release: v2.9.1

🤖 Generated with assistance of OhMyOpenCode (https://github.com/code-yeongyu/oh-my-opencode)

AGENTS.md

@@ -1,7 +1,7 @@
 # PROJECT KNOWLEDGE BASE
 
-**Generated:** 2025-12-28T19:26:00+09:00
-**Commit:** 122e918
+**Generated:** 2025-12-31T14:05:00+09:00
+**Commit:** 502e9f5
 **Branch:** dev
 
 ## OVERVIEW
@@ -20,7 +20,8 @@ oh-my-opencode/
 │   ├── features/      # Claude Code compatibility - see src/features/AGENTS.md
 │   ├── config/        # Zod schema, TypeScript types
 │   ├── auth/          # Google Antigravity OAuth (antigravity/)
-│   ├── shared/        # Utilities: deep-merge, pattern-matcher, logger, etc.
+│   ├── shared/        # Utilities: deep-merge, pattern-matcher, logger, etc. - see src/shared/AGENTS.md
+│   ├── cli/           # CLI installer, doctor, run - see src/cli/AGENTS.md
 │   └── index.ts       # Main plugin entry (OhMyOpenCodePlugin)
 ├── script/            # build-schema.ts, publish.ts, generate-changelog.ts
 ├── assets/            # JSON schema
@@ -34,7 +35,7 @@ oh-my-opencode/
 | Add agent | `src/agents/` | Create .ts, add to builtinAgents in index.ts, update types.ts |
 | Add hook | `src/hooks/` | Create dir with createXXXHook(), export from index.ts |
 | Add tool | `src/tools/` | Dir with index/types/constants/tools.ts, add to builtinTools |
-| Add MCP | `src/mcp/` | Create config, add to index.ts |
+| Add MCP | `src/mcp/` | Create config, add to index.ts and types.ts |
 | 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 models |
@@ -42,6 +43,9 @@ oh-my-opencode/
 | Claude Code compat | `src/features/claude-code-*-loader/` | Command, skill, agent, mcp loaders |
 | Background agents | `src/features/background-agent/` | manager.ts for task management |
 | Interactive terminal | `src/tools/interactive-bash/` | tmux session management |
+| CLI installer | `src/cli/install.ts` | Interactive TUI installation |
+| Doctor checks | `src/cli/doctor/checks/` | Health checks for environment |
+| Shared utilities | `src/shared/` | Cross-cutting utilities |
 
 ## CONVENTIONS
 
@@ -64,6 +68,8 @@ oh-my-opencode/
 - **Year 2024**: NEVER use 2024 in code/prompts (use current year)
 - **Rush completion**: Never mark tasks complete without verification
 - **Over-exploration**: Stop searching when sufficient context found
+- **High temperature**: Don't use >0.3 for code-related agents
+- **Broad tool access**: Prefer explicit `include` over unrestricted access
 
 ## UNIQUE STYLES
 
@@ -109,8 +115,19 @@ bun test               # Run tests
 
 ## CI PIPELINE
 
-- **ci.yml**: Parallel test/typecheck, build verification, auto-commit schema on master
+- **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/index.ts` | 690 | Main plugin orchestration, all hook/tool initialization |
+| `src/hooks/anthropic-context-window-limit-recovery/executor.ts` | 670 | Session compaction, multi-stage recovery pipeline |
+| `src/cli/config-manager.ts` | 669 | JSONC parsing, environment detection, installation |
+| `src/auth/antigravity/fetch.ts` | 621 | Token refresh, URL rewriting, endpoint fallbacks |
+| `src/tools/lsp/client.ts` | 611 | LSP protocol, stdin/stdout buffering, JSON-RPC |
 
 ## NOTES
 
@@ -119,3 +136,4 @@ bun test               # Run tests
 - **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)
 - **Trusted deps**: @ast-grep/cli, @ast-grep/napi, @code-yeongyu/comment-checker
+- **JSONC support**: Config files support comments (`// comment`, `/* block */`) and trailing commas

