Splitting tokenscope.ts into multiple files

Page 1 of 4

User 01:25 PM anthropic/claude-opus-4-5

I want to understand if its possible to split up the tokenscope.ts file into multiple files without breaking anything related to the plugin? Its fine if I have to make changes to install.sh or something like that but I would very much like it to not break any functionallity or anything like that. you can look at sst/opencode or opencode.ai for documentation and code if you need to.

Assistant 01:25 PM claude-opus-4-5
step-start

I'll help you understand if it's possible to split up the tokenscope.ts file into multiple files. Let me first examine the current structure of your plugin to understand how it works and what dependencies exist.

📦 Batch (4 calls) 4 read -
  • 1 📄 read /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/tokenscope.ts
  • 2 📄 read /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/install.sh
  • 3 📄 read /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/package.json
  • 4 📄 read /home/ramtinj/personal-workspace/opencode-tokenscope/README.md
Combined Output (3 lines) 
All 4 tools executed successfully.

Keep using the batch tool for optimal performance in your next response!
📄 tokenscope.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/tokenscope.ts 1344 lines +
📄 install.sh /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/install.sh 202 lines +
📄 package.json /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/package.json 12 lines - 
<file>
00001| {
00002|   "name": "opencode-tokenscope",
00003|   "version": "1.2.1",
00004|   "description": "OpenCode plugin for detailed token usage analysis",
00005|   "type": "module",
00006|   "dependencies": {}
00007| }
00008| 

(End of file - total 8 lines)
</file>
📄 README.md /home/ramtinj/personal-workspace/opencode-tokenscope/README.md 454 lines +
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Assistant 01:25 PM claude-opus-4-5
step-start

Now let me fetch the OpenCode plugin documentation to understand how plugins work and what constraints exist:

👥 Docs Fetch OpenCode plugin docs -
Prompt (9 lines) 
I need to understand how OpenCode plugins work, specifically:
1. How are plugins loaded and discovered?
2. Can a plugin consist of multiple TypeScript files or does it need to be a single file?
3. What is the expected file structure for plugins?
4. Are there any limitations on imports between files in a plugin?

Please fetch the OpenCode documentation from https://opencode.ai/docs and look for plugin-related documentation. Focus on plugin architecture, file structure, and any constraints on how plugins can be organized.

Return a detailed summary of what you find about plugin structure and whether multi-file plugins are supported.
Result (183 lines) 
This confirms multi-file plugins work. Now I have all the information I need. Let me compile a comprehensive answer.

---

## OpenCode Plugin Documentation Summary

Based on my research of the [official OpenCode documentation](https://opencode.ai/docs/plugins), the OpenCode GitHub source code, and real-world community plugin examples, here's a detailed summary of how OpenCode plugins work:

---

### 1. Plugin Loading and Discovery

**Loading Mechanism:**
Plugins are loaded from two locations:
1. **Project-level**: `.opencode/plugin/` directory in your project
2. **Global-level**: `~/.config/opencode/plugin/`

**Discovery Process** (from the [source code](https://github.com/sst/opencode/blob/dev/packages/opencode/src/plugin/index.ts)):
```typescript
// OpenCode scans plugin directories and loads all JavaScript/TypeScript modules
for (let plugin of plugins) {
  const mod = await import(plugin)
  for (const [_name, fn] of Object.entries<PluginInstance>(mod)) {
    const init = await fn(input)
    hooks.push(init)
  }
}
```

**Key Points:**
- OpenCode uses Bun's runtime to execute plugins directly
- Plugins can be installed from npm packages (e.g., `"opencode-copilot-auth@0.0.9"`)
- Or loaded from local files using `file://` prefix
- **Each exported function** that matches the `Plugin` type signature gets initialized

---

### 2. Multi-File Plugin Support: ✅ YES, Supported!

**The documentation does NOT explicitly address this**, but based on real-world evidence, **multi-file plugins are fully supported**:

**Evidence 1: Opencode-Context-Analysis-Plugin**
```typescript
// .opencode/plugin/context-usage.ts
import type { TokenModel } from "./tokenizer-registry.mjs"
import { resolveTokenModel, TokenizerResolutionError } from "./tokenizer-registry.mjs"
```

**Evidence 2: OpenAgents telegram-notify.ts**
```typescript
// .opencode/plugin/telegram-notify.ts
import { SimpleTelegramBot } from "./lib/telegram-bot"
```

**How It Works:**
- Plugins run in Bun's runtime which supports standard ESM imports
- You can import from:
  - Relative files (`./lib/utils.ts`, `./tokenizer-registry.mjs`)
  - External npm packages (`@opencode-ai/plugin`, `zod`)
  - Node.js built-ins (`path`, `fs/promises`, `url`)

---

### 3. Expected File Structure

**Basic Single-File Plugin:**
```
.opencode/
└── plugin/
    └── my-plugin.ts       # Single file with exported Plugin function(s)
```

**Multi-File Plugin Structure (supported):**
```
.opencode/
└── plugin/
    ├── my-plugin.ts       # Main entry point (exports Plugin functions)
    ├── lib/
    │   ├── utils.ts       # Helper utilities
    │   └── telegram-bot.ts
    ├── tokenizer-registry.mjs
    ├── vendor/            # External dependencies
    │   └── node_modules/
    ├── models.json        # Data files
    └── package.json       # Optional: for managing dependencies
```

**Plugin Entry Point Structure:**
```typescript
// my-plugin.ts
import type { Plugin } from "@opencode-ai/plugin"
import { tool } from "@opencode-ai/plugin"
import { MyHelper } from "./lib/utils"  // ✅ Multi-file imports work

export const MyPlugin: Plugin = async ({ project, client, $, directory, worktree }) => {
  return {
    // Hook implementations
    event: async ({ event }) => { /* ... */ },
    "tool.execute.before": async (input, output) => { /* ... */ },
    tool: {
      mytool: tool({ /* ... */ })
    }
  }
}
```

---

### 4. Import Limitations and Constraints

**What DOES work:**

| Import Type | Supported | Example |
|-------------|-----------|---------|
| Relative TypeScript/JS | ✅ | `import { util } from "./lib/utils"` |
| Relative `.mjs` files | ✅ | `import { fn } from "./tokenizer-registry.mjs"` |
| External npm packages | ✅ | `import { z } from "zod"` |
| Node.js built-ins | ✅ | `import path from "path"` |
| JSON imports | ✅ | `import data from "./models.json"` |
| Dynamic imports | ✅ | `await import(pathToFileURL(entryPath).href)` |

**Constraints to be aware of:**

1. **Bun Runtime Requirement**: Plugins run under Bun, so you must use Bun-compatible code:
   - ESM syntax (`import`/`export`)
   - Bun's shell API (`$`) is available

2. **Package Management**: If your plugin has external dependencies:
   - OpenCode auto-installs `@opencode-ai/plugin` in the plugin directory
   - For other deps, you need a `package.json` and run `bun install`
   - Or bundle dependencies in a `vendor/` directory (like the Context Analysis plugin does)

3. **Entry Point Exports**: Only **exported** functions matching the `Plugin` type signature are loaded:
   ```typescript
   // ✅ This gets loaded - exported and async function returning hooks
   export const MyPlugin: Plugin = async (ctx) => { return { /* hooks */ } }
   
   // ❌ Not loaded - helper function, not a Plugin
   export function helperFunction() { }
   
   // ❌ Not loaded - not exported
   const InternalPlugin: Plugin = async (ctx) => { return {} }
   ```

4. **File Extensions**: Both `.ts` and `.js` work. For explicit ESM, you can use `.mjs`

---

### Summary Comparison

| Question | Answer |
|----------|--------|
| Can plugins have multiple files? | **Yes** - Use standard ESM imports |
| Is there a required file structure? | **No** - Any structure works, just export `Plugin` functions |
| Where are plugins loaded from? | `.opencode/plugin/` (project) or `~/.config/opencode/plugin/` (global) |
| Can I import npm packages? | **Yes** - Need `package.json` and `bun install` |
| What runtime environment? | **Bun** - Full Bun API available including `$` shell |

---

### Recommendations for Your Plugin

Looking at your current `opencode-tokenscope` plugin, it's a **single-file** plugin (~1340 lines). You have a few options:

1. **Keep it single-file** (current) - Works fine, but harder to maintain
2. **Split into multiple files** - Fully supported! You could organize like:
   ```
   plugin/
   ├── tokenscope.ts          # Main entry + tool export
   ├── lib/
   │   ├── tokenizer.ts       # TokenizerManager class
   │   ├── analyzer.ts        # TokenAnalysisEngine class
   │   ├── formatter.ts       # OutputFormatter class
   │   └── types.ts           # All interfaces
   ├── models.json
   └── package.json
   ```

Would you like me to help refactor the plugin into a multi-file structure?

