diff --git a/AGENTS.md b/AGENTS.md
index 0194a8d7..2338365c 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,7 +1,7 @@
 # PROJECT KNOWLEDGE BASE
 
-**Generated:** 2026-01-13T14:45:00+09:00
-**Commit:** e47b5514
+**Generated:** 2026-01-15T14:53:00+09:00
+**Commit:** 89fa9ff1
 **Branch:** dev
 
 ## OVERVIEW
@@ -13,16 +13,15 @@ OpenCode plugin implementing Claude Code/AmpCode features. Multi-model agent orc
 ```
 oh-my-opencode/
 ├── src/
-│   ├── agents/        # AI agents (7+): Sisyphus, oracle, librarian, explore, frontend, document-writer, multimodal-looker, prometheus, metis, momus
+│   ├── agents/        # AI agents (10+): Sisyphus, oracle, librarian, explore, frontend, document-writer, multimodal-looker, prometheus, metis, momus
 │   ├── hooks/         # 22+ lifecycle hooks - see src/hooks/AGENTS.md
 │   ├── tools/         # LSP, AST-Grep, Grep, Glob, session mgmt - see src/tools/AGENTS.md
 │   ├── features/      # Claude Code compat layer - see src/features/AGENTS.md
-│   ├── auth/          # Google Antigravity OAuth - see src/auth/AGENTS.md
 │   ├── shared/        # Cross-cutting utilities - see src/shared/AGENTS.md
 │   ├── cli/           # CLI installer, doctor - see src/cli/AGENTS.md
 │   ├── mcp/           # MCP configs: context7, grep_app, websearch
-│   ├── config/        # Zod schema (12k lines), TypeScript types
-│   └── index.ts       # Main plugin entry (563 lines)
+│   ├── config/        # Zod schema, TypeScript types
+│   └── index.ts       # Main plugin entry (580 lines)
 ├── script/            # build-schema.ts, publish.ts, generate-changelog.ts
 ├── assets/            # JSON schema
 └── dist/              # Build output (ESM + .d.ts)
@@ -39,7 +38,6 @@ oh-my-opencode/
 | Add skill | `src/features/builtin-skills/` | Create skill dir with SKILL.md |
 | LSP behavior | `src/tools/lsp/` | client.ts (connection), tools.ts (handlers) |
 | AST-Grep | `src/tools/ast-grep/` | napi.ts for @ast-grep/napi binding |
-| Google OAuth | `src/auth/antigravity/` | OAuth plugin for Google/Gemini models |
 | Config schema | `src/config/schema.ts` | Zod schema, run `bun run build:schema` after changes |
 | Claude Code compat | `src/features/claude-code-*-loader/` | Command, skill, agent, mcp loaders |
 | Background agents | `src/features/background-agent/` | manager.ts for task management |
@@ -50,7 +48,7 @@ oh-my-opencode/
 | Shared utilities | `src/shared/` | Cross-cutting utilities |
 | Slash commands | `src/hooks/auto-slash-command/` | Auto-detect and execute `/command` patterns |
 | Ralph Loop | `src/hooks/ralph-loop/` | Self-referential dev loop until completion |
-| Orchestrator | `src/hooks/sisyphus-orchestrator/` | Main orchestration hook (677 lines) |
+| Orchestrator | `src/hooks/sisyphus-orchestrator/` | Main orchestration hook (684 lines) |
 
 ## TDD (Test-Driven Development)
 
@@ -83,7 +81,7 @@ oh-my-opencode/
 - **Build**: `bun build` (ESM) + `tsc --emitDeclarationOnly`
 - **Exports**: Barrel pattern in index.ts; explicit named exports for tools/hooks
 - **Naming**: kebab-case directories, createXXXHook/createXXXTool factories
-- **Testing**: BDD comments `#given/#when/#then`, TDD workflow (RED-GREEN-REFACTOR), 82 test files
+- **Testing**: BDD comments `#given/#when/#then`, TDD workflow (RED-GREEN-REFACTOR), 80+ test files
 - **Temperature**: 0.1 for code agents, max 0.3
 
 ## ANTI-PATTERNS (THIS PROJECT)
@@ -140,7 +138,7 @@ bun run typecheck      # Type check
 bun run build          # ESM + declarations + schema
 bun run rebuild        # Clean + Build
 bun run build:schema   # Schema only
-bun test               # Run tests (82 test files, 2559+ BDD assertions)
+bun test               # Run tests (80+ test files, 2500+ BDD assertions)
 ```
 
