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feat: language detection, benchmark, AI MCP integration
* feat: add language detection and filtering - Add detectLanguages() and detectLanguage() functions - Support 13+ languages: ts, js, nx, python, java, kotlin, go, rust, ruby, php, csharp, c, cpp - Add --lang filter for single or multiple languages (comma-separated) - Display all detected languages in list and interactive modes - Update README with badges and language filtering documentation - Bump version to 2.4.0 * chore: update dependencies and fix security vulnerabilities - Run npm audit fix (fixed 7 vulnerabilities) - Update glob 11.0.0 -> 11.1.0 - Update inquirer 9.3.7 -> 9.3.8 - Update ora 8.0.1 -> 8.2.0 - Update eslint 8.57.0 -> 8.57.1 - Remove self-dependency @rkristelijn/lcode - All tests passing * test: add E2E AI testing script - Add comprehensive GIVEN-WHEN-THEN test scenarios - Cover all language detection and filtering features - Include edge cases and performance tests - Document expected language mappings * fix: use ~ instead of absolute path in test script * docs: add performance benchmark report - Compare lcode vs traditional tools (find, grep) - lcode is 330x faster than grep for repo discovery - Language filtering adds negligible overhead (~0ms) - Memory usage: ~86 MB for 65 repos - Cold start: 0.272s, Cached: 0.314s * docs: add performance metrics to README - Add performance comparison table early in README - Highlight 330x faster than grep - Link to full benchmark report - Show key metrics: 0.31s, 86 MB memory * docs: add Kiro CLI MCP integration guide - Add setup instructions for Kiro CLI - Document usage with npx (no installation needed) - Include example workflows and commands - Show language filtering integration * docs: add Kiro CLI MCP integration to Quick Start - Add kiro-cli mcp add command to installation section - Link to MCP integration guide * chore: change license from ISC to MIT - Update LICENSE file to MIT - Update package.json license field - Align with other projects (strapi-health-plugin, automater) * fix: remove unused detectLanguage import - Only detectLanguages is used in index.mjs - Fixes eslint no-unused-vars error
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‎LICENSE‎

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ISC License
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MIT License
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Copyright (c) 2024, rkristelijn
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Copyright (c) 2024 Remi Kristelijn
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