<task_metadata>
session_id: ses_4e853b879ffeUM8Cpo7YZTK2xH
</task_metadata>
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Assistant 01:26 PM claude-opus-4-5
step-start

Based on my analysis of your plugin code and the OpenCode documentation, here's my assessment:

## Summary: Yes, You Can Split tokenscope.ts Into Multiple Files

The good news: OpenCode plugins fully support multi-file structures. Plugins run in Bun's runtime which supports standard ESM imports, so you can organize your code however you like.

### Current Structure Analysis

Your tokenscope.ts file (~1340 lines) contains:
- Types/Interfaces (lines 12-175): ~160 lines
- Model Configuration (lines 177-249): ~70 lines
- TokenizerManager class (lines 253-375): ~120 lines
- ModelResolver class (lines 379-448): ~70 lines
- ContentCollector class (lines 452-587): ~135 lines
- TokenAnalysisEngine class (lines 591-746): ~155 lines
- CostCalculator class (lines 750-802): ~50 lines
- SubagentAnalyzer class (lines 806-933): ~125 lines
- OutputFormatter class (lines 938-1259): ~320 lines
- Plugin Export (lines 1263-1339): ~75 lines

### Proposed Multi-File Structure


text
plugin/
├── tokenscope.ts         # Main entry point (~100 lines)
├── lib/
│   ├── types.ts          # All interfaces/types
│   ├── config.ts         # Model maps, pricing, constants
│   ├── tokenizer.ts      # TokenizerManager class
│   ├── resolver.ts       # ModelResolver class
│   ├── collector.ts      # ContentCollector class
│   ├── analyzer.ts       # TokenAnalysisEngine class
│   ├── cost.ts           # CostCalculator class
│   ├── subagent.ts       # SubagentAnalyzer class
│   └── formatter.ts      # OutputFormatter class
├── models.json           # (unchanged)
├── package.json          # (unchanged)
└── vendor/               # (unchanged)

### What You'd Need to Change in install.sh

The install.sh would need minor modifications:

1. Download additional files - Add the new lib/*.ts files to the FILES array
2. Create lib directory - Add mkdir -p "$OPENCODE_DIR/plugin/lib"
3. Update file paths - Adjust download/move logic for nested files

### Will Anything Break?

| Concern | Will it break? | Notes |
|---------|----------------|-------|
| Plugin loading | No | OpenCode only cares about the exported Plugin function |
| Import resolution | No | Bun handles ESM imports from relative paths |
| Vendor dependencies | No | The VENDOR_ROOT path uses import.meta.url, which works correctly |
| models.json loading | No | Same import.meta.url approach works |
| /tokenscope command | No | command/tokenscope.md stays the same |

### Questions Before Proceeding

Before I propose a detailed implementation, I have a few questions:

1. How granular do you want the split?
- Option A: Just a few files (types, core logic, formatter)
- Option B: One file per class (more modular, ~9 files)
- Option C: Something in between

2. Do you want to maintain backward compatibility?
- Should the single-file version still work, with multi-file as an alternative?
- Or fully replace with multi-file structure?

3. Are there specific parts you want isolated? For example:
- Types only (for easier maintenance/sharing)
- Output formatting (if you want to customize display)
- Pricing/models (already somewhat separate with models.json)

Let me know your preferences and I can provide a concrete refactoring plan with the exact file splits and install.sh changes needed.

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User 01:29 PM anthropic/claude-opus-4-5

1 I think option A is best here. 2 No this should be a full replacement. 3 I think where it makes sense to split it up into logically separete files so its easier to maintain and build upon is the best. Make me a implementation plan and dont forget the install.sh changes needed also

Assistant 01:29 PM claude-opus-4-5
step-start

I'll create a comprehensive implementation plan for splitting up the tokenscope.ts file into logically separate modules.

📋 Todo List 0/4 done 1 in progress 3 pending -
  • → Create implementation plan for multi-file plugin structure high
  • ○ Define file structure and module responsibilities high
  • ○ Plan install.sh modifications high
  • ○ Document migration steps and testing approach medium
step-finish
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Assistant 01:29 PM claude-opus-4-5
step-start
📋 Todo List 1/4 done 1 in progress 2 pending -
  • ✓ Create implementation plan for multi-file plugin structure high
  • → Define file structure and module responsibilities high
  • ○ Plan install.sh modifications high
  • ○ Document migration steps and testing approach medium
step-finish
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Assistant 01:29 PM claude-opus-4-5
step-start

---

# Implementation Plan: Multi-File Plugin Structure

## 1. Proposed File Structure


text
plugin/
├── tokenscope.ts              # Main entry point - Plugin export only (~80 lines)
├── lib/
│   ├── types.ts               # All interfaces and type definitions (~165 lines)
│   ├── config.ts              # Constants, model maps, pricing loader (~95 lines)
│   ├── tokenizer.ts           # TokenizerManager class (~125 lines)
│   ├── analyzer.ts            # ModelResolver, ContentCollector, TokenAnalysisEngine (~320 lines)
│   └── formatter.ts           # CostCalculator, SubagentAnalyzer, OutputFormatter (~510 lines)
├── models.json                # (unchanged)
├── package.json               # (unchanged)
├── install.sh                 # (modified to download new files)
└── vendor/                    # (unchanged - created by npm install)
    └── node_modules/

Total: 6 TypeScript files (1 main + 5 in lib/)

---

## 2. Module Responsibilities & Contents

### plugin/tokenscope.ts (~80 lines)
Purpose: Main entry point - only exports the Plugin


typescript
// Imports
import type { Plugin } from "@opencode-ai/plugin"
import { tool } from "@opencode-ai/plugin"
import path from "path"
import fs from "fs/promises"


// Import from lib modules
import type { SessionMessage } from "./lib/types"
import { DEFAULT_ENTRY_LIMIT, loadModelPricing } from "./lib/config"
import { TokenizerManager } from "./lib/tokenizer"
import { ModelResolver, ContentCollector, TokenAnalysisEngine } from "./lib/analyzer"
import { CostCalculator, SubagentAnalyzer, OutputFormatter } from "./lib/formatter"


// Plugin export (the tool definition and execute function)
export const TokenAnalyzerPlugin: Plugin = async ({ client }) => { ... }

---

### plugin/lib/types.ts (~165 lines)
Purpose: All TypeScript interfaces and type definitions

Contains:
- SessionMessage, SessionMessageInfo, SessionMessagePart
- TokenUsage, ToolState
- CategoryEntry, CategorySummary, CategoryEntrySource
- TokenAnalysis, TokenModel, TokenizerSpec
- CostEstimate, ModelPricing
- SubagentSummary, SubagentAnalysis, ChildSession
- Type guard functions: isToolPart(), isReasoningPart(), isTextPart()

Exports:


typescript
// All interfaces
export interface SessionMessage { ... }
export interface TokenAnalysis { ... }
// etc.


// Type guards
export function isToolPart(part: SessionMessagePart): part is { ... }
export function isReasoningPart(part: SessionMessagePart): part is { ... }
export function isTextPart(part: SessionMessagePart): part is { ... }

---

### plugin/lib/config.ts (~95 lines)
Purpose: Constants, model mappings, and pricing configuration

Contains:
- DEFAULT_ENTRY_LIMIT constant
- VENDOR_ROOT path calculation
- OPENAI_MODEL_MAP mapping
- TRANSFORMERS_MODEL_MAP mapping
- PROVIDER_DEFAULTS mapping
- loadModelPricing() function
- Pricing cache management

Exports:


typescript
export const DEFAULT_ENTRY_LIMIT = 3
export const VENDOR_ROOT = path.join(...)
export const OPENAI_MODEL_MAP: Record<string, string> = { ... }
export const TRANSFORMERS_MODEL_MAP: Record<string, string> = { ... }
export const PROVIDER_DEFAULTS: Record<string, TokenizerSpec> = { ... }
export async function loadModelPricing(): Promise<Record<string, ModelPricing>> { ... }

---

### plugin/lib/tokenizer.ts (~125 lines)
Purpose: Token counting with multiple tokenizer backends

Contains:
- TokenizerManager class
- countTokens() - main entry point
- approximateTokenCount() - fallback
- countWithTiktoken() - OpenAI tokenizer
- countWithTransformers() - HuggingFace tokenizer
- loadTiktokenEncoder() - lazy loading
- loadTransformersTokenizer() - lazy loading
- importFromVendor() - vendor dependency loader

Exports:


typescript
export class TokenizerManager {
  async countTokens(content: string, model: TokenModel): Promise<number>
  // ... private methods
}

---

### plugin/lib/analyzer.ts (~320 lines)
Purpose: Core analysis logic - model resolution, content collection, token analysis

Contains:
- ModelResolver class
- resolveTokenModel() - determines tokenizer from messages
- resolveOpenAIModel() - OpenAI-specific resolution
- resolveTransformersModel() - Transformers-specific resolution
- Helper methods: mapOpenAI(), canonicalize()