README.ja.md

@@ -759,7 +759,19 @@ Oh My OpenCode は以下の場所からフックを読み込んで実行しま
 }
 ```
 
-各エージェントでサポートされるオプション：`model`, `temperature`, `top_p`, `prompt`, `tools`, `disable`, `description`, `mode`, `color`, `permission`。
+各エージェントでサポートされるオプション：`model`, `temperature`, `top_p`, `prompt`, `prompt_append`, `tools`, `disable`, `description`, `mode`, `color`, `permission`。
+
+`prompt_append` を使用すると、デフォルトのシステムプロンプトを置き換えずに追加の指示を付け加えられます：
+
+```json
+{
+  "agents": {
+    "librarian": {
+      "prompt_append": "Emacs Lisp のドキュメント検索には常に elisp-dev-mcp を使用してください。"
+    }
+  }
+}
+```
 
 `Sisyphus` (メインオーケストレーター) と `build` (デフォルトエージェント) も同じオプションで設定をオーバーライドできます。
 

README.ko.md

@@ -752,7 +752,19 @@ Schema 자동 완성이 지원됩니다:
 }
 ```
 
-각 에이전트에서 지원하는 옵션: `model`, `temperature`, `top_p`, `prompt`, `tools`, `disable`, `description`, `mode`, `color`, `permission`.
+각 에이전트에서 지원하는 옵션: `model`, `temperature`, `top_p`, `prompt`, `prompt_append`, `tools`, `disable`, `description`, `mode`, `color`, `permission`.
+
+`prompt_append`를 사용하면 기본 시스템 프롬프트를 대체하지 않고 추가 지시사항을 덧붙일 수 있습니다:
+
+```json
+{
+  "agents": {
+    "librarian": {
+      "prompt_append": "Emacs Lisp 문서 조회 시 항상 elisp-dev-mcp를 사용하세요."
+    }
+  }
+}
+```
 
 `Sisyphus` (메인 오케스트레이터)와 `build` (기본 에이전트)도 동일한 옵션으로 설정을 오버라이드할 수 있습니다.
 

README.md

@@ -2,6 +2,9 @@
 >
 > *"I aim to spark a software revolution by creating a world where agent-generated code is indistinguishable from human code, yet capable of achieving vastly more. I have poured my personal time, passion, and funds into this journey, and I will continue to do so."*
 >
+> [![The Orchestrator is coming](./.github/assets/orchestrator-sisyphus.png)](https://x.com/justsisyphus/status/2006250634354548963)
+> > **The Orchestrator is coming. This Week. [Get notified on X](https://x.com/justsisyphus/status/2006250634354548963)**
+>
 > Be with us!
 >
 > | [<img alt="Discord link" src="https://img.shields.io/discord/1452487457085063218?color=5865F2&label=discord&labelColor=black&logo=discord&logoColor=white&style=flat-square" width="156px" />](https://discord.gg/PWpXmbhF) | Join our [Discord community](https://discord.gg/PWpXmbhF) to connect with contributors and fellow `oh-my-opencode` users. |
@@ -791,7 +794,19 @@ Override built-in agent settings:
 }
 ```
 
-Each agent supports: `model`, `temperature`, `top_p`, `prompt`, `tools`, `disable`, `description`, `mode`, `color`, `permission`.
+Each agent supports: `model`, `temperature`, `top_p`, `prompt`, `prompt_append`, `tools`, `disable`, `description`, `mode`, `color`, `permission`.
+
+Use `prompt_append` to add extra instructions without replacing the default system prompt:
+
+```json
+{
+  "agents": {
+    "librarian": {
+      "prompt_append": "Always use the elisp-dev-mcp for Emacs Lisp documentation lookups."
+    }
+  }
+}
+```
 
 You can also override settings for `Sisyphus` (the main orchestrator) and `build` (the default agent) using the same options.
 

README.zh-cn.md

@@ -763,7 +763,19 @@ Agent 爽了，你自然也爽。但我还想直接让你爽。
 }
 ```
 
-每个 Agent 能改这些：`model`、`temperature`、`top_p`、`prompt`、`tools`、`disable`、`description`、`mode`、`color`、`permission`。
+每个 Agent 能改这些：`model`、`temperature`、`top_p`、`prompt`、`prompt_append`、`tools`、`disable`、`description`、`mode`、`color`、`permission`。
+
+用 `prompt_append` 可以在默认系统提示后面追加额外指令，不用替换整个提示：
+
+```json
+{
+  "agents": {
+    "librarian": {
+      "prompt_append": "查 Emacs Lisp 文档时用 elisp-dev-mcp。"
+    }
+  }
+}
+```
 
