Updates

What’s new in dev-agent. We ship improvements regularly to help AI assistants understand your code better.

v0.5.0 — Modern JavaScript Support

Coming soon

Better coverage for how developers actually write code today.

Modern JavaScript and TypeScript codebases look very different from traditional OOP. React hooks, arrow functions, and configuration objects are the primary APIs — and dev-agent now understands them.

What’s New

🎯 Arrow Functions

// Now indexed! AI can find these via semantic search
export const useAuth = () => { ... }
const validateEmail = (email: string) => email.includes('@')

⚛️ React Hooks Detection

Hooks are automatically detected by the use* naming pattern. When you search for “authentication hook”, dev-agent knows useAuth is a hook — not just a function.

📦 Exported Constants

Configuration objects, context providers, and factory-created values are now searchable:

export const API_CONFIG = { baseUrl: '/api', timeout: 5000 }
export const ThemeContext = createContext({ dark: false })
export const SUPPORTED_LANGUAGES = ['typescript', 'javascript']

Why This Matters

Before v0.5.0, searching for “API configuration” wouldn’t find export const API_CONFIG = {...}. Now it does. This means:

• Better search results for modern React/TypeScript codebases
• More context for AI assistants to understand your code
• Fewer “I couldn’t find…” moments when asking about hooks or configs

v0.4.4 — Test File Discovery

Released November 2024

Search results now show related test files automatically.

When dev_search returns source files, it checks for matching test files (*.test.ts, *.spec.ts) and includes them in the response:

1. [89%] function: authenticate (src/auth.ts:15)
2. [84%] class: AuthMiddleware (src/middleware.ts:5)

---
Related test files:
  • src/auth.test.ts
  • src/middleware.test.ts

This helps AI assistants find both implementation and tests without extra searches — useful when fixing bugs or understanding expected behavior.

v0.4.0 — Intelligent Git History

Released November 2024

Semantic search over your commit history.

Ever tried to find “when did we add rate limiting?” by scrolling through git log? Now you can just ask:

New Tool: dev_history

Search commits by meaning, not just keywords:

> "Find commits related to authentication changes"

1. [92%] fix(auth): resolve token refresh race condition
   Author: jane@example.com | 3 days ago
   Files: src/auth/refresh.ts, src/auth/token.ts

2. [87%] feat(auth): add OAuth2 provider support  
   Author: john@example.com | 2 weeks ago
   Files: src/auth/oauth.ts, src/auth/providers/

Change Frequency in dev_map

See which parts of your codebase are actively changing:

packages/
├── 🔥 core/ (45 components) — 12 commits in 30d
├── ✏️ mcp-server/ (28 components) — 3 commits in 30d
├── 📝 cli/ (15 components) — 2 commits in 90d
└── subagents/ (35 components)

• 🔥 Hot — 10+ commits in last 30 days
• ✏️ Active — 3-9 commits in last 30 days
• 📝 Recent — Any commits in last 90 days

Context Assembly Improvements

dev_plan now includes related commits when assembling context for GitHub issues. AI assistants can see both what the issue asks for and how similar changes were made before.

v0.3.0 — Code Relationships

Released November 2024

Understand how your code connects.

New Tool: dev_refs

Find what calls what — and what’s called by what:

> "What functions call validateUser?"

Callers of validateUser:
1. AuthMiddleware.authenticate (src/middleware.ts:45)
2. LoginController.handleLogin (src/controllers/login.ts:23)
3. SessionManager.validateSession (src/session.ts:67)

Essential for impact analysis before refactoring.

Hot Paths in dev_map

See the most-referenced files in your codebase:

Hot Paths (most referenced):
  🔥 src/utils/logger.ts (47 references)
  🔥 src/types/index.ts (34 references)
  🔥 src/config.ts (28 references)

Smarter Context Assembly

dev_plan was refactored from generating task breakdowns to assembling rich context. Instead of making assumptions about how to implement something, it now gives AI assistants the context they need to figure it out themselves.

v0.1.0 — Initial Release

Released November 2024

The foundation: local-first code understanding for AI tools.

Core Features

• Semantic Search — Find code by meaning, not keywords
• MCP Integration — Works with Cursor, Claude Code, and any MCP client
• Multi-language — TypeScript, JavaScript, Go, Python, Rust, Markdown
• 100% Local — No cloud, no telemetry, all processing on your machine

Five Tools at Launch

Installation

One command to index, one command to install:

npm install -g dev-agent
dev index .
dev mcp install --cursor

What’s Next?

We’re working on:

• Incremental indexing — Only re-index changed files
• More languages — Better Go and Python support via tree-sitter
• Parallel search — Query multiple repos simultaneously

Have ideas? Open an issue  or join the discussion.