- ContentCollector class
- collectSystemPrompts() - extracts system prompts
- collectMessageTexts() - extracts user/assistant messages
- collectToolOutputs() - extracts tool results
- collectToolCallCounts() - counts tool invocations
- collectAllToolsCalled() - lists unique tools
- collectReasoningTexts() - extracts reasoning traces
- Helper methods: extractText(), identifySystemPrompt(), capitalize()

- TokenAnalysisEngine class
- analyze() - main analysis orchestration
- buildCategory() - builds category summaries
- applyTelemetryAdjustments() - applies API telemetry data

Exports:


typescript
export class ModelResolver {
  resolveTokenModel(messages: SessionMessage[]): TokenModel
}


export class ContentCollector {
  collectSystemPrompts(messages: SessionMessage[]): CategoryEntrySource[]
  collectMessageTexts(messages: SessionMessage[], role: "user" | "assistant"): CategoryEntrySource[]
  collectToolOutputs(messages: SessionMessage[]): CategoryEntrySource[]
  collectToolCallCounts(messages: SessionMessage[]): Map<string, number>
  collectAllToolsCalled(messages: SessionMessage[]): string[]
  collectReasoningTexts(messages: SessionMessage[]): CategoryEntrySource[]
}


export class TokenAnalysisEngine {
  constructor(tokenizerManager: TokenizerManager, contentCollector: ContentCollector)
  async analyze(sessionID: string, messages: SessionMessage[], tokenModel: TokenModel, entryLimit: number): Promise<TokenAnalysis>
}

---

### plugin/lib/formatter.ts (~510 lines)
Purpose: Cost calculation, subagent analysis, and output formatting

Contains:
- CostCalculator class
- calculateCost() - computes cost estimate
- getPricing() - looks up model pricing
- normalizeModelName() - handles provider/model format

- SubagentAnalyzer class
- analyzeChildSessions() - recursive child session analysis
- analyzeChildSession() - single child analysis
- extractAgentType() - parses agent type from title
- getPricing() - cost calculation for subagents

- OutputFormatter class
- format() - main formatting entry point
- formatVisualOutput() - generates the full report
- formatCategoryBar() - creates ASCII bar charts
- collectTopEntries() - finds top token consumers
- formatNumber() - number formatting utility

Exports:


typescript
export class CostCalculator {
  constructor(pricingData: Record<string, ModelPricing>)
  calculateCost(analysis: TokenAnalysis): CostEstimate
}


export class SubagentAnalyzer {
  constructor(client: any, costCalculator: CostCalculator, pricingData: Record<string, ModelPricing>)
  async analyzeChildSessions(parentSessionID: string): Promise<SubagentAnalysis>
}


export class OutputFormatter {
  constructor(costCalculator: CostCalculator)
  format(analysis: TokenAnalysis): string
}

---

## 3. Dependency Graph


text
tokenscope.ts (main entry)
    │
    ├── lib/types.ts (no dependencies)
    │
    ├── lib/config.ts
    │       └── imports: lib/types.ts
    │
    ├── lib/tokenizer.ts
    │       └── imports: lib/types.ts, lib/config.ts
    │
    ├── lib/analyzer.ts
    │       └── imports: lib/types.ts, lib/config.ts, lib/tokenizer.ts
    │
    └── lib/formatter.ts
            └── imports: lib/types.ts

Import Order (no circular dependencies):
1. types.ts - standalone, no imports from lib
2. config.ts - imports only types.ts
3. tokenizer.ts - imports types.ts, config.ts
4. analyzer.ts - imports types.ts, config.ts, tokenizer.ts
5. formatter.ts - imports types.ts
6. tokenscope.ts - imports all of the above

---

## 4. Install.sh Modifications

📋 Todo List 2/4 done 1 in progress 1 pending -
  • ✓ Create implementation plan for multi-file plugin structure high
  • ✓ Define file structure and module responsibilities high
  • → Plan install.sh modifications high
  • ○ Document migration steps and testing approach medium
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Assistant 01:30 PM claude-opus-4-5
step-start

### Changes Required to install.sh:

#### Change 1: Add lib directory creation (line ~88)


bash
# Before:
mkdir -p "$OPENCODE_DIR/plugin"
mkdir -p "$OPENCODE_DIR/command"


# After:
mkdir -p "$OPENCODE_DIR/plugin"
mkdir -p "$OPENCODE_DIR/plugin/lib"    # NEW
mkdir -p "$OPENCODE_DIR/command"

#### Change 2: Update FILES array (lines ~95-101)


bash
# Before:
FILES=(
    "plugin/tokenscope.ts"
    "plugin/models.json"
    "plugin/package.json"
    "plugin/install.sh"
    "command/tokenscope.md"
)


# After:
FILES=(
    "plugin/tokenscope.ts"
    "plugin/lib/types.ts"
    "plugin/lib/config.ts"
    "plugin/lib/tokenizer.ts"
    "plugin/lib/analyzer.ts"
    "plugin/lib/formatter.ts"
    "plugin/models.json"
    "plugin/package.json"
    "plugin/install.sh"
    "command/tokenscope.md"
)

#### Change 3: Update file download logic (lines ~103-121)


bash
# Before:
for file in "${FILES[@]}"; do
    filename=$(basename "$file")
    dir=$(dirname "$file")
    
    echo_info "Downloading $filename..."
    
    if curl -fsSL "$REPO_URL/raw/main/$file" -o "$TEMP_DIR/$filename" 2>/dev/null; then
        # Move to appropriate directory
        if [ "$dir" = "plugin" ]; then
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/plugin/$filename"
        else
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/command/$filename"
        fi
    # ...


# After:
for file in "${FILES[@]}"; do
    filename=$(basename "$file")
    dir=$(dirname "$file")
    
    echo_info "Downloading $filename..."
    
    if curl -fsSL "$REPO_URL/raw/main/$file" -o "$TEMP_DIR/$filename" 2>/dev/null; then
        # Move to appropriate directory based on path
        if [ "$dir" = "plugin" ]; then
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/plugin/$filename"
        elif [ "$dir" = "plugin/lib" ]; then
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/plugin/lib/$filename"
        else
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/command/$filename"
        fi
    # ...

#### Change 4: Update verification (lines ~150-155)


bash
# Before:
REQUIRED_FILES=(
    "$OPENCODE_DIR/plugin/tokenscope.ts"
    "$OPENCODE_DIR/plugin/models.json"
    "$OPENCODE_DIR/plugin/node_modules/js-tiktoken"
    "$OPENCODE_DIR/plugin/node_modules/@huggingface/transformers"
    "$OPENCODE_DIR/command/tokenscope.md"
)


# After:
REQUIRED_FILES=(
    "$OPENCODE_DIR/plugin/tokenscope.ts"
    "$OPENCODE_DIR/plugin/lib/types.ts"
    "$OPENCODE_DIR/plugin/lib/config.ts"
    "$OPENCODE_DIR/plugin/lib/tokenizer.ts"
    "$OPENCODE_DIR/plugin/lib/analyzer.ts"
    "$OPENCODE_DIR/plugin/lib/formatter.ts"
    "$OPENCODE_DIR/plugin/models.json"
    "$OPENCODE_DIR/plugin/node_modules/js-tiktoken"
    "$OPENCODE_DIR/plugin/node_modules/@huggingface/transformers"
    "$OPENCODE_DIR/command/tokenscope.md"
)

---

## 5. Migration Steps

📋 Todo List 3/4 done 1 in progress -
  • ✓ Create implementation plan for multi-file plugin structure high
  • ✓ Define file structure and module responsibilities high
  • ✓ Plan install.sh modifications high
  • → Document migration steps and testing approach medium
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Tokens: 0 in / 1.2k out Cache: 46.6k read Finish: tool-calls
Assistant 01:30 PM claude-opus-4-5
step-start

### Step-by-Step Implementation Order:

1. Create plugin/lib/ directory

2. Create plugin/lib/types.ts
- Extract all interfaces (lines 12-175)
- Extract type guard functions (lines 43-53)
- No external dependencies

3. Create plugin/lib/config.ts
- Extract constants and maps (lines 7-8, 195-249)
- Extract loadModelPricing() (lines 179-193)
- Import TokenizerSpec, ModelPricing from types.ts

4. Create plugin/lib/tokenizer.ts
- Extract TokenizerManager class (lines 253-375)
- Import TokenModel from types.ts
- Import VENDOR_ROOT from config.ts

5. Create plugin/lib/analyzer.ts
- Extract ModelResolver class (lines 379-448)
- Extract ContentCollector class (lines 452-587)
- Extract TokenAnalysisEngine class (lines 591-746)
- Import types from types.ts
- Import maps from config.ts
- Import TokenizerManager from tokenizer.ts

6. Create plugin/lib/formatter.ts
- Extract CostCalculator class (lines 750-802)
- Extract SubagentAnalyzer class (lines 806-933)
- Extract OutputFormatter class (lines 938-1259)
- Import types from types.ts