 ## DEPLOYMENT
@@ -157,26 +155,23 @@ bun test               # Run tests (82 test files, 2559+ BDD assertions)
 
 - **ci.yml**: Parallel test/typecheck, build verification, auto-commit schema on master, rolling `next` draft release
 - **publish.yml**: Manual workflow_dispatch, version bump, changelog, OIDC npm publish
-- **sisyphus-agent.yml**: Agent-in-CI for automated issue handling via `@sisyphus-dev-ai` mentions
 
 ## COMPLEXITY HOTSPOTS
 
 | File | Lines | Description |
 |------|-------|-------------|
-| `src/agents/orchestrator-sisyphus.ts` | 1486 | Orchestrator agent, 7-section delegation, accumulated wisdom |
+| `src/agents/orchestrator-sisyphus.ts` | 1485 | Orchestrator agent, 7-section delegation, accumulated wisdom |
 | `src/features/builtin-skills/skills.ts` | 1230 | Skill definitions (frontend-ui-ux, playwright) |
-| `src/agents/prometheus-prompt.ts` | 988 | Planning agent, interview mode, multi-agent validation |
-| `src/auth/antigravity/fetch.ts` | 798 | Token refresh, multi-account rotation, endpoint fallback |
-| `src/auth/antigravity/thinking.ts` | 755 | Thinking block extraction, signature management |
-| `src/cli/config-manager.ts` | 725 | JSONC parsing, multi-level config, env detection |
-| `src/hooks/sisyphus-orchestrator/index.ts` | 677 | Orchestrator hook impl |
+| `src/agents/prometheus-prompt.ts` | 991 | Planning agent, interview mode, multi-agent validation |
+| `src/features/background-agent/manager.ts` | 928 | Task lifecycle, concurrency |
+| `src/cli/config-manager.ts` | 730 | JSONC parsing, multi-level config, env detection |
+| `src/hooks/sisyphus-orchestrator/index.ts` | 684 | Orchestrator hook impl |
+| `src/tools/sisyphus-task/tools.ts` | 667 | Category-based task delegation |
 | `src/agents/sisyphus.ts` | 643 | Main Sisyphus prompt |
 | `src/tools/lsp/client.ts` | 632 | LSP protocol, JSON-RPC |
-| `src/features/background-agent/manager.ts` | 825 | Task lifecycle, concurrency |
-| `src/auth/antigravity/response.ts` | 598 | Response transformation, streaming |
-| `src/tools/sisyphus-task/tools.ts` | 583 | Category-based task delegation |
-| `src/index.ts` | 563 | Main plugin, all hook/tool init |
-| `src/hooks/anthropic-context-window-limit-recovery/executor.ts` | 555 | Multi-stage recovery |
+| `src/features/builtin-commands/templates/refactor.ts` | 619 | Refactoring command template |
+| `src/index.ts` | 580 | Main plugin, all hook/tool init |
+| `src/hooks/anthropic-context-window-limit-recovery/executor.ts` | 554 | Multi-stage recovery |
 
 ## MCP ARCHITECTURE
 
@@ -187,14 +182,14 @@ Three-tier MCP system:
 
 ## CONFIG SYSTEM
 
-- **Zod validation**: `src/config/schema.ts` (12k lines)
+- **Zod validation**: `src/config/schema.ts`
 - **JSONC support**: Comments and trailing commas
 - **Multi-level**: User (`~/.config/opencode/`) → Project (`.opencode/`)
 - **CLI doctor**: Validates config and reports errors
 