 `Sisyphus`（主编排器）和 `build`（默认 Agent）也能改。
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "oh-my-opencode",
-  "version": "2.9.0",
+  "version": "2.9.1",
   "description": "OpenCode plugin - custom agents (oracle, librarian) and enhanced features",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

signatures/cla.json

@@ -103,6 +103,46 @@
       "created_at": "2025-12-30T12:04:59Z",
       "repoId": 1108837393,
       "pullRequestNo": 349
+    },
+    {
+      "name": "junhoyeo",
+      "id": 32605822,
+      "comment_id": 3701585491,
+      "created_at": "2025-12-31T07:00:36Z",
+      "repoId": 1108837393,
+      "pullRequestNo": 375
+    },
+    {
+      "name": "gtg7784",
+      "id": 32065632,
+      "comment_id": 3701688739,
+      "created_at": "2025-12-31T08:05:25Z",
+      "repoId": 1108837393,
+      "pullRequestNo": 377
+    },
+    {
+      "name": "ul8",
+      "id": 589744,
+      "comment_id": 3701705644,
+      "created_at": "2025-12-31T08:16:46Z",
+      "repoId": 1108837393,
+      "pullRequestNo": 378
+    },
+    {
+      "name": "eudresfs",
+      "id": 66638312,
+      "comment_id": 3702622517,
+      "created_at": "2025-12-31T18:03:32Z",
+      "repoId": 1108837393,
+      "pullRequestNo": 385
+    },
+    {
+      "name": "vsumner",
+      "id": 308886,
+      "comment_id": 3702872360,
+      "created_at": "2025-12-31T20:40:20Z",
+      "repoId": 1108837393,
+      "pullRequestNo": 388
     }
   ]
 }

src/agents/sisyphus-prompt-builder.ts

@@ -11,6 +11,12 @@ export interface AvailableTool {
   category: "lsp" | "ast" | "search" | "session" | "command" | "other"
 }
 
+export interface AvailableSkill {
+  name: string
+  description: string
+  location: "user" | "project" | "plugin"
+}
+
 export function categorizeTools(toolNames: string[]): AvailableTool[] {
   return toolNames.map((name) => {
     let category: AvailableTool["category"] = "other"
@@ -51,27 +57,73 @@ function formatToolsForPrompt(tools: AvailableTool[]): string {
   return parts.join(", ")
 }
 
-export function buildKeyTriggersSection(agents: AvailableAgent[]): string {
+export function buildKeyTriggersSection(agents: AvailableAgent[], skills: AvailableSkill[] = []): string {
   const keyTriggers = agents
     .filter((a) => a.metadata.keyTrigger)
     .map((a) => `- ${a.metadata.keyTrigger}`)
 
-  if (keyTriggers.length === 0) return ""
+  const skillTriggers = skills
+    .filter((s) => s.description)
+    .map((s) => `- **Skill \`${s.name}\`**: ${extractTriggerFromDescription(s.description)}`)
+
+  const allTriggers = [...keyTriggers, ...skillTriggers]
+
+  if (allTriggers.length === 0) return ""
 
   return `### Key Triggers (check BEFORE classification):
-${keyTriggers.join("\n")}
+
+**BLOCKING: Check skills FIRST before any action.**
+If a skill matches, invoke it IMMEDIATELY via \`skill\` tool.
+
+${allTriggers.join("\n")}
 - **GitHub mention (@mention in issue/PR)** → This is a WORK REQUEST. Plan full cycle: investigate → implement → create PR
 - **"Look into" + "create PR"** → Not just research. Full implementation cycle expected.`
 }
 
-export function buildToolSelectionTable(agents: AvailableAgent[], tools: AvailableTool[] = []): string {
+function extractTriggerFromDescription(description: string): string {
+  const triggerMatch = description.match(/Trigger[s]?[:\s]+([^.]+)/i)
+  if (triggerMatch) return triggerMatch[1].trim()
+
+  const activateMatch = description.match(/Activate when[:\s]+([^.]+)/i)
+  if (activateMatch) return activateMatch[1].trim()
+
+  const useWhenMatch = description.match(/Use (?:this )?when[:\s]+([^.]+)/i)
+  if (useWhenMatch) return useWhenMatch[1].trim()
+
+  return description.split(".")[0] || description
+}
+
+export function buildToolSelectionTable(
+  agents: AvailableAgent[],
+  tools: AvailableTool[] = [],
+  skills: AvailableSkill[] = []
+): string {
   const rows: string[] = [
-    "### Tool Selection:",
+    "### Tool & Skill Selection:",
+    "",
+    "**Priority Order**: Skills → Direct Tools → Agents",
     "",
-    "| Tool | Cost | When to Use |",
-    "|------|------|-------------|",
   ]
 