7. Refactor plugin/tokenscope.ts
- Keep only the Plugin export (lines 1263-1339)
- Add imports from all lib modules

8. Update plugin/install.sh
- Apply changes from Section 4

9. Update version in plugin/package.json
- Bump to 1.3.0 (breaking change in file structure)

---

## 6. Testing Approach

### Local Testing Before Push:


bash
# 1. Create the new file structure locally
mkdir -p ~/.config/opencode/plugin/lib


# 2. Copy all new files to test location
cp plugin/tokenscope.ts ~/.config/opencode/plugin/
cp plugin/lib/*.ts ~/.config/opencode/plugin/lib/


# 3. Restart OpenCode
# 4. Run /tokenscope and verify output matches previous behavior

### Verification Checklist:

- [ ] Plugin loads without errors
- [ ] /tokenscope command appears in command list
- [ ] Token analysis produces same output format
- [ ] All 5 categories display correctly
- [ ] Tool usage breakdown works
- [ ] Subagent analysis works (if applicable)
- [ ] Cost calculation is accurate
- [ ] File output (token-usage-output.txt) is generated
- [ ] No TypeScript compilation errors
- [ ] install.sh downloads all files correctly
- [ ] install.sh --update works correctly

### Regression Test:

Compare output before and after refactor:


bash
# Before refactor
/tokenscope
cat token-usage-output.txt > before.txt


# After refactor (restart OpenCode)
/tokenscope  
cat token-usage-output.txt > after.txt


# Compare (should be identical except timestamps)
diff before.txt after.txt

---

## 7. Summary Table

| File | Lines | Purpose |
|------|-------|---------|
| tokenscope.ts | ~80 | Plugin entry point, tool registration |
| lib/types.ts | ~165 | All interfaces and type guards |
| lib/config.ts | ~95 | Constants, model maps, pricing loader |
| lib/tokenizer.ts | ~125 | TokenizerManager - token counting |
| lib/analyzer.ts | ~320 | ModelResolver, ContentCollector, TokenAnalysisEngine |
| lib/formatter.ts | ~510 | CostCalculator, SubagentAnalyzer, OutputFormatter |
| Total | ~1295 | (vs 1340 original - slightly less due to consolidated imports) |

---

📋 Todo List 4/4 done -
  • ✓ Create implementation plan for multi-file plugin structure high
  • ✓ Define file structure and module responsibilities high
  • ✓ Plan install.sh modifications high
  • ✓ Document migration steps and testing approach medium
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Assistant 01:30 PM claude-opus-4-5
step-start

## Questions Before Implementation

Do you want me to proceed with implementing this plan? If so, I have a few questions:

1. Version bump: Should I bump to 1.3.0 (indicates structural change) or would you prefer a different version?

2. README updates: Should I update the README to reflect the new file structure in the Architecture section?

3. Start implementation now?: Would you like me to create all the files now, or would you prefer to review/modify this plan first?

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User 01:33 PM anthropic/claude-opus-4-5

testing locally will be very hard forget about that part I will test it myself. I think the plan is great but the costanalysis and subagentanalysis parts should not be in formatter.ts that is a bit weird. 1 yes bump the version. 2 Yes for sure. 3 not yet, update the step by step plan with the new instructions and also create a todo list I can review one last time before we start implementing.

Assistant 01:33 PM claude-opus-4-5
step-start

You're right, having CostCalculator and SubagentAnalyzer in formatter.ts doesn't make logical sense - they're not formatting concerns. Let me revise the plan.

📋 Todo List 0/3 done 1 in progress 2 pending -
  • → Revise file structure - separate CostCalculator and SubagentAnalyzer from formatter high
  • ○ Update step-by-step implementation plan high
  • ○ Create final todo list for implementation review high
step-finish
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Assistant 01:33 PM claude-opus-4-5
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---

# Revised Implementation Plan (v2)

## 1. Updated File Structure


text
plugin/
├── tokenscope.ts              # Main entry point - Plugin export only (~80 lines)
├── lib/
│   ├── types.ts               # All interfaces and type definitions (~165 lines)
│   ├── config.ts              # Constants, model maps, pricing loader (~95 lines)
│   ├── tokenizer.ts           # TokenizerManager class (~125 lines)
│   ├── analyzer.ts            # ModelResolver, ContentCollector, TokenAnalysisEngine (~320 lines)
│   ├── cost.ts                # CostCalculator class (~55 lines) [NEW]
│   ├── subagent.ts            # SubagentAnalyzer class (~130 lines) [NEW]
│   └── formatter.ts           # OutputFormatter class only (~325 lines) [REDUCED]
├── models.json                # (unchanged)
├── package.json               # (version bumped to 1.3.0)
├── install.sh                 # (modified to download new files)
└── vendor/                    # (unchanged - created by npm install)
    └── node_modules/

Total: 8 TypeScript files (1 main + 7 in lib/)

---

## 2. Revised Module Responsibilities

### plugin/lib/cost.ts (~55 lines) [NEW FILE]
Purpose: Cost calculation logic

Contains:
- CostCalculator class
- calculateCost() - computes cost estimate from analysis
- getPricing() - looks up model pricing from data
- normalizeModelName() - handles provider/model format

Exports:


typescript
export class CostCalculator {
  constructor(pricingData: Record<string, ModelPricing>)
  calculateCost(analysis: TokenAnalysis): CostEstimate
}

---

### plugin/lib/subagent.ts (~130 lines) [NEW FILE]
Purpose: Child session analysis for Task tool subagents

Contains:
- SubagentAnalyzer class
- analyzeChildSessions() - recursive child session analysis
- analyzeChildSession() - single child analysis
- extractAgentType() - parses agent type from title
- getPricing() - cost calculation for subagents

Exports:


typescript
export class SubagentAnalyzer {
  constructor(client: any, costCalculator: CostCalculator, pricingData: Record<string, ModelPricing>)
  async analyzeChildSessions(parentSessionID: string): Promise<SubagentAnalysis>
}

---

### plugin/lib/formatter.ts (~325 lines) [REDUCED]
Purpose: Output formatting only - visual report generation

Contains:
- OutputFormatter class
- format() - main formatting entry point
- formatVisualOutput() - generates the full report
- formatCategoryBar() - creates ASCII bar charts
- collectTopEntries() - finds top token consumers
- formatNumber() - number formatting utility

Exports:


typescript
export class OutputFormatter {
  constructor(costCalculator: CostCalculator)
  format(analysis: TokenAnalysis): string
}

---

## 3. Updated Dependency Graph


text
tokenscope.ts (main entry)
    │
    ├── lib/types.ts (no dependencies)
    │
    ├── lib/config.ts
    │       └── imports: lib/types.ts
    │
    ├── lib/tokenizer.ts
    │       └── imports: lib/types.ts, lib/config.ts
    │
    ├── lib/analyzer.ts
    │       └── imports: lib/types.ts, lib/config.ts, lib/tokenizer.ts
    │
    ├── lib/cost.ts
    │       └── imports: lib/types.ts
    │
    ├── lib/subagent.ts
    │       └── imports: lib/types.ts, lib/cost.ts
    │
    └── lib/formatter.ts
            └── imports: lib/types.ts, lib/cost.ts

Import Order (no circular dependencies):
1. types.ts - standalone, no imports from lib
2. config.ts - imports only types.ts
3. tokenizer.ts - imports types.ts, config.ts
4. analyzer.ts - imports types.ts, config.ts, tokenizer.ts
5. cost.ts - imports types.ts
6. subagent.ts - imports types.ts, cost.ts
7. formatter.ts - imports types.ts, cost.ts
8. tokenscope.ts - imports all of the above

---

## 4. Updated install.sh Changes

### Change 1: Add lib directory creation


bash
mkdir -p "$OPENCODE_DIR/plugin"
mkdir -p "$OPENCODE_DIR/plugin/lib"    # NEW
mkdir -p "$OPENCODE_DIR/command"

### Change 2: Updated FILES array


bash
FILES=(
    "plugin/tokenscope.ts"
    "plugin/lib/types.ts"
    "plugin/lib/config.ts"
    "plugin/lib/tokenizer.ts"
    "plugin/lib/analyzer.ts"
    "plugin/lib/cost.ts"
    "plugin/lib/subagent.ts"
    "plugin/lib/formatter.ts"
    "plugin/models.json"
    "plugin/package.json"
    "plugin/install.sh"
    "command/tokenscope.md"
)

### Change 3: Updated file download logic


bash
for file in "${FILES[@]}"; do
    filename=$(basename "$file")
    dir=$(dirname "$file")
    
    echo_info "Downloading $filename..."
    
    if curl -fsSL "$REPO_URL/raw/main/$file" -o "$TEMP_DIR/$filename" 2>/dev/null; then
        if [ "$dir" = "plugin" ]; then
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/plugin/$filename"
        elif [ "$dir" = "plugin/lib" ]; then
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/plugin/lib/$filename"
        else
            mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/command/$filename"
        fi
    # ...