 ## NOTES
 
-- **Testing**: Bun native test (`bun test`), BDD-style `#given/#when/#then`, 82 test files
+- **Testing**: Bun native test (`bun test`), BDD-style `#given/#when/#then`, 80+ test files
 - **OpenCode**: Requires >= 1.0.150
 - **Multi-lang docs**: README.md (EN), README.ko.md (KO), README.ja.md (JA), README.zh-cn.md (ZH-CN)
 - **Config**: `~/.config/opencode/oh-my-opencode.json` (user) or `.opencode/oh-my-opencode.json` (project)
diff --git a/src/agents/AGENTS.md b/src/agents/AGENTS.md
index e1efd964..86862d6d 100644
--- a/src/agents/AGENTS.md
+++ b/src/agents/AGENTS.md
@@ -6,20 +6,21 @@ AI agent definitions for multi-model orchestration, delegating tasks to speciali
 ## STRUCTURE
 ```
 agents/
-├── orchestrator-sisyphus.ts # Orchestrator agent (1486 lines) - 7-section delegation, wisdom
+├── orchestrator-sisyphus.ts # Orchestrator agent (1485 lines) - 7-section delegation, wisdom
 ├── sisyphus.ts              # Main Sisyphus prompt (643 lines)
 ├── sisyphus-junior.ts       # Junior variant for delegated tasks
 ├── oracle.ts                # Strategic advisor (GPT-5.2)
 ├── librarian.ts             # Multi-repo research (GLM-4.7-free)
 ├── explore.ts               # Fast codebase grep (Grok Code)
-├── frontend-ui-ux-engineer.ts  # UI generation (Gemini 3 Pro)
-├── document-writer.ts       # Technical docs (Gemini 3 Pro)
+├── frontend-ui-ux-engineer.ts  # UI generation (Gemini 3 Pro Preview)
+├── document-writer.ts       # Technical docs (Gemini 3 Pro Preview)
 ├── multimodal-looker.ts     # PDF/image analysis (Gemini 3 Flash)
-├── prometheus-prompt.ts     # Planning agent prompt (988 lines) - interview mode
+├── prometheus-prompt.ts     # Planning agent prompt (991 lines) - interview mode
 ├── metis.ts                 # Plan Consultant agent - pre-planning analysis
 ├── momus.ts                 # Plan Reviewer agent - plan validation
 ├── build-prompt.ts          # Shared build agent prompt
 ├── plan-prompt.ts           # Shared plan agent prompt
+├── sisyphus-prompt-builder.ts # Factory for orchestrator prompts
 ├── types.ts                 # AgentModelConfig interface
 ├── utils.ts                 # createBuiltinAgents(), getAgentName()
 └── index.ts                 # builtinAgents export
@@ -28,15 +29,15 @@ agents/
 ## AGENT MODELS
 | Agent | Default Model | Purpose |
 |-------|---------------|---------|
-| Sisyphus | claude-opus-4-5 | Primary orchestrator. 32k extended thinking budget. |
+| Sisyphus | anthropic/claude-opus-4-5 | Primary orchestrator. 32k extended thinking budget. |
 | oracle | openai/gpt-5.2 | High-IQ debugging, architecture, strategic consultation. |
-| librarian | glm-4.7-free | Multi-repo analysis, docs research, GitHub examples. |
-| explore | grok-code | Fast contextual grep. Fallbacks: Gemini-3-Flash, Haiku-4-5. |
-| frontend-ui-ux | gemini-3-pro | Production-grade UI/UX generation and styling. |