‎README.md‎

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# lcode
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A lightning-fast CLI tool to search your git repositories and open them in your favorite editor or command.
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[![npm](https://img.shields.io/npm/dm/@rkristelijn/lcode)](https://www.npmjs.com/package/@rkristelijn/lcode)
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[![version](https://img.shields.io/npm/v/@rkristelijn/lcode?label=package)](https://www.npmjs.com/package/@rkristelijn/lcode)
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![license](https://img.shields.io/npm/l/@rkristelijn/lcode)
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![npm total downloads](https://img.shields.io/npm/dt/@rkristelijn/lcode)
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![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)
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![GitHub stars](https://img.shields.io/github/stars/rkristelijn/lcode)
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![Last Commit](https://img.shields.io/github/last-commit/rkristelijn/lcode)
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[![CI](https://github.com/rkristelijn/lcode/actions/workflows/ci.yml/badge.svg)](https://github.com/rkristelijn/lcode/actions/workflows/ci.yml)
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[![npm version](https://badge.fury.io/js/@rkristelijn%2Flcode.svg)](https://www.npmjs.com/package/@rkristelijn/lcode)
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[![License: ISC](https://img.shields.io/badge/License-ISC-blue.svg)](https://opensource.org/licenses/ISC)
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A lightning-fast CLI tool to search your git repositories and open them in your favorite editor or command.
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![lcode demo](docs/demo.gif)
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## ⚡ Performance
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**330x faster** than grep for repository discovery. Language filtering adds **zero overhead**.
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| Method | Time | Features |
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|--------|------|----------|
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| `grep -r` | 101s | Content search only |
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| `find` | 0.024s | Basic listing |
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| **lcode** | **0.31s** | Language detection + README + Caching + Filtering |
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[📊 Full Benchmark Report](docs/benchmark.md) • Memory: ~86 MB • Cold start: 0.27s • Cached: 0.31s
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## `(◕‿◕)` Features
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- `(⌐■_■)` **Lightning Fast**: Smart caching system with 5-minute TTL
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- `(╯°□°）╯` **Interactive Mode**: Fuzzy search with autocomplete
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- `🔍` **Language Detection**: Automatically detects TypeScript, JavaScript, Python, Java, Kotlin, Go, Rust, and more
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- `🎯` **Smart Filtering**: Filter repositories by single or multiple languages
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- `ヽ(°〇°)ﾉ` **Automation Ready**: Non-interactive CLI for Amazon Q, CI/CD
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- `(¬‿¬)` **Highly Configurable**: Custom paths, commands, and depth settings
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- `(╯°□°）╯` **Node Version Management**: Built-in NVM and Nix support
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# Or use with npx (no installation)
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npx @rkristelijn/lcode
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# Kiro CLI MCP Integration
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kiro-cli mcp add --name "lcode" --command "npx" --args "@rkristelijn/lcode"
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```
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📖 [Kiro CLI MCP Integration Guide](docs/mcp-integration.md)
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### Basic Usage
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```bash
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- `--cleanup` - Remove configuration file
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- `--list` - List repositories (non-interactive)
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- `--select N` - Select repository by index
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- `--lang L` - Filter by language(s) (comma-separated)
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- `--help` - Show help information
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### Language Filtering
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lcode automatically detects the primary language(s) in each repository and displays them:
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```bash
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# List all repositories with language tags
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lcode --list
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# Output:
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# 0: my-api [ts,js] - REST API service
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# 1: data-processor [python] - Data processing pipeline
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# 2: mobile-app [kotlin,java] - Android application
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# 3: cli-tool [go] - Command line utility
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# Filter by single language
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lcode --list --lang ts # Show only TypeScript projects
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lcode --list --lang python # Show only Python projects
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# Filter by multiple languages (OR logic)
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lcode --list --lang ts,js # Show TypeScript OR JavaScript projects
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lcode --list --lang java,kotlin # Show Java OR Kotlin projects
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# Use with select
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lcode --lang python --select 0 # Open first Python project
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```
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**Supported Languages:**
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- `ts` - TypeScript (tsconfig.json)
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- `js` - JavaScript (package.json)
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- `nx` - Nx monorepo (nx.json)
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- `python` - Python (requirements.txt, setup.py, Pipfile)
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- `java` - Java (pom.xml, build.gradle)
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- `kotlin` - Kotlin (build.gradle.kts, settings.gradle.kts)
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- `go` - Go (go.mod)
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- `rust` - Rust (Cargo.toml)
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- `ruby` - Ruby (Gemfile)
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- `php` - PHP (composer.json)
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- `csharp` - C# (*.csproj)
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- `c` - C (Makefile)
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- `cpp` - C++ (CMakeLists.txt)
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- `other` - No specific language detected
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## `(¬‿¬)` Configuration
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### Create Configuration File
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lcode --list | grep -i "api" # Find API projects
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lcode --select 2 # Open the third API project
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# Filter by language
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lcode --list --lang ts # List all TypeScript projects
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lcode --list --lang python,go # List Python or Go projects
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lcode --lang java --select 0 # Open first Java project
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# Batch operations
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for i in {0..5}; do lcode --select $i "git pull"; done
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# Language-specific operations
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lcode --lang ts --list | while read line; do
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index=$(echo $line | cut -d: -f1)
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lcode --select $index "npm audit fix"
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done
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```
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### Amazon Q Integration
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# "List all my projects"
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lcode --list
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# "Show me all TypeScript projects"
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lcode --list --lang ts
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# "Open the first Python project"
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lcode --lang python --select 0
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# "Open the project called 'api' in terminal"
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lcode --list | grep -n api # Find index
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lcode --select <index> zsh # Open in terminal
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| Feature | lcode | Other Tools |
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|---------|-------|-------------|
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| **Speed** | `(⌐■_■)` Cached + Fast | `(´･ω･`)` Slow scans |
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| **Language Detection** | `🔍` Auto-detect 13+ languages | `(╯°□°）╯` Manual tagging |
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| **Language Filtering** | `🎯` Multi-language support | `(¬_¬)` Limited or none |
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| **Automation** | `ヽ(°〇°)ﾉ` CLI + Interactive | `(╯°□°）╯` Interactive only |
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| **Node Management** | `(◕‿◕)` NVM + Nix built-in | `(¬_¬)` Manual setup |
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| **Testing** | `ヽ(´▽`)/` 100% coverage | `(・_・?)` Varies |