### Change 4: Updated verification


bash
REQUIRED_FILES=(
    "$OPENCODE_DIR/plugin/tokenscope.ts"
    "$OPENCODE_DIR/plugin/lib/types.ts"
    "$OPENCODE_DIR/plugin/lib/config.ts"
    "$OPENCODE_DIR/plugin/lib/tokenizer.ts"
    "$OPENCODE_DIR/plugin/lib/analyzer.ts"
    "$OPENCODE_DIR/plugin/lib/cost.ts"
    "$OPENCODE_DIR/plugin/lib/subagent.ts"
    "$OPENCODE_DIR/plugin/lib/formatter.ts"
    "$OPENCODE_DIR/plugin/models.json"
    "$OPENCODE_DIR/plugin/node_modules/js-tiktoken"
    "$OPENCODE_DIR/plugin/node_modules/@huggingface/transformers"
    "$OPENCODE_DIR/command/tokenscope.md"
)

---

📋 Todo List 1/3 done 1 in progress 1 pending -
  • ✓ Revise file structure - separate CostCalculator and SubagentAnalyzer from formatter high
  • → Update step-by-step implementation plan high
  • ○ Create final todo list for implementation review high
step-finish
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Assistant 01:34 PM claude-opus-4-5
step-start

## 5. Step-by-Step Implementation Plan

### Phase 1: Create lib directory and types
| Step | Action | Details |
|------|--------|---------|
| 1.1 | Create plugin/lib/ directory | New directory for modules |
| 1.2 | Create plugin/lib/types.ts | Extract interfaces (lines 12-175) + type guards (lines 43-53) |

### Phase 2: Create config and tokenizer modules
| Step | Action | Details |
|------|--------|---------|
| 2.1 | Create plugin/lib/config.ts | Extract constants (lines 7-8), model maps (lines 195-249), loadModelPricing() (lines 179-193) |
| 2.2 | Create plugin/lib/tokenizer.ts | Extract TokenizerManager class (lines 253-375) |

### Phase 3: Create analyzer module
| Step | Action | Details |
|------|--------|---------|
| 3.1 | Create plugin/lib/analyzer.ts | Extract ModelResolver (lines 379-448), ContentCollector (lines 452-587), TokenAnalysisEngine (lines 591-746) |

### Phase 4: Create cost and subagent modules
| Step | Action | Details |
|------|--------|---------|
| 4.1 | Create plugin/lib/cost.ts | Extract CostCalculator class (lines 750-802) |
| 4.2 | Create plugin/lib/subagent.ts | Extract SubagentAnalyzer class (lines 806-933) |

### Phase 5: Create formatter module
| Step | Action | Details |
|------|--------|---------|
| 5.1 | Create plugin/lib/formatter.ts | Extract OutputFormatter class (lines 938-1259) |

### Phase 6: Refactor main entry point
| Step | Action | Details |
|------|--------|---------|
| 6.1 | Refactor plugin/tokenscope.ts | Keep only Plugin export (lines 1263-1339), add imports from lib modules |

### Phase 7: Update supporting files
| Step | Action | Details |
|------|--------|---------|
| 7.1 | Update plugin/install.sh | Add lib directory creation, update FILES array, update download logic, update verification |
| 7.2 | Update plugin/package.json | Bump version to 1.3.0 |
| 7.3 | Update README.md | Update Architecture section to reflect new file structure |

---

📋 Todo List 2/3 done 1 in progress -
  • ✓ Revise file structure - separate CostCalculator and SubagentAnalyzer from formatter high
  • ✓ Update step-by-step implementation plan high
  • → Create final todo list for implementation review high
step-finish
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Assistant 01:34 PM claude-opus-4-5
step-start

## 6. Final Implementation Todo List

Here's the todo list for your review before we start implementing:

📋 Todo List 0/12 done 12 pending -
  • ○ Create plugin/lib/ directory high
  • ○ Create lib/types.ts - all interfaces and type guards high
  • ○ Create lib/config.ts - constants, model maps, pricing loader high
  • ○ Create lib/tokenizer.ts - TokenizerManager class high
  • ○ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ○ Create lib/cost.ts - CostCalculator class high
  • ○ Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
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---

## Summary Table (Revised)

| File | Lines | Purpose |
|------|-------|---------|
| tokenscope.ts | ~80 | Plugin entry point, tool registration |
| lib/types.ts | ~165 | All interfaces and type guards |
| lib/config.ts | ~95 | Constants, model maps, pricing loader |
| lib/tokenizer.ts | ~125 | TokenizerManager - token counting |
| lib/analyzer.ts | ~320 | ModelResolver, ContentCollector, TokenAnalysisEngine |
| lib/cost.ts | ~55 | CostCalculator - cost calculation |
| lib/subagent.ts | ~130 | SubagentAnalyzer - child session analysis |
| lib/formatter.ts | ~325 | OutputFormatter - visual report generation |
| Total | ~1295 | 8 files (vs 1 file with 1340 lines) |

---

The todo list above shows all 12 implementation steps. Let me know when you're ready to proceed, or if you'd like any adjustments to the plan!

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User 01:35 PM anthropic/claude-opus-4-5

Great! make sure each step that is done is git commited before going to the next step. Each git commit should be a conventional commit of max 70 chars. THIS IS VERY IMPORTANT. Please start with the plan now.

Assistant 01:35 PM claude-opus-4-5
step-start

I'll start implementing the plan now, committing after each step. Let me begin.

📋 Todo List 0/12 done 1 in progress 11 pending -
  • → Create plugin/lib/ directory high
  • ○ Create lib/types.ts - all interfaces and type guards high
  • ○ Create lib/config.ts - constants, model maps, pricing loader high
  • ○ Create lib/tokenizer.ts - TokenizerManager class high
  • ○ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ○ Create lib/cost.ts - CostCalculator class high
  • ○ Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
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Assistant 01:35 PM claude-opus-4-5
step-start
$ mkdir -p /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib Create plugin/lib directory -
step-finish
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Assistant 01:35 PM claude-opus-4-5
step-start
📝 Created .gitkeep /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/.gitkeep 0 lines 0 B -
step-finish
💾 File changes 1 file 50267738
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/.gitkeep
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Assistant 01:35 PM claude-opus-4-5
step-start
📦 Batch (2 calls) 2 bash -
  • 1 $ bash git -C /home/ramtinj/personal-workspace/opencode-tokenscope status
  • 2 $ bash git -C /home/ramtinj/personal-workspace/opencode-tokenscope log --oneline -5
Combined Output (3 lines) 
All 2 tools executed successfully.

Keep using the batch tool for optimal performance in your next response!
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope status Check git status - 
On branch refactor-the-code
Untracked files:
  (use "git add <file>..." to include in what will be committed)
	plugin/lib/

nothing added to commit but untracked files present (use "git add" to track)
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope log --oneline -5 Check recent commit style - 
f5a9a60 Remove duplicate install.sh, keep only plugin/install.sh
bc33e37 Bump version to 1.2.1
93bd925 Clarify update instructions for different versions
9861778 Document local update script in README
c7ccd31 Add install.sh to plugin folder for easier updates
step-finish
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Assistant 01:35 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/.gitkeep && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: add plugin/lib directory for multi-file structure" Commit lib directory - 
[refactor-the-code 0c28f19] refactor: add plugin/lib directory for multi-file structure
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 plugin/lib/.gitkeep
step-finish
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Assistant 01:36 PM claude-opus-4-5
step-start
📋 Todo List 1/12 done 1 in progress 10 pending -
  • ✓ Create plugin/lib/ directory high
  • → Create lib/types.ts - all interfaces and type guards high
  • ○ Create lib/config.ts - constants, model maps, pricing loader high
  • ○ Create lib/tokenizer.ts - TokenizerManager class high
  • ○ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ○ Create lib/cost.ts - CostCalculator class high
  • ○ Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 59.3k read Finish: tool-calls
Assistant 01:36 PM claude-opus-4-5
step-start

Now creating lib/types.ts with all interfaces and type guards:

📝 Created types.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/types.ts 169 lines 3.7 KB +
step-finish
💾 File changes 1 file 658bdf13
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/types.ts
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Assistant 01:36 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/types.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: extract types and interfaces to lib/types.ts" Commit types.ts - 
[refactor-the-code f95be04] refactor: extract types and interfaces to lib/types.ts
 1 file changed, 168 insertions(+)
 create mode 100644 plugin/lib/types.ts
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Assistant 01:36 PM claude-opus-4-5
step-start
📋 Todo List 2/12 done 1 in progress 9 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • → Create lib/config.ts - constants, model maps, pricing loader high
  • ○ Create lib/tokenizer.ts - TokenizerManager class high
  • ○ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ○ Create lib/cost.ts - CostCalculator class high
  • ○ Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 62.0k read Finish: tool-calls
Assistant 01:36 PM claude-opus-4-5
step-start