+  // Skills section (highest priority)
+  if (skills.length > 0) {
+    rows.push("#### Skills (INVOKE FIRST if matching)")
+    rows.push("")
+    rows.push("| Skill | When to Use |")
+    rows.push("|-------|-------------|")
+    for (const skill of skills) {
+      const shortDesc = extractTriggerFromDescription(skill.description)
+      rows.push(`| \`${skill.name}\` | ${shortDesc} |`)
+    }
+    rows.push("")
+  }
+
+  // Tools and Agents table
+  rows.push("#### Tools & Agents")
+  rows.push("")
+  rows.push("| Resource | Cost | When to Use |")
+  rows.push("|----------|------|-------------|")
+
   if (tools.length > 0) {
     const toolsDisplay = formatToolsForPrompt(tools)
     rows.push(`| ${toolsDisplay} | FREE | Not Complex, Scope Clear, No Implicit Assumptions |`)
@@ -88,7 +140,7 @@ export function buildToolSelectionTable(agents: AvailableAgent[], tools: Availab
   }
 
   rows.push("")
-  rows.push("**Default flow**: explore/librarian (background) + tools → oracle (if required)")
+  rows.push("**Default flow**: skill (if match) → explore/librarian (background) + tools → oracle (if required)")
 
   return rows.join("\n")
 }

src/agents/sisyphus.ts

@@ -1,6 +1,6 @@
 import type { AgentConfig } from "@opencode-ai/sdk"
 import { isGptModel } from "./types"
-import type { AvailableAgent, AvailableTool } from "./sisyphus-prompt-builder"
+import type { AvailableAgent, AvailableTool, AvailableSkill } from "./sisyphus-prompt-builder"
 import {
   buildKeyTriggersSection,
   buildToolSelectionTable,
@@ -36,10 +36,25 @@ Named by [YeonGyu Kim](https://github.com/code-yeongyu).
 
 </Role>`
 
-const SISYPHUS_PHASE0_STEP1_3 = `### Step 1: Classify Request Type
+const SISYPHUS_PHASE0_STEP1_3 = `### Step 0: Check Skills FIRST (BLOCKING)
+
+**Before ANY classification or action, scan for matching skills.**
+
+\`\`\`
+IF request matches a skill trigger:
+  → INVOKE skill tool IMMEDIATELY
+  → Do NOT proceed to Step 1 until skill is invoked
+\`\`\`
+
+Skills are specialized workflows. When relevant, they handle the task better than manual orchestration.
+
+---
+
+### Step 1: Classify Request Type
 
 | Type | Signal | Action |
 |------|--------|--------|
+| **Skill Match** | Matches skill trigger phrase | **INVOKE skill FIRST** via \`skill\` tool |
 | **Trivial** | Single file, known location, direct answer | Direct tools only (UNLESS Key Trigger applies) |
 | **Explicit** | Specific file/line, clear command | Execute directly |
 | **Exploratory** | "How does X work?", "Find Y" | Fire explore (1-3) + tools in parallel |
@@ -375,9 +390,13 @@ const SISYPHUS_SOFT_GUIDELINES = `## Soft Guidelines
 
 `
 
-function buildDynamicSisyphusPrompt(availableAgents: AvailableAgent[], availableTools: AvailableTool[] = []): string {
-  const keyTriggers = buildKeyTriggersSection(availableAgents)
-  const toolSelection = buildToolSelectionTable(availableAgents, availableTools)
+function buildDynamicSisyphusPrompt(
+  availableAgents: AvailableAgent[],
+  availableTools: AvailableTool[] = [],
+  availableSkills: AvailableSkill[] = []
+): string {
+  const keyTriggers = buildKeyTriggersSection(availableAgents, availableSkills)
+  const toolSelection = buildToolSelectionTable(availableAgents, availableTools, availableSkills)
   const exploreSection = buildExploreSection(availableAgents)
   const librarianSection = buildLibrarianSection(availableAgents)
   const frontendSection = buildFrontendSection(availableAgents)
@@ -456,12 +475,14 @@ function buildDynamicSisyphusPrompt(availableAgents: AvailableAgent[], available
 export function createSisyphusAgent(
   model: string = DEFAULT_MODEL,
   availableAgents?: AvailableAgent[],
-  availableToolNames?: string[]
+  availableToolNames?: string[],
+  availableSkills?: AvailableSkill[]
 ): AgentConfig {
   const tools = availableToolNames ? categorizeTools(availableToolNames) : []
+  const skills = availableSkills ?? []
   const prompt = availableAgents
-    ? buildDynamicSisyphusPrompt(availableAgents, tools)
-    : buildDynamicSisyphusPrompt([], tools)
+    ? buildDynamicSisyphusPrompt(availableAgents, tools, skills)
+    : buildDynamicSisyphusPrompt([], tools, skills)
 