-| document-writer | gemini-3-pro | Technical writing, guides, API documentation. |
-| Prometheus | claude-opus-4-5 | Strategic planner. Interview mode, orchestrates Metis/Momus. |
-| Metis | claude-sonnet-4-5 | Plan Consultant. Pre-planning risk/requirement analysis. |
-| Momus | claude-sonnet-4-5 | Plan Reviewer. Validation and quality enforcement. |
+| librarian | opencode/glm-4.7-free | Multi-repo analysis, docs research, GitHub examples. |
+| explore | opencode/grok-code | Fast contextual grep. Fallbacks: Gemini-3-Flash, Haiku-4-5. |
+| frontend-ui-ux | google/gemini-3-pro-preview | Production-grade UI/UX generation and styling. |
+| document-writer | google/gemini-3-pro-preview | Technical writing, guides, API documentation. |
+| Prometheus | anthropic/claude-opus-4-5 | Strategic planner. Interview mode, orchestrates Metis/Momus. |
+| Metis | anthropic/claude-sonnet-4-5 | Plan Consultant. Pre-planning risk/requirement analysis. |
+| Momus | anthropic/claude-sonnet-4-5 | Plan Reviewer. Validation and quality enforcement. |
 
 ## HOW TO ADD AN AGENT
 1. Create `src/agents/my-agent.ts` exporting `AgentConfig`.
diff --git a/src/cli/AGENTS.md b/src/cli/AGENTS.md
index 25f02b33..ff408341 100644
--- a/src/cli/AGENTS.md
+++ b/src/cli/AGENTS.md
@@ -6,17 +6,16 @@ CLI for oh-my-opencode: interactive installer, health diagnostics (doctor), runt
 ## STRUCTURE
 ```
 cli/
-├── index.ts              # Commander.js entry, subcommand routing (184 lines)
-├── install.ts            # Interactive TUI installer (436 lines)
-├── config-manager.ts     # JSONC parsing, env detection (725 lines)
+├── index.ts              # Commander.js entry, subcommand routing (146 lines)
+├── install.ts            # Interactive TUI installer (462 lines)
+├── config-manager.ts     # JSONC parsing, env detection (730 lines)
 ├── types.ts              # CLI-specific types
-├── commands/             # CLI subcommands (auth.ts)
 ├── doctor/               # Health check system
 │   ├── index.ts          # Doctor command entry
 │   ├── runner.ts         # Health check orchestration
 │   ├── constants.ts      # Check categories
 │   ├── types.ts          # Check result interfaces
-│   └── checks/           # 10+ check modules (17+ individual checks)
+│   └── checks/           # 10 check modules (14 individual checks)
 ├── get-local-version/    # Version detection
 └── run/                  # OpenCode session launcher
     ├── completion.ts     # Completion logic
@@ -28,16 +27,17 @@ cli/
 |---------|---------|
 | `install` | Interactive setup wizard with subscription detection |
 | `doctor` | Environment health checks (LSP, Auth, Config, Deps) |
-| `run` | Launch OpenCode session with event handling |
-| `auth` | Manage authentication providers |
+| `run` | Launch OpenCode session with todo/background completion enforcement |
+| `get-local-version` | Detect and return local plugin version & update status |
 