Now creating lib/config.ts:

📝 Created config.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/config.ts 86 lines 3.2 KB +
step-finish
💾 File changes 1 file 7ae85016
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/config.ts
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Assistant 01:36 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/config.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: extract config and model maps to lib/config.ts" Commit config.ts - 
[refactor-the-code b244d3a] refactor: extract config and model maps to lib/config.ts
 1 file changed, 85 insertions(+)
 create mode 100644 plugin/lib/config.ts
step-finish
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Assistant 01:37 PM claude-opus-4-5
step-start
📋 Todo List 3/12 done 1 in progress 8 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • → Create lib/tokenizer.ts - TokenizerManager class high
  • ○ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ○ Create lib/cost.ts - CostCalculator class high
  • ○ Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 64.9k read Finish: tool-calls
Assistant 01:37 PM claude-opus-4-5
step-start

Now creating lib/tokenizer.ts:

📝 Created tokenizer.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/tokenizer.ts 132 lines 4.0 KB +
step-finish
💾 File changes 1 file 49becca9
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/tokenizer.ts
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Assistant 01:37 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/tokenizer.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: extract TokenizerManager to lib/tokenizer.ts" Commit tokenizer.ts - 
[refactor-the-code b8a8753] refactor: extract TokenizerManager to lib/tokenizer.ts
 1 file changed, 131 insertions(+)
 create mode 100644 plugin/lib/tokenizer.ts
step-finish
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Assistant 01:37 PM claude-opus-4-5
step-start
📋 Todo List 4/12 done 1 in progress 7 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • → Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ○ Create lib/cost.ts - CostCalculator class high
  • ○ Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 67.6k read Finish: tool-calls
Assistant 01:37 PM claude-opus-4-5
step-start

Now creating lib/analyzer.ts with ModelResolver, ContentCollector, and TokenAnalysisEngine:

📝 Created analyzer.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/analyzer.ts 400 lines 13.6 KB +
step-finish
💾 File changes 1 file 6fb9694d
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/analyzer.ts
Tokens: 0 in / 4.3k out Cache: 67.9k read Finish: tool-calls
Assistant 01:38 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/analyzer.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: extract analysis classes to lib/analyzer.ts" Commit analyzer.ts - 
[refactor-the-code 1dc5297] refactor: extract analysis classes to lib/analyzer.ts
 1 file changed, 399 insertions(+)
 create mode 100644 plugin/lib/analyzer.ts
step-finish
Tokens: 0 in / 139 out Cache: 10.3k read Finish: tool-calls
Assistant 01:38 PM claude-opus-4-5
step-start
📋 Todo List 5/12 done 1 in progress 6 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • → Create lib/cost.ts - CostCalculator class high
  • ○ Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 73.4k read Finish: tool-calls
Assistant 01:38 PM claude-opus-4-5
step-start

Now creating lib/cost.ts:

📝 Created cost.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/cost.ts 58 lines 2.3 KB +
step-finish
💾 File changes 1 file ec6eea82
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/cost.ts
Tokens: 0 in / 848 out Cache: 73.6k read Finish: tool-calls
Assistant 01:39 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/cost.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: extract CostCalculator to lib/cost.ts" Commit cost.ts - 
[refactor-the-code 22fa67d] refactor: extract CostCalculator to lib/cost.ts
 1 file changed, 57 insertions(+)
 create mode 100644 plugin/lib/cost.ts
step-finish
Tokens: 0 in / 141 out Cache: 10.3k read Finish: tool-calls
Assistant 01:39 PM claude-opus-4-5
step-start
📋 Todo List 6/12 done 1 in progress 5 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ✓ Create lib/cost.ts - CostCalculator class high
  • → Create lib/subagent.ts - SubagentAnalyzer class high
  • ○ Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 75.6k read Finish: tool-calls
Assistant 01:39 PM claude-opus-4-5
step-start

Now creating lib/subagent.ts:

📝 Created subagent.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/subagent.ts 149 lines 5.6 KB +
step-finish
💾 File changes 1 file e19cc290
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/subagent.ts
Tokens: 0 in / 1.8k out Cache: 75.9k read Finish: tool-calls
Assistant 01:39 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/subagent.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: extract SubagentAnalyzer to lib/subagent.ts" Commit subagent.ts - 
[refactor-the-code a386101] refactor: extract SubagentAnalyzer to lib/subagent.ts
 1 file changed, 148 insertions(+)
 create mode 100644 plugin/lib/subagent.ts
step-finish
Tokens: 0 in / 149 out Cache: 10.3k read Finish: tool-calls
Assistant 01:39 PM claude-opus-4-5
step-start
📋 Todo List 7/12 done 1 in progress 4 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ✓ Create lib/cost.ts - CostCalculator class high
  • ✓ Create lib/subagent.ts - SubagentAnalyzer class high
  • → Create lib/formatter.ts - OutputFormatter class high
  • ○ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 78.9k read Finish: tool-calls
Assistant 01:39 PM claude-opus-4-5
step-start

Now creating lib/formatter.ts:

📝 Created formatter.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/formatter.ts 365 lines 24.4 KB +
step-finish
💾 File changes 1 file 0b1d080f
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/formatter.ts
Tokens: 0 in / 11.5k out Cache: 79.1k read Finish: tool-calls
Assistant 01:41 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/lib/formatter.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: extract OutputFormatter to lib/formatter.ts" Commit formatter.ts - 
[refactor-the-code 7c6e17c] refactor: extract OutputFormatter to lib/formatter.ts
 1 file changed, 364 insertions(+)
 create mode 100644 plugin/lib/formatter.ts
step-finish
Tokens: 0 in / 139 out Cache: 10.3k read Finish: tool-calls
Assistant 01:41 PM claude-opus-4-5
step-start
📋 Todo List 8/12 done 1 in progress 3 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ✓ Create lib/cost.ts - CostCalculator class high
  • ✓ Create lib/subagent.ts - SubagentAnalyzer class high
  • ✓ Create lib/formatter.ts - OutputFormatter class high
  • → Refactor tokenscope.ts - keep only Plugin export with imports high
  • ○ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 91.8k read Finish: tool-calls
Assistant 01:41 PM claude-opus-4-5
step-start

Now refactoring tokenscope.ts to keep only the Plugin export with imports:

📝 Created tokenscope.ts /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/tokenscope.ts 100 lines 4.2 KB +
step-finish
💾 File changes 1 file c012e4a1
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/tokenscope.ts
Tokens: 0 in / 1.3k out Cache: 92.0k read Finish: tool-calls
Assistant 01:42 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/tokenscope.ts && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: simplify tokenscope.ts to use lib modules" Commit refactored tokenscope.ts - 
[refactor-the-code 6c221ca] refactor: simplify tokenscope.ts to use lib modules
 1 file changed, 27 insertions(+), 1267 deletions(-)
step-finish
Tokens: 0 in / 146 out Cache: 93.1k read Finish: tool-calls
Assistant 01:42 PM claude-opus-4-5
step-start
📋 Todo List 9/12 done 1 in progress 2 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ✓ Create lib/cost.ts - CostCalculator class high
  • ✓ Create lib/subagent.ts - SubagentAnalyzer class high
  • ✓ Create lib/formatter.ts - OutputFormatter class high
  • ✓ Refactor tokenscope.ts - keep only Plugin export with imports high
  • → Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ○ Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 94.4k read Finish: tool-calls
Assistant 01:42 PM claude-opus-4-5
step-start

Now updating install.sh:

📄 install.sh /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/install.sh 202 lines +
step-finish
Tokens: 0 in / 83 out Cache: 94.6k read Finish: tool-calls
Assistant 01:42 PM claude-opus-4-5
step-start
📝 Created install.sh /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/install.sh 214 lines 5.7 KB +
step-finish
💾 File changes 1 file 3e409f73
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/install.sh
Tokens: 1 in / 2.1k out Cache: 95.8k read Finish: tool-calls
Assistant 01:42 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/install.sh && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "refactor: update install.sh for multi-file plugin structure" Commit updated install.sh - 
[refactor-the-code d1fe439] refactor: update install.sh for multi-file plugin structure
 1 file changed, 18 insertions(+), 2 deletions(-)
step-finish
Tokens: 0 in / 139 out Cache: 98.3k read Finish: tool-calls
Assistant 01:42 PM claude-opus-4-5
step-start
📋 Todo List 10/12 done 1 in progress 1 pending -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ✓ Create lib/cost.ts - CostCalculator class high
  • ✓ Create lib/subagent.ts - SubagentAnalyzer class high
  • ✓ Create lib/formatter.ts - OutputFormatter class high
  • ✓ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ✓ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • → Update package.json - bump version to 1.3.0 medium
  • ○ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 100.4k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start

Now updating package.json to bump the version:

✎ package.json /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/package.json 1 lines → 1 lines -
Old
"version": "1.2.1"
New
"version": "1.3.0"
step-finish
💾 File changes 1 file 53f26675
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/package.json
Tokens: 0 in / 142 out Cache: 100.6k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add plugin/package.json && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "chore: bump version to 1.3.0" Commit version bump - 
[refactor-the-code 238eea2] chore: bump version to 1.3.0
 1 file changed, 1 insertion(+), 1 deletion(-)
step-finish
Tokens: 0 in / 136 out Cache: 101.8k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start
📋 Todo List 11/12 done 1 in progress -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ✓ Create lib/cost.ts - CostCalculator class high
  • ✓ Create lib/subagent.ts - SubagentAnalyzer class high
  • ✓ Create lib/formatter.ts - OutputFormatter class high
  • ✓ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ✓ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ✓ Update package.json - bump version to 1.3.0 medium
  • → Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 522 out Cache: 101.9k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start

Now updating the README.md to reflect the new architecture:

📄 README.md /home/ramtinj/personal-workspace/opencode-tokenscope/README.md (from line 400, 60 lines) 54 lines +
step-finish
Tokens: 0 in / 120 out Cache: 102.1k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start
✎ README.md /home/ramtinj/personal-workspace/opencode-tokenscope/README.md 11 lines → 29 lines -
Old
## Architecture

### Core Components

1. **TokenizerManager**: Loads and caches tokenizers (tiktoken, transformers)
2. **ModelResolver**: Detects model and selects appropriate tokenizer
3. **ContentCollector**: Extracts content from session messages, including tool call counts
4. **TokenAnalysisEngine**: Counts tokens and applies API telemetry adjustments
5. **CostCalculator**: Calculates costs from pricing database with cache-aware pricing
6. **SubagentAnalyzer**: Recursively fetches and analyzes child sessions from Task tool calls
7. **OutputFormatter**: Generates visual reports with charts and summaries
New
## Architecture

### File Structure

```
plugin/
├── tokenscope.ts        # Main entry point - Plugin export
├── lib/
│   ├── types.ts         # All interfaces and type definitions
│   ├── config.ts        # Constants, model maps, pricing loader
│   ├── tokenizer.ts     # TokenizerManager class
│   ├── analyzer.ts      # ModelResolver, ContentCollector, TokenAnalysisEngine
│   ├── cost.ts          # CostCalculator class
│   ├── subagent.ts      # SubagentAnalyzer class
│   └── formatter.ts     # OutputFormatter class
├── models.json          # Pricing data for 41+ models
├── package.json         # Plugin metadata
└── install.sh           # Installation script
```

### Core Components

1. **TokenizerManager** (`lib/tokenizer.ts`): Loads and caches tokenizers (tiktoken, transformers)
2. **ModelResolver** (`lib/analyzer.ts`): Detects model and selects appropriate tokenizer
3. **ContentCollector** (`lib/analyzer.ts`): Extracts content from session messages, including tool call counts
4. **TokenAnalysisEngine** (`lib/analyzer.ts`): Counts tokens and applies API telemetry adjustments
5. **CostCalculator** (`lib/cost.ts`): Calculates costs from pricing database with cache-aware pricing
6. **SubagentAnalyzer** (`lib/subagent.ts`): Recursively fetches and analyzes child sessions from Task tool calls
7. **OutputFormatter** (`lib/formatter.ts`): Generates visual reports with charts and summaries
step-finish
💾 File changes 1 file 57451394
  • 📄 /home/ramtinj/personal-workspace/opencode-tokenscope/README.md
Tokens: 0 in / 655 out Cache: 103.3k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start
$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope add README.md && git -C /home/ramtinj/personal-workspace/opencode-tokenscope commit -m "docs: update README with new multi-file architecture" Commit README update - 
[refactor-the-code c85d3df] docs: update README with new multi-file architecture
 1 file changed, 25 insertions(+), 7 deletions(-)
step-finish
Tokens: 0 in / 132 out Cache: 104.1k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start
📋 Todo List 12/12 done -
  • ✓ Create plugin/lib/ directory high
  • ✓ Create lib/types.ts - all interfaces and type guards high
  • ✓ Create lib/config.ts - constants, model maps, pricing loader high
  • ✓ Create lib/tokenizer.ts - TokenizerManager class high
  • ✓ Create lib/analyzer.ts - ModelResolver, ContentCollector, TokenAnalysisEngine high
  • ✓ Create lib/cost.ts - CostCalculator class high
  • ✓ Create lib/subagent.ts - SubagentAnalyzer class high
  • ✓ Create lib/formatter.ts - OutputFormatter class high
  • ✓ Refactor tokenscope.ts - keep only Plugin export with imports high
  • ✓ Update install.sh - add lib dir, update FILES array, download logic, verification high
  • ✓ Update package.json - bump version to 1.3.0 medium
  • ✓ Update README.md - update Architecture section medium
step-finish
Tokens: 0 in / 520 out Cache: 104.8k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start

All tasks are complete. Let me show you a summary of what was done:

$ git -C /home/ramtinj/personal-workspace/opencode-tokenscope log --oneline -15 Show commit history - 
c85d3df docs: update README with new multi-file architecture
238eea2 chore: bump version to 1.3.0
d1fe439 refactor: update install.sh for multi-file plugin structure
6c221ca refactor: simplify tokenscope.ts to use lib modules
7c6e17c refactor: extract OutputFormatter to lib/formatter.ts
a386101 refactor: extract SubagentAnalyzer to lib/subagent.ts
22fa67d refactor: extract CostCalculator to lib/cost.ts
1dc5297 refactor: extract analysis classes to lib/analyzer.ts
b8a8753 refactor: extract TokenizerManager to lib/tokenizer.ts
b244d3a refactor: extract config and model maps to lib/config.ts
f95be04 refactor: extract types and interfaces to lib/types.ts
0c28f19 refactor: add plugin/lib directory for multi-file structure
f5a9a60 Remove duplicate install.sh, keep only plugin/install.sh
bc33e37 Bump version to 1.2.1
93bd925 Clarify update instructions for different versions
step-finish
Tokens: 0 in / 113 out Cache: 104.9k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start
$ ls -la /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/ && echo "---" && ls -la /home/ramtinj/personal-workspace/opencode-tokenscope/plugin/lib/ Show final file structure +
step-finish
Tokens: 0 in / 126 out Cache: 106.1k read Finish: tool-calls
Assistant 01:43 PM claude-opus-4-5
step-start

Implementation complete. Here's a summary:

## Implementation Summary

### Commits Made (12 total)
1. refactor: add plugin/lib directory for multi-file structure
2. refactor: extract types and interfaces to lib/types.ts
3. refactor: extract config and model maps to lib/config.ts
4. refactor: extract TokenizerManager to lib/tokenizer.ts
5. refactor: extract analysis classes to lib/analyzer.ts
6. refactor: extract CostCalculator to lib/cost.ts
7. refactor: extract SubagentAnalyzer to lib/subagent.ts
8. refactor: extract OutputFormatter to lib/formatter.ts
9. refactor: simplify tokenscope.ts to use lib modules
10. refactor: update install.sh for multi-file plugin structure
11. chore: bump version to 1.3.0
12. docs: update README with new multi-file architecture

### New File Structure


text
plugin/
├── tokenscope.ts      (~100 lines - main entry point)
├── lib/
│   ├── types.ts       (~170 lines - interfaces & type guards)
│   ├── config.ts      (~85 lines - constants & model maps)
│   ├── tokenizer.ts   (~130 lines - TokenizerManager)
│   ├── analyzer.ts    (~400 lines - ModelResolver, ContentCollector, TokenAnalysisEngine)
│   ├── cost.ts        (~60 lines - CostCalculator)
│   ├── subagent.ts    (~150 lines - SubagentAnalyzer)
│   └── formatter.ts   (~365 lines - OutputFormatter)
├── models.json
├── package.json       (version 1.3.0)
└── install.sh         (updated for multi-file downloads)

### Changes Made
- Split 1340-line monolithic file into 8 focused modules
- Updated install.sh to download all lib files and create the lib directory
- Bumped version to 1.3.0
- Updated README with new architecture documentation

The plugin is ready for you to test!

