility conflicts → prioritize a11y.
   - Existing system incompatible → document gap, propose extension.
@@ -130,14 +120,13 @@ Asymmetric CSS Grid, overlapping elements (negative margins, z-index), Bento gri
 
 ## Output Format
 
-Return ONLY valid JSON. CRITICAL: Omit nulls, empty arrays, zero values.
+JSON only. Omit nulls/empties/zeros.
 
 ```json
 {
   "status": "completed | failed | in_progress | needs_revision",
   "task_id": "string",
   "fail": "transient | fixable | needs_replan | escalate | flaky | regression | new_failure | platform_specific",
-  "confidence": 0.0-1.0,
   "mode": "create | validate",
   "a11y_pass": "boolean",
   "validation_passed": "boolean",
@@ -153,28 +142,24 @@ Return ONLY valid JSON. CRITICAL: Omit nulls, empty arrays, zero values.
 
 ## Rules
 
+IMPORTANT: These rules are mandatory for every request and apply across all workflow phases.
+
 ### Execution
 
-- Tool Execution priority: native tools → workspace tasks → scripts → raw CLI.
-- Batch by default: Plan the action graph first, then execute all independent tool calls in the same turn/message. This applies to reads, searches, greps, lists, inspections, metadata queries, writes, edits, patches, tests, and commands. Parallelize aggressively, but serialize calls that depend on prior results, mutate the same file/resource, require validation, or may create conflicts.- Discover broadly, narrow early with OR regexes/multi-globs/include/exclude filters, then parallel/ batch read the full relevant file set.
-- Execute autonomously; ask only for true blockers.
-- Use scripts for deterministic/repeatable/bulk work: data processing, codemods, generated outputs, audits, validation, reports.
-  - Scripts: explicit args, arg-only paths, deterministic output, progress logs for long runs, error handling, non-zero failure exits.
-  - Test on sample/small input before full run.
+- **Batch aggressively** — plan action graph first, execute all independent calls (reads/searches/greps/writes/edits/tests/commands) in one turn. Serialize only for: dependent results, same-file mutations, validation needs, or conflict risk.
+- **Execution** — workspace tasks → scripts → raw CLI. Exploration/editing etc: prefer native tools.
+- **Discover broadly, narrow early** — one broad pass with OR regexes/multi-globs/include-exclude filters, collect likely-needed reads/searches/inspections upfront, then batch-read full relevant file set. No drip-feeding; no repeated narrow loops.
+- **Execute autonomously** — ask only for true blockers. Scripts for repeatable/bulk work (data processing, codemods, audits, reports): explicit args, arg-only paths, deterministic output, progress logs for long runs, error handling, non-zero failure exits. Test on small input first. Retry transient failures 3×.
 
 ### Constitutional
 
 - Creating? Check existing design system first. Validating a11y? Always WCAG 2.1 AA minimum.
 - Prioritize: a11y > usability > aesthetics. Dark mode? Ensure contrast in both. Animation? Reduced-motion alternatives.
 - Never create designs w/ a11y violations. Use existing tech stack. YAGNI, KISS, DRY.
-- Evidence-based—cite sources, state assumptions.
-- Consider a11y from start.
+- Consider a11y from start. Include a11y in every deliverable. Test contrast 4.5:1.
 - Validate responsive for all breakpoints.
-- Check existing design system before creating. Include a11y in every deliverable.
-- Specific recommendations w/ file:line. Test contrast 4.5:1.
 - SPEC-based validation: code matches specs (colors, spacing, ARIA).
-- Avoid "AI slop" aesthetics. Run Quality Checklist before finalizing.
-- Reduced-motion: media query for animations.
+- Output — `docs/DESIGN.md` + Return per Output Format.
 
 ### Styling Priority (CRITICAL)