 ## DOCTOR CHECKS
-17+ checks in `doctor/checks/`:
-- `version.ts`: OpenCode >= 1.0.150
+14 checks in `doctor/checks/`:
+- `version.ts`: OpenCode >= 1.0.150 & plugin update status
 - `config.ts`: Plugin registration & JSONC validity
-- `dependencies.ts`: bun, node, git, gh-cli
+- `dependencies.ts`: AST-Grep (CLI/NAPI), Comment Checker
 - `auth.ts`: Anthropic, OpenAI, Google (Antigravity)
 - `lsp.ts`, `mcp.ts`: Tool connectivity checks
+- `gh.ts`: GitHub CLI availability
 
 ## CONFIG-MANAGER
 - **JSONC**: Supports comments and trailing commas via `parseJsonc`
diff --git a/src/features/AGENTS.md b/src/features/AGENTS.md
index 835d62d1..5bd154cc 100644
--- a/src/features/AGENTS.md
+++ b/src/features/AGENTS.md
@@ -6,13 +6,13 @@ Claude Code compatibility layer + core feature modules. Commands, skills, agents
 ## STRUCTURE
 ```
 features/
-├── background-agent/           # Task lifecycle, notifications (825 lines manager.ts)
+├── background-agent/           # Task lifecycle, notifications (928 lines manager.ts)
 ├── boulder-state/              # Boulder state persistence
 ├── builtin-commands/           # Built-in slash commands
 │   └── templates/              # start-work, refactor, init-deep, ralph-loop
 ├── builtin-skills/             # Built-in skills (1230 lines skills.ts)
 │   ├── git-master/             # Atomic commits, rebase, history search
-│   ├── playwright/             # Browser automation skill
+│   ├── playwright              # Browser automation skill
 │   └── frontend-ui-ux/         # Designer-turned-developer skill
 ├── claude-code-agent-loader/   # ~/.claude/agents/*.md
 ├── claude-code-command-loader/ # ~/.claude/commands/*.md
@@ -24,8 +24,7 @@ features/
 ├── opencode-skill-loader/      # Skills from OpenCode + Claude paths
 ├── skill-mcp-manager/          # MCP servers in skill YAML
 ├── task-toast-manager/         # Task toast notifications
-├── hook-message-injector/      # Inject messages into conversation
-└── context-injector/           # Context collection and injection
+└── hook-message-injector/      # Inject messages into conversation
 ```
 
 ## LOADER PRIORITY
diff --git a/src/hooks/AGENTS.md b/src/hooks/AGENTS.md
index 9b6106e3..7a24a794 100644
--- a/src/hooks/AGENTS.md
+++ b/src/hooks/AGENTS.md
@@ -6,8 +6,9 @@
 ## STRUCTURE
 ```
 hooks/
-├── anthropic-context-window-limit-recovery/  # Auto-summarize at token limit (555 lines)
-├── sisyphus-orchestrator/      # Main orchestration & agent delegation (677 lines)
+├── sisyphus-orchestrator/      # Main orchestration & agent delegation (684 lines)
+├── anthropic-context-window-limit-recovery/  # Auto-summarize at token limit (554 lines)
+├── todo-continuation-enforcer.ts # Force completion of [ ] items (445 lines)
 ├── ralph-loop/                 # Self-referential dev loop (364 lines)
 ├── claude-code-hooks/          # settings.json hook compatibility layer
 ├── comment-checker/            # Prevents AI slop/excessive comments
@@ -23,7 +24,6 @@ hooks/
 ├── start-work/                 # Initializes work sessions (ulw/ulw)
 ├── think-mode/                 # Dynamic thinking budget adjustment
 ├── background-notification/    # OS notification on task completion
-├── todo-continuation-enforcer.ts # Force completion of [ ] items
 └── tool-output-truncator.ts    # Prevents context bloat from verbose tools
 ```
 
diff --git a/src/shared/AGENTS.md b/src/shared/AGENTS.md
index 5d8cf37d..0161968b 100644
--- a/src/shared/AGENTS.md
+++ b/src/shared/AGENTS.md
@@ -7,6 +7,7 @@ Cross-cutting utilities for path resolution, config management, text processing,
 ```
 shared/
 ├── index.ts              # Barrel export
+├── agent-variant.ts      # Agent model/prompt variation logic
 ├── claude-config-dir.ts  # ~/.claude resolution
 ├── command-executor.ts   # Shell exec with variable expansion
 ├── config-errors.ts      # Global error tracking
@@ -14,23 +15,31 @@ shared/
 ├── data-path.ts          # XDG data directory
 ├── deep-merge.ts         # Type-safe recursive merge
 ├── dynamic-truncator.ts  # Token-aware truncation
+├── external-plugin-detector.ts # Detect marketplace plugins
 ├── file-reference-resolver.ts  # @filename syntax
 ├── file-utils.ts         # Symlink, markdown detection
+├── first-message-variant.ts    # Initial prompt variations
 ├── frontmatter.ts        # YAML frontmatter parsing
 ├── hook-disabled.ts      # Check if hook disabled
 ├── jsonc-parser.ts       # JSON with Comments
 ├── logger.ts             # File-based logging
 ├── migration.ts          # Legacy name compat (omo → Sisyphus)
 ├── model-sanitizer.ts    # Normalize model names
+├── opencode-config-dir.ts # ~/.config/opencode resolution
+├── opencode-version.ts   # Version comparison logic
 ├── pattern-matcher.ts    # Tool name matching
+├── permission-compat.ts  # Legacy permission mapping
+├── session-cursor.ts     # Track message history pointer
 ├── snake-case.ts         # Case conversion
-└── tool-name.ts          # PascalCase normalization
+├── tool-name.ts          # PascalCase normalization
+└── zip-extractor.ts      # Plugin installation utility
 ```
 