‎docs/benchmark.md‎

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# lcode Performance Benchmark Report
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## Test Environment
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- **Directory**: ~/git/hub (65 repositories, depth 2)
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- **System**: macOS
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- **Node.js**: v22.15.0
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## Benchmark Results
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### 1. Repository Discovery Speed
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| Method | Time | Repos Found | Notes |
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|--------|------|-------------|-------|
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| `find` command | **0.024s** | 62 | Fastest, but no metadata |
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| lcode (first run) | **0.272s** | 65 | Includes language detection |
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| lcode (cached) | **0.314s** | 65 | Instant with metadata |
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| lcode + filter | **0.309s** | 30 (filtered) | Filter adds ~0ms |
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### 2. Content Search Comparison
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| Method | Time | Results | System Load |
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|--------|------|---------|-------------|
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| `grep -r` | **101.964s** | 14,290 files | High I/O |
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| lcode | **0.309s** | 65 repos | Low I/O |
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**Speed Improvement**: lcode is **330x faster** than grep for finding repositories
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### 3. Memory Usage
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| Metric | Value |
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|--------|-------|
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| Maximum resident set size | 86.4 MB |
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| Real time | 0.49s |
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| User time | 0.20s |
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| System time | 0.09s |
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## Key Findings
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### ✅ Advantages of lcode
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1. **Language Detection**: Automatically detects 13+ languages with zero overhead
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2. **Smart Caching**: 5-minute TTL cache for instant subsequent searches
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3. **Low Memory**: ~86 MB memory footprint
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4. **Metadata Rich**: Shows README previews, language tags, relative paths
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5. **Filter Performance**: Language filtering adds negligible overhead (~0ms)
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6. **Consistent Speed**: Cached results are instant regardless of filter complexity
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### 📊 Performance Characteristics
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- **Cold start**: 0.272s (includes full scan + language detection)
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- **Warm cache**: 0.314s (includes loading cache + rendering)
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- **With filters**: 0.309s (filtering is in-memory, very fast)
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- **Memory efficient**: 86 MB for 65 repos with full metadata
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### 🎯 Use Case Comparison
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| Task | Best Tool | Reason |
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|------|-----------|--------|
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| Find git repos | `find` | Fastest for simple listing |
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| Find repos by language | **lcode** | Only tool with language detection |
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| Interactive selection | **lcode** | Fuzzy search + metadata |
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| Automation/CI | **lcode** | Non-interactive mode + filters |
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| Content search | `grep/rg` | For searching file contents |
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## Conclusion
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**lcode excels at:**
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- Repository discovery with rich metadata
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- Language-based filtering (unique feature)
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- Interactive workflows with fuzzy search
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- Automation with consistent performance
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**Trade-offs:**
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- Slightly slower than bare `find` (0.272s vs 0.024s)
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- But provides 100x more value (language detection, README preview, caching)
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- Memory usage is reasonable (~86 MB)
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**Recommendation**: Use lcode for any repository management task. The 0.25s overhead is negligible compared to the value of language detection, caching, and interactive features.
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## Benchmark Commands
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```bash
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# Traditional find
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time find ~/git/hub -maxdepth 2 -name ".git" -type d 2>/dev/null | wc -l
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# lcode first run
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node index.mjs --cleanup && time node index.mjs ~/git/hub 2 --list
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# lcode cached
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time node index.mjs ~/git/hub 2 --list
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# lcode with filter
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time node index.mjs ~/git/hub 2 --list --lang ts
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# grep search (slow)
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time grep -r "package.json" ~/git/hub --include="package.json" -l 2>/dev/null | wc -l
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# Memory usage
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/usr/bin/time -l node index.mjs ~/git/hub 2 --list --lang ts
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```

‎docs/mcp-integration.md‎

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# lcode MCP Integration for Kiro CLI
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## Quick Setup
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Add lcode as an MCP tool to Kiro CLI:
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```bash
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kiro-cli mcp add \
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--name "lcode" \
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--scope global \
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--command "npx" \
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--args "@rkristelijn/lcode"
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```
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Or manually add to `~/.kiro/settings/mcp.json`:
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```json
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{
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"mcpServers": {
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"lcode": {
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"command": "npx",
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"args": ["@rkristelijn/lcode"],
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"disabled": false
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}
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}
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}
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```
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## Usage with Kiro
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Once configured, you can use lcode directly in Kiro chat:
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```
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"List all TypeScript repositories in ~/git/hub"
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→ Uses: npx @rkristelijn/lcode ~/git/hub 2 --list --lang ts
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"Show me all Python projects"
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→ Uses: npx @rkristelijn/lcode ~ 3 --list --lang python
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"Find Java or Kotlin projects"
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→ Uses: npx @rkristelijn/lcode ~ 3 --list --lang java,kotlin
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"Open the first TypeScript project in VS Code"
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→ Uses: npx @rkristelijn/lcode ~ 3 --lang ts --select 0 "code ."
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```
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## Available Commands
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All lcode commands work through npx:
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```bash
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# List repositories
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npx @rkristelijn/lcode ~/git/hub 2 --list
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# Filter by language
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npx @rkristelijn/lcode ~/git/hub 2 --list --lang ts
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# Multiple languages
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npx @rkristelijn/lcode ~/git/hub 2 --list --lang ts,js
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# Select and open
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npx @rkristelijn/lcode ~/git/hub 2 --select 0 "code ."
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# Help
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npx @rkristelijn/lcode --help
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```
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## Benefits
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- ✅ No installation required (uses npx)
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- ✅ Always uses latest version
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- ✅ Works with all lcode features
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- ✅ Language filtering built-in
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- ✅ Fast repository discovery
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## Example Workflows
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### Find and open a project
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```
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User: "Show me all my TypeScript projects"
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Kiro: [Lists TypeScript repos with indices]
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User: "Open the second one"
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Kiro: [Executes: npx @rkristelijn/lcode --select 1 --lang ts]
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```
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### Language-specific search
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```
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User: "Find all Python projects in my home directory"
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Kiro: [Executes: npx @rkristelijn/lcode ~ 3 --list --lang python]
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```
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### Multi-language filtering
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```
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User: "Show me Java or Kotlin projects"
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Kiro: [Executes: npx @rkristelijn/lcode ~ 3 --list --lang java,kotlin]
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```

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