step-finish
Tokens: 0 in / 537 out Cache: 106.5k read Finish: stop
User 01:44 PM anthropic/claude-opus-4-5
👥 build review changes [commit|branch|pr], defaults to uncommitted
Prompt
You are a code reviewer. Your job is to review code changes and provide actionable feedback. --- Input: this branch --- ## Determining What to Review Based on the input provided, determine which type of review to perform: 1. **No arguments (default)**: Review all uncommitted changes - Run: `git diff` for unstaged changes - Run: `git diff --cached` for staged changes 2. **Commit hash** (40-char SHA or short hash): Review that specific commit - Run: `git show this branch` 3. **Branch name**: Compare current branch to the specified branch - Run: `git diff this branch...HEAD` 4. **PR URL or number** (contains "github.com" or "pull" or looks like a PR number): Review the pull request - Run: `gh pr view this branch` to get PR context - Run: `gh pr diff this branch` to get the diff Use best judgement when processing input. --- ## What to Look For **Bugs** - Your primary focus. - Logic errors, off-by-one mistakes, incorrect conditionals - Edge cases: null/empty inputs, error conditions, race conditions - Security issues: injection, auth bypass, data exposure - Broken error handling that swallows failures **Structure** - Does the code fit the codebase? - Does it follow existing patterns and conventions? - Are there established abstractions it should use but doesn't? **Performance** - Only flag if obviously problematic. - O(n²) on unbounded data, N+1 queries, blocking I/O on hot paths ## Before You Flag Something Be certain. If you're going to call something a bug, you need to be confident it actually is one. - Only review the changes - do not review pre-existing code that wasn't modified - Don't flag something as a bug if you're unsure - investigate first - Don't flag style preferences as issues - Don't invent hypothetical problems - if an edge case matters, explain the realistic scenario where it breaks - If you need more context to be sure, use the tools below to get it ## Tools Use these to inform your review: - **Explore agent** - Find how existing code handles similar problems. Check patterns, conventions, and prior art before claiming something doesn't fit. - **Exa Code Context** - Verify correct usage of libraries/APIs before flagging something as wrong. - **Exa Web Search** - Research best practices if you're unsure about a pattern. If you're uncertain about something and can't verify it with these tools, say "I'm not sure about X" rather than flagging it as a definite issue. ## Tone and Approach 1. If there is a bug, be direct and clear about why it is a bug. 2. You should clearly communicate severity of issues, do not claim issues are more severe than they actually are. 3. Critiques should clearly and explicitly communicate the scenarios, environments, or inputs that are necessary for the bug to arise. The comment should immediately indicate that the issue's severity depends on these factors. 4. Your tone should be matter-of-fact and not accusatory or overly positive. It should read as a helpful AI assistant suggestion without sounding too much like a human reviewer. 5. Write in a manner that allows reader to quickly understand issue without reading too closely. 6. AVOID flattery, do not give any comments that are not helpful to the reader. Avoid phrasing like "Great job ...", "Thanks for ...".
Assistant 01:44 PM claude-opus-4-5
👥 build review changes [commit|branch|pr], defaults to uncommitted -
Prompt (73 lines) 
You are a code reviewer. Your job is to review code changes and provide actionable feedback.

---

Input: this branch

---

## Determining What to Review

Based on the input provided, determine which type of review to perform:

1. **No arguments (default)**: Review all uncommitted changes
   - Run: `git diff` for unstaged changes
   - Run: `git diff --cached` for staged changes

2. **Commit hash** (40-char SHA or short hash): Review that specific commit
   - Run: `git show this branch`

3. **Branch name**: Compare current branch to the specified branch
   - Run: `git diff this branch...HEAD`

4. **PR URL or number** (contains "github.com" or "pull" or looks like a PR number): Review the pull request
   - Run: `gh pr view this branch` to get PR context
   - Run: `gh pr diff this branch` to get the diff

Use best judgement when processing input.

---

## What to Look For

**Bugs** - Your primary focus.
- Logic errors, off-by-one mistakes, incorrect conditionals
- Edge cases: null/empty inputs, error conditions, race conditions
- Security issues: injection, auth bypass, data exposure
- Broken error handling that swallows failures

**Structure** - Does the code fit the codebase?
- Does it follow existing patterns and conventions?
- Are there established abstractions it should use but doesn't?

**Performance** - Only flag if obviously problematic.
- O(n²) on unbounded data, N+1 queries, blocking I/O on hot paths

## Before You Flag Something

Be certain. If you're going to call something a bug, you need to be confident it actually is one.

- Only review the changes - do not review pre-existing code that wasn't modified
- Don't flag something as a bug if you're unsure - investigate first
- Don't flag style preferences as issues
- Don't invent hypothetical problems - if an edge case matters, explain the realistic scenario where it breaks
- If you need more context to be sure, use the tools below to get it

## Tools

Use these to inform your review:

- **Explore agent** - Find how existing code handles similar problems. Check patterns, conventions, and prior art before claiming something doesn't fit.
- **Exa Code Context** - Verify correct usage of libraries/APIs before flagging something as wrong.
- **Exa Web Search** - Research best practices if you're unsure about a pattern.

If you're uncertain about something and can't verify it with these tools, say "I'm not sure about X" rather than flagging it as a definite issue.

## Tone and Approach

1. If there is a bug, be direct and clear about why it is a bug.
2. You should clearly communicate severity of issues, do not claim issues are more severe than they actually are.
3. Critiques should clearly and explicitly communicate the scenarios, environments, or inputs that are necessary for the bug to arise. The comment should immediately indicate that the issue's severity depends on these factors.
4. Your tone should be matter-of-fact and not accusatory or overly positive. It should read as a helpful AI assistant suggestion without sounding too much like a human reviewer.
5. Write in a manner that allows reader to quickly understand issue without reading too closely.
6. AVOID flattery, do not give any comments that are not helpful to the reader. Avoid phrasing like "Great job ...", "Thanks for ...".
Result (87 lines) 
Now I have a complete picture of the changes. This is a refactoring of a single-file plugin (~1300 lines) into a multi-file architecture with 7 modules. Let me review for issues.

---

## Code Review Summary

This PR refactors a monolithic `tokenscope.ts` (~1300 lines) into a multi-file architecture with 7 modules in `plugin/lib/`. The refactoring is clean and improves maintainability.

### Issues Found

**1. Bug: Unused imports in `analyzer.ts`** (Low severity)

`plugin/lib/analyzer.ts:1-13`

```typescript
import type {
  SessionMessage,
  SessionMessagePart,
  TokenModel,
  TokenAnalysis,
  CategoryEntrySource,
  CategoryEntry,
  CategorySummary,
  isToolPart,        // <-- These are type imports
  isReasoningPart,   // <-- but they're functions, not types
  isTextPart,
} from "./types"
```

The type guards `isToolPart`, `isReasoningPart`, and `isTextPart` are imported as types but also re-imported as values on the next line. The `import type` versions are unused. This is harmless but indicates a copy-paste oversight during refactoring.

**Suggested fix:** Remove the unused type imports:
```typescript
import type {
  SessionMessage,
  SessionMessagePart,
  TokenModel,
  TokenAnalysis,
  CategoryEntrySource,
  CategoryEntry,
  CategorySummary,
} from "./types"
```

---

**2. Potential Issue: Duplicated pricing lookup logic** (Low severity, code quality)

`plugin/lib/subagent.ts:137-146` duplicates the `getPricing` logic from `CostCalculator` (`plugin/lib/cost.ts:43-53`).

The `SubagentAnalyzer` class receives a `CostCalculator` in its constructor but then implements its own `getPricing` method instead of delegating to the calculator. If pricing lookup logic changes in `CostCalculator`, it would need to be updated in two places.

**Suggested fix:** Either:
- Make `CostCalculator.getPricing()` public and use it in `SubagentAnalyzer`
- Or extract pricing lookup to a shared utility

---

**3. Potential Issue: `install.sh` filename extraction doesn't handle `plugin/lib/` correctly**

`plugin/install.sh:115-122`

```bash
if [ "$dir" = "plugin" ]; then
    mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/plugin/$filename"
elif [ "$dir" = "plugin/lib" ]; then
    mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/plugin/lib/$filename"
else
    mv "$TEMP_DIR/$filename" "$OPENCODE_DIR/command/$filename"
fi
```

The `dir` variable is extracted using `dirname "$file"`, but if there are ever nested directories beyond `plugin/lib`, this approach would fail. However, given the current file structure, this works correctly. This is a minor structural concern, not a bug.

---

### No Issues Found With

- **Type definitions** in `types.ts` are well-structured
- **Module boundaries** are clean and logical
- **Error handling** is preserved from the original implementation
- **README documentation** updates correctly reflect the new structure
- **Verification step** in `install.sh` correctly includes all new files

<task_metadata>
session_id: ses_4e8429d4fffeJn2NqyEoouLMB0
</task_metadata>
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Assistant 01:44 PM claude-opus-4-5
step-start

## Code Review Results

The reviewer found 2 issues worth addressing:

### 1. Bug: Unused type imports in analyzer.ts (Low severity)

Lines 1-13 have redundant imports - the type guards are imported both as types AND as values:


typescript
import type {
  // ...
  isToolPart,        // <-- Unused, imported as type
  isReasoningPart,   // <-- Unused, imported as type  
  isTextPart,        // <-- Unused, imported as type
} from "./types"
import { isToolPart as toolGuard, ... } from "./types"  // <-- Actually used

### 2. Duplicated pricing logic in subagent.ts (Low severity, code quality)

The SubagentAnalyzer.getPricing() method duplicates the same logic as CostCalculator.getPricing(). If pricing logic changes, it needs updating in two places.

---

Would you like me to fix these issues? They're both minor but cleaning them up would improve the code quality.

step-finish
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