   const base = {
     description:

src/cli/AGENTS.md

@@ -0,0 +1,93 @@
+# CLI KNOWLEDGE BASE
+
+## OVERVIEW
+
+Command-line interface for oh-my-opencode. Interactive installer, health diagnostics (doctor), and runtime commands. Entry point: `bunx oh-my-opencode`.
+
+## STRUCTURE
+
+```
+cli/
+├── index.ts              # Commander.js entry point, subcommand routing
+├── install.ts            # Interactive TUI installer
+├── config-manager.ts     # Config detection, parsing, merging (669 lines)
+├── types.ts              # CLI-specific types
+├── doctor/               # Health check system
+│   ├── index.ts          # Doctor command entry
+│   ├── constants.ts      # Check categories, descriptions
+│   ├── types.ts          # Check result interfaces
+│   └── checks/           # 17 individual health checks
+├── get-local-version/    # Version detection utility
+│   ├── index.ts
+│   └── formatter.ts
+└── run/                  # OpenCode session launcher
+    ├── index.ts
+    └── completion.test.ts
+```
+
+## CLI COMMANDS
+
+| Command | Purpose | Key File |
+|---------|---------|----------|
+| `install` | Interactive setup wizard | `install.ts` |
+| `doctor` | Environment health checks | `doctor/index.ts` |
+| `run` | Launch OpenCode session | `run/index.ts` |
+
+## DOCTOR CHECKS
+
+17 checks in `doctor/checks/`:
+
+| Check | Validates |
+|-------|-----------|
+| `version.ts` | OpenCode version >= 1.0.150 |
+| `config.ts` | Plugin registered in opencode.json |
+| `bun.ts` | Bun runtime available |
+| `node.ts` | Node.js version compatibility |
+| `git.ts` | Git installed |
+| `anthropic-auth.ts` | Claude authentication |
+| `openai-auth.ts` | OpenAI authentication |
+| `google-auth.ts` | Google/Gemini authentication |
+| `lsp-*.ts` | Language server availability |
+| `mcp-*.ts` | MCP server connectivity |
+
+## INSTALLATION FLOW
+
+1. **Detection**: Find existing `opencode.json` / `opencode.jsonc`
+2. **TUI Prompts**: Claude subscription? ChatGPT? Gemini?
+3. **Config Generation**: Build `oh-my-opencode.json` based on answers
+4. **Plugin Registration**: Add to `plugin` array in opencode.json
+5. **Auth Guidance**: Instructions for `opencode auth login`
+
+## CONFIG-MANAGER
+
+The largest file (669 lines) handles:
+
+- **JSONC support**: Parses comments and trailing commas
+- **Multi-source detection**: User (~/.config/opencode/) + Project (.opencode/)
+- **Schema validation**: Zod-based config validation
+- **Migration**: Handles legacy config formats
+- **Error collection**: Aggregates parsing errors for doctor
+
+## HOW TO ADD A DOCTOR CHECK
+
+1. Create `src/cli/doctor/checks/my-check.ts`:
+   ```typescript
+   import type { DoctorCheck } from "../types"
+   
+   export const myCheck: DoctorCheck = {
+     name: "my-check",
+     category: "environment",
+     check: async () => {
+       // Return { status: "pass" | "warn" | "fail", message: string }
+     }
+   }
+   ```
+2. Add to `src/cli/doctor/checks/index.ts`
+3. Update `constants.ts` if new category
+
+## ANTI-PATTERNS (CLI)
+
+- **Blocking prompts in non-TTY**: Check `process.stdout.isTTY` before TUI
+- **Hardcoded paths**: Use shared utilities for config paths
+- **Ignoring JSONC**: User configs may have comments
+- **Silent failures**: Doctor checks must return clear status/message