 ## WHEN TO USE
 | Task | Utility |
 |------|---------|
 | Find ~/.claude | `getClaudeConfigDir()` |
+| Find ~/.config/opencode | `getOpenCodeConfigDir()` |
 | Merge configs | `deepMerge(base, override)` |
 | Parse user files | `parseJsonc()` |
 | Check hook enabled | `isHookDisabled(name, list)` |
@@ -38,6 +47,9 @@ shared/
 | Resolve @file | `resolveFileReferencesInText()` |
 | Execute shell | `resolveCommandsInText()` |
 | Legacy names | `migrateLegacyAgentNames()` |
+| Version check | `isOpenCodeVersionAtLeast(version)` |
+| Map permissions | `normalizePermission()` |
+| Track session | `SessionCursor` |
 
 ## CRITICAL PATTERNS
 ```typescript
@@ -49,10 +61,14 @@ const final = deepMerge(deepMerge(defaults, userConfig), projectConfig)
 
 // Safe JSONC parsing for user-edited files
 const { config, error } = parseJsoncSafe(content)
+
+// Version-gated features
+if (isOpenCodeVersionAtLeast('1.0.150')) { /* ... */ }
 ```
 
 ## ANTI-PATTERNS
-- Hardcoding paths (use `getClaudeConfigDir`, `getUserConfigPath`)
+- Hardcoding paths (use `getClaudeConfigDir`, `getOpenCodeConfigDir`)
 - Using `JSON.parse` for user configs (always use `parseJsonc`)
 - Ignoring output size (large tool outputs MUST use `dynamicTruncate`)
-- Manual case conversion (use `toSnakeCase`, `normalizeToolName`)
+- Manual version parsing (use `opencode-version.ts` utilities)
+- Raw permission checks (use `permission-compat.ts`)
diff --git a/src/tools/AGENTS.md b/src/tools/AGENTS.md
index ee73fed9..277f4eb1 100644
--- a/src/tools/AGENTS.md
+++ b/src/tools/AGENTS.md
@@ -1,7 +1,7 @@
 # TOOLS KNOWLEDGE BASE
 
 ## OVERVIEW
-Custom tools extending agent capabilities: LSP (11 tools), AST-aware search/replace, background tasks, and multimodal analysis.
+Custom tools extending agent capabilities: LSP (7 tools), AST-aware search/replace, background tasks, and multimodal analysis.
 
 ## STRUCTURE
 ```
@@ -20,11 +20,11 @@ tools/
 │   ├── tools.ts        # Tool implementations
 │   └── config.ts, types.ts, utils.ts
 ├── session-manager/    # OpenCode session history management
-├── sisyphus-task/      # Category-based delegation (583 lines)
+├── sisyphus-task/      # Category-based delegation (667 lines)
 ├── skill/              # Skill loading/execution
 ├── skill-mcp/          # Skill-embedded MCP invocation
 ├── slashcommand/       # Slash command execution
-└── index.ts            # builtinTools export (82 lines)
+└── index.ts            # builtinTools export (75 lines)
 ```
 
 ## TOOL CATEGORIES
@@ -46,7 +46,7 @@ tools/
 ## LSP SPECIFICS
 - **Lifecycle**: Lazy initialization on first call; auto-shutdown on idle.
 - **Config**: Merges `opencode.json` and `oh-my-opencode.json`.
-- **Capability**: Supports full LSP spec including `codeAction/resolve` and `prepareRename`.
+- **Capability**: Supports full LSP spec including `rename` and `prepareRename`.
 
 ## AST-GREP SPECIFICS
 - **Precision**: Uses tree-sitter for structural matching (avoids regex pitfalls).