src/shared/AGENTS.md

@@ -0,0 +1,82 @@
+# SHARED UTILITIES KNOWLEDGE BASE
+
+## OVERVIEW
+
+Cross-cutting utility functions used across agents, hooks, tools, and features. Path resolution, config management, text processing, and Claude Code compatibility helpers.
+
+## STRUCTURE
+
+```
+shared/
+├── index.ts              # Barrel export (import { x } from "../shared")
+├── claude-config-dir.ts  # Resolve ~/.claude directory
+├── command-executor.ts   # Shell command execution with variable expansion
+├── config-errors.ts      # Global config error tracking
+├── config-path.ts        # User/project config path resolution
+├── data-path.ts          # XDG data directory resolution
+├── deep-merge.ts         # Type-safe recursive object merging
+├── dynamic-truncator.ts  # Token-aware output truncation
+├── file-reference-resolver.ts  # @filename syntax resolution
+├── file-utils.ts         # Symlink resolution, markdown detection
+├── frontmatter.ts        # YAML frontmatter parsing
+├── hook-disabled.ts      # Check if hook is disabled in config
+├── jsonc-parser.ts       # JSON with Comments parsing
+├── logger.ts             # File-based logging to OS temp
+├── migration.ts          # Legacy name compatibility (omo -> Sisyphus)
+├── model-sanitizer.ts    # Normalize model names
+├── pattern-matcher.ts    # Tool name matching with wildcards
+├── snake-case.ts         # Case conversion for objects
+└── tool-name.ts          # Normalize tool names to PascalCase
+```
+
+## UTILITY CATEGORIES
+
+| Category | Utilities | Used By |
+|----------|-----------|---------|
+| Path Resolution | `getClaudeConfigDir`, `getUserConfigPath`, `getProjectConfigPath`, `getDataDir` | Features, Hooks |
+| Config Management | `deepMerge`, `parseJsonc`, `isHookDisabled`, `configErrors` | index.ts, CLI |
+| Text Processing | `resolveCommandsInText`, `resolveFileReferencesInText`, `parseFrontmatter` | Commands, Rules |
+| Output Control | `dynamicTruncate` | Tools (Grep, LSP) |
+| Normalization | `transformToolName`, `objectToSnakeCase`, `sanitizeModelName` | Hooks, Agents |
+| Compatibility | `migration.ts` | Config loading |
+
+## WHEN TO USE WHAT
+
+| Task | Utility | Notes |
+|------|---------|-------|
+| Find Claude Code configs | `getClaudeConfigDir()` | Never hardcode `~/.claude` |
+| Merge settings (default → user → project) | `deepMerge(base, override)` | Arrays replaced, objects merged |
+| Parse user config files | `parseJsonc()` | Supports comments and trailing commas |
+| Check if hook should run | `isHookDisabled(name, disabledHooks)` | Respects `disabled_hooks` config |
+| Truncate large tool output | `dynamicTruncate(text, budget, reserved)` | Token-aware, prevents overflow |
+| Resolve `@file` references | `resolveFileReferencesInText()` | maxDepth=3 prevents infinite loops |
+| Execute shell commands | `resolveCommandsInText()` | Supports `!`\`command\`\` syntax |
+| Handle legacy agent names | `migrateLegacyAgentNames()` | `omo` → `Sisyphus` |
+
+## CRITICAL PATTERNS
+
+### Dynamic Truncation
+```typescript
+import { dynamicTruncate } from "../shared"
+// Keep 50% headroom, max 50k tokens
+const output = dynamicTruncate(result, remainingTokens, 0.5)
+```
+
+### Deep Merge Priority
+```typescript
+const final = deepMerge(defaults, userConfig)
+final = deepMerge(final, projectConfig) // Project wins
+```
+
+### Safe JSONC Parsing
+```typescript
+const { config, error } = parseJsoncSafe(content)
+if (error) return fallback
+```
+
+## ANTI-PATTERNS (SHARED)
+
+- **Hardcoding paths**: Use `getClaudeConfigDir()`, `getUserConfigPath()`
+- **Manual JSON.parse**: Use `parseJsonc()` for user files (comments allowed)
+- **Ignoring truncation**: Large outputs MUST use `dynamicTruncate`
+- **Direct string concat for configs**: Use `deepMerge` for proper priority